WO2001035158A1 - Tinted contact lens and method for making same - Google Patents

Tinted contact lens and method for making same Download PDF

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Publication number
WO2001035158A1
WO2001035158A1 PCT/US2000/041611 US0041611W WO0135158A1 WO 2001035158 A1 WO2001035158 A1 WO 2001035158A1 US 0041611 W US0041611 W US 0041611W WO 0135158 A1 WO0135158 A1 WO 0135158A1
Authority
WO
WIPO (PCT)
Prior art keywords
iris
digitized
contact lens
digitized image
image
Prior art date
Application number
PCT/US2000/041611
Other languages
French (fr)
Inventor
Daniel G. Streibig
Original Assignee
Ocular Sciences, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ocular Sciences, Inc. filed Critical Ocular Sciences, Inc.
Priority to AU26196/01A priority Critical patent/AU2619601A/en
Priority to MXPA02004160A priority patent/MXPA02004160A/en
Priority to BRPI0015038-0A priority patent/BR0015038B1/en
Priority to DE60027189T priority patent/DE60027189T2/en
Priority to JP2001536632A priority patent/JP2003515181A/en
Priority to EP00989721A priority patent/EP1224501B1/en
Publication of WO2001035158A1 publication Critical patent/WO2001035158A1/en
Priority to HK03106345.6A priority patent/HK1054083A1/en

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00865—Applying coatings; tinting; colouring
    • B29D11/00894—Applying coatings; tinting; colouring colouring or tinting
    • B29D11/00903—Applying coatings; tinting; colouring colouring or tinting on the surface
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes
    • G02C7/046—Contact lenses having an iris pattern

Definitions

  • This invention relates to tinted contact lenses and methods of making tinted contact lenses.
  • Tinted contact lenses are often used for cosmetic purposes to change the apparent color of the wearer's irises. For example, a person with brown or blue eyes but desiring to have green eyes may wear contact lenses having a greenish pattern thereon to mask the wearer's irises with the greenish pattern.
  • tinting of contact lenses is achieved by printing a colored pattern onto a lens substrate via a pad printing process.
  • the pad printing process employs a generally flat steel plate also known as a cliche.
  • a pattern (or depression) is etched into the cliche by a photo-etching process.
  • ink placed in the pattern is transferred to the lens substrate by a printing pad.
  • different colored inks are placed into three or fewer different patterns and serially transferred to the lens substrate by printing pads.
  • a disadvantage associated with conventional methods of tinting contact lens substrates is that such methods cannot achieve patterns of high resolution.
  • the printed pattern on the lens substrate does not have nearly the detail of a human iris.
  • the inability to achieve patterns of high resolution also prevents use of more than three different patterns on a lens substrate. As such, an observer viewing the wearer's eyes from five feet away or closer may determine that the wearer is wearing tinted lenses.
  • Another disadvantage is the extensive labor needed to etch a pattern into the cliche. Typically, four to six "man-hours" are required to etch each pattern.
  • the pattern must generally be etched to precise depths so that the ink can be transferred effectively. Etching to such precise depths is often difficult. In many intricate or detailed patterns, depth variances of 3-5 microns may render the cliche useless.
  • Another disadvantage is that the corrosive chemicals (e.g., ferric chloride and hydrochloric acid) used to etch the pattern in the cliche are hazardous both to workers and to the environment. Thus, enhanced care and cost are needed in using and disposing of the chemicals.
  • corrosive chemicals e.g., ferric chloride and hydrochloric acid
  • an improved method for tinting contact lens substrates the provision of such a method of tinting a lens substrate in which the tinted lens substrate more closely resembles a human iris than does a tinted lens substrate made by conventional methods; the provision of a method of tinting a lens substrate to form a tinted lens having a pattern of greater intricacy; the provision of an improved method of forming a pattern in a cliche; the provision of a method of forming a precise, intricate pattern in a cliche; the provision of such a method of forming such a pattern in a less labor-intensive manner; the provision of a method of forming a pattern in a cliche without use of hazardous chemicals; and the provision of a tinted contact lens having a lens substrate an colorant image printed thereon of greater resolution than images printed on prior art tinted contact lenses.
  • a method of the present invention for making a tinted contact lens for insertion into an eye comprises providing a plate having a surface, and lasing the plate to form at least one depression in the surface of the plate.
  • the depression is of a shape constituting an iris portion pattern.
  • a fluent colorant is introduced into the depression.
  • the colorant is then transferred from the depression to a lens substrate in a manner so that the colorant colors the lens substrate in a colorant pattern of substantially the same shape as the iris portion pattern of the depression.
  • a method of making a tinted contact lens for insertion into an eye comprises digitizing an image of a human iris into a computer.
  • the digitized image is separated into a plurality of digitized image portions, which are used to form a plurality of depressions in a plurality of cliche portions.
  • Each depression is of a shape constituting an iris portion pattern.
  • Fluent colorants are introduced into the plurality of depressions.
  • the colorants are transferred from the depressions to the lens substrate in a manner so that the colorants color the lens substrate in a plurality of colorant patterns of substantially the same shape as the iris portion patterns of the depressions.
  • the colorant patterns combine with one another to color the lens substrate in a manner to simulate a human iris.
  • a tinted contact lens for insertion into an eye comprises a contact lens substrate and an iris-simulating pattern on the lens substrate.
  • the iris simulating pattern comprises at least four distinctly colored colorants.
  • Fig. 1 is a top plan view of a tinted contact lens of the present invention having a contact lens substrate and an iris simulating design printed on the substrate;
  • Fig. 2a is fragmented top plan view of a printing plate (cliche) portion having a first depression therein, the first depression being in the shape of a first iris portion pattern to be printed onto a contact lens substrate to form a first portion of the iris simulating design of Fig. 1;
  • Fig. 2b is fragmented top plan view of a cliche portion having a second depression therein, the second depression being in the shape of a second iris portion pattern to be printed onto a contact lens substrate to form a second portion of the iris simulating design of Fig. 1;
  • Fig. 2c is fragmented top plan view of a cliche portion having a third depression therein, the third depression being in the shape of a third iris portion pattern to be printed onto a contact lens substrate to form a third portion of the iris simulating design of Fig. 1;
  • Fig. 2d is fragmented top plan view of a cliche portion having a fourth depression therein, the fourth depression being in the shape of a fourth iris portion pattern to be printed onto a contact lens substrate to form a fourth portion of the iris simulating design of Fig. 1;
  • Fig. 3 is a flow chart showing the steps in forming the patterns of Figs. 2a-d in the cliche portions;
  • Fig. 4a is a schematic, side elevational view of the cliche portion of Fig. 2a showing ink filling the first depression and a doctor blade passed over the cliche portion to remove excess ink;
  • Fig. 4b is a schematic, side elevational view of the clich ⁇ portion of Fig. 4a in which a pad-printing pad is pressed against the cliche portion to transfer the ink from the depression to the pad;
  • Fig. 4c is a schematic, side elevational view of the pad of Fig. 4b aligned with a blank contact lens substrate;
  • Fig. 4d is a schematic, side elevational view similar to Fig. 4c, but showing the pad pressed against the contact lens substrate to transfer ink from the pad to the lens substrate;
  • Fig. 4e is a schematic, side elevational view similar to Fig. 4d, but showing the pad removed from the lens substrate to reveal a pattern printed on the lens substrate.
  • Corresponding reference characters indicate corresponding parts throughout the several views of the drawings.
  • a tinted contact lens of the present invention is indicated in its entirety by the reference numeral 20.
  • the contact lens 20 comprises a contact lens substrate 22 and an iris- simulating design, generally indicated at 24, on the lens substrate.
  • the contact lens substrate 22 is preferably a conventional clear contact lens.
  • the lens substrate 22 may be a corrective or non-corrective lens.
  • the iris simulating design 24 is generally annular in shape and is sized to cover or enhance a wearer's iris.
  • the iris simulating design 24 may be opaque to partially or completely mask the wearer's iris or may be at least somewhat translucent so that some of the wearer's iris may show through the design.
  • the term "tinted" is intended to encompass both iris simulating designs of translucent and/or opaque pigmentations.
  • the iris-simulating design 24 is multi-colored and is more preferably comprised of four or more separate colors.
  • a pad printing process is preferably used to print the iris- simulating design 24 on the lens substrate 22.
  • four or more separate design portions are serially printed on the lens substrate 22 during the printing process.
  • the design portions combine to form the multi-colored iris-simulating pattern 44.
  • two sub-processes are used for making the tinted contact lens 20.
  • the first sub-process is formation of a plurality of depressions 32, 34, 36, 38 (Figs. 2a-d) in one or more printing plates (cliches) 30.
  • the second sub-process is using the cliche(s) 30 in a pad printing process to transfer ink (or some other suitable fluent colorant) from the depressions to the lens substrate 22 (Fig. 1 ).
  • the ink is of a type well known in the tinted contact lens industry having binding properties enabling it to adhere to the lens substrate via a polymerization process.
  • the ink may be opaque or translucent after being transferred to the lens substrate.
  • the first sub-process is generally indicated at 40 in the flow-chart of Fig. 3.
  • an iris image is digitized into a computer. Digitizing the iris image may be accomplished by scanning a photograph or rendering of a human iris into the computer, or by use of a digital camera, or by using appropriate software to create an image by the computer itself. It is to be understood that the methods of digitizing an iris image mentioned herein are merely exemplary, and other methods of digitizing an iris image may be employed without departing from the scope of this invention.
  • the digitized iris image may also comprise a hybrid image formed from different aspects of two or more iris images.
  • the computer is preferably any commercially available computer having a suitable processor such as an Intel Pentium-3® processor.
  • the colors of the digitized iris image are separated into selectively distinctive layers by use of commercially available software, such as Adobe Illustrator® or Adobe PhotoShop®.
  • the iris image is comprised of thousands of tiny colored regions and the colors of the regions may encompass thousands of different colors.
  • the iris image is preferably analyzed by a designer for determining where color separations are to be made.
  • the image is separated into four, five, six, seven, eight, nine, ten, eleven, twelve, or more distinct color regions.
  • Each color region is preferably mapped via a raster-based image editor, such as Adobe PhotoShop®.
  • Each color region is then converted to grayscale and then converted to a halftone pattern (box 46).
  • Each halftone pattern is then passed through a vector-based computer drawing program, such as Adobe Illustrator®.
  • the halftone pattern (or digitized image portion) is adjusted and sized for export, preferably as an encapsulated postscript file, to a laser control unit of a suitable laser (indicated by box 48).
  • Each digitized image portion comprises the combination of all of the tiny regions of the digitized iris image assigned to one of the selected color ranges.
  • the laser is a yttrium aluminum garnet (YAG) laser, such as an Electrox® Scriba II, commercially available from Electrox USA, Indianapolis, Indiana.
  • the laser control unit is preferably operated with suitable software, such as that commercially available from Electrox USA.
  • the cliche 30 (e.g., Fig. 2a) is then aligned with the YAG laser.
  • the laser is then operated with appropriate aperture and power settings to meet the pattern width and depth requirements suitable to form the depressions 32, 34, 36, 38 in the portions of the cliche 30.
  • the laser is operated using baselines of 2 kilohertz, aperture of 3.8 mm, yielding 5/1000 particle beam, power at 70 watts, and speed frequency of 8 hits per second.
  • the laser forms each depression in an iris portion pattern to correspond to each digitized image portion.
  • the digitized image portions combine to represent the digitized iris image
  • the iris portion patterns of the depressions combine to represent the iris image to be printed on the contact lens substrate.
  • Figs. 2a-d show depressions 32, 34, 36, 38 formed in cliche portions.
  • the clich ⁇ portions may be portions of a single cliche or may be portions of multiple cliches.
  • the depressions may all be formed in a single cliche 30 or may each be in a separate cliche without departing from the scope of this invention.
  • a depression formed with a laser is capable of greater resolution than a depression formed with a photo etching process.
  • the resolution capabilities with the laser process is more than 9 times greater than that of the photo etching process.
  • the corrosive nature of the photo etching process applied at higher resolution tends to completely obscure and break down the pattern's definition.
  • the resolution limitation of the photo etching process creates barriers to achieve resolutions requiring increased color variations for multicolored contact lenses.
  • Another advantage of forming a depression with a laser rather than photo etching is elimination of the need to use toxic and hazardous chemicals, such as ferric nitrate, hydrochloric acid, and nitric acid. These chemicals increase chances of work related accidents or health issues. These chemicals are also hazardous to the environment and require EPA regulatory compliance for removal and disposal.. Also, the unpredictability inherent in the photo etching process makes it difficult to produce depressions of desired depth.
  • the desired depth of a typical depression used in a pad printing process to tint a contact lens is 17-25 microns. Depth variances with a photo etching process are generally ⁇ 3-5 microns.
  • the pattern rendered is useless; the plate must be resurfaced and re-lapped and the complete process repeated. Conversely, if the pattern achieves too much depth (which is the tendency in the industry), the evaporation of the excess ink thinners/retardant and polymers are released into the air, thereby decreasing air quality.
  • the laser process also increases the speed in which depressions may be formed in the cliche.
  • the labor required to prepare a typical pattern in the cliche via a photo etching process is 3-6 man-hours.
  • the labor to prepare such a pattern via the laser method of the present invention is less than one man-hour.
  • use of the laser process results in a depression of greater resolution, reduces health risks and decreases cost of manufacture.
  • the second sub-process i.e., transfer of ink from a depression in the cliche to the lens substrate 22
  • Figs. 4a-e The second sub-process (i.e., transfer of ink from a depression in the cliche to the lens substrate 22) is schematically shown in Figs. 4a-e.
  • the cliche 30 is shown having a depression 32 flooded with ink 60.
  • a doctor blade 62 is swept across the cliche 30 to wipe the ink 60 from the cliche in a manner so that the ink is in only the depression.
  • a conventional pad-printing pad 64 is aligned with the depression 32 and pressed against the cliche 30 to pick up the ink in the depression.
  • the pad 64 is then brought into registration (Fig. 4c) with a contact lens substrate 22 held on a lens holder 66 and then pressed (Fig.
  • the pad 64 is then released from the lens substrate 22and the ink is allowed to dry.
  • the first design portion 70 printed on the lens substrate 22 in this manner preferably has substantially the same shape as the pattern of the depression 32.
  • additional design portions are then serially printed on the lens substrate 22 by transferring ink from depressions 34 (Fig. 2b), 36 (Fig. 2c), 38 (Fig. 2d) in substantially the same manner as transferred from depression 32.
  • different ink colors are used for each printing pattern.
  • the design portions (colorant patterns) combine to form the multicolored iris-simulating pattern 44.
  • the iris-simulating pattern 44 has been described as being formed by the combination of four different colorant patterns printed on the contact lens substrate 22, it is to be understood that more or fewer colorant patterns may be combined to form an iris-simulating pattern (e.g. three, five, six, seven, eight, nine, ten, eleven, twelve, or more colorant patterns) without departing from the scope of this invention.
  • Preferably, however, four to twelve colorant patterns are printed on the lens substrate to form the iris simulating pattern.
  • each colorant pattern is a different color.

Abstract

A tinted contact lens for insertion into an eye comprises a contact lens substrate (22) and an iris-simulating pattern (24) on the lens substrate. The iris simulating pattern comprises at least four distinctly colored colorants. A method for making a tinted contact lens for insertion into an eye comprises providing a plate having a surface, and lasing the plate to form at least one depression in the surface of the plate. The depression is of a shape constituting an iris portion pattern. A fluent colorant is introduced into the depression. The colorant is then transferred from the depression to a lens substrate in a manner so that the colorant colors the lens substrate in a colorant pattern of substantially the same shape as the iris portion pattern of the depression.

Description

TINTED CONTACT LENS AND METHOD FOR MAKING SAME
Background of the Invention
This invention relates to tinted contact lenses and methods of making tinted contact lenses.
Tinted contact lenses are often used for cosmetic purposes to change the apparent color of the wearer's irises. For example, a person with brown or blue eyes but desiring to have green eyes may wear contact lenses having a greenish pattern thereon to mask the wearer's irises with the greenish pattern.
Conventionally, tinting of contact lenses is achieved by printing a colored pattern onto a lens substrate via a pad printing process. It is to be understood that the term "tinted" is intended to encompass colored patterns of translucent and/or opaque pigmentations. The pad printing process employs a generally flat steel plate also known as a cliche. A pattern (or depression) is etched into the cliche by a photo-etching process. In operation, ink placed in the pattern is transferred to the lens substrate by a printing pad. To achieve a tinted lens of multiple colors, different colored inks are placed into three or fewer different patterns and serially transferred to the lens substrate by printing pads. A disadvantage associated with conventional methods of tinting contact lens substrates is that such methods cannot achieve patterns of high resolution. In other words, the printed pattern on the lens substrate does not have nearly the detail of a human iris. The inability to achieve patterns of high resolution also prevents use of more than three different patterns on a lens substrate. As such, an observer viewing the wearer's eyes from five feet away or closer may determine that the wearer is wearing tinted lenses. Another disadvantage is the extensive labor needed to etch a pattern into the cliche. Typically, four to six "man-hours" are required to etch each pattern. Moreover, the pattern must generally be etched to precise depths so that the ink can be transferred effectively. Etching to such precise depths is often difficult. In many intricate or detailed patterns, depth variances of 3-5 microns may render the cliche useless. Another disadvantage is that the corrosive chemicals (e.g., ferric chloride and hydrochloric acid) used to etch the pattern in the cliche are hazardous both to workers and to the environment. Thus, enhanced care and cost are needed in using and disposing of the chemicals.
Summary Of The Invention
Among the several objects and advantages of the present invention may be noted the provision of an improved method for tinting contact lens substrates; the provision of such a method of tinting a lens substrate in which the tinted lens substrate more closely resembles a human iris than does a tinted lens substrate made by conventional methods; the provision of a method of tinting a lens substrate to form a tinted lens having a pattern of greater intricacy; the provision of an improved method of forming a pattern in a cliche; the provision of a method of forming a precise, intricate pattern in a cliche; the provision of such a method of forming such a pattern in a less labor-intensive manner; the provision of a method of forming a pattern in a cliche without use of hazardous chemicals; and the provision of a tinted contact lens having a lens substrate an colorant image printed thereon of greater resolution than images printed on prior art tinted contact lenses.
In general, a method of the present invention for making a tinted contact lens for insertion into an eye comprises providing a plate having a surface, and lasing the plate to form at least one depression in the surface of the plate. The depression is of a shape constituting an iris portion pattern. A fluent colorant is introduced into the depression. The colorant is then transferred from the depression to a lens substrate in a manner so that the colorant colors the lens substrate in a colorant pattern of substantially the same shape as the iris portion pattern of the depression.
In another aspect of the present invention, a method of making a tinted contact lens for insertion into an eye comprises digitizing an image of a human iris into a computer. The digitized image is separated into a plurality of digitized image portions, which are used to form a plurality of depressions in a plurality of cliche portions. Each depression is of a shape constituting an iris portion pattern. Fluent colorants are introduced into the plurality of depressions. The colorants are transferred from the depressions to the lens substrate in a manner so that the colorants color the lens substrate in a plurality of colorant patterns of substantially the same shape as the iris portion patterns of the depressions. The colorant patterns combine with one another to color the lens substrate in a manner to simulate a human iris. In yet another aspect of the present invention, a tinted contact lens for insertion into an eye comprises a contact lens substrate and an iris-simulating pattern on the lens substrate. The iris simulating pattern comprises at least four distinctly colored colorants.
Other objects and features will be in part apparent and in part pointed out herinafter.
Brief Description Of The Drawings
Fig. 1 is a top plan view of a tinted contact lens of the present invention having a contact lens substrate and an iris simulating design printed on the substrate; Fig. 2a is fragmented top plan view of a printing plate (cliche) portion having a first depression therein, the first depression being in the shape of a first iris portion pattern to be printed onto a contact lens substrate to form a first portion of the iris simulating design of Fig. 1;
Fig. 2b is fragmented top plan view of a cliche portion having a second depression therein, the second depression being in the shape of a second iris portion pattern to be printed onto a contact lens substrate to form a second portion of the iris simulating design of Fig. 1;
Fig. 2c is fragmented top plan view of a cliche portion having a third depression therein, the third depression being in the shape of a third iris portion pattern to be printed onto a contact lens substrate to form a third portion of the iris simulating design of Fig. 1;
Fig. 2d is fragmented top plan view of a cliche portion having a fourth depression therein, the fourth depression being in the shape of a fourth iris portion pattern to be printed onto a contact lens substrate to form a fourth portion of the iris simulating design of Fig. 1;
Fig. 3 is a flow chart showing the steps in forming the patterns of Figs. 2a-d in the cliche portions; Fig. 4a is a schematic, side elevational view of the cliche portion of Fig. 2a showing ink filling the first depression and a doctor blade passed over the cliche portion to remove excess ink;
Fig. 4b is a schematic, side elevational view of the clichό portion of Fig. 4a in which a pad-printing pad is pressed against the cliche portion to transfer the ink from the depression to the pad;
Fig. 4c is a schematic, side elevational view of the pad of Fig. 4b aligned with a blank contact lens substrate;
Fig. 4d is a schematic, side elevational view similar to Fig. 4c, but showing the pad pressed against the contact lens substrate to transfer ink from the pad to the lens substrate; and
Fig. 4e is a schematic, side elevational view similar to Fig. 4d, but showing the pad removed from the lens substrate to reveal a pattern printed on the lens substrate. Corresponding reference characters indicate corresponding parts throughout the several views of the drawings.
Description Of The Preferred Embodiment
Referring now to the drawings and first more particularly to Fig. 1 , a tinted contact lens of the present invention is indicated in its entirety by the reference numeral 20. The contact lens 20 comprises a contact lens substrate 22 and an iris- simulating design, generally indicated at 24, on the lens substrate. The contact lens substrate 22 is preferably a conventional clear contact lens. The lens substrate 22 may be a corrective or non-corrective lens. The iris simulating design 24 is generally annular in shape and is sized to cover or enhance a wearer's iris. The iris simulating design 24 may be opaque to partially or completely mask the wearer's iris or may be at least somewhat translucent so that some of the wearer's iris may show through the design. It is to be understood that the term "tinted" is intended to encompass both iris simulating designs of translucent and/or opaque pigmentations. Preferably, the iris-simulating design 24 is multi-colored and is more preferably comprised of four or more separate colors. A pad printing process is preferably used to print the iris- simulating design 24 on the lens substrate 22. As described in greater detail below, four or more separate design portions (each preferably of a different color) are serially printed on the lens substrate 22 during the printing process. The design portions (colorant patterns) combine to form the multi-colored iris-simulating pattern 44. Generally speaking, two sub-processes are used for making the tinted contact lens 20. The first sub-process is formation of a plurality of depressions 32, 34, 36, 38 (Figs. 2a-d) in one or more printing plates (cliches) 30. The second sub-process is using the cliche(s) 30 in a pad printing process to transfer ink (or some other suitable fluent colorant) from the depressions to the lens substrate 22 (Fig. 1 ). Preferably, the ink is of a type well known in the tinted contact lens industry having binding properties enabling it to adhere to the lens substrate via a polymerization process. The ink may be opaque or translucent after being transferred to the lens substrate.
The first sub-process is generally indicated at 40 in the flow-chart of Fig. 3. In the first step, represented by box 42, an iris image is digitized into a computer. Digitizing the iris image may be accomplished by scanning a photograph or rendering of a human iris into the computer, or by use of a digital camera, or by using appropriate software to create an image by the computer itself. It is to be understood that the methods of digitizing an iris image mentioned herein are merely exemplary, and other methods of digitizing an iris image may be employed without departing from the scope of this invention. The digitized iris image may also comprise a hybrid image formed from different aspects of two or more iris images. The computer is preferably any commercially available computer having a suitable processor such as an Intel Pentium-3® processor.
As represented by box 44, the colors of the digitized iris image are separated into selectively distinctive layers by use of commercially available software, such as Adobe Illustrator® or Adobe PhotoShop®. In practice, the iris image is comprised of thousands of tiny colored regions and the colors of the regions may encompass thousands of different colors. The iris image is preferably analyzed by a designer for determining where color separations are to be made. Preferably the image is separated into four, five, six, seven, eight, nine, ten, eleven, twelve, or more distinct color regions. Each color region is preferably mapped via a raster-based image editor, such as Adobe PhotoShop®. Each color region is then converted to grayscale and then converted to a halftone pattern (box 46). Each halftone pattern is then passed through a vector-based computer drawing program, such as Adobe Illustrator®. With the use of the drawing program, the halftone pattern (or digitized image portion) is adjusted and sized for export, preferably as an encapsulated postscript file, to a laser control unit of a suitable laser (indicated by box 48). Each digitized image portion comprises the combination of all of the tiny regions of the digitized iris image assigned to one of the selected color ranges. Preferably, the laser is a yttrium aluminum garnet (YAG) laser, such as an Electrox® Scriba II, commercially available from Electrox USA, Indianapolis, Indiana. The laser control unit is preferably operated with suitable software, such as that commercially available from Electrox USA. The cliche 30 (e.g., Fig. 2a) is then aligned with the YAG laser. Referring to box 50, the laser is then operated with appropriate aperture and power settings to meet the pattern width and depth requirements suitable to form the depressions 32, 34, 36, 38 in the portions of the cliche 30. By adjusting the various power settings and/or incorporating multiple passes to the patterns, an operator is able to use the laser to vaporize finite layers of the plate conforming to the exact depression shapes desired. Preferably, the laser is operated using baselines of 2 kilohertz, aperture of 3.8 mm, yielding 5/1000 particle beam, power at 70 watts, and speed frequency of 8 hits per second.
The laser forms each depression in an iris portion pattern to correspond to each digitized image portion. In other words, the digitized image portions combine to represent the digitized iris image, and the iris portion patterns of the depressions combine to represent the iris image to be printed on the contact lens substrate. As discussed above, Figs. 2a-d show depressions 32, 34, 36, 38 formed in cliche portions. It is to be understood that the clichέ portions may be portions of a single cliche or may be portions of multiple cliches. In other words, the depressions may all be formed in a single cliche 30 or may each be in a separate cliche without departing from the scope of this invention.
Use of a laser to form a depression in a cliche has several advantages over forming a depression by photo etching. To begin with, a depression formed with a laser is capable of greater resolution than a depression formed with a photo etching process. In particular, the resolution capabilities with the laser process is more than 9 times greater than that of the photo etching process. The corrosive nature of the photo etching process applied at higher resolution tends to completely obscure and break down the pattern's definition. The resolution limitation of the photo etching process creates barriers to achieve resolutions requiring increased color variations for multicolored contact lenses. By using a laser process to overcome the limitations in pattern resolution, a broader range of blending colors may be employed to create a tinted contact lens that provides a more natural appearance.
Another advantage of forming a depression with a laser rather than photo etching is elimination of the need to use toxic and hazardous chemicals, such as ferric nitrate, hydrochloric acid, and nitric acid. These chemicals increase chances of work related accidents or health issues. These chemicals are also hazardous to the environment and require EPA regulatory compliance for removal and disposal.. Also, the unpredictability inherent in the photo etching process makes it difficult to produce depressions of desired depth. The desired depth of a typical depression used in a pad printing process to tint a contact lens is 17-25 microns. Depth variances with a photo etching process are generally ± 3-5 microns. If the photo etching process does not achieve the desired depth, the pattern rendered is useless; the plate must be resurfaced and re-lapped and the complete process repeated. Conversely, if the pattern achieves too much depth (which is the tendency in the industry), the evaporation of the excess ink thinners/retardant and polymers are released into the air, thereby decreasing air quality.
Use of the laser process also increases the speed in which depressions may be formed in the cliche. In particular, the labor required to prepare a typical pattern in the cliche via a photo etching process is 3-6 man-hours. The labor to prepare such a pattern via the laser method of the present invention is less than one man-hour. Thus, use of the laser process results in a depression of greater resolution, reduces health risks and decreases cost of manufacture.
The second sub-process (i.e., transfer of ink from a depression in the cliche to the lens substrate 22) is schematically shown in Figs. 4a-e. In Fig. 4a, the cliche 30 is shown having a depression 32 flooded with ink 60. A doctor blade 62 is swept across the cliche 30 to wipe the ink 60 from the cliche in a manner so that the ink is in only the depression. As shown in Fig. 4b, a conventional pad-printing pad 64 is aligned with the depression 32 and pressed against the cliche 30 to pick up the ink in the depression. The pad 64 is then brought into registration (Fig. 4c) with a contact lens substrate 22 held on a lens holder 66 and then pressed (Fig. 4d) against the lens substrate to deposit the ink on the substrate in a pattern which constitutes a first design portion 70 of the iris simulating design (Fig. 1 ). The pad 64 is then released from the lens substrate 22and the ink is allowed to dry. The first design portion 70 printed on the lens substrate 22 in this manner preferably has substantially the same shape as the pattern of the depression 32. Although not shown, additional design portions are then serially printed on the lens substrate 22 by transferring ink from depressions 34 (Fig. 2b), 36 (Fig. 2c), 38 (Fig. 2d) in substantially the same manner as transferred from depression 32. Preferably, different ink colors are used for each printing pattern. The design portions (colorant patterns) combine to form the multicolored iris-simulating pattern 44.
Although the iris-simulating pattern 44 has been described as being formed by the combination of four different colorant patterns printed on the contact lens substrate 22, it is to be understood that more or fewer colorant patterns may be combined to form an iris-simulating pattern (e.g. three, five, six, seven, eight, nine, ten, eleven, twelve, or more colorant patterns) without departing from the scope of this invention. Preferably, however, four to twelve colorant patterns are printed on the lens substrate to form the iris simulating pattern. Also preferably, each colorant pattern is a different color.
In view of the above, it will be seen that the several objects of the invention are achieved and other advantageous results attained.
As various changes could be made in the above constructions and methods without departing from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

Claims

What Is Claimed Is:
1. A method of making a tinted contact lens for insertion into an eye comprising: providing a plate having a surface; lasing the plate to form at least one depression in the surface of the plate, the depression being of a shape constituting an iris portion pattern; introducing a fluent colorant into the depression; providing a contact lens substrate; transferring the colorant from the depression to the lens substrate in a manner so that the colorant colors the lens substrate in a colorant pattern of substantially the same shape as the iris portion pattern of the depression.
2. A method as set forth in claim 1 wherein transferring the colorant from the depression to the lens substrate comprises transferring the colorant from the depression to the lens substrate via a pad printing process.
3. A method as set forth in claim 1 wherein transferring the colorant from the depression to the lens substrate comprises: providing a pad; bringing the pad and plate into contact with one another in a manner to transfer the colorant from the depression of the plate to the pad; bringing the pad and lens substrate into contact with one another in a manner to transfer the colorant from the pad to the lens substrate.
4. A method as set forth in claim 1 wherein the step of lasing the plate comprises lasing the plate with a YAG laser.
I I
5. A method as set forth in claim 1 wherein the step of lasing the plate to form at least one depression in the surface of the plate comprises lasing the plate to form a plurality of depressions in the surface of the plate, each depression being of a shape constituting an iris portion pattern.
6. A method as set forth in claim 5 wherein the step of introducing a fluent colorant into the depression comprises introducing a plurality of different fluent colorants into the plurality of depressions, and wherein the step of transferring the colorant from the depression to the lens substrate comprises transferring each colorant from its corresponding depression to the lens substrate.
7. A method as set forth in claim 5 wherein the colorants are serially transferred from their corresponding depressions to the lens substrate to form a multi-colored printed iris image on the lens substrate.
8. A method as set forth in claim 6 further comprising: digitizing an image of a human iris into a computer; separating the digitized image into a plurality of digitized image portions; using the plurality of digitized image portions to determine the shape of the iris portion patterns; and wherein the step of using the plurality of digitized image portions to determine the shape of the iris portion patterns precedes the step of lasing the plate to form a plurality of depressions.
9. A method as set forth in claim 1 further comprising: digitizing an image of a human iris into a computer; using at least a portion of the digitized image to determine the shape of the iris portion pattern; and wherein the steps of digitizing and using at least of portion of the digitized image precedes the step of lasing the plate.
10. A method of making a tinted contact lens for insertion into an eye comprising: digitizing an image of a human iris into a computer; separating the digitized image into a plurality of digitized image portions; using the plurality of digitized image portions to form a plurality of depressions in a plurality of cliche portions, each depression being of a shape constituting an iris portion pattern; introducing fluent colorants into the plurality of depressions; providing a contact lens substrate; transferring the colorants from the depressions to the lens substrate in a manner so that the colorants color the lens substrate in a plurality of colorant patterns of substantially the same shape as the iris portion patterns of the depressions, the colorant patterns combining with one another to color the lens substrate in a manner to simulate a human iris.
11. A method as set forth in claim 10 wherein transferring the colorants from the depressions to the lens substrate comprises: providing a plurality of pads; bringing the pads and cliche portions into contact with one another in a manner to transfer the colorants from the depressions to the pads; bringing the pads and lens substrate into contact with one another in a manner to transfer the colorants from the pads to the lens substrate.
12. A method of making a tinted contact lens as set forth in claim 10 wherein the digitized iris image includes a plurality of discrete regions and wherein the step of separating the digitized iris image into a plurality of digitized image portions comprises: selecting a plurality of color ranges; assigning each of the regions of the digitized iris image as corresponding to one of the plurality of color ranges, each digitized image portion comprising the combination of all of the regions of the digitized iris image assigned to one of the selected color ranges.
13. A method of making a tinted contact lens as set forth in claim 10 wherein the step of using the plurality of digitized image portions to form a plurality of depressions in a plurality of cliche portions includes forming the plurality of depressions by lasing the cliche portions.
14. A method as set forth in claim 13 wherein the step of lasing the cliche portions comprises lasing the cliche portions with a YAG laser.
15. A method as set forth in claim 13 wherein transferring the colorants from the depressions to the lens substrate comprises transferring the colorants from the depressions to the lens substrate via a pad printing process.
16. A method as set forth in claim 10 wherein separating the digitized image into a plurality of digitized image portions comprises separating the digitized image into at least four digitized image portions, and wherein the step of using the plurality of digitized image portions to form a plurality of depressions comprises using the plurality of digitized image portions to form at least four digitized image portions.
17. A method as set forth in claim 10 wherein separating the digitized image into a plurality of digitized image portions comprises separating the digitized image into at least five digitized image portions, and wherein the step of using the plurality of digitized image portions to form a plurality of depressions comprises using the plurality of digitized image portions to form at least five digitized image portions.
18. A method as set forth in claim 10 wherein separating the digitized image into a plurality of digitized image portions comprises separating the digitized image into at least six digitized image portions, and wherein the step of using the plurality of digitized image portions to form a plurality of depressions comprises using the plurality of digitized image portions to form at least six digitized image portions.
19. A method as set forth in claim 10 wherein separating the digitized image into a plurality of digitized image portions comprises separating the digitized image into at least seven digitized image portions, and wherein the step of using the plurality of digitized image portions to form a plurality of depressions comprises using the plurality of digitized image portions to form at least seven digitized image portions.
20. A method as set forth in claim 10 wherein separating the digitized image into a plurality of digitized image portions comprises separating the digitized image into at least eight digitized image portions, and wherein the step of using the plurality of digitized image portions to form a plurality of depressions comprises using the plurality of digitized image portions to form at least eight digitized image portions.
21. A tinted contact lens for insertion into an eye, the contact lens comprising a contact lens substrate and an iris-simulating pattern on the lens substrate, the iris simulating pattern comprising at least four distinctly colored colorants.
22. A tinted contact lens as set forth in claim 21 wherein the iris simulating pattern comprises at least four colorant patterns printed on the contact lens substrate, each colorant pattern being of a distinct colorant.
23. A tinted contact lens as set forth in claim 22 wherein each colorant is an ink.
24. A tinted contact lens as set forth in claim 23 wherein each ink is opaque.
25. A method of producing a contact lens comprising: transferring a digitized image of an iris of an eye to a substrate useful for producing a contact lens.
26. The method of claim 25 wherein the transferring step produces a substantially complete image of the iris on the substrate.
27. The method of claim 25 wherein the substrate is sized and adapted to be a contact lens for a human eye.
28. The method of claim 25 wherein the transferring step comprises printing the digitized image onto the substrate.
29. The method of claim 25 wherein the image of the iris transferred to the substrate comprises a plurality of distinct colors.
30. The method of claim 25 wherein the image of the iris transferred to the substrate comprises at least four distinct colors.
31. The method of claim 25 wherein the transferring step occurs with the aid of a computer.
32. The method of claim 31 which further comprises providing a digitized image of an iris in the computer.
33. The method of claim 32 which further comprises separating the digitized image into a plurality of digitized iris image portions
34. The method of claim 33 wherein the separating step occurs in the computer.
35. The method of claim 33 wherein the transferring step includes transferring each digitized iris image portion to the substrate.
36. The method of claim 33 wherein the plurality of digitized iris image portions is at least four iris image portions.
37. The method of claim 25 wherein the transferring step includes: using a plurality of digitized iris image portions to form a plurality of depressions in a plurality of cliche portions, each depression being of a shape corresponding to one of the image portions; introducing colorants into the plurality of depressions; and providing the colorants from the depressions to the substrate in a manner so that the colorants color the substrate in a plurality of colorant patterns of substantially the same shape as the depressions.
38. A contact lens comprising: a contact lens substrate; and an image of an iris of an eye located on the contact lens substrate, the image of the iris being obtained by transferring a digitized image of an iris of an eye to the contact lens substrate.
39. The contact lens of claim 38 wherein the image of the iris on the contact lens substrate is a substantially complete image of an iris of an eye.
40. The contact lens of claim 38 wherein the image of the iris on the contact lens substrate comprises a plurality of distinct colors.
41. The contact lens of claim 38 wherein the image of the iris on the contact lens substrate comprises at least four distinct colors.
42. The contact lens of claim 38 wherein the transferring step comprises printing the digitized iris image onto the substrate.
43. The contact lens of claim 38 wherein the image of the iris is transferred to the contact lens substrate with the aid of a computer.
44. The contact lens of claim 38 wherein the image of the iris on the contact lens substrate is the result of transferring a plurality of digitized iris image portions to the substrate.
45. The contact lens of claim 44 wherein the plurality of digitized iris image portions is at least four iris image portions.
46. The contact lens of claim 38 wherein the transferring includes: using a plurality of digitized iris image portions to form a plurality of depressions in a plurality of cliche portions, each depression being of a shape corresponding to one of the image portions; introducing colorants into the plurality of depressions; and providing the colorants from the depressions to the substrate in a manner so that the colorants color the substrate in a plurality of colorant patterns of substantially the same shape as the depressions.
PCT/US2000/041611 1999-10-28 2000-10-25 Tinted contact lens and method for making same WO2001035158A1 (en)

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AU26196/01A AU2619601A (en) 1999-10-28 2000-10-25 Tinted contact lens and method for making same
MXPA02004160A MXPA02004160A (en) 1999-10-28 2000-10-25 Tinted contact lens and method for making same.
BRPI0015038-0A BR0015038B1 (en) 1999-10-28 2000-10-25 contact lens, and methods for producing a contact lens for an eye, and for manufacturing a tinted contact lens for insertion into an eye.
DE60027189T DE60027189T2 (en) 1999-10-28 2000-10-25 TINTED CONTACT LENS AND THEIR MANUFACTURING METHOD
JP2001536632A JP2003515181A (en) 1999-10-28 2000-10-25 Tinted contact lens and method of manufacturing the same
EP00989721A EP1224501B1 (en) 1999-10-28 2000-10-25 Tinted contact lens and method for making same
HK03106345.6A HK1054083A1 (en) 1999-10-28 2003-09-05 Tinted contact lens and method for making same

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US09/428,817 US6488375B2 (en) 1999-10-28 1999-10-28 Tinted contact lens and method for making same

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EP (1) EP1224501B1 (en)
JP (1) JP2003515181A (en)
KR (1) KR100767539B1 (en)
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001096934A2 (en) * 2000-06-12 2001-12-20 Novartis Ag Colored contact lens having a more natural appearance and method of making same
EP2480929A1 (en) * 2009-09-23 2012-08-01 Novartis AG Colored contact lens based on amorphous images

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2224003C (en) * 1995-06-07 2010-04-13 Progenics Pharmaceuticals, Inc. Fluorescence resonance energy transfer screening assay for the identification of hiv-1 envelope glycoprotein-medicated cell
US6344545B1 (en) * 1996-06-14 2002-02-05 Progenics Pharmaceuticals, Inc. Method for preventing HIV-1 infection of CD4+ cells
US20040086528A1 (en) * 1996-06-14 2004-05-06 Progenics Pharmaceuticals, Inc. Uses of a chemokine receptor for inhibiting HIV-1 infection
US6488375B2 (en) * 1999-10-28 2002-12-03 Ocular Sciences, Inc. Tinted contact lens and method for making same
US7048375B2 (en) 1999-11-01 2006-05-23 Praful Doshi Tinted lenses and methods of manufacture
WO2001040846A2 (en) 1999-11-01 2001-06-07 Praful Doshi Tinted lenses and methods of manufacture
US7267846B2 (en) * 1999-11-01 2007-09-11 Praful Doshi Tinted lenses and methods of manufacture
US6880932B2 (en) * 1999-11-01 2005-04-19 Praful Doshi Tinted lenses and methods of manufacture
US6827440B2 (en) * 2000-01-03 2004-12-07 Wesley Jessen Company Colored contact lens with a more natural appearance
US6746120B2 (en) * 2000-10-30 2004-06-08 Novartis Ag Method and system for ordering customized cosmetic contact lenses
US6655804B2 (en) * 2001-06-29 2003-12-02 Daniel G. Streibig Colored contact lens and method of making same
US20030152693A1 (en) * 2002-02-12 2003-08-14 Su Kai C. Methods of applying a coating to an optical surface
EP1366892A1 (en) * 2002-05-28 2003-12-03 Mi Gwang Contact Lens Co., Ltd Colored contact lens and method of manufacturing the same
US7001542B2 (en) * 2002-05-31 2006-02-21 Mi Gwang Contact Lens Co., Ltd. Colored contact lens and method for manufacturing the same
US20040106707A1 (en) * 2002-11-13 2004-06-03 Kai Su Protective coatings and methods of applying and using the same
KR100945356B1 (en) * 2002-12-27 2010-03-09 엘지디스플레이 주식회사 Fabrication method of color filter of liquid crystal display device
KR20040071368A (en) * 2003-02-05 2004-08-12 정병진 Cosmetic color contact lens and manufacturing method for printing the same
US6948815B2 (en) * 2003-07-28 2005-09-27 Ceramoptec Industries, Inc. Laser safety contact lenses
US7641336B2 (en) * 2004-05-12 2010-01-05 Johnson & Johnson Vision Care, Inc Tinted contact lenses with combined limbal ring and iris patterns
US20060155561A1 (en) * 2005-01-12 2006-07-13 Harper William A Mass customization of liquid packets
US20060158610A1 (en) * 2005-01-20 2006-07-20 Streibig Daniel G Method of coloring a contact lens
WO2008033481A2 (en) * 2006-09-13 2008-03-20 Praful Doshi Tinted lenses and methods of manufacture
BR112012007373B1 (en) 2009-10-01 2020-11-03 Coopervision International Holding Company, Lp silicone hydrogel contact lenses and methods for making silicone hydrogel contact lenses
SG187129A1 (en) 2010-07-29 2013-02-28 Novartis Ag Colored contact lenses and method of making the same
US8944878B2 (en) 2010-09-17 2015-02-03 Mckenzie Sports Products, Llc Artificial eye and method of manufacture
JP6097221B2 (en) 2010-12-14 2017-03-15 ノバルティス アーゲー Color contact lens
USD755868S1 (en) * 2015-02-11 2016-05-10 Johnson & Johnson Vision Care, Inc. Contact lens
USD755870S1 (en) * 2015-02-11 2016-05-10 Johnson & Johnson Vision Care, Inc. Contact lens
USD755871S1 (en) * 2015-02-11 2016-05-10 Johnson & Johnson Vision Care, Inc. Contact lens
USD756432S1 (en) * 2015-02-11 2016-05-17 Johnson & Johnson Vision Care, Inc. Contact lens
USD755869S1 (en) * 2015-02-11 2016-05-10 Johnson & Johnson Vision Care, Inc. Contact lens
USD756433S1 (en) * 2015-04-15 2016-05-17 Johnson & Johnson Vision Care, Inc. Contact lens
USD757145S1 (en) * 2015-04-15 2016-05-24 Johnson & Johnson Vision Care, Inc. Contact lens
USD765751S1 (en) * 2015-04-15 2016-09-06 Johnson & Johnson Vision Care, Inc. Contact lens
USD755872S1 (en) * 2015-04-15 2016-05-10 Johnson & Johnson Vision Care, Inc. Contact lens
US9715129B2 (en) * 2015-04-15 2017-07-25 Johnson & Johnson Vision Care, Inc. Contact lens with multi-layered pattern
USD756434S1 (en) * 2015-04-15 2016-05-17 Johnson & Johnson Vision Care, Inc. Contact lens
US10642068B2 (en) 2016-07-15 2020-05-05 Tectus Corporation Process for customizing an active contact lens
US11194179B2 (en) * 2016-07-15 2021-12-07 Tectus Corporation Wiring on curved surfaces
USD824444S1 (en) 2017-04-13 2018-07-31 Novartis Ag Contact lens
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US10156736B2 (en) * 2017-04-13 2018-12-18 Novartis Ag Colored contact lenses and method of making the same
USD829795S1 (en) 2017-04-13 2018-10-02 Novartis Ag Contact lens
USD824443S1 (en) 2017-04-13 2018-07-31 Novartis Ag Contact lens
CN109940910A (en) * 2017-12-21 2019-06-28 均贺科技股份有限公司 The contact lenses of the radium-shine processing of pulsed light transfer module
JP2019124763A (en) * 2018-01-12 2019-07-25 均賀科技股▲ふん▼有限公司Ｊｕｎ Ｈｅ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．， Ｌｔｄ． Contact lens transfer module subjected to pulse laser processing
CN113874019A (en) 2019-05-20 2021-12-31 辉瑞大药厂 Combinations comprising benzodioxoles as GLP-1R agonists for the treatment of NASH/NAFLD and related diseases
KR102149839B1 (en) * 2020-03-09 2020-08-31 김대곤 Method of manufacture for colored contact lens
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4525044A (en) * 1983-05-05 1985-06-25 Bauman Robert C Soft contact lens with surface identification and method of using same
US4582402A (en) * 1984-04-16 1986-04-15 Schering Corporation Color-imparting contact lenses
US5414477A (en) * 1989-11-01 1995-05-09 Wesley-Jessen Corporation Colored contact lens having very natural appearance
US5733333A (en) * 1996-09-16 1998-03-31 Sankey; Gregory Artificial eye

Family Cites Families (106)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US573333A (en) * 1896-12-15 Bung-hole protector and funnel combined
CA710230A (en) 1965-05-25 R. Rich Alvido Surface tinted contact lenses
US211757A (en) * 1879-01-28 Improvement in machines for cleaning fiber and hair
US3536386A (en) 1967-10-27 1970-10-27 Morris Spivack Contact lens with simulated iris
US3679504A (en) 1968-04-05 1972-07-25 Ceskoslovenska Akademie Ved Method of forming color effects in hydrogel contact lenses and ophthalmic prostheses
US3712718A (en) 1970-10-23 1973-01-23 J Legrand Corneal contact lens
US4099859A (en) 1974-12-02 1978-07-11 High Voltage Engineering Corporation Contact lens having a smooth surface layer of a hydrophilic polymer
US4136250A (en) 1977-07-20 1979-01-23 Ciba-Geigy Corporation Polysiloxane hydrogels
US4189546A (en) 1977-07-25 1980-02-19 Bausch & Lomb Incorporated Polysiloxane shaped article for use in biomedical applications
US4153641A (en) 1977-07-25 1979-05-08 Bausch & Lomb Incorporated Polysiloxane composition and contact lens
US4130708A (en) 1977-12-09 1978-12-19 Ppg Industries, Inc. Siloxane urethane acrylate radiation curable compounds for use in coating compositions
US4158089A (en) 1977-12-27 1979-06-12 Wesley-Jessen Inc. Contact lenses of high water content
US4182802A (en) 1977-12-27 1980-01-08 Samuel Loshaek Hydrophilic polymers and contact lenses of high water content
DE3106186A1 (en) 1981-02-19 1982-09-09 Wacker-Chemie GmbH, 8000 München METHOD FOR PRODUCING ORGANOPOLYSILOXANS AND USE OF THIS ORGANOP
US4559059A (en) 1981-08-12 1985-12-17 Ciba-Geigy Corporation Tinted contact lenses and a method for their preparation
US4424328A (en) 1981-12-04 1984-01-03 Polymer Technology Corporation Silicone-containing contact lens material and contact lenses made thereof
US4405773A (en) 1982-02-05 1983-09-20 Schering Corporation Hydrophylic contact lenses and methods for making same
US4638025A (en) 1982-02-08 1987-01-20 Color Optics, Ltd. Method of pigmenting water-absorbable plastic and products therefrom
US4463149A (en) 1982-03-29 1984-07-31 Polymer Technology Corporation Silicone-containing contact lens material and contact lenses made thereof
US4558931A (en) 1982-04-02 1985-12-17 Color Optics, Ltd. (Partnership) Colored soft contact lens
AU546039B2 (en) 1982-05-08 1985-08-08 Menicon Co., Ltd Oxygen permeable hard contact lens
JPS5919918A (en) 1982-07-27 1984-02-01 Hoya Corp Oxygen permeable hard contact lens
EP0108886A3 (en) 1982-09-20 1984-11-14 Ciba-Geigy Ag Silicone-containing hard contact lens materials having increased oxygen permeability
US4472327A (en) 1983-01-31 1984-09-18 Neefe Charles W Method of making hydrogel cosmetic contact lenses
US4701038A (en) 1983-01-31 1987-10-20 Bausch & Lomb Incorporated Cosmetic contact lens
US4652622A (en) 1983-04-29 1987-03-24 Bausch & Lomb Incorporated Polysiloxane composition with improved surface wetting characteristics and biomedical devices made thereof
US4704017A (en) 1984-04-16 1987-11-03 Schering Corporation Process for manufacturing colored contact lenses
US4720188A (en) 1984-04-16 1988-01-19 Schering Corporation Process for manufacturing colored contact lenses and lenses made by the process
US4605712A (en) 1984-09-24 1986-08-12 Ciba-Geigy Corporation Unsaturated polysiloxanes and polymers thereof
US4681412A (en) * 1984-10-01 1987-07-21 Lemelson Jerome H Contact lens containing light sensitive material
US4744647A (en) 1984-12-04 1988-05-17 Lens Plus Co. Semi-opaque corneal contact lens or intraoccular lens and method of formation
FR2579196B1 (en) * 1985-03-21 1992-06-26 Saint Gobain Isover IMPROVEMENT IN DEVICES FOR FORMING MINERAL FIBERS USING CENTRIFUGATION WHEELS
US4711943A (en) 1985-04-26 1987-12-08 Sola U.S.A. Inc. Hydrophilic siloxane monomers and dimers for contact lens materials, and contact lenses fabricated therefrom
US4668240A (en) 1985-05-03 1987-05-26 Schering Corporation Pigment colored contact lenses and method for making same
US4686267A (en) 1985-10-11 1987-08-11 Polymer Technology Corporation Fluorine containing polymeric compositions useful in contact lenses
US4867552A (en) 1986-02-24 1989-09-19 Sunsoft Corp. Eye color change contact lens
US4840477A (en) 1986-02-24 1989-06-20 Sunsoft Corp. Dyed color change contact lens
US4745857A (en) 1986-02-28 1988-05-24 Markem Corporation Programmable pad printing apparatus and method
US4719657A (en) 1986-03-27 1988-01-19 Bausch & Lomb Incorporated Method of forming iris variegation patterns on contact lenses
JPS62288812A (en) 1986-06-07 1987-12-15 Nippon Contact Lens:Kk Marking method for contact lens
IL80039A0 (en) 1986-09-16 1986-12-31 Saul Sterman Method and system for tinting contact lenses
US4740533A (en) 1987-07-28 1988-04-26 Ciba-Geigy Corporation Wettable, flexible, oxygen permeable, substantially non-swellable contact lens containing block copolymer polysiloxane-polyoxyalkylene backbone units, and use thereof
US4780515A (en) 1987-02-05 1988-10-25 Bausch & Lomb Incorporated Continuous-wear lenses having improved physical properties
US5238613A (en) 1987-05-20 1993-08-24 Anderson David M Microporous materials
US5244799A (en) 1987-05-20 1993-09-14 Anderson David M Preparation of a polymeric hydrogel containing micropores and macropores for use as a cell culture substrate
US4812598A (en) 1987-06-18 1989-03-14 Ocular Technologies, Inc. Gas permeable contact lens and method and materials for its manufacture
IL82961A0 (en) 1987-06-23 1987-12-20 Med Optics Corp Colored contact lens and methods for the production thereof
FR2622201B1 (en) 1987-10-23 1990-03-23 Essilor Int WETABLE SILICON ELASTOMER SUITABLE FOR THE MANUFACTURE OF CONTACT LENSES
US4963159A (en) 1987-11-24 1990-10-16 Schering Corporation Hydrophilic colored contact lens
US4857072A (en) 1987-11-24 1989-08-15 Schering Corporation Hydrophilic colored contact lenses
US4810764A (en) 1988-02-09 1989-03-07 Bausch & Lomb Incorporated Polymeric materials with high oxygen permeability and low protein substantivity
US5070169A (en) 1988-02-26 1991-12-03 Ciba-Geigy Corporation Wettable, flexible, oxygen permeable contact lens containing block copolymer polysiloxane-polyoxyalkylene backbone units and use thereof
EP0330616B1 (en) 1988-02-26 1991-06-05 Ciba-Geigy Ag Wettable, flexible, oxygen permeable contact lens containing block copolymer polysiloxane-polyoxyalkylene backbone units, and use thereof
US5070170A (en) 1988-02-26 1991-12-03 Ciba-Geigy Corporation Wettable, rigid gas permeable, substantially non-swellable contact lens containing block copolymer polysiloxane-polyoxyalkylene backbone units, and use thereof
US4921205A (en) 1988-05-17 1990-05-01 Sola Usa, Inc. Lens mold assembly
US5120121A (en) 1988-07-21 1992-06-09 Allergan, Inc. Colored lens
JPH02139238A (en) 1988-09-13 1990-05-29 Sony Corp Form cylinder device of intaglio
US4889421A (en) 1988-09-30 1989-12-26 Cohen Allen L Contact lens with cosmetic pattern
US5018849A (en) 1988-11-16 1991-05-28 Ciba-Geigy Corporation Colored contact lens and methods of making the same
US5205212A (en) 1989-03-17 1993-04-27 Wolfe Gene H Method of reducing ink electrets in gravure web printing
WO1990012840A2 (en) 1989-04-14 1990-11-01 Schering Corporation Color binding mechanism for contact lenses
AU637361B2 (en) 1989-04-24 1993-05-27 Novartis Ag Polysiloxane-polyoxyalkylene block copolymers and ophthalmic devices containing them
US5334681A (en) 1989-06-20 1994-08-02 Ciba-Geigy Corporation Fluorine and/or silicone containing poly(alkylene-oxide)-block copolymer hydrogels and contact lenses thereof
JP2557986B2 (en) 1989-09-20 1996-11-27 トーメー産業株式会社 Method for dyeing hydrous contact lenses
US5010141A (en) 1989-10-25 1991-04-23 Ciba-Geigy Corporation Reactive silicone and/or fluorine containing hydrophilic prepolymers and polymers thereof
WO1991010155A1 (en) 1989-12-29 1991-07-11 Hoya Corporation Contact lens material and contact lens
US6337040B1 (en) * 1990-01-29 2002-01-08 Pbh, Inc Colored contact lenses and method of making same
DE4012279A1 (en) * 1990-04-17 1991-10-24 Laser Optronic Printing blocks prodn. from aluminium - by oxidising block prior to working with laser beam to avoid vaporised metal deposits
DK0455587T3 (en) 1990-05-02 1995-09-04 Ciba Geigy Ag New polymers and hard, gas-permeable contact lenses thereof
US5158718A (en) 1990-08-02 1992-10-27 Pilkington Visioncare, Inc. Contact lens casting
EP0472496A3 (en) 1990-08-20 1992-12-02 Ciba-Geigy Ag Method of producing a contact lens and contact lens produced thereby
WO1992007013A1 (en) 1990-10-11 1992-04-30 Permeable Technologies, Inc. Novel silicone-containing polymers and oxygen permeable hydrophilic contact lenses therefrom
US5160463A (en) 1990-10-30 1992-11-03 Pilkington Visioncare, Inc. Method of manufacturing a contact lens
US5158717A (en) 1990-11-27 1992-10-27 Bausch & Lomb Incorporated Method of molding shaped polymeric articles
EP0593528A4 (en) 1991-05-09 1996-10-02 Allergan Inc Pad printing coating composition and printing process
CA2116849C (en) 1991-09-12 2001-06-12 Yu-Chin Lai Wettable silicone hydrogel compositions and methods
CA2122251C (en) 1991-11-05 1998-02-03 Yu-Chin Lai Wettable silicone hydrogel compositions and methods for their manufacture
US5310779A (en) 1991-11-05 1994-05-10 Bausch & Lomb Incorporated UV curable crosslinking agents useful in copolymerization
US5786883A (en) 1991-11-12 1998-07-28 Pilkington Barnes Hind, Inc. Annular mask contact lenses
JP2951105B2 (en) 1992-05-08 1999-09-20 株式会社メニコン Marking device for contact lenses
US5260000A (en) 1992-08-03 1993-11-09 Bausch & Lomb Incorporated Process for making silicone containing hydrogel lenses
JP3195662B2 (en) 1992-08-24 2001-08-06 株式会社メニコン Ophthalmic lens materials
JP2774233B2 (en) 1992-08-26 1998-07-09 株式会社メニコン Ophthalmic lens materials
US5336797A (en) 1992-12-30 1994-08-09 Bausch & Lomb Incorporated Siloxane macromonomers
FI95720C (en) 1993-05-06 1996-03-11 Freddie Bensky Method for dyeing contact lenses and dye coating composition
US5467149A (en) 1993-06-15 1995-11-14 Bausch & Lomb Incorporated Highly visible markings for contact lenses
FR2709756B1 (en) 1993-09-10 1995-10-20 Essilor Int Hydrophilic, transparent material with high oxygen permeability, based on a polymer with interpenetrating networks, its method of preparation and manufacture of soft contact lenses with high oxygen permeability.
JP3500182B2 (en) 1994-04-04 2004-02-23 ソニー株式会社 Plate material for laser plate making
JPH0811256A (en) 1994-07-01 1996-01-16 Affinity Kk Autonomously responsive laminate, manufacture thereof and window used thereof
US5867247A (en) 1994-10-27 1999-02-02 Leonard Bloom Apparatus and method for simulation of visual disabilities
DE19518587A1 (en) * 1995-05-20 1996-11-21 Tampoprint Gmbh Printing block made of aluminium@
US5704017A (en) 1996-02-16 1997-12-30 Microsoft Corporation Collaborative filtering utilizing a belief network
JPH10112566A (en) 1996-10-07 1998-04-28 Furukawa Electric Co Ltd:The Semiconductor laser
US5936705A (en) 1997-03-31 1999-08-10 Wesley Jensen Corporation Pattern for color modifying contact lens
JPH11139023A (en) * 1997-11-06 1999-05-25 Mitsubishi Paper Mills Ltd Method for making lithographic printing plate
US5936704A (en) 1997-12-22 1999-08-10 Gabrielian; Grant Marked contact lens bearing optical marking element
JPH11207921A (en) * 1998-01-22 1999-08-03 Fuji Photo Film Co Ltd Method for forming lithographic printing plate
US6143026A (en) 1998-02-04 2000-11-07 Meakem; Thomas J. Process for the production of a prosthetic eye
KR20010041824A (en) * 1998-03-12 2001-05-25 스타이너 토마스 에프. Colored contact lenses with a more natural appearance
US6030078A (en) * 1998-09-04 2000-02-29 Wesley Jessen Corporation Colored contact lenses that change the appearance of the iris to olive green
US6099379A (en) * 1998-09-17 2000-08-08 Eppley; Brad A. Eye article for taxidermy form
US6196683B1 (en) * 1999-04-23 2001-03-06 Wesley Jessen Corporation Pearlescent contact lens
US6276266B1 (en) 1999-05-20 2001-08-21 Illinois Tool Works, Inc. Multicolor pad printing system
US6213604B1 (en) 1999-05-20 2001-04-10 Bausch & Lomb Incorporated Plasma surface treatment of silicone hydrogel contact lenses with a flexible carbon coating
US6488375B2 (en) * 1999-10-28 2002-12-03 Ocular Sciences, Inc. Tinted contact lens and method for making same
WO2001040846A2 (en) 1999-11-01 2001-06-07 Praful Doshi Tinted lenses and methods of manufacture

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4525044A (en) * 1983-05-05 1985-06-25 Bauman Robert C Soft contact lens with surface identification and method of using same
US4582402A (en) * 1984-04-16 1986-04-15 Schering Corporation Color-imparting contact lenses
US5414477A (en) * 1989-11-01 1995-05-09 Wesley-Jessen Corporation Colored contact lens having very natural appearance
US5733333A (en) * 1996-09-16 1998-03-31 Sankey; Gregory Artificial eye

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001096934A2 (en) * 2000-06-12 2001-12-20 Novartis Ag Colored contact lens having a more natural appearance and method of making same
WO2001096934A3 (en) * 2000-06-12 2002-05-16 Jessen Wesley Corp Colored contact lens having a more natural appearance and method of making same
EP2480929A1 (en) * 2009-09-23 2012-08-01 Novartis AG Colored contact lens based on amorphous images
EP2480929A4 (en) * 2009-09-23 2014-01-01 Novartis Ag Colored contact lens based on amorphous images

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