WO2007002797A3 - Method and apparatus for aperture sculpting in a microlens array film - Google Patents

Method and apparatus for aperture sculpting in a microlens array film Download PDF

Info

Publication number
WO2007002797A3
WO2007002797A3 PCT/US2006/025290 US2006025290W WO2007002797A3 WO 2007002797 A3 WO2007002797 A3 WO 2007002797A3 US 2006025290 W US2006025290 W US 2006025290W WO 2007002797 A3 WO2007002797 A3 WO 2007002797A3
Authority
WO
WIPO (PCT)
Prior art keywords
light
reflective layer
microlenses
apertures
absorptive
Prior art date
Application number
PCT/US2006/025290
Other languages
French (fr)
Other versions
WO2007002797A2 (en
Inventor
James F Munro
Original Assignee
Reflexite Corp
James F Munro
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 Reflexite Corp, James F Munro filed Critical Reflexite Corp
Priority to EP06785808A priority Critical patent/EP1899760A4/en
Priority to JP2008519543A priority patent/JP2009500663A/en
Publication of WO2007002797A2 publication Critical patent/WO2007002797A2/en
Publication of WO2007002797A3 publication Critical patent/WO2007002797A3/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0012—Arrays characterised by the manufacturing method
    • G02B3/0025—Machining, e.g. grinding, polishing, diamond turning, manufacturing of mould parts
    • 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
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00278—Lenticular sheets
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • G02B3/0056—Arrays characterized by the distribution or form of lenses arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G03B21/62—Translucent screens
    • G03B21/625—Lenticular translucent screens
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938—Using specific optical elements
    • G02B27/095—Refractive optical elements
    • G02B27/0955—Lenses
    • G02B27/0961—Lens arrays
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/30—Collimators
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133605—Direct backlight including specially adapted reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source

Abstract

A collimating sheet, for use with a backlit display and the like, that includes a substrate, a plurality of microlenses on the output side of the substrate, a specularly reflective layer on the side of the substrate opposite the microlenses, and a plurality of apertures in the reflective layer in direct correspondence to the microlenses of the lens array. The specularly reflective layer can be relatively thinner than a diffuse reflective layer, which allows light to pass through the more readily. One or more layers of dielectric can be placed on top of one or more reflective material layers to further improves overall reflectivity. Apertures are preferably made in the light- absorptive and reflective layers with a laser ablation process wherein laser light illuminates the output side of the film. The laser light is brought to a focus by the lenslets of the lens array onto the light-absorptive layer, which then ablates a hole or aperture into the light-absorptive and reflective layer. In this way, the apertures are self-aligned with the lenslets.
PCT/US2006/025290 2005-06-29 2006-06-29 Method and apparatus for aperture sculpting in a microlens array film WO2007002797A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06785808A EP1899760A4 (en) 2005-06-29 2006-06-29 Method and apparatus for aperture sculpting in a microlens array film
JP2008519543A JP2009500663A (en) 2005-06-29 2006-06-29 Collimating microlens array

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US69483805P 2005-06-29 2005-06-29
US60/694,838 2005-06-29

Publications (2)

Publication Number Publication Date
WO2007002797A2 WO2007002797A2 (en) 2007-01-04
WO2007002797A3 true WO2007002797A3 (en) 2009-04-30

Family

ID=37596036

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2006/025289 WO2007002796A2 (en) 2005-06-29 2006-06-29 Collimating microlens array
PCT/US2006/025290 WO2007002797A2 (en) 2005-06-29 2006-06-29 Method and apparatus for aperture sculpting in a microlens array film

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/US2006/025289 WO2007002796A2 (en) 2005-06-29 2006-06-29 Collimating microlens array

Country Status (5)

Country Link
US (2) US7706073B2 (en)
EP (2) EP1899759A4 (en)
JP (2) JP2009500662A (en)
CN (2) CN101506715A (en)
WO (2) WO2007002796A2 (en)

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US7706073B2 (en) 2010-04-27
WO2007002797A2 (en) 2007-01-04
EP1899760A2 (en) 2008-03-19
EP1899759A2 (en) 2008-03-19
CN101405637A (en) 2009-04-08
US7679828B2 (en) 2010-03-16
CN101506715A (en) 2009-08-12
WO2007002796A3 (en) 2008-10-09
EP1899759A4 (en) 2011-05-11
WO2007002796A2 (en) 2007-01-04
JP2009500662A (en) 2009-01-08
JP2009500663A (en) 2009-01-08

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