|Publication number||USRE42710 E1|
|Application number||US 11/283,479|
|Publication date||Sep 20, 2011|
|Filing date||Nov 18, 2005|
|Priority date||Sep 19, 2000|
|Also published as||US6650444|
|Publication number||11283479, 283479, US RE42710 E1, US RE42710E1, US-E1-RE42710, USRE42710 E1, USRE42710E1|
|Original Assignee||Transpacific Systems, Llc|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (13), Classifications (10), Legal Events (4)|
|External Links: USPTO, USPTO Assignment, Espacenet|
1. Field of the Invention
The present invention generally relates to an apparatus for scanning objects of various types, and more particularly to a scanner which can compensate for optical characteristics according to using different wavelength light sources.
2. Description of the Prior Art
Optical scanning apparatuses are currently in great demand as a result of the rapid development of high speed, low cost imaging devices and the ever decreasing cost of personal computers. Optical scanners, in general, are capable of reflective and/or transmissive scanning of documents, photographs and the like, whereby reflective scanning is used with opaque objects such as photographs and transmissive scanning is used with transparent objects, such as slides and the like. Reflective scanners project light onto the side of the object to be scanned. The reflected light is viewed by an optical sensor which converts the reflected light into digital code. The code is then transmitted to the operator's computer for further processing. Transmissive scanners operate on the same principle except that light is projected through the transparent object being scanned. A great demand exists for high quality, low cost, low maintenance, easy to calibrate, versatile optical scanners capable of both high and low resolution reflective and transmissive scanning.
As shown on
Generally, there are many different types for scanned objects, such as paper document, transparent slide, and so on. A high-quality output image depends on the imaging system of a scanner for different types of objects. However, there are many factors related to the good imaging system, such as wavelength of light source, optical characteristics of optical devices and optical pathway, and so on. That is, the high-quality output images can't be satisfied for objects of various types if there is only one imaging system in a scanner.
Accordingly, it is an object of the present invention to provide an apparatus of scanning which has different light sources to fit the scanned objects of various types.
It is further object of the invention to provide a scanner which can adjust the location of a lens and a sensors array of the scanner according to using the light sources of different wavelengths.
It is another object of the invention to provide a scanner which can compensate for the optical characteristics of different light sources to improve the qualities of an output image.
In the present invention, an apparatus for scanning images comprises an image capture module having at least a lens and a sensors array for capturing light after scanning the object. A plurality of light sources comprise a visible light source and an infrared light source. Next, a key module of the present invention is a first translation module connected with the lens and the sensors array of the image capture module. To be specific, the first translation module is used for changing a first location of the lens and a second location of the sensors array according to using different the light sources so as to improve some optical characteristics, such as aberration resulting from different wavelengths of light sources. A power module connects with the first translation module and the light sources for supporting energy to the first translation module and the light sources. Moreover, a second translation module connects with the light sources and the image capture module, and the second translation driven by the power module. A control module connects to the power module and the image capture module, and a loading platform module has a platform and therein all the modules and the light sources are placed.
The foregoing aspects and many of the attendant advantages of this invention will become more readily appreciated as the same becomes better understood by reference to the following detailed description, when taken in conjunction with the accompanying drawings, wherein:
There is shown a representative portion of a scanner structure of the present invention in enlarged, cross-sections of two dimensional views for a scanner. The drawings are not necessarily to scale, as the size of the various devices are shown for clarify of illustration and should not be interpreted in a limiting sense. Accordingly, these regions will have dimensions, including length, width and depth, when fabricated in an actual device.
In the present invention, an a scanner for scanning an object comprises an image capture module having at least a lens and a sensors array for capturing light after scanning the object. A plurality of light sources comprise a visible light source and an infrared light source. Next, a key module of the present invention is a first translation module connected with the lens and the sensors array. To be specific, the first translation module is used for changing a first location of the lens and a second location of the sensors array according to using different the light sources so as to improve some optical characteristics, such as aberration resulting from different wavelengths of light sources. A power module connects with the first translation module and the light sources for supporting energy to the first translation module and the light sources. Moreover, a second translation module connects with the light sources and the image capture module, and the second translation driven by the power module. A control module connects to the power module and the image capture module, and a loading platform module has a platform and therein all the modules and the light sources are placed.
The embodiments of the present invention are described in detail hereinafter with reference to the accompanying drawings.
In the present invention, a scanning apparatus comprises a control module 10, light sources 11, a power module 12, an image capture module 13, a loading platform module 14, a first translation module 15, and a second translation module 16, as shown in
Next, the image capture module 13 has at least a lens and a sensors array wherein sensors can be charge-coupled devices. The lens is for converging light from any object onto the sensors array. The sensors array is for transforming the light into corresponding image electric signals. The power module 12 comprises power supplies, motors, gears and belts for supporting energies to any scanning process.
Next, the first translation module 15 comprises a plurality of feeding devices, such as feeding rods and feeding screws. The first translation module 15 can be driven by the power module 12 and changing locations of the lens or the sensors array. In the present invention, the first translation module 15 can adjust the locations of the lens or the sensors array to compensating some optical defeats such as aberration that results from switching different light sources. Moreover, the second translation module 16 also comprises a plurality of feeding devices and feeds the light sources 11 and the image capture module 13 in any scanning motion.
Following, one preferred embodiment is described in
As shown in
The other one preferred embodiment is shown as
As shown in
Accordingly, with adjusting the distance between the object and the lens or the sensors array, some optical defeats resulting from using different light sources can be compensated for getting better scanning images.
While the present invention has been described herein in terms of preferred embodiments, numerous modifications and variations will occur to a person the spirit and scope of the present invention. It is intended that the appended claims encompass those modifications and variations.
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|U.S. Classification||358/475, 358/498, 358/474, 358/497|
|International Classification||H04N1/00, H04N1/04|
|Cooperative Classification||H04N1/00806, H04N1/00795|
|European Classification||H04N1/00H, H04N1/00H2B4|
|Mar 20, 2012||CC||Certificate of correction|
|Jun 17, 2013||AS||Assignment|
Owner name: TITUSVILLE CANAVERAL LLC, DELAWARE
Free format text: MERGER;ASSIGNOR:TRANSPACIFIC SYSTEMS, LLC;REEL/FRAME:030628/0681
Effective date: 20130213
|Jun 18, 2013||AS||Assignment|
Owner name: INTELLECTUAL VENTURES I LLC, DELAWARE
Free format text: MERGER;ASSIGNOR:TITUSVILLE CANAVERAL LLC;REEL/FRAME:030639/0330
Effective date: 20130214
|Apr 24, 2015||FPAY||Fee payment|
Year of fee payment: 12