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US 2002/0154344 A1Published application
System and method for providing uniform illumination as received by an optical detector
AssigneeHewlett-Packard Development Company, L.P.
InventorEdward S. Beeman
Life of this patent
Estimating the term…
Abstract
The present invention is directed to a system and method which capture images by use of an optical detector. The system and method illuminate a scan region utilizing a bulb that emits light of greater intensity near its extremities than at its center to provide image light to an optical detector via an optical reduction component.
Claims20
A system for capturing an image by an optical detector, said system comprising:
- illumination system to illuminate a scan region, wherein the illumination system includes a bulb that emits light of greater intensity near its extremities than at its center;
- and
- optical reduction component to reduce image light for receipt by said optical detector.
A method of producing a digitized image comprising the steps of:
- illuminating a scan region utilizing a bulb that emits light of greater intensity near its extremities than at its center;
- reducing image light received from the scan region for capture by an optical detector;
- and
- capturing image light with the optical detector to produce the digitized image.
1 more element
A system for producing a digitized image comprising the steps of:
- means for illuminating a scan region utilizing a bulb that emits light of greater intensity near its extremities than at its center;
- means for reducing image light received from the scan region for capturing;
- and
- means for capturing image light to produce the digitized image.
1 more element
A bulb for providing light, said bulb comprising:
- a central portion that emits light of lesser intensity than distal portions.
Dependencies are inferred from the claim text.