Book scanner with a uniform light source
First Claim
1. A book scanner with a uniform light source having a housing, a carriage moving in reciprocating motion in said housing, an original placed on said book scanner and being scanned with a scanning module disposed in said carriage, comprising:
- a transparent platen disposed on a top of said housing, wherein said original is placed onto said transparent platen; and
a light source having a substantially strip-shaped light tube disposed in said carriage and corresponding to said transparent platen, wherein a light beam from said light source transmitting through said transparent platen and illuminating said original, wherein said transparent platen comprises a first light transmission part and a second light transmission part, both said first and second light transmission parts are configured adjacently to form an angular structure, a crest line is formed along a joint of said first and second light transmission parts and said strip-shaped light source being lengthwise perpendicular to said crest line.
1 Assignment
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Accused Products
Abstract
A book scanner comprises a transparent platen, a carriage and a housing. The carriage is disposed in the housing, and the transparent platen with an angular structure is disposed on the housing for an original placed to be scanned. The carriage has a strip-shaped light tube disposed corresponding to the transparent platen. The part of the light source that has the highest luminance is disposed in the position farthest away from the transparent platen, while the part of the light source that has the lower luminance is disposed in the position closer to the transparent platen to assure a uniform and stable luminous intensity of light on each scan line when the light source illuminates the original.
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Citations
7 Claims
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1. A book scanner with a uniform light source having a housing, a carriage moving in reciprocating motion in said housing, an original placed on said book scanner and being scanned with a scanning module disposed in said carriage, comprising:
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a transparent platen disposed on a top of said housing, wherein said original is placed onto said transparent platen; and
a light source having a substantially strip-shaped light tube disposed in said carriage and corresponding to said transparent platen, wherein a light beam from said light source transmitting through said transparent platen and illuminating said original, wherein said transparent platen comprises a first light transmission part and a second light transmission part, both said first and second light transmission parts are configured adjacently to form an angular structure, a crest line is formed along a joint of said first and second light transmission parts and said strip-shaped light source being lengthwise perpendicular to said crest line. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification