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US 2017/0346984 A1Published application
Scanner apparatus
AssigneeToshiba Tec Kabushiki Kaisha
InventorShinsuke YAJIMA
Life of this patent
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Abstract
In accordance with an embodiment, a scanner apparatus includes an image pickup device and a light shielding member. The light shielding member is positioned to prevent generation of stray light reflected inside an image pickup window and entering the image pickup device and stray light reflected on a surface of a filter and entering the image pickup device, the stray light being generated due to illumination light of an illumination light source of the image pickup device.
Claims10
A scanner apparatus, comprising:
- a casing including an image pickup window;
- an image pickup device provided within the casing to pick up an image of an image pickup region outside the casing through the image pickup window;
- an illumination light source provided within the casing to radiate illumination light toward the image pickup region;
- a light-transmissive filter positioned approximately orthogonally to an optical axis of the image pickup device between the image pickup device and the image pickup window;
- and
- a light shielding member provided on a surface of the filter to shield the illumination light, the light shielding member being positioned to prevent generation of stray light reflected inside the image pickup window and entering the image pickup device and stray light reflected on the surface of the filter and entering the image pickup device, the stray light being generated due to the illumination light.
3 more elements
Dependencies are inferred from the claim text.