Image reading apparatus
AssigneeCanon Kabushiki Kaisha
InventorTadao Hayashide
Life of this patent
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Abstract
Provided is an image reading apparatus that can read an image with highly accurate and stable density and color while illuminating the image with a color sequential projector thereof. The image reading apparatus according to the present invention includes: an image pickup unit configured to image an original that is mounted on a mounting surface; a projecting unit configured to project an image on the mounting surface by sequentially switching and emitting light of a plurality of colors; and a control unit configured to control the projecting unit so as to project a first black image, a first color image, and a second black image in this order during the imaging by the image pickup unit.
Claims20
1-19. (canceled)
An image reading apparatus, comprising:
- an image pickup unit configured to image an original that is mounted on a mounting surface;
- a projecting unit configured to project an image on the mounting surface by sequentially switching and emitting light of a plurality of colors;
- and
- a control unit configured to control the projecting unit so as to project a first black image, a first color image, and a second black image in this order during the imaging by the image pickup unit.
Dependencies are inferred from the claim text.