发明名称 IMAGE READING APPARATUS
摘要 An image reading apparatus including: an illumination device configured to illuminate an original; and a solid-state image sensor configured to receive and convert a reflected light from the original into an image signal, wherein the illumination device includes: a plurality of light emitting elements; and a light guide configured to guide light emitted from the light emitting elements toward the original, wherein the light guide includes: a deflection surface configured to deflect the light emitted from the light emitting elements to direct the light toward the original; and an emission surface configured to emit the light deflected by the deflection surface toward the original, wherein the deflection surface has a plurality of first curved optical surfaces provided side by side in a longitudinal direction of the light guide, and wherein the emission surface has a plurality of second curved optical surfaces provided side by side in the longitudinal direction.
申请公布号 US2016269582(A1) 申请公布日期 2016.09.15
申请号 US201615058982 申请日期 2016.03.02
申请人 CANON KABUSHIKI KAISHA 发明人 Takahashi Toshio
分类号 H04N1/028 主分类号 H04N1/028
代理机构 代理人
主权项 1. An image reading apparatus configured to read an image of an original, the image reading apparatus comprising: an illumination device configured to illuminate the original; and a solid-state image sensor configured to receive a reflected light from the original and convert the reflected light into an image signal, wherein the illumination device includes: a plurality of light emitting elements; anda light guide configured to guide light emitted from the plurality of light emitting elements toward the original, wherein the light guide includes: a deflection surface configured to deflect the light emitted from the plurality of light emitting elements to direct the light toward the original; andan emission surface configured to emit the light deflected by the deflection surface toward the original, wherein the deflection surface has a plurality of first curved optical surfaces provided side by side in a longitudinal direction of the light guide, and wherein the emission surface has a plurality of second curved optical surfaces provided side by side in the longitudinal direction of the light guide.
地址 Tokyo JP