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. |