Patent ID: 9277072
Filing Date: 2016-03-01
CPC Classification: G02B,H04N

Claim Text:
1. An original reading apparatus comprising: an illumination unit configured to illuminate an original; and a base member having a first portion and plural second portions; a photoelectric conversion element configured to convert reflected light from the original illuminated by the illumination unit into an electrical signal, wherein the illumination unit includes: a plurality of light-emitting elements; and a light guide having a first boss portion and plural second boss portions, configured to guide light emitted from the plurality of light-emitting elements toward the original; wherein the first boss portion is engaged to the first portion, and the first boss portion arranged in a central area of the light guide in a longitudinal direction is supported by the first portion in both the longitudinal direction and a lateral direction of the light guide; and wherein the second boss portions are engaged to the second portions, and the second boss portions arranged on end areas of the light guide in the longitudinal direction are free in the longitudinal direction of the light guide and are supported by the second portions in the lateral direction of the light guide.