IMAGE READING APPARATUS, IMAGE FORMING APPARATUS, AND METHOD OF MANUFACTURING IMAGE READING APPARATUS

• Main Author: OTAKE JUN
• Format: Patent
• Language: English; Japanese
• Published: 05.09.2019
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CINEMATOGRAPHY; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; ELECTROGRAPHY; HOLOGRAPHY; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

To provide an image reading apparatus in which a position of a light guide member can be easily adjusted, and an image forming apparatus including the same.SOLUTION: The image reading apparatus includes: an LED substrate 60 on which a plurality of LEDs is arranged in a longitudinal direction; a light guide 70, having contact surfaces 71a, 71b, for guiding light emitted from the plurality of LEDs; a CCD that photoelectrically converts reflected light of a sheet that receives light emitted from the light guide 70 to read image information; and a base portion 80 having slopes 86a, 86b, arranged in different positions in the longitudinal direction, for supporting the contact surfaces 71a, 71b of the light guide 70, respectively. At least one of the contact surfaces 71a, 71b of the light guide 70 is a curved surface, and at least one of the slopes 86a, 86b is a curved surface.SELECTED DRAWING: Figure 10 【課題】導光部材の位置調整が容易な画像読取装置及びこれを備えた画像形成装置を提供する。【解決手段】複数のＬＥＤが長手方向に配置されたＬＥＤ基板６０と、当接面７１ａ，７１ｂを有し、複数のＬＥＤから出射された光を案内するライトガイド７０と、ライトガイド７０から出射された光を受けたシートの反射光を光電変換して画像情報を読み取るＣＣＤと、長手方向において互いに異なる位置に配置され、ライトガイド７０の当接面７１ａ，７１ｂをそれぞれ支持する斜面８６ａ，８６ｂを有するベース部８０と、を備える。ライトガイド７０の当接面７１ａ，７１ｂの少なくとも一方は曲面であり、斜面８６ａ，８６ｂの少なくとも一方は曲面である。【選択図】図１０