IMAGE SENSOR

• Main Authors: SHIRAKI TORU, OHAMA DAISUKE, WAKISAKA MASAMI
• Format: Patent
• Language: English; Japanese
• Published: 16.02.2017
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

PROBLEM TO BE SOLVED: To provide an image sensor that causes light other than light focused by a lens body not to be applied to a photoreceptor and prevents intrusion of foreign matters into the photoreceptor.SOLUTION: An image sensor includes a light guide body which extends in a main scanning direction and emits light to a reading target object, a lens body for converging reflection light reflected from the reading target object, a photoreceptor for receiving the reflection light converged by the lens body, and a housing which houses or holds the light guide body, the lens body and the photoreceptor and is formed by bending a sheet metal. The housing includes a bottom portion which has a slit portion which extends in the main scanning direction and through which the reflection light passing through the lens body passes, and a pair of lens body fixing portions which are inclined at a predetermined angle from both end portions of the slit portion in an auxiliary scanning direction and bent inwardly, and extend in the main scanning direction. The side surface of the lens body inserted between the pair of lens body fixing portions and the lens body fixing portion are fixed to each other by a light shielding body.SELECTED DRAWING: Figure 5 【課題】 レンズ体で集光された光以外の光を受光体に照射させず、受光体への異物進入を防止する。【解決手段】 主走査方向に延在し、読取対象物に光を出射する導光体と、前記読取対象物で反射した反射光を収束するレンズ体と、前記レンズ体で収束された前記反射光を受光する受光体と、前記導光体、前記レンズ体、及び前記受光体を収納又は保持し、板金の折り曲げ加工で形成された筐体と、を備え、前記筐体は、主走査方向に延在し、前記レンズ体を通過した前記反射光が通過するスリット部が形成された底部と、前記スリット部の副走査方向の両端部から所定の角度で傾斜して内側に折り曲げられ主走査方向に延在する一対のレンズ体固定部を備え、一対の前記レンズ体固定部の間に挿入された前記レンズ体の側面と前記レンズ体固定部とを遮光体で固定した。【選択図】 図５