CONTACT-TYPE IMAGE SENSOR AND MANUFACTURING METHOD THEREOF

• Main Authors: SHIRAKI TORU, OHAMA DAISUKE, WAKISAKA MASAMI
• Format: Patent
• Language: English; Japanese
• Published: 09.02.2017
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

PROBLEM TO BE SOLVED: To provide a contact-type image sensor having a structure capable of reducing a positional variation of an optical system of a light source and a lens caused by a dimensional variation of a reference component.SOLUTION: A contact-type image sensor comprises: a light guide body 5 which is provided to extend in a main scanning direction that is a reading width direction of a document 1, and irradiates a reading surface of the document 1 with a light; a light guide body 6 which is provided in parallel with the light guide body 5 and irradiates the document 1 with a light; a lens body 9 for receiving and converging on an incident surface a reflection light resulting from reflecting the lights radiated by the light guide body 5 and the light guide body 6 on the reading surface of the document 1; and a sensor 10 including a light-receiving surface for receiving the reflection light converged by the lens body 9. The lens body 9 is disposed between the light guide body 5 and the light guide body 6, and opposing side faces thereof are in contact with the light guide body 5 and the light guide body 6.SELECTED DRAWING: Figure 5 【課題】基準とする部品の寸法ばらつきに起因する光源及びレンズの光学系の位置ばらつきを低減できる構造を有する密着型イメージセンサを提供する。【解決手段】本発明に係る密着型イメージセンサにおいては、原稿１の読取幅方向である主走査方向に延在するように設けられ、原稿１の読取面に光を照射する導光体５と、導光体５と並行して設けられ、原稿１に光を照射する導光体６と、導光体５及び導光体６により照射された光が原稿１の読取面にて反射した反射光を入射面にて受光し集光するレンズ体９と、レンズ体９で集光された反射光を受光する受光面を有するセンサ１０とを備え、レンズ体９は、導光体５と導光体６との間に配置されると共に、対向する側面がそれぞれ導光体５及び導光体６に接する。【選択図】 図５