JPS6014564U

JPS6014564U - optical reader

Info

Publication number: JPS6014564U
Application number: JP10694683U
Authority: JP
Inventors: 松川　義之; 森久保　光一
Original assignee: 日本無線株式会社
Priority date: 1983-07-09
Filing date: 1983-07-09
Publication date: 1985-01-31

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図、第２図は従来の光学読取り装置を示す要部断面
図及び光伝導具を示す斜視図、第３図Ａ及びＢは従来の
光伝導具を用いてシエーデング補正をしない場合及びシ
エーデング補正をした場合の光電変換センサの出力電圧
特性図、第４図Ａ及びＢは本考案による光学読取り装置
の光伝導具を示す斜視図及び要部正面図である。１・・・螢光灯光源、２・・・送信原稿、３・・・走査
読取り点、４・・・光軸、５・・・レンズ、６・・・光
電変換センサ、７・・・ローラ一対、１５．１５’・・
・光伝導具、１６・・・入光面、１７・・・光伝導路、
１８・・・照射面、２２・・・照射光、２３・・・光伝
導具の上面、２４・・・光伝導具の下面、２５・・・黒
色の塗装、２６・・・小ネジ。Figures 1 and 2 are a sectional view of a main part of a conventional optical reading device and a perspective view of a photoconductor, and Figures 3A and B are a case where a conventional photoconductor is used without shading correction and a case where shading correction is not performed. FIGS. 4A and 4B are a diagram showing the output voltage characteristics of the photoelectric conversion sensor after correction, and are a perspective view and a front view of the main parts of the photoconductor of the optical reading device according to the present invention. DESCRIPTION OF SYMBOLS 1... Fluorescent light source, 2... Transmission document, 3... Scanning reading point, 4... Optical axis, 5... Lens, 6... Photoelectric conversion sensor, 7... Roller A pair, 15.15'...
・Photoconductor, 16...Light entrance surface, 17...Photoconductor path,
18... Irradiation surface, 22... Irradiation light, 23... Upper surface of photoconductor, 24... Lower surface of photoconductor, 25... Black coating, 26... Machine screw.

Claims

[Scope of utility model registration request]

A methacrylic material having a light incident surface facing the release surface of the fluorescent lamp light source and an irradiation surface opposite to the light incident surface between the fluorescent light source and the vicinity of the scanning reading point of the document information on feed 14. A resin photoconductor is provided, and the light from the fluorescent light source incident from the light input surface is irradiated onto the scanning reading point from the irradiation surface, thereby photoelectrically converting the transmitted document information through the lens. In an optical reading device configured to optically read data using a sensor, the transmission document guide plate attached to the top surface of the photoconductor is arranged in a dense manner in the center of the transmission document reading width direction, and in a sparse manner as it approaches both ends. 1. An optical reading device characterized in that a plurality of machine screws are screwed together with a pitch dimension of 1, and the threaded portions of these machine screws protrude into the light conduction path of the light conduction device.