JPS61143368U

JPS61143368U -

Info

Publication number: JPS61143368U
Application number: JP2657785U
Authority: JP
Priority date: 1985-02-26
Filing date: 1985-02-26
Publication date: 1986-09-04

Description

[Brief explanation of drawings]

第１図はこの考案に係る画像入力装置の構成を
示す概略断面図、第２図はこの考案に係る反射手
段を示す概略断面図、第３図は光軸上及びこれか
ら外れた領域での光量分布を示すグラフ、第４図
は従来型画像入力装置における遮光板を示す概略
斜視図である。１……原稿、２……線状光源、３……反射手段
、４……光学系、５……一次元光電変換素子、７
……スリツト孔、９……取付台、１０……通過溝
、１１……背面反射板、１２……正面反射板、１
３……係合突起、１４……案内溝。 Figure 1 is a schematic cross-sectional view showing the configuration of an image input device according to this invention, Figure 2 is a schematic cross-sectional view showing a reflecting means according to this invention, and Figure 3 is the amount of light on the optical axis and in areas off from it. A graph showing the distribution, FIG. 4 is a schematic perspective view showing a light shielding plate in a conventional image input device. DESCRIPTION OF SYMBOLS 1... Original document, 2... Linear light source, 3... Reflection means, 4... Optical system, 5... One-dimensional photoelectric conversion element, 7
... Slit hole, 9 ... Mounting base, 10 ... Passage groove, 11 ... Rear reflector, 12 ... Front reflector, 1
3... Engaging protrusion, 14... Guide groove.

Claims

[Claims for Utility Model Registration] 1. In an image input device that illuminates an original with a linear light source and reads the content of the original by making reflected light from the surface of the original enter a one-dimensional photoelectric conversion element, An image input device characterized in that reflection means are arranged at both ends of a light source. 2. The image input device according to claim 1, wherein the reflecting means is movably disposed along the longitudinal direction of the linear light source.