JPH0448765U

JPH0448765U -

Info

Publication number: JPH0448765U
Application number: JP1990089465U
Authority: JP
Priority date: 1990-08-29
Filing date: 1990-08-29
Publication date: 1992-04-24

Description

[Brief explanation of the drawing]

第１図は本考案の端面密着型イメージセンサの
第１実施例を示す図で同端面密着型イメージセン
サの縦断面図、第２図は同第２実施例の縦断面図
、第３図は前記第２図の３−３線断面図、第４，
５図は従来の密着型イメージセンサの説明図であ
る。Ｐ……原稿、Ｌｉ……照明光、Ｌｏ……反射光
、１……透光性基板、１ｂ……照明光出射面、２
……光源、４……反射層、６……光電変換部、１
６……ロツドレンズアレー、１７……光路変向手
段としてのプリズム。 FIG. 1 is a diagram showing a first embodiment of the edge-contact image sensor of the present invention, and is a vertical sectional view of the same edge-contact image sensor, FIG. 2 is a longitudinal sectional view of the second embodiment, and FIG. A sectional view taken along the line 3-3 in FIG. 2, No. 4,
FIG. 5 is an explanatory diagram of a conventional contact type image sensor. P... Original, Li... Illumination light, Lo... Reflected light, 1... Transparent substrate, 1b... Illumination light exit surface, 2
...Light source, 4...Reflection layer, 6...Photoelectric conversion section, 1
6... Rod lens array, 17... Prism as optical path changing means.

Claims

[Scope of Claim for Utility Model Registration] (1) A translucent substrate 1 arranged in such a manner that the document contacting portion provided at the tip is in contact with a document for reading.
a light source 2 that is supported by the transparent substrate 1 and enters illumination light Li into the transparent substrate 1;
An illumination light emitting surface 1b that emits the illumination light Li from inside in a predetermined direction, and a transparent substrate 1 that emits the reflected light Lo from the document P of the illumination light Li emitted in the predetermined direction.
Optical system A that focuses on the photoelectric conversion unit 6 supported by
The optical system A includes a rod lens array whose side surface is fixed to the front end of the transparent substrate 1. . (2) The rod lens array is arranged such that a portion near its near point within its depth of focus coincides with a reading position of the document when the document contacting section is in contact with the document. The edge contact type image sensor according to claim 1.