JPS63136462U

JPS63136462U -

Info

Publication number: JPS63136462U
Application number: JP2817587U
Authority: JP
Priority date: 1987-02-27
Filing date: 1987-02-27
Publication date: 1988-09-07

Description

[Brief explanation of the drawing]

図面第１図は本考案よりなる画像読取り装置の
実施例１の構成概要を示した図、第２図は同実施
例におけいて用いられる画像処理機能部分のブロ
ツクを示した図、第３図は実施例２の構成概要を
示した図、第４図は実施例３の構成概要を示した
図、第５図は実施例４の構成概要を示した図であ
る。第６図は従来装置の構成概要を示した図、第
７図は画像読取りの走査例を説明するための図、
第８図は白基準板の配置例を示した図、第９図は
シエーデイング波形を説明するための図である。１：原稿台ガラス、２，２′：（第一の）白基
準板、３：イメージセンサユニツト、４：等倍型
のイメージセンサ、５：収束性光伝送体、６：光
源、７：（原稿）自動給送機構、８：読取ガラス
、９：読取ローラ、１０ａ，１０ｂ：ピンチロー
ラ、１１：原稿挿入口、１２：排出口、１３：第
二の白基準板、２０：（固定）原稿、２１：（移
動）原稿。 FIG. 1 is a diagram showing an outline of the configuration of a first embodiment of an image reading device according to the present invention, FIG. 2 is a diagram showing blocks of an image processing function part used in the same embodiment, and FIG. 4 is a diagram showing an outline of the configuration of the second embodiment, FIG. 4 is a diagram showing the outline of the configuration of the third embodiment, and FIG. 5 is a diagram showing the outline of the configuration of the fourth embodiment. FIG. 6 is a diagram showing an outline of the configuration of a conventional device, and FIG. 7 is a diagram for explaining a scanning example of image reading.
FIG. 8 is a diagram showing an example of the arrangement of the white reference plate, and FIG. 9 is a diagram for explaining a shading waveform. 1: Original table glass, 2, 2': (first) white reference plate, 3: Image sensor unit, 4: Same-magnification image sensor, 5: Convergent light transmitter, 6: Light source, 7: ( Original) automatic feeding mechanism, 8: reading glass, 9: reading rollers, 10a, 10b: pinch rollers, 11: original insertion slot, 12: ejection opening, 13: second white reference plate, 20: (fixed) original , 21: (Move) manuscript.

Claims

[Scope of utility model registration request]

a document table glass that provides a document placement surface for reading the document in a fixed state; a movable document reading position provided near one end of the document table glass;
In an image reading apparatus comprising an original moving and feeding mechanism that feeds an original to the moving original reading position, and an optical reading system that moves oppositely across the original table glass and the moving original reading position to read the original. . An image reading apparatus, characterized in that a white reference plate used for reading a shading waveform performed by the optical reading system is disposed at least near the moving original reading position.