JPS6133048U - Image density detection device - Google Patents

Image density detection device

Info

Publication number
JPS6133048U
JPS6133048U JP11485184U JP11485184U JPS6133048U JP S6133048 U JPS6133048 U JP S6133048U JP 11485184 U JP11485184 U JP 11485184U JP 11485184 U JP11485184 U JP 11485184U JP S6133048 U JPS6133048 U JP S6133048U
Authority
JP
Japan
Prior art keywords
detection device
image density
optical fiber
aperture
density detection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11485184U
Other languages
Japanese (ja)
Inventor
稔 青木
Original Assignee
株式会社リコー
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社リコー filed Critical 株式会社リコー
Priority to JP11485184U priority Critical patent/JPS6133048U/en
Publication of JPS6133048U publication Critical patent/JPS6133048U/en
Pending legal-status Critical Current

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  • Light Guides In General And Applications Therefor (AREA)
  • Control Of Exposure In Printing And Copying (AREA)

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案に係る画像濃度検出装置を画像読取装置
に付設した場合の実施例を示す側断面図、第２図は第１
図の部分Ｈの拡大図である。 ７ａ・・・光入射口（第一開口）、７ｂ・・・光出射口
（第二開口）、７・・・光ファイバ、８・・・光電変換
手段、１２・・・光遮蔽部材（光遮蔽物）。FIG. 1 is a side sectional view showing an embodiment in which an image density detection device according to the present invention is attached to an image reading device, and FIG.
FIG. 3 is an enlarged view of part H of the figure. 7a... Light entrance opening (first opening), 7b... Light exit opening (second opening), 7... Optical fiber, 8... Photoelectric conversion means, 12... Light shielding member (light shield).

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 画像からの反射光を第一開口で受けて第二開口から出射
する光ファイバと、その光ファイバの第二開口に対向し
て配置され上記の出射された光を光電変換して電気信号
を出力する光電変換手段とを具備し、その先電変換手段
の出力によって画像濃度を判定する画像濃度検出装置に
おいて、光ファイバの第一開口に筒状の光遮蔽物を設け
たことを特徴とする画像濃度検出装置。An optical fiber that receives reflected light from an image at a first aperture and emits it from a second aperture, and is placed opposite the second aperture of the optical fiber to photoelectrically convert the emitted light and output an electrical signal. An image density detection device comprising a photoelectric conversion means and determining image density based on the output of the first electric conversion means, characterized in that a cylindrical light shield is provided at the first opening of the optical fiber. Concentration detection device.
JP11485184U 1984-07-30 1984-07-30 Image density detection device Pending JPS6133048U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11485184U JPS6133048U (en) 1984-07-30 1984-07-30 Image density detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11485184U JPS6133048U (en) 1984-07-30 1984-07-30 Image density detection device

Publications (1)

Publication Number Publication Date
JPS6133048U true JPS6133048U (en) 1986-02-28

Family

ID=30673848

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11485184U Pending JPS6133048U (en) 1984-07-30 1984-07-30 Image density detection device

Country Status (1)

Country Link
JP (1) JPS6133048U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63142377A (en) * 1986-12-05 1988-06-14 Ricoh Co Ltd Automatic density adjusting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63142377A (en) * 1986-12-05 1988-06-14 Ricoh Co Ltd Automatic density adjusting device

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