JPS606134U - Light amount control device for reader or reader printer - Google Patents

Light amount control device for reader or reader printer

Info

Publication number
JPS606134U
JPS606134U JP9764883U JP9764883U JPS606134U JP S606134 U JPS606134 U JP S606134U JP 9764883 U JP9764883 U JP 9764883U JP 9764883 U JP9764883 U JP 9764883U JP S606134 U JPS606134 U JP S606134U
Authority
JP
Japan
Prior art keywords
reader
control device
changing
lens
magnification
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
JP9764883U
Other languages
Japanese (ja)
Inventor
村崎　貞信
Original Assignee
ミノルタ株式会社
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 ミノルタ株式会社 filed Critical ミノルタ株式会社
Priority to JP9764883U priority Critical patent/JPS606134U/en
Publication of JPS606134U publication Critical patent/JPS606134U/en
Pending legal-status Critical Current

Links

Landscapes

  • Projection-Type Copiers In General (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
  • Exposure Or Original Feeding In Electrophotography (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 drawings]

第１図は投影面上での光量分布を示すグラフ、第２図は
本考案に係る光量制御装置を備えたリーダープリンタの
内部機構図、第３図は光量制御のためのブロック図、第
４図は投影レンズとその保持部分の斜視図、第５図は投
影レンズの断面図、第６図は他の実施例に使用される投
影レンズの断面図である。 １・・・・・・マイクロフィルム、４・・・・・・光源
、５・・・・・・コンデンサレンズ、６・・・・・・反
射鏡、８・・・・・・ズーム投影レンズ、３０・・・・
・・レンズホルダ、３４ａ〜３４ｄ・・・・・・フォー
トセンサ、８１・・・・・・フォーカス用レンズ群、８
２・・・・・・ズーム用レンズ群、８３・・・・・・外
筒、８６・・・・・・ズームリング、８７・・・・・・
指標、８８・・・・・・ズーム用レンズ保持体。Fig. 1 is a graph showing the light quantity distribution on the projection plane, Fig. 2 is an internal mechanism diagram of a reader printer equipped with the light quantity control device according to the present invention, Fig. 3 is a block diagram for controlling the light quantity, and Fig. 4 is a graph showing the light quantity distribution on the projection plane. 5 is a sectional view of the projection lens, and FIG. 6 is a sectional view of the projection lens used in another embodiment. 1...Micro film, 4...Light source, 5...Condenser lens, 6...Reflector, 8...Zoom projection lens, 30...
... Lens holder, 34a to 34d ... Fort sensor, 81 ... Focusing lens group, 8
2...Zoom lens group, 83...Outer barrel, 86...Zoom ring, 87...
Index, 88...Zoom lens holder.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 二組のレンズ群の相対位置を変更することによって連続
的に倍率変更可能な投影レンズと、該投影レンズに設け
られ前記相対位置の変更によって倍率を示す指標部材と
、前記投影レンズを保持する部材に設けられ前記指標部
材を検知する検知手段と、光源、反射鏡、コンデンサレ
ンズ及び光源とコンデンサレンズの相対位置を変更する
駆動手段を含む照明装置と、前記検知手段からの倍率信
号に基づき、前記駆動手段を制御する制御手段とを備え
、倍率変更に応じて光量分布を自動的に制御することを
特徴とするリーダー又はリーダープリンタの量制御装置
。a projection lens whose magnification can be continuously changed by changing the relative positions of two sets of lens groups; an index member provided on the projection lens to indicate the magnification by changing the relative positions; and a member that holds the projection lens. an illumination device including a light source, a reflecting mirror, a condenser lens, and a driving means for changing the relative position of the light source and the condenser lens; 1. A quantity control device for a reader or reader printer, comprising a control means for controlling a driving means, and automatically controlling a light quantity distribution according to a change in magnification.
JP9764883U 1983-06-23 1983-06-23 Light amount control device for reader or reader printer Pending JPS606134U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9764883U JPS606134U (en) 1983-06-23 1983-06-23 Light amount control device for reader or reader printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9764883U JPS606134U (en) 1983-06-23 1983-06-23 Light amount control device for reader or reader printer

Publications (1)

Publication Number Publication Date
JPS606134U true JPS606134U (en) 1985-01-17

Family

ID=30232179

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9764883U Pending JPS606134U (en) 1983-06-23 1983-06-23 Light amount control device for reader or reader printer

Country Status (1)

Country Link
JP (1) JPS606134U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4330476B4 (en) * 1992-09-09 2007-02-08 Denso Corp., Kariya Optical radar device for a motor vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53146616A (en) * 1977-05-26 1978-12-20 Rin Eisha Kk Exposure control system for separating camera
JPS56114963A (en) * 1980-02-18 1981-09-09 Toshiba Corp Exposure control mechanism in copying machine
JPS5814164A (en) * 1981-07-16 1983-01-26 Fuji Xerox Co Ltd Regulating device for exposure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53146616A (en) * 1977-05-26 1978-12-20 Rin Eisha Kk Exposure control system for separating camera
JPS56114963A (en) * 1980-02-18 1981-09-09 Toshiba Corp Exposure control mechanism in copying machine
JPS5814164A (en) * 1981-07-16 1983-01-26 Fuji Xerox Co Ltd Regulating device for exposure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4330476B4 (en) * 1992-09-09 2007-02-08 Denso Corp., Kariya Optical radar device for a motor vehicle

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