JPS58178131U - image projection device - Google Patents

image projection device

Info

Publication number
JPS58178131U
JPS58178131U JP2395283U JP2395283U JPS58178131U JP S58178131 U JPS58178131 U JP S58178131U JP 2395283 U JP2395283 U JP 2395283U JP 2395283 U JP2395283 U JP 2395283U JP S58178131 U JPS58178131 U JP S58178131U
Authority
JP
Japan
Prior art keywords
magnification
projection device
lamp
image projection
lenses
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
JP2395283U
Other languages
Japanese (ja)
Inventor
曽根　義陽
沢田　隆昌
正喜 中岡
Original Assignee
キヤノン株式会社
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 キヤノン株式会社 filed Critical キヤノン株式会社
Priority to JP2395283U priority Critical patent/JPS58178131U/en
Publication of JPS58178131U publication Critical patent/JPS58178131U/en
Pending legal-status Critical Current

Links

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) [Summary] 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図は本考案を適用したリーダープリンター・を示す
図、第２図は照明手段の要部拡大図。 ３・曲・ランプ，４・・曲コンデンサレンズ、５？５・
・・・・・反射鏡、５？・・・・・・凹面鏡。Fig. 1 is a diagram showing a reader/printer to which the present invention is applied, and Fig. 2 is an enlarged view of the main parts of the illumination means. 3. Song lamp, 4. Song condenser lens, 5? 5.
...Reflector, 5? ······concave mirror.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 焦点距離が異なる複数個のレンズの讐っを選択的に使用
することにより原郷の投影倍率を変更するようにした投
影装置において、′原稿を照明するランプと、該ランプ
の背後に配置した凹面反射鏡とを有し゜、該ランプは選
択したレンズの倍率に対応した位置に移動可能であり、
該反射鏡は倍率の変更＆＝拘らず、複数個のレンズのう
ち最高倍率のレンズを使用する場合に最も照明効率がよ
くなる二定位置に配置されることを特徴とする画像投影
装置。In a projection device that changes the original projection magnification by selectively using a plurality of lenses with different focal lengths, there is a lamp that illuminates the original, and a concave reflector placed behind the lamp. a mirror; the lamp is movable to a position corresponding to the magnification of the selected lens;
An image projection device characterized in that the reflecting mirror is arranged at two fixed positions where the illumination efficiency is highest when using the lens with the highest magnification among the plurality of lenses, regardless of the change in magnification.
JP2395283U 1983-02-21 1983-02-21 image projection device Pending JPS58178131U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2395283U JPS58178131U (en) 1983-02-21 1983-02-21 image projection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2395283U JPS58178131U (en) 1983-02-21 1983-02-21 image projection device

Publications (1)

Publication Number Publication Date
JPS58178131U true JPS58178131U (en) 1983-11-29

Family

ID=30035964

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2395283U Pending JPS58178131U (en) 1983-02-21 1983-02-21 image projection device

Country Status (1)

Country Link
JP (1) JPS58178131U (en)

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