JPH0389432U - - Google Patents

Info

Publication number
JPH0389432U
JPH0389432U JP15006789U JP15006789U JPH0389432U JP H0389432 U JPH0389432 U JP H0389432U JP 15006789 U JP15006789 U JP 15006789U JP 15006789 U JP15006789 U JP 15006789U JP H0389432 U JPH0389432 U JP H0389432U
Authority
JP
Japan
Prior art keywords
light source
fresnel lens
condensing fresnel
optical axis
lens
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
JP15006789U
Other languages
English (en)
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 filed Critical
Priority to JP15006789U priority Critical patent/JPH0389432U/ja
Publication of JPH0389432U publication Critical patent/JPH0389432U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)

Description

【図面の簡単な説明】
第１図はこの考案の実施例によるオーバーヘツ
ド・プロジエクタの構成図、第２図は従来のオー
バーヘツド・プロジエクタの構成図である。 １……光源、２……透過型集光フレネルレンズ
、３……投影レンズ、４……反射鏡、５……ステ
ージガラス、７……集光ステージ板。

Claims (1)

    【実用新案登録請求の範囲】
  1. 光源と、この光源の光を集光する透過型集光フ
    レネルレンズと、この集光フレネルレンズを通つ
    た光源の光軸上に配置され、前記光源と共役の位
    置関係にある投影レンズと、この投影レンズを通
    つた光軸をスクリーン方向へ直角に曲げる反射鏡
    と、前記透過型集光フレネルレンズとの間に隙間
    を設けないで、同フレネルレンズに一体に取り付
    けたステージガラスとよりなるオーバーヘツド・
    プロジエクタ。
JP15006789U 1989-12-28 1989-12-28 Pending JPH0389432U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15006789U JPH0389432U (ja) 1989-12-28 1989-12-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15006789U JPH0389432U (ja) 1989-12-28 1989-12-28

Publications (1)

Publication Number Publication Date
JPH0389432U true JPH0389432U (ja) 1991-09-12

Family

ID=31696435

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15006789U Pending JPH0389432U (ja) 1989-12-28 1989-12-28

Country Status (1)

Country Link
JP (1) JPH0389432U (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59201031A (ja) * 1983-04-30 1984-11-14 Fuji Xerox Co Ltd オ−バ−ヘツドプロジエクタ

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59201031A (ja) * 1983-04-30 1984-11-14 Fuji Xerox Co Ltd オ−バ−ヘツドプロジエクタ

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