JPS60173940U - Fresnel exchange device for overhead projector - Google Patents

Fresnel exchange device for overhead projector

Info

Publication number
JPS60173940U
JPS60173940U JP6240584U JP6240584U JPS60173940U JP S60173940 U JPS60173940 U JP S60173940U JP 6240584 U JP6240584 U JP 6240584U JP 6240584 U JP6240584 U JP 6240584U JP S60173940 U JPS60173940 U JP S60173940U
Authority
JP
Japan
Prior art keywords
fresnel
fresnel lens
overhead projector
exchange device
projector
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
JP6240584U
Other languages
Japanese (ja)
Inventor
垣内　徳三郎
高田　芳允
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 JP6240584U priority Critical patent/JPS60173940U/en
Publication of JPS60173940U publication Critical patent/JPS60173940U/en
Pending legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (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) [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図は本考案を適用可能なオーバーヘッドプロジェク
タ−の例を示す側面図、第２図は本考案の実施例を示す
分解斜面図である。 １・・曲プロジェクタ一本体、２・曲・フレネルレンズ
。FIG. 1 is a side view showing an example of an overhead projector to which the present invention can be applied, and FIG. 2 is an exploded perspective view showing an embodiment of the present invention. 1. Song projector body, 2. Song Fresnel lens.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] プロジェクタ一本体にフレネルレンズを設置してこのフ
レネルレンズ上に投影用原稿を載置するようにし、上記
フレネルレンズの上方に、上記投影用原稿を照明する照
明光源と上記投影用原稿の像をスクリーン上に結像させ
るための投影レンズとを配置してなる反射型のオーバー
ヘッドプロジェクタ−において、上記フレネルレンズは
、その縁部がプロジェクタ一本体に対し剥離可能に接着
されてなるフレネル交換装置。A Fresnel lens is installed in the main body of the projector, a projection document is placed on the Fresnel lens, and an illumination light source for illuminating the projection document and an image of the projection document are placed above the Fresnel lens on a screen. A reflection type overhead projector having a projection lens for forming an image thereon, wherein the Fresnel lens has an edge portion removably adhered to a projector body.
JP6240584U 1984-04-27 1984-04-27 Fresnel exchange device for overhead projector Pending JPS60173940U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6240584U JPS60173940U (en) 1984-04-27 1984-04-27 Fresnel exchange device for overhead projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6240584U JPS60173940U (en) 1984-04-27 1984-04-27 Fresnel exchange device for overhead projector

Publications (1)

Publication Number Publication Date
JPS60173940U true JPS60173940U (en) 1985-11-18

Family

ID=30591591

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6240584U Pending JPS60173940U (en) 1984-04-27 1984-04-27 Fresnel exchange device for overhead projector

Country Status (1)

Country Link
JP (1) JPS60173940U (en)

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