JPS60107936U - Reflective overhead projector - Google Patents

Reflective overhead projector

Info

Publication number
JPS60107936U
JPS60107936U JP20430183U JP20430183U JPS60107936U JP S60107936 U JPS60107936 U JP S60107936U JP 20430183 U JP20430183 U JP 20430183U JP 20430183 U JP20430183 U JP 20430183U JP S60107936 U JPS60107936 U JP S60107936U
Authority
JP
Japan
Prior art keywords
overhead projector
reflective overhead
reflective
box
projection 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
JP20430183U
Other languages
Japanese (ja)
Inventor
東畑　晋
沼田　邦雄
Original Assignee
株式会社学習研究社
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 株式会社学習研究社 filed Critical 株式会社学習研究社
Priority to JP20430183U priority Critical patent/JPS60107936U/en
Priority to US06/684,043 priority patent/US4636050A/en
Priority to DE3446822A priority patent/DE3446822C2/en
Priority to GB08432637A priority patent/GB2152233B/en
Publication of JPS60107936U publication Critical patent/JPS60107936U/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 drawings]

第１図は本考案に係る反射型オーバーヘッドプロジェク
タ−の内部構造を示す断面図、第２図乃至第５図は別実
流側を示す第１図と同様の断面図である。 尚、図面中１は反射型オーバーヘッドプロジェクタ−１
２はボックス、３はヘッド部、４は光源、５は投影レン
ズ、７はフレネル反射板、８゜９．１２は反射鏡、１０
はスライド装置、１１は投光用ランプである。FIG. 1 is a cross-sectional view showing the internal structure of a reflective overhead projector according to the present invention, and FIGS. 2 to 5 are cross-sectional views similar to FIG. 1 showing a separate actual flow side. In addition, 1 in the drawing is a reflection type overhead projector-1
2 is a box, 3 is a head, 4 is a light source, 5 is a projection lens, 7 is a Fresnel reflector, 8°9.12 is a reflector, 10
1 is a slide device, and 11 is a projection lamp.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 光源と投影レンズをボックスの一部に取付けるとともに
、このボックス内に資料載置用のフレネル反射板からの
反射光を前記投影レンズに入光せしめるための反射鏡を
配設したことを特徴とする反射型オーバーヘッドプロジ
ェクタ−０A light source and a projection lens are attached to a part of the box, and a reflecting mirror is disposed within the box to allow the reflected light from a Fresnel reflector for placing materials to enter the projection lens. Reflective overhead projector-0
JP20430183U 1983-12-26 1983-12-26 Reflective overhead projector Pending JPS60107936U (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP20430183U JPS60107936U (en) 1983-12-26 1983-12-26 Reflective overhead projector
US06/684,043 US4636050A (en) 1983-12-26 1984-12-20 Reflection type overhead projector
DE3446822A DE3446822C2 (en) 1983-12-26 1984-12-21 Reflection overhead projector
GB08432637A GB2152233B (en) 1983-12-26 1984-12-27 Projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20430183U JPS60107936U (en) 1983-12-26 1983-12-26 Reflective overhead projector

Publications (1)

Publication Number Publication Date
JPS60107936U true JPS60107936U (en) 1985-07-23

Family

ID=30766704

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20430183U Pending JPS60107936U (en) 1983-12-26 1983-12-26 Reflective overhead projector

Country Status (1)

Country Link
JP (1) JPS60107936U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04155323A (en) * 1990-10-18 1992-05-28 Elmo Co Ltd Reflection type overhead projector

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5050923A (en) * 1973-09-04 1975-05-07
JPS5915924A (en) * 1982-07-20 1984-01-27 Ricoh Co Ltd Original placing table for reflection type overhead projector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5050923A (en) * 1973-09-04 1975-05-07
JPS5915924A (en) * 1982-07-20 1984-01-27 Ricoh Co Ltd Original placing table for reflection type overhead projector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04155323A (en) * 1990-10-18 1992-05-28 Elmo Co Ltd Reflection type overhead projector

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