JPH01117633U - - Google Patents

Info

Publication number
JPH01117633U
JPH01117633U JP1397088U JP1397088U JPH01117633U JP H01117633 U JPH01117633 U JP H01117633U JP 1397088 U JP1397088 U JP 1397088U JP 1397088 U JP1397088 U JP 1397088U JP H01117633 U JPH01117633 U JP H01117633U
Authority
JP
Japan
Prior art keywords
light
light shielding
overhead projector
shielding plate
backward
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
JP1397088U
Other languages
Japanese (ja)
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 JP1397088U priority Critical patent/JPH01117633U/ja
Publication of JPH01117633U publication Critical patent/JPH01117633U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案に係るオーバーヘツドプロジエク
ターの本体部分の略断面図である。 １……本体、４……光源箱、５……メタルハラ
イドランプ、９……第一作動板、１０……第二作
動板、１２……遮光板、１３……回転軸。 The drawing is a schematic cross-sectional view of the main body of the overhead projector according to the present invention. DESCRIPTION OF SYMBOLS 1... Main body, 4... Light source box, 5... Metal halide lamp, 9... First operating plate, 10... Second operating plate, 12... Light shielding plate, 13... Rotating shaft.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] オーバーヘツドプロジエクターの本体内部にお
いて、光源としてメタルハライドランプを配置せ
しめると共に、投映光路に対して進退可能であつ
て進出位置で投映光を遮蔽する遮光板と、該遮光
板の進退を制御する作動手段とを備えたことを特
徴とする、オーバーヘツドプロジエクターの遮光
装置。 Inside the main body of the overhead projector, a metal halide lamp is arranged as a light source, and a light shielding plate that can move forward and backward with respect to the projection light path and blocks the projected light at an advanced position, and an actuating means that controls the forward and backward movement of the light shielding plate. A light shielding device for an overhead projector, characterized by comprising:
JP1397088U 1988-02-04 1988-02-04 Pending JPH01117633U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1397088U JPH01117633U (en) 1988-02-04 1988-02-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1397088U JPH01117633U (en) 1988-02-04 1988-02-04

Publications (1)

Publication Number Publication Date
JPH01117633U true JPH01117633U (en) 1989-08-09

Family

ID=31224743

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1397088U Pending JPH01117633U (en) 1988-02-04 1988-02-04

Country Status (1)

Country Link
JP (1) JPH01117633U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5831537B2 (en) * 1980-01-23 1983-07-06 川崎製鉄株式会社 Device for introducing fatigue pre-crack into COD test piece in fatigue test equipment
JPS5930128B2 (en) * 1977-11-08 1984-07-25 バンキ，デビッド・レオン Device for mixing reactant gases in an oxygen reforming reactor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5930128B2 (en) * 1977-11-08 1984-07-25 バンキ，デビッド・レオン Device for mixing reactant gases in an oxygen reforming reactor
JPS5831537B2 (en) * 1980-01-23 1983-07-06 川崎製鉄株式会社 Device for introducing fatigue pre-crack into COD test piece in fatigue test equipment

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