JPH01100130U - - Google Patents

Info

Publication number
JPH01100130U
JPH01100130U JP19480787U JP19480787U JPH01100130U JP H01100130 U JPH01100130 U JP H01100130U JP 19480787 U JP19480787 U JP 19480787U JP 19480787 U JP19480787 U JP 19480787U JP H01100130 U JPH01100130 U JP H01100130U
Authority
JP
Japan
Prior art keywords
lens
light source
disposed above
overhead projector
lower 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
JP19480787U
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 JP19480787U priority Critical patent/JPH01100130U/ja
Publication of JPH01100130U publication Critical patent/JPH01100130U/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]

第１図は本考案に係るオーバーヘツドプロジエ
クター装置を示す斜視図、第２図は第１図の―
線断面図、第３図は本体を示す平面図、第４図
は本考案に係る装置をスクリーンの左側に配置し
た場合に得られる像を示す正面図、第５図は従来
の装置をスクリーンの左側に配置した場合に得ら
れる像を示す正面図である。 ３…電球、４…下部レンズ、５…上部レンズ、
６…反射鏡、１１…マスク。 FIG. 1 is a perspective view showing an overhead projector device according to the present invention, and FIG.
3 is a plan view showing the main body, FIG. 4 is a front view showing an image obtained when the device according to the present invention is placed on the left side of the screen, and FIG. 5 is a plan view showing the conventional device on the screen. It is a front view which shows the image obtained when it arrange|positions on the left side. 3...Light bulb, 4...Lower lens, 5...Upper lens,
6...Reflector, 11...Mask.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 光源の上方に配設され被投影物を支承する下部
レンズと、この下部レンズの上方に配設された上
部レンズと、この上部レンズの上方に配設され光
源の光を前方へ反射させる反射鏡とを備えたオー
バーヘツドプロジエクター装置において、前記光
源の明るさを部分的に調節する調節手段を設ける
と共に、前記下部レンズを焦点距離が幅方向に連
続的に変化するレンズとしたことを特徴とするオ
ーバーヘツドプロジエクター装置。 A lower lens disposed above the light source to support the projected object, an upper lens disposed above the lower lens, and a reflecting mirror disposed above the upper lens to reflect the light from the light source forward. An overhead projector device comprising: an adjusting means for partially adjusting the brightness of the light source, and the lower lens is a lens whose focal length changes continuously in the width direction. overhead projector equipment.
JP19480787U 1987-12-24 1987-12-24 Pending JPH01100130U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19480787U JPH01100130U (en) 1987-12-24 1987-12-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19480787U JPH01100130U (en) 1987-12-24 1987-12-24

Publications (1)

Publication Number Publication Date
JPH01100130U true JPH01100130U (en) 1989-07-05

Family

ID=31485515

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19480787U Pending JPH01100130U (en) 1987-12-24 1987-12-24

Country Status (1)

Country Link
JP (1) JPH01100130U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5262434A (en) * 1975-11-18 1977-05-23 Fuji Photo Film Co Ltd Image distortion correction device for projector
JPS572981U (en) * 1980-06-06 1982-01-08

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5262434A (en) * 1975-11-18 1977-05-23 Fuji Photo Film Co Ltd Image distortion correction device for projector
JPS572981U (en) * 1980-06-06 1982-01-08

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