JPH0522929Y2 - - Google Patents

Info

Publication number
JPH0522929Y2
JPH0522929Y2 JP1987058980U JP5898087U JPH0522929Y2 JP H0522929 Y2 JPH0522929 Y2 JP H0522929Y2 JP 1987058980 U JP1987058980 U JP 1987058980U JP 5898087 U JP5898087 U JP 5898087U JP H0522929 Y2 JPH0522929 Y2 JP H0522929Y2
Authority
JP
Japan
Prior art keywords
projector
screen
changing means
transmittance
fresnel 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.)
Expired - Lifetime
Application number
JP1987058980U
Other languages
English (en)
Japanese (ja)
Other versions
JPS63165638U (US07655688-20100202-C00086.png
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 JP1987058980U priority Critical patent/JPH0522929Y2/ja
Publication of JPS63165638U publication Critical patent/JPS63165638U/ja
Application granted granted Critical
Publication of JPH0522929Y2 publication Critical patent/JPH0522929Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)
JP1987058980U 1987-04-17 1987-04-17 Expired - Lifetime JPH0522929Y2 (US07655688-20100202-C00086.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987058980U JPH0522929Y2 (US07655688-20100202-C00086.png) 1987-04-17 1987-04-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987058980U JPH0522929Y2 (US07655688-20100202-C00086.png) 1987-04-17 1987-04-17

Publications (2)

Publication Number Publication Date
JPS63165638U JPS63165638U (US07655688-20100202-C00086.png) 1988-10-28
JPH0522929Y2 true JPH0522929Y2 (US07655688-20100202-C00086.png) 1993-06-11

Family

ID=30890048

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987058980U Expired - Lifetime JPH0522929Y2 (US07655688-20100202-C00086.png) 1987-04-17 1987-04-17

Country Status (1)

Country Link
JP (1) JPH0522929Y2 (US07655688-20100202-C00086.png)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5532535B2 (ja) * 2006-08-28 2014-06-25 セイコーエプソン株式会社 プロジェクタ

Also Published As

Publication number Publication date
JPS63165638U (US07655688-20100202-C00086.png) 1988-10-28

Similar Documents

Publication Publication Date Title
JP3655972B2 (ja) 反射型スクリーン及び前方投影システム
CA2144391A1 (en) Light transmission screen and its manufacturing method
CN206489309U (zh) 光路调整机构
US4390239A (en) Projection screen
EP3407123A1 (en) Viewing angle controlling film, backlight unit using the same and display device using the same
JP3663499B2 (ja) 反射型スクリーン
US5844715A (en) Projection screen for rear projection television set
JP2005292679A (ja) マイクロミラースクリーン
AU777830B2 (en) Projection system
JPH0522929Y2 (US07655688-20100202-C00086.png)
KR20020066319A (ko) 투사시스템
EP1536278A1 (en) Rear projection-type screen and rear projection-type image display device
JP2941292B2 (ja) 背面投写形装置
JPH0522930Y2 (US07655688-20100202-C00086.png)
CN211454220U (zh) 短焦正投式软幕
JPH02134677A (ja) マルチスクリーン型表示装置
CN213879963U (zh) 一种金融设备上的摄像头透光板
JPH0614217Y2 (ja) 透過型プロジエクタ
JP2624462B2 (ja) 遮光板
CN211577653U (zh) 超短焦硬幕
CN214409577U (zh) 抗光正投幕
CN219831623U (zh) 高对比度的正投影屏幕
JP3357171B2 (ja) マルチ映像装置用スクリーン
CN218213776U (zh) 一种透明背投屏幕及投影系统
KR0176433B1 (ko) 액정 프로젝터