JPH0614218Y2 - レンズシ−ト - Google Patents

レンズシ−ト

Info

Publication number
JPH0614218Y2
JPH0614218Y2 JP1987074492U JP7449287U JPH0614218Y2 JP H0614218 Y2 JPH0614218 Y2 JP H0614218Y2 JP 1987074492 U JP1987074492 U JP 1987074492U JP 7449287 U JP7449287 U JP 7449287U JP H0614218 Y2 JPH0614218 Y2 JP H0614218Y2
Authority
JP
Japan
Prior art keywords
light
fresnel lens
lens sheet
lens
screen
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
JP1987074492U
Other languages
English (en)
Japanese (ja)
Other versions
JPS63187139U (enExample
Inventor
博 関口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing Co Ltd
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 Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP1987074492U priority Critical patent/JPH0614218Y2/ja
Publication of JPS63187139U publication Critical patent/JPS63187139U/ja
Application granted granted Critical
Publication of JPH0614218Y2 publication Critical patent/JPH0614218Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)
JP1987074492U 1987-05-19 1987-05-19 レンズシ−ト Expired - Lifetime JPH0614218Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987074492U JPH0614218Y2 (ja) 1987-05-19 1987-05-19 レンズシ−ト

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987074492U JPH0614218Y2 (ja) 1987-05-19 1987-05-19 レンズシ−ト

Publications (2)

Publication Number Publication Date
JPS63187139U JPS63187139U (enExample) 1988-11-30
JPH0614218Y2 true JPH0614218Y2 (ja) 1994-04-13

Family

ID=30919752

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987074492U Expired - Lifetime JPH0614218Y2 (ja) 1987-05-19 1987-05-19 レンズシ−ト

Country Status (1)

Country Link
JP (1) JPH0614218Y2 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004066025A1 (ja) * 2003-01-22 2004-08-05 Dai Nippon Printing Co., Ltd. フレネルレンズシートおよびそれを備えた背面投射型スクリーン

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS578535A (en) * 1980-06-19 1982-01-16 Sony Corp Transmission type screen
JPS58184939A (ja) * 1982-04-23 1983-10-28 Dainippon Printing Co Ltd レンズシ−ト

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004066025A1 (ja) * 2003-01-22 2004-08-05 Dai Nippon Printing Co., Ltd. フレネルレンズシートおよびそれを備えた背面投射型スクリーン

Also Published As

Publication number Publication date
JPS63187139U (enExample) 1988-11-30

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