JPS63187139U - - Google Patents

Info

Publication number
JPS63187139U
JPS63187139U JP1987074492U JP7449287U JPS63187139U JP S63187139 U JPS63187139 U JP S63187139U JP 1987074492 U JP1987074492 U JP 1987074492U JP 7449287 U JP7449287 U JP 7449287U JP S63187139 U JPS63187139 U JP S63187139U
Authority
JP
Japan
Prior art keywords
lens sheet
lens
diffusion layer
sheet according
light diffusion
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.)
Granted
Application number
JP1987074492U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0614218Y2 (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 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 true JPS63187139U (cs) 1988-11-30
JPH0614218Y2 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 (cs)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004264328A (ja) * 2003-01-22 2004-09-24 Dainippon Printing Co Ltd フレネルレンズシートおよび背面投射型スクリーン

Citations (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

Patent Citations (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

Also Published As

Publication number Publication date
JPH0614218Y2 (ja) 1994-04-13

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