JPH02134528U - - Google Patents

Info

Publication number
JPH02134528U
JPH02134528U JP1989043186U JP4318689U JPH02134528U JP H02134528 U JPH02134528 U JP H02134528U JP 1989043186 U JP1989043186 U JP 1989043186U JP 4318689 U JP4318689 U JP 4318689U JP H02134528 U JPH02134528 U JP H02134528U
Authority
JP
Japan
Prior art keywords
fresnel lens
lens
material forming
lenticular lens
refractive index
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
JP1989043186U
Other languages
English (en)
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 JP1989043186U priority Critical patent/JPH02134528U/ja
Publication of JPH02134528U publication Critical patent/JPH02134528U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)
JP1989043186U 1989-04-13 1989-04-13 Pending JPH02134528U (US20100012521A1-20100121-C00001.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989043186U JPH02134528U (US20100012521A1-20100121-C00001.png) 1989-04-13 1989-04-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989043186U JPH02134528U (US20100012521A1-20100121-C00001.png) 1989-04-13 1989-04-13

Publications (1)

Publication Number Publication Date
JPH02134528U true JPH02134528U (US20100012521A1-20100121-C00001.png) 1990-11-08

Family

ID=31555388

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989043186U Pending JPH02134528U (US20100012521A1-20100121-C00001.png) 1989-04-13 1989-04-13

Country Status (1)

Country Link
JP (1) JPH02134528U (US20100012521A1-20100121-C00001.png)

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