JPS63187140U - - Google Patents

Info

Publication number
JPS63187140U
JPS63187140U JP1987074995U JP7499587U JPS63187140U JP S63187140 U JPS63187140 U JP S63187140U JP 1987074995 U JP1987074995 U JP 1987074995U JP 7499587 U JP7499587 U JP 7499587U JP S63187140 U JPS63187140 U JP S63187140U
Authority
JP
Japan
Prior art keywords
lens
fresnel lens
observation side
transmission
cyular
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
JP1987074995U
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 JP1987074995U priority Critical patent/JPS63187140U/ja
Publication of JPS63187140U publication Critical patent/JPS63187140U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)
JP1987074995U 1987-05-19 1987-05-19 Pending JPS63187140U (no)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987074995U JPS63187140U (no) 1987-05-19 1987-05-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987074995U JPS63187140U (no) 1987-05-19 1987-05-19

Publications (1)

Publication Number Publication Date
JPS63187140U true JPS63187140U (no) 1988-11-30

Family

ID=30920734

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987074995U Pending JPS63187140U (no) 1987-05-19 1987-05-19

Country Status (1)

Country Link
JP (1) JPS63187140U (no)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56140335A (en) * 1980-04-04 1981-11-02 Matsushita Electric Ind Co Ltd Transmission type projecting screen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56140335A (en) * 1980-04-04 1981-11-02 Matsushita Electric Ind Co Ltd Transmission type projecting screen

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