JPH0197327U - - Google Patents

Info

Publication number
JPH0197327U
JPH0197327U JP1987193371U JP19337187U JPH0197327U JP H0197327 U JPH0197327 U JP H0197327U JP 1987193371 U JP1987193371 U JP 1987193371U JP 19337187 U JP19337187 U JP 19337187U JP H0197327 U JPH0197327 U JP H0197327U
Authority
JP
Japan
Prior art keywords
lens sheet
approximate spherical
close contact
spherical surface
spherical shape
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
JP1987193371U
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 JP1987193371U priority Critical patent/JPH0197327U/ja
Publication of JPH0197327U publication Critical patent/JPH0197327U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)
  • Transforming Electric Information Into Light Information (AREA)
JP1987193371U 1987-12-18 1987-12-18 Pending JPH0197327U (th)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987193371U JPH0197327U (th) 1987-12-18 1987-12-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987193371U JPH0197327U (th) 1987-12-18 1987-12-18

Publications (1)

Publication Number Publication Date
JPH0197327U true JPH0197327U (th) 1989-06-28

Family

ID=31484165

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987193371U Pending JPH0197327U (th) 1987-12-18 1987-12-18

Country Status (1)

Country Link
JP (1) JPH0197327U (th)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6061738A (ja) * 1983-09-16 1985-04-09 Hitachi Ltd 背面投写装置におけるスクリ−ン

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6061738A (ja) * 1983-09-16 1985-04-09 Hitachi Ltd 背面投写装置におけるスクリ−ン

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