JPH0522930Y2 - - Google Patents

Info

Publication number
JPH0522930Y2
JPH0522930Y2 JP1987063175U JP6317587U JPH0522930Y2 JP H0522930 Y2 JPH0522930 Y2 JP H0522930Y2 JP 1987063175 U JP1987063175 U JP 1987063175U JP 6317587 U JP6317587 U JP 6317587U JP H0522930 Y2 JPH0522930 Y2 JP H0522930Y2
Authority
JP
Japan
Prior art keywords
screen
projector
fresnel lens
light emitting
transmission type
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
JP1987063175U
Other languages
English (en)
Japanese (ja)
Other versions
JPS63170833U (cs
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 JP1987063175U priority Critical patent/JPH0522930Y2/ja
Publication of JPS63170833U publication Critical patent/JPS63170833U/ja
Application granted granted Critical
Publication of JPH0522930Y2 publication Critical patent/JPH0522930Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)
JP1987063175U 1987-04-24 1987-04-24 Expired - Lifetime JPH0522930Y2 (cs)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987063175U JPH0522930Y2 (cs) 1987-04-24 1987-04-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987063175U JPH0522930Y2 (cs) 1987-04-24 1987-04-24

Publications (2)

Publication Number Publication Date
JPS63170833U JPS63170833U (cs) 1988-11-07
JPH0522930Y2 true JPH0522930Y2 (cs) 1993-06-11

Family

ID=30898158

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987063175U Expired - Lifetime JPH0522930Y2 (cs) 1987-04-24 1987-04-24

Country Status (1)

Country Link
JP (1) JPH0522930Y2 (cs)

Also Published As

Publication number Publication date
JPS63170833U (cs) 1988-11-07

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