JPH0414743Y2 - - Google Patents

Info

Publication number
JPH0414743Y2
JPH0414743Y2 JP1987046180U JP4618087U JPH0414743Y2 JP H0414743 Y2 JPH0414743 Y2 JP H0414743Y2 JP 1987046180 U JP1987046180 U JP 1987046180U JP 4618087 U JP4618087 U JP 4618087U JP H0414743 Y2 JPH0414743 Y2 JP H0414743Y2
Authority
JP
Japan
Prior art keywords
lens
screen
total reflection
light
sides
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
Application number
JP1987046180U
Other languages
English (en)
Japanese (ja)
Other versions
JPS63153247U (en]
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 JP1987046180U priority Critical patent/JPH0414743Y2/ja
Publication of JPS63153247U publication Critical patent/JPS63153247U/ja
Application granted granted Critical
Publication of JPH0414743Y2 publication Critical patent/JPH0414743Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)
JP1987046180U 1987-03-28 1987-03-28 Expired JPH0414743Y2 (en])

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987046180U JPH0414743Y2 (en]) 1987-03-28 1987-03-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987046180U JPH0414743Y2 (en]) 1987-03-28 1987-03-28

Publications (2)

Publication Number Publication Date
JPS63153247U JPS63153247U (en]) 1988-10-07
JPH0414743Y2 true JPH0414743Y2 (en]) 1992-04-02

Family

ID=30865604

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987046180U Expired JPH0414743Y2 (en]) 1987-03-28 1987-03-28

Country Status (1)

Country Link
JP (1) JPH0414743Y2 (en])

Also Published As

Publication number Publication date
JPS63153247U (en]) 1988-10-07

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