JPS63165640U - - Google Patents

Info

Publication number
JPS63165640U
JPS63165640U JP5937887U JP5937887U JPS63165640U JP S63165640 U JPS63165640 U JP S63165640U JP 5937887 U JP5937887 U JP 5937887U JP 5937887 U JP5937887 U JP 5937887U JP S63165640 U JPS63165640 U JP S63165640U
Authority
JP
Japan
Prior art keywords
light source
mirror
fresnel mirror
fresnel
flat surface
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.)
Granted
Application number
JP5937887U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0442831Y2 (US07968547-20110628-C00004.png
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 JP5937887U priority Critical patent/JPH0442831Y2/ja
Publication of JPS63165640U publication Critical patent/JPS63165640U/ja
Application granted granted Critical
Publication of JPH0442831Y2 publication Critical patent/JPH0442831Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Optical Elements Other Than Lenses (AREA)
  • Overhead Projectors And Projection Screens (AREA)
JP5937887U 1987-04-20 1987-04-20 Expired JPH0442831Y2 (US07968547-20110628-C00004.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5937887U JPH0442831Y2 (US07968547-20110628-C00004.png) 1987-04-20 1987-04-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5937887U JPH0442831Y2 (US07968547-20110628-C00004.png) 1987-04-20 1987-04-20

Publications (2)

Publication Number Publication Date
JPS63165640U true JPS63165640U (US07968547-20110628-C00004.png) 1988-10-28
JPH0442831Y2 JPH0442831Y2 (US07968547-20110628-C00004.png) 1992-10-09

Family

ID=30890814

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5937887U Expired JPH0442831Y2 (US07968547-20110628-C00004.png) 1987-04-20 1987-04-20

Country Status (1)

Country Link
JP (1) JPH0442831Y2 (US07968547-20110628-C00004.png)

Also Published As

Publication number Publication date
JPH0442831Y2 (US07968547-20110628-C00004.png) 1992-10-09

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