JPH0278940U - - Google Patents

Info

Publication number
JPH0278940U
JPH0278940U JP1988157624U JP15762488U JPH0278940U JP H0278940 U JPH0278940 U JP H0278940U JP 1988157624 U JP1988157624 U JP 1988157624U JP 15762488 U JP15762488 U JP 15762488U JP H0278940 U JPH0278940 U JP H0278940U
Authority
JP
Japan
Prior art keywords
light
fresnel lens
convex circular
circular fresnel
reflective screen
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
JP1988157624U
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 JP1988157624U priority Critical patent/JPH0278940U/ja
Publication of JPH0278940U publication Critical patent/JPH0278940U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)
JP1988157624U 1988-12-05 1988-12-05 Pending JPH0278940U (US06623731-20030923-C00052.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988157624U JPH0278940U (US06623731-20030923-C00052.png) 1988-12-05 1988-12-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988157624U JPH0278940U (US06623731-20030923-C00052.png) 1988-12-05 1988-12-05

Publications (1)

Publication Number Publication Date
JPH0278940U true JPH0278940U (US06623731-20030923-C00052.png) 1990-06-18

Family

ID=31437227

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988157624U Pending JPH0278940U (US06623731-20030923-C00052.png) 1988-12-05 1988-12-05

Country Status (1)

Country Link
JP (1) JPH0278940U (US06623731-20030923-C00052.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009192875A (ja) * 2008-02-15 2009-08-27 Seiko Epson Corp スクリーン及び投射システム

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009192875A (ja) * 2008-02-15 2009-08-27 Seiko Epson Corp スクリーン及び投射システム
JP4525769B2 (ja) * 2008-02-15 2010-08-18 セイコーエプソン株式会社 スクリーン及び投射システム

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