JPH0521070Y2 - - Google Patents

Info

Publication number
JPH0521070Y2
JPH0521070Y2 JP1987114695U JP11469587U JPH0521070Y2 JP H0521070 Y2 JPH0521070 Y2 JP H0521070Y2 JP 1987114695 U JP1987114695 U JP 1987114695U JP 11469587 U JP11469587 U JP 11469587U JP H0521070 Y2 JPH0521070 Y2 JP H0521070Y2
Authority
JP
Japan
Prior art keywords
center
illumination lamp
screen
imaging lens
fresnel lens
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
JP1987114695U
Other languages
English (en)
Japanese (ja)
Other versions
JPS6419942U (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 JP1987114695U priority Critical patent/JPH0521070Y2/ja
Publication of JPS6419942U publication Critical patent/JPS6419942U/ja
Application granted granted Critical
Publication of JPH0521070Y2 publication Critical patent/JPH0521070Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)
JP1987114695U 1987-07-27 1987-07-27 Expired - Lifetime JPH0521070Y2 (en])

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987114695U JPH0521070Y2 (en]) 1987-07-27 1987-07-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987114695U JPH0521070Y2 (en]) 1987-07-27 1987-07-27

Publications (2)

Publication Number Publication Date
JPS6419942U JPS6419942U (en]) 1989-01-31
JPH0521070Y2 true JPH0521070Y2 (en]) 1993-05-31

Family

ID=31355678

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987114695U Expired - Lifetime JPH0521070Y2 (en]) 1987-07-27 1987-07-27

Country Status (1)

Country Link
JP (1) JPH0521070Y2 (en])

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59173051U (ja) * 1983-05-02 1984-11-19 株式会社リコー 反射型オ−バヘツドプロジエクタ

Also Published As

Publication number Publication date
JPS6419942U (en]) 1989-01-31

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