JPH0435841Y2 - - Google Patents

Info

Publication number
JPH0435841Y2
JPH0435841Y2 JP1985005985U JP598585U JPH0435841Y2 JP H0435841 Y2 JPH0435841 Y2 JP H0435841Y2 JP 1985005985 U JP1985005985 U JP 1985005985U JP 598585 U JP598585 U JP 598585U JP H0435841 Y2 JPH0435841 Y2 JP H0435841Y2
Authority
JP
Japan
Prior art keywords
chart
chart board
main body
projection
diffusion
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
JP1985005985U
Other languages
English (en)
Japanese (ja)
Other versions
JPS61124013U (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 JP1985005985U priority Critical patent/JPH0435841Y2/ja
Publication of JPS61124013U publication Critical patent/JPS61124013U/ja
Application granted granted Critical
Publication of JPH0435841Y2 publication Critical patent/JPH0435841Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Optical Elements Other Than Lenses (AREA)
JP1985005985U 1985-01-19 1985-01-19 Expired JPH0435841Y2 (en])

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985005985U JPH0435841Y2 (en]) 1985-01-19 1985-01-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985005985U JPH0435841Y2 (en]) 1985-01-19 1985-01-19

Publications (2)

Publication Number Publication Date
JPS61124013U JPS61124013U (en]) 1986-08-05
JPH0435841Y2 true JPH0435841Y2 (en]) 1992-08-25

Family

ID=30483006

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985005985U Expired JPH0435841Y2 (en]) 1985-01-19 1985-01-19

Country Status (1)

Country Link
JP (1) JPH0435841Y2 (en])

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5332387B2 (en]) * 1973-08-03 1978-09-07
JPS5788401A (en) * 1980-11-21 1982-06-02 Nitto Electric Ind Co Ltd Diffusion plate

Also Published As

Publication number Publication date
JPS61124013U (en]) 1986-08-05

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