JPH02134512U - - Google Patents

Info

Publication number
JPH02134512U
JPH02134512U JP4392189U JP4392189U JPH02134512U JP H02134512 U JPH02134512 U JP H02134512U JP 4392189 U JP4392189 U JP 4392189U JP 4392189 U JP4392189 U JP 4392189U JP H02134512 U JPH02134512 U JP H02134512U
Authority
JP
Japan
Prior art keywords
filter
density
continuously changes
predetermined direction
supporting
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
JP4392189U
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 JP4392189U priority Critical patent/JPH02134512U/ja
Publication of JPH02134512U publication Critical patent/JPH02134512U/ja
Pending legal-status Critical Current

Links

JP4392189U 1989-04-14 1989-04-14 Pending JPH02134512U (OSRAM)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4392189U JPH02134512U (OSRAM) 1989-04-14 1989-04-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4392189U JPH02134512U (OSRAM) 1989-04-14 1989-04-14

Publications (1)

Publication Number Publication Date
JPH02134512U true JPH02134512U (OSRAM) 1990-11-08

Family

ID=31556753

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4392189U Pending JPH02134512U (OSRAM) 1989-04-14 1989-04-14

Country Status (1)

Country Link
JP (1) JPH02134512U (OSRAM)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4947025A (OSRAM) * 1972-08-10 1974-05-07
JPS57144503A (en) * 1981-03-03 1982-09-07 Canon Inc Adjuster for distribution of light volume
JPS5814139B2 (ja) * 1975-03-17 1983-03-17 富士電機株式会社 デンリヨクキヨウキユウホウシキ
JPS61100716A (ja) * 1984-10-23 1986-05-19 Victor Co Of Japan Ltd Ｎｄフイルタ
JPS6239814A (ja) * 1985-08-14 1987-02-20 Sony Corp 透過光量調節装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4947025A (OSRAM) * 1972-08-10 1974-05-07
JPS5814139B2 (ja) * 1975-03-17 1983-03-17 富士電機株式会社 デンリヨクキヨウキユウホウシキ
JPS57144503A (en) * 1981-03-03 1982-09-07 Canon Inc Adjuster for distribution of light volume
JPS61100716A (ja) * 1984-10-23 1986-05-19 Victor Co Of Japan Ltd Ｎｄフイルタ
JPS6239814A (ja) * 1985-08-14 1987-02-20 Sony Corp 透過光量調節装置

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