JPS5521076A - Light attenuator - Google Patents

Light attenuator

Info

Publication number
JPS5521076A
JPS5521076A JP9485378A JP9485378A JPS5521076A JP S5521076 A JPS5521076 A JP S5521076A JP 9485378 A JP9485378 A JP 9485378A JP 9485378 A JP9485378 A JP 9485378A JP S5521076 A JPS5521076 A JP S5521076A
Authority
JP
Japan
Prior art keywords
lens
optical axis
lenses
axis
parallel
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
JP9485378A
Other languages
Japanese (ja)
Other versions
JPS5755122B2 (en
Inventor
Hironori Hayata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP9485378A priority Critical patent/JPS5521076A/en
Publication of JPS5521076A publication Critical patent/JPS5521076A/en
Publication of JPS5755122B2 publication Critical patent/JPS5755122B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Light Guides In General And Applications Therefor (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

PURPOSE:To obtain the light attenuator which continuously changes the rate of attenuation with a simple constitution by arraying in series the 1st, 2nd, 3rd lenses of the specified lengths and the same axis and turning the 2nd lens about the parallel axis spacially from the optical axis. CONSTITUTION:Lenses 10, 12 of the same optical axis and (nL)/2+L/4, nL+L/2 in length and a lends 14 of the same length as that of the lens 10 are arrayed in series. When the lens 12 is turned together with an eccentrically rotating sleeve 13, the parallel deviation quantity DELTAx of the optical axis of the lens 12 with respect to the optical axis of the lenses 10, 14 changes and the light which has entered from the lens 10, is made to parallel luminous fluxes and emits after having been passed through the lens 12 and been focused by the lens 14 is continuously adjusted of its rate of attenuation.
JP9485378A 1978-08-02 1978-08-02 Light attenuator Granted JPS5521076A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9485378A JPS5521076A (en) 1978-08-02 1978-08-02 Light attenuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9485378A JPS5521076A (en) 1978-08-02 1978-08-02 Light attenuator

Publications (2)

Publication Number Publication Date
JPS5521076A true JPS5521076A (en) 1980-02-14
JPS5755122B2 JPS5755122B2 (en) 1982-11-22

Family

ID=14121582

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9485378A Granted JPS5521076A (en) 1978-08-02 1978-08-02 Light attenuator

Country Status (1)

Country Link
JP (1) JPS5521076A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58138763A (en) * 1982-02-12 1983-08-17 Kyoritsu Kagaku Sangyo Kk Adhesive composition
JPS5989304A (en) * 1982-09-09 1984-05-23 Suriibondo:Kk Catalytic system for two-part acrylic adhesive blend
JPS61201141A (en) * 1985-03-04 1986-09-05 Agency Of Ind Science & Technol Hydrogen detecting optical sensor
JPS6455514A (en) * 1987-08-26 1989-03-02 Kyocera Corp Optical variable attenuator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58138763A (en) * 1982-02-12 1983-08-17 Kyoritsu Kagaku Sangyo Kk Adhesive composition
JPS5989304A (en) * 1982-09-09 1984-05-23 Suriibondo:Kk Catalytic system for two-part acrylic adhesive blend
JPS61201141A (en) * 1985-03-04 1986-09-05 Agency Of Ind Science & Technol Hydrogen detecting optical sensor
JPS6455514A (en) * 1987-08-26 1989-03-02 Kyocera Corp Optical variable attenuator

Also Published As

Publication number Publication date
JPS5755122B2 (en) 1982-11-22

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