JPS56138706A - Stationary light attenuator - Google Patents

Stationary light attenuator

Info

Publication number
JPS56138706A
JPS56138706A JP4152980A JP4152980A JPS56138706A JP S56138706 A JPS56138706 A JP S56138706A JP 4152980 A JP4152980 A JP 4152980A JP 4152980 A JP4152980 A JP 4152980A JP S56138706 A JPS56138706 A JP S56138706A
Authority
JP
Japan
Prior art keywords
fixed
spring type
type cylinder
constitution
occurrence
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
JP4152980A
Other languages
Japanese (ja)
Inventor
Kenichi Tsuchinuma
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4152980A priority Critical patent/JPS56138706A/en
Publication of JPS56138706A publication Critical patent/JPS56138706A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/264—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting
    • G02B6/266—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting the optical element being an attenuator

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

PURPOSE:To prevent the occurrence of optical axis deviation and internal loss by such constitution that a spring type cylinder housing a rod lens having prescribed attenuation-characteristics in the central part is inserted and fixed into a cylindrical enclosing device and connectors having optical fibers are inserted and connected to the small-diameter parts at both ends of the spring type cylinder. CONSTITUTION:The bore of a spring type cylinder 11 consisting of phosphor bronze or the like is expanded by way of its slit 12, and a convergent rod lens 14 having prescribed attenuation characteristics is inserted and fixed into the large- diameter part at the center. This is inserted into an enclosing device 7 fitted with a locating ring 18 consisting of a C-shaped spring in the annular recess at the central part, and is fixed by fitting the ring 18 into the annular recess 13 of the cylinder 11. Optical connectors 19, 20 supporting optical fibers 21, 22 are inserted into the small-diameter parts 15, 16 at both ends of the cylinders 11 and are fixed by means of lock screws 91. Thereby the occurrence of optical axis deviation and internal loss is prevented.
JP4152980A 1980-03-31 1980-03-31 Stationary light attenuator Pending JPS56138706A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4152980A JPS56138706A (en) 1980-03-31 1980-03-31 Stationary light attenuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4152980A JPS56138706A (en) 1980-03-31 1980-03-31 Stationary light attenuator

Publications (1)

Publication Number Publication Date
JPS56138706A true JPS56138706A (en) 1981-10-29

Family

ID=12610924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4152980A Pending JPS56138706A (en) 1980-03-31 1980-03-31 Stationary light attenuator

Country Status (1)

Country Link
JP (1) JPS56138706A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4753511A (en) * 1985-10-07 1988-06-28 Eastman Kodak Company Optical connector and adaptor kit for selective attenuation of signals in optical fiber circuits
JPS63105102U (en) * 1986-12-25 1988-07-07
US4850670A (en) * 1983-08-29 1989-07-25 American Telephone And Telegraph Company, At&T Bell Laboratories Optical fiber connector comprising drawn glass tubes
US4878730A (en) * 1988-10-31 1989-11-07 Hughes Aircraft Company Fiber optic attenuator
US4896938A (en) * 1983-08-29 1990-01-30 American Telephone And Telegraph Company, At&T Bell Laboratories Optical fiber connector comprising glass tubes
US4934785A (en) * 1983-08-29 1990-06-19 American Telephone And Telegraph Company Optical fiber connector
EP0661563A2 (en) * 1993-12-29 1995-07-05 AT&T Corp. Passive temperature-compensated optical wave guide coupler

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4850670A (en) * 1983-08-29 1989-07-25 American Telephone And Telegraph Company, At&T Bell Laboratories Optical fiber connector comprising drawn glass tubes
US4896938A (en) * 1983-08-29 1990-01-30 American Telephone And Telegraph Company, At&T Bell Laboratories Optical fiber connector comprising glass tubes
US4934785A (en) * 1983-08-29 1990-06-19 American Telephone And Telegraph Company Optical fiber connector
US4753511A (en) * 1985-10-07 1988-06-28 Eastman Kodak Company Optical connector and adaptor kit for selective attenuation of signals in optical fiber circuits
JPS63105102U (en) * 1986-12-25 1988-07-07
JPH0529441Y2 (en) * 1986-12-25 1993-07-28
US4878730A (en) * 1988-10-31 1989-11-07 Hughes Aircraft Company Fiber optic attenuator
EP0661563A2 (en) * 1993-12-29 1995-07-05 AT&T Corp. Passive temperature-compensated optical wave guide coupler
EP0661563A3 (en) * 1993-12-29 1997-02-05 At & T Corp Passive temperature-compensated optical wave guide coupler.

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