JPS5619001A - Variable rate light distributor - Google Patents

Variable rate light distributor

Info

Publication number
JPS5619001A
JPS5619001A JP9422579A JP9422579A JPS5619001A JP S5619001 A JPS5619001 A JP S5619001A JP 9422579 A JP9422579 A JP 9422579A JP 9422579 A JP9422579 A JP 9422579A JP S5619001 A JPS5619001 A JP S5619001A
Authority
JP
Japan
Prior art keywords
light
beam splitter
lens
fiber
reflectance
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
JP9422579A
Other languages
Japanese (ja)
Inventor
Yoshinori Higuchi
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 JP9422579A priority Critical patent/JPS5619001A/en
Publication of JPS5619001A publication Critical patent/JPS5619001A/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
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2817—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using reflective elements to split or combine optical signals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

PURPOSE:To make distributiveness freely variable irrespective of the modes in fibers by disposing a beam splitter which is provided with vapor deposited films of continuously varying thicknesses on a glass disc and can change transmittance and reflectance through the revolution of said disc. CONSTITUTION:Input light from an optical fiber 6 is made into parallel luminous fluxes by a coupling lens 9. The luminous fluxes then reach a beam splitter 12, where the light is split to two. The reflected light is condensed to a fiber 7 by a lens 10 and the transmitted light is condensed by a lens 11 and reaches a fiber 8. This variable beam splitter 12 is formed by evaporation-depositing metal thin films of Al or the like on, for example, a glass disc and changing the thicknesses of the thin films gradually in the rotating direction. Hence, by changing the place where light falls through rotation, the extent of transmission and reflectance of light may be changed.
JP9422579A 1979-07-26 1979-07-26 Variable rate light distributor Pending JPS5619001A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9422579A JPS5619001A (en) 1979-07-26 1979-07-26 Variable rate light distributor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9422579A JPS5619001A (en) 1979-07-26 1979-07-26 Variable rate light distributor

Publications (1)

Publication Number Publication Date
JPS5619001A true JPS5619001A (en) 1981-02-23

Family

ID=14104363

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9422579A Pending JPS5619001A (en) 1979-07-26 1979-07-26 Variable rate light distributor

Country Status (1)

Country Link
JP (1) JPS5619001A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4492426A (en) * 1981-05-04 1985-01-08 U.S. Philips Corporation Optical branch coupler
US4626065A (en) * 1981-12-03 1986-12-02 Kei Mori Light conduction apparatus utilizing intermittent illumination applied to optical fibers for photosynthetic reaction
US4669817A (en) * 1983-02-04 1987-06-02 Kei Mori Apparatus for time-sharing light distribution
US4863229A (en) * 1982-02-17 1989-09-05 Sharp Kabushiki Kaisha Optical information transmitting device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4492426A (en) * 1981-05-04 1985-01-08 U.S. Philips Corporation Optical branch coupler
US4626065A (en) * 1981-12-03 1986-12-02 Kei Mori Light conduction apparatus utilizing intermittent illumination applied to optical fibers for photosynthetic reaction
US4863229A (en) * 1982-02-17 1989-09-05 Sharp Kabushiki Kaisha Optical information transmitting device
US4669817A (en) * 1983-02-04 1987-06-02 Kei Mori Apparatus for time-sharing light distribution

Similar Documents

Publication Publication Date Title
JPS5360651A (en) Semiconductor laser with optical fibers
ATE57770T1 (en) THIN FILM ARTICLE WITH VARIABLE OPTICAL PROPERTIES WITH HIGH ANGULAR COLOR CHANGE.
JPS5619001A (en) Variable rate light distributor
GB2005044A (en) Improvements in or relating to optical systems
JPS57139701A (en) Reflection preventing film of plastic optical member
JPS55124101A (en) Variable light attenuator having rotating light-attenuating disc built-in
JPS56159603A (en) Optical path switch
JPS5727214A (en) Graded lens and optical transmission line using said lens
JPS5588011A (en) End face structure of optical transmission wire
JPS56110901A (en) Plastic optical parts
JPS55126201A (en) Photoswitch
JPS57197505A (en) Thin film lens
JPS5785017A (en) Optical distributor
JPS56111808A (en) Rotary optical switch
JPS56113103A (en) Light distributor
JPS5595912A (en) Polarizing beam splitter
JPS5642106A (en) Monitoring device for thickness of film
JPS5774722A (en) Optical wavelength branching filter
JPS5764708A (en) Optical filter
JPS5521077A (en) Photo switch
JPS57133401A (en) Reflection preventing film
JPS54158242A (en) Optical circuit element
JPS57198425A (en) Optical branching and coupling circuit
JPS5651703A (en) Photoswitch
JPS56113102A (en) Light branching and combining device