JPS5619001A - Variable rate light distributor - Google Patents
Variable rate light distributorInfo
- 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
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.
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)
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 |
-
1979
- 1979-07-26 JP JP9422579A patent/JPS5619001A/en active Pending
Cited By (4)
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 |
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