JPS54118184A - Luminous element with optical fiber - Google Patents
Luminous element with optical fiberInfo
- Publication number
- JPS54118184A JPS54118184A JP2579178A JP2579178A JPS54118184A JP S54118184 A JPS54118184 A JP S54118184A JP 2579178 A JP2579178 A JP 2579178A JP 2579178 A JP2579178 A JP 2579178A JP S54118184 A JPS54118184 A JP S54118184A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- light
- luminous
- optical fiber
- angle
- 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
Landscapes
- Optical Couplings Of Light Guides (AREA)
- Led Device Packages (AREA)
- Led Devices (AREA)
Abstract
PURPOSE: To reduce the signal noise caused by the reflection on the element surface by providing the luminous surface tilted against the central axis of the optical fiber when the luminous surface of the luminous element is made to touch the end part of the optical fiber.
CONSTITUTION: The normal lines are not set in parallel between central axis 15 of optical fiber 14 and luminous surface 17 of luminous element 16 but made to touch each other with angle of α. And material 18 featuring the same refractive index as the core of fiber 14 is filled onto the coupled surface. As a result, light 19 propagated within fiber 14 is partially reflected by surface 17 to become light 20. As propagation angle θ1 of light 20 is large within fiber 14, the light does not propagate within fiber 14 but radiated to outside fiber 14 through the clad. In this connection, angle α formed by axis 15 and surface 17 is set larger than the maximum incident angle determined by the aperture number of fiber 14. Thus, all reflected light 20 are radiated outside fiber 14, eliminating the signal noise completely.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2579178A JPS54118184A (en) | 1978-03-06 | 1978-03-06 | Luminous element with optical fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2579178A JPS54118184A (en) | 1978-03-06 | 1978-03-06 | Luminous element with optical fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54118184A true JPS54118184A (en) | 1979-09-13 |
Family
ID=12175648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2579178A Pending JPS54118184A (en) | 1978-03-06 | 1978-03-06 | Luminous element with optical fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54118184A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6080810A (en) * | 1983-10-11 | 1985-05-08 | Mitsubishi Electric Corp | Photodetecting optical element module |
JPS60262114A (en) * | 1984-06-11 | 1985-12-25 | Matsushita Electric Ind Co Ltd | Photodetecting device |
JPS6122311A (en) * | 1984-07-11 | 1986-01-30 | Matsushita Electric Ind Co Ltd | Ld analog optical transmitter |
JPS61243414A (en) * | 1985-04-22 | 1986-10-29 | Matsushita Electric Ind Co Ltd | Analog optical transmitter |
-
1978
- 1978-03-06 JP JP2579178A patent/JPS54118184A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6080810A (en) * | 1983-10-11 | 1985-05-08 | Mitsubishi Electric Corp | Photodetecting optical element module |
JPS60262114A (en) * | 1984-06-11 | 1985-12-25 | Matsushita Electric Ind Co Ltd | Photodetecting device |
JPH0556482B2 (en) * | 1984-06-11 | 1993-08-19 | Matsushita Electric Ind Co Ltd | |
JPS6122311A (en) * | 1984-07-11 | 1986-01-30 | Matsushita Electric Ind Co Ltd | Ld analog optical transmitter |
JPS61243414A (en) * | 1985-04-22 | 1986-10-29 | Matsushita Electric Ind Co Ltd | Analog optical transmitter |
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