JPS5420750A - Photo coupler - Google Patents
Photo couplerInfo
- Publication number
- JPS5420750A JPS5420750A JP8477977A JP8477977A JPS5420750A JP S5420750 A JPS5420750 A JP S5420750A JP 8477977 A JP8477977 A JP 8477977A JP 8477977 A JP8477977 A JP 8477977A JP S5420750 A JPS5420750 A JP S5420750A
- Authority
- JP
- Japan
- Prior art keywords
- reduce
- photo coupler
- lens
- prisms
- depositing
- 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
Abstract
PURPOSE: To reduce the number of parts and reduce the reflection loss on lens faces by using semispherical lens having a focus near their plane part as optical focusing devices and performing splitting of light beam by depositing a partly transparent reflecting film on the cemented face of two prisms.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8477977A JPS5420750A (en) | 1977-07-15 | 1977-07-15 | Photo coupler |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8477977A JPS5420750A (en) | 1977-07-15 | 1977-07-15 | Photo coupler |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5420750A true JPS5420750A (en) | 1979-02-16 |
Family
ID=13840164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8477977A Pending JPS5420750A (en) | 1977-07-15 | 1977-07-15 | Photo coupler |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5420750A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55157703A (en) * | 1979-05-23 | 1980-12-08 | Siemens Ag | Light branching element |
JPS5818202U (en) * | 1981-07-30 | 1983-02-04 | 富士通株式会社 | optical circuit unit |
JPS58202423A (en) * | 1982-05-20 | 1983-11-25 | Fujitsu Ltd | Multi-photocoupler |
US4456329A (en) * | 1979-10-12 | 1984-06-26 | Westinghouse Electric Corp. | Optical device having multiple wavelength dependent optical paths |
JPS6051805A (en) * | 1983-08-31 | 1985-03-23 | Seiko Instr & Electronics Ltd | Optical branching device |
CN110475164A (en) * | 2018-05-09 | 2019-11-19 | 北京吉视汇通科技有限责任公司 | Optical splitter and single fiber bi-directional passive light network transmission system |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5271250A (en) * | 1975-12-09 | 1977-06-14 | Philips Nv | Optical coupler |
-
1977
- 1977-07-15 JP JP8477977A patent/JPS5420750A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5271250A (en) * | 1975-12-09 | 1977-06-14 | Philips Nv | Optical coupler |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55157703A (en) * | 1979-05-23 | 1980-12-08 | Siemens Ag | Light branching element |
JPH0226204B2 (en) * | 1979-05-23 | 1990-06-08 | Siemens Ag | |
US4456329A (en) * | 1979-10-12 | 1984-06-26 | Westinghouse Electric Corp. | Optical device having multiple wavelength dependent optical paths |
JPS5818202U (en) * | 1981-07-30 | 1983-02-04 | 富士通株式会社 | optical circuit unit |
JPS58202423A (en) * | 1982-05-20 | 1983-11-25 | Fujitsu Ltd | Multi-photocoupler |
JPS6051805A (en) * | 1983-08-31 | 1985-03-23 | Seiko Instr & Electronics Ltd | Optical branching device |
CN110475164A (en) * | 2018-05-09 | 2019-11-19 | 北京吉视汇通科技有限责任公司 | Optical splitter and single fiber bi-directional passive light network transmission system |
CN110475164B (en) * | 2018-05-09 | 2021-11-16 | 北京吉视汇通科技有限责任公司 | Optical splitter and single-fiber bidirectional passive optical network transmission system |
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