JPS56135345A - Optical signal transmitting device - Google Patents
Optical signal transmitting deviceInfo
- Publication number
- JPS56135345A JPS56135345A JP3776080A JP3776080A JPS56135345A JP S56135345 A JPS56135345 A JP S56135345A JP 3776080 A JP3776080 A JP 3776080A JP 3776080 A JP3776080 A JP 3776080A JP S56135345 A JPS56135345 A JP S56135345A
- Authority
- JP
- Japan
- Prior art keywords
- ring
- signal
- outputted
- optical signal
- photoconductive
- 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.)
- Granted
Links
Landscapes
- Optical Communication System (AREA)
- Optical Couplings Of Light Guides (AREA)
- Steering Controls (AREA)
Abstract
PURPOSE: To reduce the transmission loss of a photoconductive ring by a method wherein the outer and/or inner side surface thereof is formed into a curved or tapered surface in the photoconductive ring effecting an optical transmission of a signal outputted by the operation of switches provided on a steering wheel in order to control a load for a vehicle power.
CONSTITUTION: When the switches 17aW17k provided on the steering wheel 13 is operated, a corresponding pulse encoding signal is outputted from an encoder circuit 21 and an optical signal in accordance with the signal is outputted from a current to light converting circuit 22 comprising a luminous element 22a. This optical signal is inputted into a receptor element 24 through the photoconductive ring 23, is converted into an electrical signal and is amplified by an amplifier 25, thereafter, is impressed into a predetermined driving circuit 28 through a threshold circuit 26 and a decoder circuit 27 to drive the corresponding switch for the load. In above-described constitution, the outside surface 23b of the photoconductive ring 23 is formed into a tapered surface having a predetermined angle and an optical signal proceeding to the outside surface 23b from some point out of the ring is reflected while the signal is outputted from the lower surface of the ring, thereby, reducing the transmission loss of the ring.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55037760A JPS5911212B2 (en) | 1980-03-25 | 1980-03-25 | Optical signal transmission equipment |
GB8108833A GB2074313B (en) | 1980-03-25 | 1981-03-20 | Optical signal transmission systems |
DE19813111339 DE3111339A1 (en) | 1980-03-25 | 1981-03-23 | "DEVICE FOR TRANSMITTING SIGNALS IN MOTOR VEHICLES" |
US06/247,079 US4456903A (en) | 1980-03-25 | 1981-03-24 | Optical signal transmission system for an automotive vehicle |
FR8105865A FR2482390B1 (en) | 1980-03-25 | 1981-03-24 | OPTICAL SIGNAL TRANSMISSION SYSTEM FOR A MOTOR VEHICLE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55037760A JPS5911212B2 (en) | 1980-03-25 | 1980-03-25 | Optical signal transmission equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56135345A true JPS56135345A (en) | 1981-10-22 |
JPS5911212B2 JPS5911212B2 (en) | 1984-03-14 |
Family
ID=12506419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55037760A Expired JPS5911212B2 (en) | 1980-03-25 | 1980-03-25 | Optical signal transmission equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5911212B2 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5869143A (en) * | 1981-10-20 | 1983-04-25 | Toyota Motor Corp | Optical transmission device |
JPS58138444U (en) * | 1982-03-11 | 1983-09-17 | 三菱自動車工業株式会社 | Vehicle signal transmission device |
JPS6079302A (en) * | 1983-10-07 | 1985-05-07 | Toyo Denso Co Ltd | Optical slip ring device |
JPS6079303A (en) * | 1983-10-07 | 1985-05-07 | Toyo Denso Co Ltd | Optical slip ring device |
JPS6079304A (en) * | 1983-10-07 | 1985-05-07 | Toyo Denso Co Ltd | Optical slip ring device |
JPH01500873A (en) * | 1986-09-02 | 1989-03-23 | ヒユーズ・エアクラフト・カンパニー | Off-axis optical coupler |
JP2009251614A (en) * | 2008-04-09 | 2009-10-29 | Siemens Ag | Rotary transmission apparatus |
JP2013019705A (en) * | 2011-07-07 | 2013-01-31 | Mac Giken Co Ltd | Non-contact connector and torque measuring device |
-
1980
- 1980-03-25 JP JP55037760A patent/JPS5911212B2/en not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5869143A (en) * | 1981-10-20 | 1983-04-25 | Toyota Motor Corp | Optical transmission device |
JPS58138444U (en) * | 1982-03-11 | 1983-09-17 | 三菱自動車工業株式会社 | Vehicle signal transmission device |
JPS6079302A (en) * | 1983-10-07 | 1985-05-07 | Toyo Denso Co Ltd | Optical slip ring device |
JPS6079303A (en) * | 1983-10-07 | 1985-05-07 | Toyo Denso Co Ltd | Optical slip ring device |
JPS6079304A (en) * | 1983-10-07 | 1985-05-07 | Toyo Denso Co Ltd | Optical slip ring device |
JPH0311441B2 (en) * | 1983-10-07 | 1991-02-18 | Toyo Denso Kk | |
JPH01500873A (en) * | 1986-09-02 | 1989-03-23 | ヒユーズ・エアクラフト・カンパニー | Off-axis optical coupler |
JP2009251614A (en) * | 2008-04-09 | 2009-10-29 | Siemens Ag | Rotary transmission apparatus |
JP2013019705A (en) * | 2011-07-07 | 2013-01-31 | Mac Giken Co Ltd | Non-contact connector and torque measuring device |
Also Published As
Publication number | Publication date |
---|---|
JPS5911212B2 (en) | 1984-03-14 |
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