JPS5746543A - Light signal transmission device - Google Patents

Light signal transmission device

Info

Publication number
JPS5746543A
JPS5746543A JP55121137A JP12113780A JPS5746543A JP S5746543 A JPS5746543 A JP S5746543A JP 55121137 A JP55121137 A JP 55121137A JP 12113780 A JP12113780 A JP 12113780A JP S5746543 A JPS5746543 A JP S5746543A
Authority
JP
Japan
Prior art keywords
rotary material
rotation angle
light
light projectors
signals
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
JP55121137A
Other languages
Japanese (ja)
Inventor
Kazuto Kinoshita
Toshio Akatsu
Seiichiro Terajima
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP55121137A priority Critical patent/JPS5746543A/en
Publication of JPS5746543A publication Critical patent/JPS5746543A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
    • H04B10/801—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water using optical interconnects, e.g. light coupled isolators, circuit board interconnections

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To transmit a prescribed signal to a rotary material independently of the rotation angle, by switching the signal to light projectors in accordance with the rotation angle of the rotary material provided with light receivers. CONSTITUTION:Light projectors 10a-10f are arranged at intervals of 60 deg. on the circumference of a holder 12 in the still side, and light receivers 11a-11c are arranged oppositely to these light projectors at intervals of 120 deg. on the circumference of the end of the shaft of a rotary material 13. This rotary material 13 is provided with a mark 14 for detection of the rotation angle, and a rotation angle detector 15 to detect the mark is provided in the still side. Signals to light projectors 10a-10f are switched in accordance with the rotation angle of the rotary material by a switching circuit, and single or plural electric signals are converted to light signals from the still side simultaneously or individually independently of the rotation speed of the rotary material and are transmitted to the rotary material 13.
JP55121137A 1980-09-03 1980-09-03 Light signal transmission device Pending JPS5746543A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55121137A JPS5746543A (en) 1980-09-03 1980-09-03 Light signal transmission device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55121137A JPS5746543A (en) 1980-09-03 1980-09-03 Light signal transmission device

Publications (1)

Publication Number Publication Date
JPS5746543A true JPS5746543A (en) 1982-03-17

Family

ID=14803780

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55121137A Pending JPS5746543A (en) 1980-09-03 1980-09-03 Light signal transmission device

Country Status (1)

Country Link
JP (1) JPS5746543A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58221532A (en) * 1982-06-18 1983-12-23 Furukawa Electric Co Ltd:The Optical communication method between revolving matter and non-revolving matter
JPS5945731A (en) * 1982-09-09 1984-03-14 Agency Of Ind Science & Technol Rotary photocoupler device
EP0432922A2 (en) * 1989-12-14 1991-06-19 Ampex Corporation An optical apparatus for electrically inter-coupling rotating and stationary devices
WO1999001720A1 (en) * 1997-07-03 1999-01-14 Zf Luftfahrttechnik Gmbh Sensor for angles of rotation
WO1999001850A3 (en) * 1997-07-03 1999-03-25 Zf Luftfahrttechnik Gmbh Signal transmitter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5590145A (en) * 1978-12-28 1980-07-08 Kagaku Gijutsucho Hoshasen Igaku Sogo Kenkyusho Optical signal transfer device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5590145A (en) * 1978-12-28 1980-07-08 Kagaku Gijutsucho Hoshasen Igaku Sogo Kenkyusho Optical signal transfer device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58221532A (en) * 1982-06-18 1983-12-23 Furukawa Electric Co Ltd:The Optical communication method between revolving matter and non-revolving matter
JPS5945731A (en) * 1982-09-09 1984-03-14 Agency Of Ind Science & Technol Rotary photocoupler device
EP0432922A2 (en) * 1989-12-14 1991-06-19 Ampex Corporation An optical apparatus for electrically inter-coupling rotating and stationary devices
EP0432922A3 (en) * 1989-12-14 1992-07-08 Ampex Corporation An optical apparatus for electrically inter-coupling rotating and stationary devices
WO1999001720A1 (en) * 1997-07-03 1999-01-14 Zf Luftfahrttechnik Gmbh Sensor for angles of rotation
WO1999001850A3 (en) * 1997-07-03 1999-03-25 Zf Luftfahrttechnik Gmbh Signal transmitter

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