JPS56149839A - Space propagation light communication equipment - Google Patents

Space propagation light communication equipment

Info

Publication number
JPS56149839A
JPS56149839A JP5333580A JP5333580A JPS56149839A JP S56149839 A JPS56149839 A JP S56149839A JP 5333580 A JP5333580 A JP 5333580A JP 5333580 A JP5333580 A JP 5333580A JP S56149839 A JPS56149839 A JP S56149839A
Authority
JP
Japan
Prior art keywords
laser diode
focus
optical
light emission
optical fiber
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
JP5333580A
Other languages
Japanese (ja)
Inventor
Satoshi Koyama
Katsuyuki Nagano
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
Yagi Antenna Co Ltd
Original Assignee
Hitachi Ltd
Yagi Antenna Co 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, Yagi Antenna Co Ltd filed Critical Hitachi Ltd
Priority to JP5333580A priority Critical patent/JPS56149839A/en
Publication of JPS56149839A publication Critical patent/JPS56149839A/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
    • H04B10/50—Transmitters

Abstract

PURPOSE:To make it unnecessary to place a light emission element on the axis of the optical system, and easily cool the light emission element, by directing a light output of the light emission element through the optical filber. CONSTITUTION:A light output of the laser diode 3 propagates in the optical fiber 7, and is sent out to the space from the focus (f) of the lens 1. As for this optical fiber 7, its length to the laser diode 3 can be selected freely if only the position of the focus (f) is correct. Accordingly, once one end of the optical fiber 7 is fixed to the focus (f) of the lens 1, the printed substrate 4 on which the laser diode 3 has been mounted can be removed from the housing 2 as it is in said state, which is convenient for performing its adjustment, etc. Furthermore, since it is unnecessary to place the laser diode 3 and the cooling device on the optical axis, it is very convenient for mounting the equipment.
JP5333580A 1980-04-22 1980-04-22 Space propagation light communication equipment Pending JPS56149839A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5333580A JPS56149839A (en) 1980-04-22 1980-04-22 Space propagation light communication equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5333580A JPS56149839A (en) 1980-04-22 1980-04-22 Space propagation light communication equipment

Publications (1)

Publication Number Publication Date
JPS56149839A true JPS56149839A (en) 1981-11-19

Family

ID=12939865

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5333580A Pending JPS56149839A (en) 1980-04-22 1980-04-22 Space propagation light communication equipment

Country Status (1)

Country Link
JP (1) JPS56149839A (en)

Similar Documents

Publication Publication Date Title
EP0400830A3 (en) A laser
ATE213365T1 (en) LASER DIODE MODULE WITH INTEGRAL COOLING
JPS5743485A (en) Semiconductor ring laser device
FI903340A0 (en) OPTOELEKTRONISK SAENDARE OCH MOTTAGARE.
DE69331870D1 (en) Driver circuit for laser diode and optical transmission device
SE7709150L (en) FIBER OPTICAL SYSTEM FOR SIGNAL DISPLAY DEVICES
SE8106114L (en) FIBER LIGHT HEADS
JPS5545074A (en) Hologram lens
JPS5535369A (en) Coupling device of semiconductor laser and optical fiber
JPS5642389A (en) Light semiconductor light emitting device
EP0390525A3 (en) An optical pumping-type solid-state laser apparatus with a semiconductor laser device
JPS56149839A (en) Space propagation light communication equipment
Koga et al. Development of a portable laser sheet
JPS55126208A (en) Light emitting semiconductor device
JPS55119082A (en) Light wave range-finder
JPS5776885A (en) Optical semiconductor device
JPS5768811A (en) Beam condensing device
GB1403434A (en) Laser beam receivers
JPS545753A (en) Photo switch
JPS6430034A (en) Semiconductor laser driver
JPS57129037A (en) Optical transmission device
JPS57173238A (en) Optical transmitter
JPS53116166A (en) Photo coupler
JPS57174946A (en) Bidirectional optical transmission method
JPS56150889A (en) Cooling type photoelectric converter