CH654427A5 - Method for protecting the light source of opto-transmitters - Google Patents

Method for protecting the light source of opto-transmitters Download PDF

Info

Publication number
CH654427A5
CH654427A5 CH3669/81A CH366981A CH654427A5 CH 654427 A5 CH654427 A5 CH 654427A5 CH 3669/81 A CH3669/81 A CH 3669/81A CH 366981 A CH366981 A CH 366981A CH 654427 A5 CH654427 A5 CH 654427A5
Authority
CH
Switzerland
Prior art keywords
light source
temperature
current
source
light
Prior art date
Application number
CH3669/81A
Other languages
German (de)
English (en)
Inventor
Baldomero Fernandez
Antonio Aguilar
Original Assignee
Int Standard Electric Corp
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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of CH654427A5 publication Critical patent/CH654427A5/de

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/395—Linear regulators
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • H05B45/56—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving measures to prevent abnormal temperature of the LEDs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Landscapes

  • Semiconductor Lasers (AREA)
  • Emergency Protection Circuit Devices (AREA)
CH3669/81A 1980-06-04 1981-06-04 Method for protecting the light source of opto-transmitters CH654427A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES492136A ES8101334A1 (es) 1980-06-04 1980-06-04 Un procedimiento de proteccion de la fuente luminosa de los transmisores opticos

Publications (1)

Publication Number Publication Date
CH654427A5 true CH654427A5 (en) 1986-02-14

Family

ID=8480548

Family Applications (1)

Application Number Title Priority Date Filing Date
CH3669/81A CH654427A5 (en) 1980-06-04 1981-06-04 Method for protecting the light source of opto-transmitters

Country Status (2)

Country Link
CH (1) CH654427A5 (es)
ES (1) ES8101334A1 (es)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988010462A1 (en) * 1987-06-25 1988-12-29 Valtion Teknillinen Tutkimuskeskus Procedure for controlling a radiation source and controllable radiation source
EP2415327A2 (en) * 2009-03-31 2012-02-08 Osram Sylvania, Inc. Current source to drive a light source in an optical sensor system
WO2012045555A1 (de) * 2010-10-05 2012-04-12 Tridonic Gmbh & Co Kg Betriebsgerät mit einstellbarer kritischer temperatur

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988010462A1 (en) * 1987-06-25 1988-12-29 Valtion Teknillinen Tutkimuskeskus Procedure for controlling a radiation source and controllable radiation source
EP2415327A2 (en) * 2009-03-31 2012-02-08 Osram Sylvania, Inc. Current source to drive a light source in an optical sensor system
EP2415327A4 (en) * 2009-03-31 2013-11-06 Osram Sylvania Inc POWER SOURCE FOR OPERATING A LIGHT SOURCE IN AN OPTICAL SENSOR SYSTEM
WO2012045555A1 (de) * 2010-10-05 2012-04-12 Tridonic Gmbh & Co Kg Betriebsgerät mit einstellbarer kritischer temperatur

Also Published As

Publication number Publication date
ES492136A0 (es) 1980-12-16
ES8101334A1 (es) 1980-12-16

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Owner name: ALCATEL N.V.

PL Patent ceased