NL185746B - DEVICE FOR DEPENDING ON AMBIENT LIGHT FROM ONE LOW-FREQUENT AC VOLTAGE SOURCE OF ONE OR MORE FLUORESCENT LAMPS. - Google Patents

DEVICE FOR DEPENDING ON AMBIENT LIGHT FROM ONE LOW-FREQUENT AC VOLTAGE SOURCE OF ONE OR MORE FLUORESCENT LAMPS.

Info

Publication number
NL185746B
NL185746B NL8403441A NL8403441A NL185746B NL 185746 B NL185746 B NL 185746B NL 8403441 A NL8403441 A NL 8403441A NL 8403441 A NL8403441 A NL 8403441A NL 185746 B NL185746 B NL 185746B
Authority
NL
Netherlands
Prior art keywords
frequent
depending
low
voltage source
ambient light
Prior art date
Application number
NL8403441A
Other languages
Dutch (nl)
Other versions
NL8403441A (en
Inventor
Frits Maneschijn
Original Assignee
Maars Holding Bv
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 Maars Holding Bv filed Critical Maars Holding Bv
Priority to NL8403441A priority Critical patent/NL185746B/en
Publication of NL8403441A publication Critical patent/NL8403441A/en
Publication of NL185746B publication Critical patent/NL185746B/en

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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/295—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
    • 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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3922—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations and measurement of the incident light
NL8403441A 1984-11-09 1984-11-09 DEVICE FOR DEPENDING ON AMBIENT LIGHT FROM ONE LOW-FREQUENT AC VOLTAGE SOURCE OF ONE OR MORE FLUORESCENT LAMPS. NL185746B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL8403441A NL185746B (en) 1984-11-09 1984-11-09 DEVICE FOR DEPENDING ON AMBIENT LIGHT FROM ONE LOW-FREQUENT AC VOLTAGE SOURCE OF ONE OR MORE FLUORESCENT LAMPS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8403441A NL185746B (en) 1984-11-09 1984-11-09 DEVICE FOR DEPENDING ON AMBIENT LIGHT FROM ONE LOW-FREQUENT AC VOLTAGE SOURCE OF ONE OR MORE FLUORESCENT LAMPS.
NL8403441 1984-11-09

Publications (2)

Publication Number Publication Date
NL8403441A NL8403441A (en) 1986-06-02
NL185746B true NL185746B (en) 1990-02-01

Family

ID=19844749

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8403441A NL185746B (en) 1984-11-09 1984-11-09 DEVICE FOR DEPENDING ON AMBIENT LIGHT FROM ONE LOW-FREQUENT AC VOLTAGE SOURCE OF ONE OR MORE FLUORESCENT LAMPS.

Country Status (1)

Country Link
NL (1) NL185746B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8803016A (en) * 1988-12-08 1990-07-02 Maars Produktie B V SUPPLY CHAIN FOR A GAS DISCHARGE LAMP.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3548208A (en) * 1968-07-16 1970-12-15 Litton Medical Products Fluoroscopic intensity control wherein the brightness of the image is maintained at a predetermined level
DE2928490A1 (en) * 1979-07-14 1981-01-29 Frei Hans Joachim Solar lamp constant control circuit - has series resonant start and current control with feedback thermistor to pulse width modulation power supply
EP0092654A3 (en) * 1981-04-14 1984-04-18 Siemens Aktiengesellschaft Ballast apparatus
CA1177111A (en) * 1982-02-17 1984-10-30 Carl Schweer Lamp dimmer
GB2117192B (en) * 1982-02-26 1986-01-02 Transtar Limited Lamp control circuit
DE3246454A1 (en) * 1982-12-15 1984-06-20 Siemens AG, 1000 Berlin und 8000 München INVERTER WITH A LOAD CIRCUIT CONTAINING A SERIES RESONANCE CIRCUIT AND A DISCHARGE LAMP

Also Published As

Publication number Publication date
NL8403441A (en) 1986-06-02

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Legal Events

Date Code Title Description
A1C A request for examination has been filed
V1 Lapsed because of non-payment of the annual fee

Effective date: 19970601