ES448493A1 - Apparatus for controlling the output of one or more lamps - Google Patents

Apparatus for controlling the output of one or more lamps

Info

Publication number
ES448493A1
ES448493A1 ES448493A ES448493A ES448493A1 ES 448493 A1 ES448493 A1 ES 448493A1 ES 448493 A ES448493 A ES 448493A ES 448493 A ES448493 A ES 448493A ES 448493 A1 ES448493 A1 ES 448493A1
Authority
ES
Spain
Prior art keywords
illumination
level
lamp
response
area
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.)
Expired
Application number
ES448493A
Other languages
Spanish (es)
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.)
Esquire Inc
Original Assignee
Esquire Inc
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 Esquire Inc filed Critical Esquire Inc
Publication of ES448493A1 publication Critical patent/ES448493A1/en
Expired legal-status Critical Current

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
    • H05B41/36—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

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

A lighting system, with automatic energy control of the type that adjusts the brightness of a lamp in response to the level of illumination produced over an area determined by the lamp, in order to keep the lighting constant for a time, characterized by comprising a source reference signal that produces a stable electrical signal representing the desired level of illumination over a given area, a photoelectric cell designed to generate a signal in response to and indicative of the level of illumination in said area; amplifying devices that receive the signals coming from said reference signal source and said photoelectric cell circuit to produce an electrical signal functionally related to the level of illumination in the mentioned area, with respect to the desired illumination level and power control devices to adjust the power supplied to the lamp in response to the electrical signal produced by said amplifying devices. (Machine-translation by Google Translate, not legally binding)
ES448493A 1975-05-27 1976-05-26 Apparatus for controlling the output of one or more lamps Expired ES448493A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US58127075A 1975-05-27 1975-05-27

Publications (1)

Publication Number Publication Date
ES448493A1 true ES448493A1 (en) 1977-07-01

Family

ID=24324529

Family Applications (1)

Application Number Title Priority Date Filing Date
ES448493A Expired ES448493A1 (en) 1975-05-27 1976-05-26 Apparatus for controlling the output of one or more lamps

Country Status (9)

Country Link
AU (1) AU504533B2 (en)
BE (1) BE841405A (en)
BR (1) BR7602759A (en)
CA (1) CA1071294A (en)
DE (1) DE2622392A1 (en)
ES (1) ES448493A1 (en)
FR (1) FR2313837A1 (en)
GB (1) GB1522533A (en)
IT (1) IT1073959B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1177111A (en) * 1982-02-17 1984-10-30 Carl Schweer Lamp dimmer
AT376781B (en) * 1982-04-16 1984-12-27 Zumtobel Ag POWER-SAVING WORKPLACE LIGHT
US4721890A (en) * 1982-06-18 1988-01-26 Eg&G, Inc. Power supply circuit for an alkali vapor spectral lamp
JPS60120337A (en) * 1983-12-05 1985-06-27 Sanpack:Kk Light source for photography or video taking
NO158389C (en) * 1985-03-04 1988-08-31 Sintef LIGHT LIGHT CONTROL DEVICE.
FR2604540B1 (en) * 1986-09-30 1989-07-07 Develop Prod Electro Et DEVICE FOR ELECTRICALLY SUPPLYING A LIGHT SOURCE USING HALOGEN LAMPS

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1410742A (en) * 1964-10-07 1965-09-10 Philips Nv Device for controlling lighting in a dark space
US3361931A (en) * 1965-01-11 1968-01-02 Mc Graw Edison Co Photocontrol device for gaseous discharge lamps
US3681654A (en) * 1971-02-18 1972-08-01 Wagner Electric Corp Light-regulating power supply circuit for gaseous discharge lamp

Also Published As

Publication number Publication date
FR2313837A1 (en) 1976-12-31
DE2622392A1 (en) 1976-12-09
AU504533B2 (en) 1979-10-18
BE841405A (en) 1976-09-01
FR2313837B1 (en) 1980-09-05
CA1071294A (en) 1980-02-05
AU1324576A (en) 1977-10-27
BR7602759A (en) 1977-11-16
GB1522533A (en) 1978-08-23
IT1073959B (en) 1985-04-17

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19971103