NO125518B - - Google Patents

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Publication number
NO125518B
NO125518B NO4034/69A NO403469A NO125518B NO 125518 B NO125518 B NO 125518B NO 4034/69 A NO4034/69 A NO 4034/69A NO 403469 A NO403469 A NO 403469A NO 125518 B NO125518 B NO 125518B
Authority
NO
Norway
Prior art keywords
voltage
lamp
compensation
rectifiers
lamps
Prior art date
Application number
NO4034/69A
Other languages
English (en)
Norwegian (no)
Inventor
S Jarmar
Original Assignee
Sveriges Radio Ab
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 Sveriges Radio Ab filed Critical Sveriges Radio Ab
Publication of NO125518B publication Critical patent/NO125518B/no

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
    • G03B27/73—Controlling exposure by variation of spectral composition, e.g. multicolor printers
    • 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
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/04—Controlling
    • H05B39/041—Controlling the light-intensity of the source
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Projection-Type Copiers In General (AREA)
  • Color Television Image Signal Generators (AREA)
NO4034/69A 1968-10-09 1969-10-09 NO125518B (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE13595/68A SE342966B (enrdf_load_stackoverflow) 1968-10-09 1968-10-09

Publications (1)

Publication Number Publication Date
NO125518B true NO125518B (enrdf_load_stackoverflow) 1972-09-18

Family

ID=20297655

Family Applications (1)

Application Number Title Priority Date Filing Date
NO4034/69A NO125518B (enrdf_load_stackoverflow) 1968-10-09 1969-10-09

Country Status (12)

Country Link
US (1) US3644785A (enrdf_load_stackoverflow)
JP (1) JPS5142491B1 (enrdf_load_stackoverflow)
AT (1) AT297849B (enrdf_load_stackoverflow)
BE (1) BE739994A (enrdf_load_stackoverflow)
CH (1) CH512778A (enrdf_load_stackoverflow)
DE (1) DE1950581C3 (enrdf_load_stackoverflow)
DK (1) DK124780B (enrdf_load_stackoverflow)
FR (1) FR2020201A1 (enrdf_load_stackoverflow)
GB (1) GB1292314A (enrdf_load_stackoverflow)
NL (1) NL6915277A (enrdf_load_stackoverflow)
NO (1) NO125518B (enrdf_load_stackoverflow)
SE (1) SE342966B (enrdf_load_stackoverflow)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7112208A (enrdf_load_stackoverflow) * 1971-09-04 1973-03-06
JPS4940140A (enrdf_load_stackoverflow) * 1972-08-18 1974-04-15
US3984726A (en) * 1975-04-25 1976-10-05 Ppg Industries, Inc. Ultraviolet light system having means for maintaining constant intensity light profile
US4408838A (en) * 1979-03-14 1983-10-11 Neal Factor System for the regulation of light for a sequential picture apparatus
JPS60126982U (ja) * 1984-02-06 1985-08-26 杉崎　則佳 プラグの引抜き具
DE3526590A1 (de) * 1985-07-25 1986-01-02 Zinnecker, Elisabeth, 7891 Lottstetten Verfahren und anordnung zur steuerung einer beleuchtungsanlage
US5237244A (en) * 1988-12-20 1993-08-17 Bertenshaw David R Electric lighting and power controllers therefor
GB2226431B (en) * 1988-12-20 1992-08-12 Strand Lighting Ltd Electric lighting and power controllers therefor
DE19829270B4 (de) * 1997-07-02 2006-03-16 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe
US6806659B1 (en) * 1997-08-26 2004-10-19 Color Kinetics, Incorporated Multicolored LED lighting method and apparatus
US7014336B1 (en) * 1999-11-18 2006-03-21 Color Kinetics Incorporated Systems and methods for generating and modulating illumination conditions
US7161313B2 (en) * 1997-08-26 2007-01-09 Color Kinetics Incorporated Light emitting diode based products
US7038398B1 (en) * 1997-08-26 2006-05-02 Color Kinetics, Incorporated Kinetic illumination system and methods
US20030133292A1 (en) 1999-11-18 2003-07-17 Mueller George G. Methods and apparatus for generating and modulating white light illumination conditions
US7598686B2 (en) 1997-12-17 2009-10-06 Philips Solid-State Lighting Solutions, Inc. Organic light emitting diode methods and apparatus
US20020176259A1 (en) 1999-11-18 2002-11-28 Ducharme Alfred D. Systems and methods for converting illumination
WO2003087653A2 (en) * 2002-04-10 2003-10-23 Karl Storz Endoscopy-America, Inc. Apparatus and method for powering portable battery operated light sources
EP1800054A2 (en) * 2004-09-10 2007-06-27 Color Kinetics Incorporated Lighting zone control methods and apparatus
GB2421367B (en) * 2004-12-20 2008-09-03 Stephen Bryce Hayes Lighting apparatus and method
CN114820385B (zh) * 2022-05-20 2023-06-23 河南科技学院 局部自适应的水下图像颜色校正方法

Also Published As

Publication number Publication date
DE1950581C3 (de) 1975-05-15
FR2020201A1 (enrdf_load_stackoverflow) 1970-07-10
NL6915277A (enrdf_load_stackoverflow) 1970-04-13
BE739994A (enrdf_load_stackoverflow) 1970-03-16
GB1292314A (en) 1972-10-11
SE342966B (enrdf_load_stackoverflow) 1972-02-21
DK124780B (da) 1972-11-20
JPS5142491B1 (enrdf_load_stackoverflow) 1976-11-16
DE1950581B2 (de) 1974-09-19
AT297849B (de) 1972-04-10
CH512778A (de) 1971-09-15
DE1950581A1 (de) 1970-04-23
US3644785A (en) 1972-02-22

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