NO873293L - Fremgangsmaate og kretsanordning for lysstyrkestyring av en lampe. - Google Patents
Fremgangsmaate og kretsanordning for lysstyrkestyring av en lampe.Info
- Publication number
- NO873293L NO873293L NO873293A NO873293A NO873293L NO 873293 L NO873293 L NO 873293L NO 873293 A NO873293 A NO 873293A NO 873293 A NO873293 A NO 873293A NO 873293 L NO873293 L NO 873293L
- Authority
- NO
- Norway
- Prior art keywords
- lamp
- operating voltage
- pulses
- comparator
- circuit according
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 16
- 239000004973 liquid crystal related substance Substances 0.000 claims description 30
- 239000003990 capacitor Substances 0.000 claims description 13
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 230000001419 dependent effect Effects 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims 1
- 230000005684 electric field Effects 0.000 description 5
- 230000010287 polarization Effects 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 238000013021 overheating Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002052 molecular layer Substances 0.000 description 2
- 239000004988 Nematic liquid crystal Substances 0.000 description 1
- CJOBVZJTOIVNNF-UHFFFAOYSA-N cadmium sulfide Chemical compound [Cd]=S CJOBVZJTOIVNNF-UHFFFAOYSA-N 0.000 description 1
- 229910052980 cadmium sulfide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
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
- H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
- H05B39/04—Controlling
- H05B39/041—Controlling the light-intensity of the source
- H05B39/042—Controlling the light-intensity of the source by measuring the incident light
-
- 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
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863627134 DE3627134A1 (de) | 1986-08-09 | 1986-08-09 | Verfahren und schaltungsanordnung zur helligkeits- und temperaturabhaenigen steuerung einer lampe, insbesondere zur beleuchtung einer lcd-anzeige |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO873293D0 NO873293D0 (no) | 1987-08-06 |
| NO873293L true NO873293L (no) | 1988-02-10 |
Family
ID=6307121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO873293A NO873293L (no) | 1986-08-09 | 1987-08-06 | Fremgangsmaate og kretsanordning for lysstyrkestyring av en lampe. |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4868459A (da) |
| EP (1) | EP0263537B1 (da) |
| JP (2) | JPS6344691A (da) |
| CN (1) | CN87105479A (da) |
| AU (1) | AU7664387A (da) |
| DE (2) | DE3627134A1 (da) |
| DK (1) | DK409987A (da) |
| FI (1) | FI873404A (da) |
| NO (1) | NO873293L (da) |
Families Citing this family (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01133192U (da) * | 1988-03-03 | 1989-09-11 | ||
| US4935641A (en) * | 1988-08-02 | 1990-06-19 | Nartron Corporation | Electronic rheostat method and apparatus |
| JPH02109720A (ja) * | 1988-10-20 | 1990-04-23 | Diesel Kiki Co Ltd | 車両用空気調和装置の表示装置 |
| JP2752665B2 (ja) * | 1988-11-09 | 1998-05-18 | 日本電気株式会社 | 表示付携帯無線機 |
| US5361190A (en) * | 1990-02-20 | 1994-11-01 | K. W. Muth Co. Inc. | Mirror assembly |
| US5118992A (en) * | 1990-04-17 | 1992-06-02 | North American Philips Corporation | Fluorescent lamp controlling arrangement |
| US5767934A (en) * | 1991-11-13 | 1998-06-16 | Robert Bosch Gmbh | Liquid-crystal display with foil heater and PTC sensor for backlight |
| GB9125331D0 (en) * | 1991-11-28 | 1992-01-29 | Shaye Communications Ltd | Illumination of displays |
| US5381074A (en) * | 1993-06-01 | 1995-01-10 | Chrysler Corporation | Self calibrating lighting control system |
| US5428265A (en) * | 1994-02-28 | 1995-06-27 | Honeywell, Inc. | Processor controlled fluorescent lamp dimmer for aircraft liquid crystal display instruments |
| US6100879A (en) * | 1996-08-27 | 2000-08-08 | Silicon Image, Inc. | System and method for controlling an active matrix display |
| US5788357A (en) * | 1996-08-28 | 1998-08-04 | K. W. Muth Company, Inc. | Mirror assembly |
| US6045243A (en) * | 1996-08-28 | 2000-04-04 | K.W. Muth Company, Inc. | Mirror assembly |
| CN1045514C (zh) * | 1996-11-11 | 1999-10-06 | 家电宝实业有限公司 | 座地卤素灯的电子光/温度控制装置 |
| US6157360A (en) * | 1997-03-11 | 2000-12-05 | Silicon Image, Inc. | System and method for driving columns of an active matrix display |
| US6100868A (en) * | 1997-09-15 | 2000-08-08 | Silicon Image, Inc. | High density column drivers for an active matrix display |
| GB9808016D0 (en) * | 1998-04-15 | 1998-06-17 | Cambridge Display Tech Ltd | Display control |
| US6005724A (en) * | 1998-10-05 | 1999-12-21 | K. W. Muth Company, Inc. | Mirror coating, mirror utilizing same, and a mirror assembly |
| US6257746B1 (en) | 1998-11-03 | 2001-07-10 | K. W. Muth Company, Inc. | Signalling assembly |
| DE19935458A1 (de) * | 1999-07-28 | 2001-02-01 | Mannesmann Vdo Ag | Verfahren zur Dimmung der Lichtemission einer mit einer Leuchtstofflampe beleuchtbaren Anzeige und mit einer Leuchtstofflampe beleuchtbare, in ihrer Helligkeit dimmbare Anzeige |
| US6618042B1 (en) | 1999-10-28 | 2003-09-09 | Gateway, Inc. | Display brightness control method and apparatus for conserving battery power |
| US6642840B2 (en) | 2000-07-28 | 2003-11-04 | Lang-Mekra North Amicica, Llc | Rearview mirror assembly with monitor |
| DE10036875A1 (de) | 2000-07-28 | 2002-02-28 | Mekra Lang Gmbh & Co Kg | Rückspiegel, insbesondere für Nutzfahrzeuge mit Kamera und Monitor |
| DE10335293B4 (de) * | 2003-07-28 | 2013-07-25 | Volkswagen Ag | Vorrichtung und Verfahren zur Leistungssteuerung von Beleuchtungselementen für Kraftfahrzeuge |
| US7372210B2 (en) * | 2003-10-01 | 2008-05-13 | Snap-On Incorporated | Method and apparatus for lamp heat control |
| US7675501B2 (en) * | 2003-12-17 | 2010-03-09 | Samsung Electronics Co., Ltd. | Liquid crystal display apparatus with light sensor |
| US7008091B2 (en) | 2003-12-18 | 2006-03-07 | K.W. Muth Company, Inc. | Electromagnetic radiation assembly |
| CN100391312C (zh) * | 2004-05-20 | 2008-05-28 | 上海交通大学 | 电子束加热温度控制方法 |
| JP4701719B2 (ja) * | 2005-01-07 | 2011-06-15 | パナソニック電工株式会社 | 点灯装置、照明装置、及び照明器具 |
| TWI315012B (en) * | 2005-01-28 | 2009-09-21 | Au Optronics Corporatio | System of backlight module and lcd using the same |
| US7241037B2 (en) | 2005-03-23 | 2007-07-10 | K.W. Muth Company | Signaling assembly |
| US7327321B2 (en) | 2005-06-27 | 2008-02-05 | K.W. Muth Company, Inc. | Electromagnetic radiation assembly |
| JP6767690B2 (ja) * | 2017-03-31 | 2020-10-14 | パナソニックＩｐマネジメント株式会社 | 電子ミラー装置 |
| CN110599966B (zh) * | 2019-08-28 | 2020-12-25 | 江苏泽景汽车电子股份有限公司 | 一种hud的lcd液晶屏温度保护系统及保护方法 |
| CN111885767A (zh) * | 2020-07-14 | 2020-11-03 | 奇瑞汽车股份有限公司 | 汽车大灯温控方法 |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3483424A (en) * | 1964-05-06 | 1969-12-09 | Delmatic Ltd | Electric lighting installation for a building |
| US3539861A (en) * | 1968-05-22 | 1970-11-10 | Mc Graw Edison Co | Control for luminaires employing gaseous discharge lamps at low ambient temperatures |
| CH532811A (fr) * | 1970-05-11 | 1972-08-31 | Manuf Des Montres Rolex S A Bi | Pièce d'horlogerie comprenant un dispositif d'affichage avec au moins une cellule à cristal liquide |
| US3745403A (en) * | 1971-11-30 | 1973-07-10 | Hitachi Ltd | Direct heating cathode structure for electron tubes |
| CA1002642A (en) * | 1972-03-10 | 1976-12-28 | James L. Fergason | Reflection system for liquid crystal displays |
| JPS5845522B2 (ja) * | 1977-06-24 | 1983-10-11 | 大成建設株式会社 | 橋梁の架設方法 |
| US4135116A (en) * | 1978-01-16 | 1979-01-16 | The United States Of America As Represented By The Secretary Of The Navy | Constant illumination control system |
| US4233545A (en) * | 1978-09-18 | 1980-11-11 | Webster Lee R | Automatic lighting control system |
| GB2042238B (en) * | 1979-02-14 | 1982-12-08 | Matsushita Electric Ind Co Ltd | Drive circuit for a liquid crystal display panel |
| JPS5622468A (en) * | 1979-08-01 | 1981-03-03 | Nissan Motor | Liquid crystal display unit |
| US4289383A (en) * | 1979-09-04 | 1981-09-15 | Timex Corporation | Lighted dot matrix display |
| JPS59763B2 (ja) * | 1980-11-20 | 1984-01-09 | 株式会社デンソー | 自動車用電子メ−タ |
| US4368406A (en) * | 1980-12-29 | 1983-01-11 | Ford Motor Company | Lamp dimmer control with integral ambient sensor |
| US4464606A (en) * | 1981-03-25 | 1984-08-07 | Armstrong World Industries, Inc. | Pulse width modulated dimming arrangement for fluorescent lamps |
| JPS6070660A (ja) * | 1983-09-27 | 1985-04-22 | Nippon Denso Co Ltd | 車両用放電管 |
| JPS6157814A (ja) * | 1984-08-29 | 1986-03-24 | Hitachi Ltd | 電子計器盤 |
| US4675777A (en) * | 1984-12-13 | 1987-06-23 | General Electric Company | Temperature-responsive circuit for load control apparatus |
| JPS62125329A (ja) * | 1985-11-27 | 1987-06-06 | Hosiden Electronics Co Ltd | 透過形表示装置 |
-
1986
- 1986-08-09 DE DE19863627134 patent/DE3627134A1/de not_active Withdrawn
-
1987
- 1987-07-23 DE DE87201417T patent/DE3787609D1/de not_active Expired - Fee Related
- 1987-07-23 EP EP87201417A patent/EP0263537B1/de not_active Expired - Lifetime
- 1987-08-05 FI FI873404A patent/FI873404A/fi not_active Application Discontinuation
- 1987-08-06 CN CN198787105479A patent/CN87105479A/zh active Pending
- 1987-08-06 NO NO873293A patent/NO873293L/no unknown
- 1987-08-06 DK DK409987A patent/DK409987A/da not_active Application Discontinuation
- 1987-08-06 JP JP62195420A patent/JPS6344691A/ja active Pending
- 1987-08-06 US US07/083,546 patent/US4868459A/en not_active Expired - Fee Related
- 1987-08-06 AU AU76643/87A patent/AU7664387A/en not_active Abandoned
-
1998
- 1998-05-06 JP JP003000U patent/JPH117U/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US4868459A (en) | 1989-09-19 |
| FI873404A0 (fi) | 1987-08-05 |
| JPH117U (ja) | 1999-01-12 |
| EP0263537B1 (de) | 1993-09-29 |
| DE3627134A1 (de) | 1988-02-11 |
| DK409987D0 (da) | 1987-08-06 |
| AU7664387A (en) | 1988-02-11 |
| NO873293D0 (no) | 1987-08-06 |
| DE3787609D1 (de) | 1993-11-04 |
| DK409987A (da) | 1988-02-10 |
| EP0263537A1 (de) | 1988-04-13 |
| FI873404A (fi) | 1988-02-10 |
| JPS6344691A (ja) | 1988-02-25 |
| CN87105479A (zh) | 1988-02-17 |
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