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Class Information
Number: 315/117
Name: Electric lamp and discharge devices: systems > With load device temperature modifier > Automatic control of the temperature modifier
Description: Systems provided with means for controlling the operation of the heating and/or cooling means, such means being automatically controlled in response to some condition affecting the operation of the load device.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8686643 System and method for reducing lamp restrike time Apr. 1, 2014
8686644 Light generator systems and methods Apr. 1, 2014
8587567 Display apparatus and luminance control method Nov. 19, 2013
8564201 Amalgam-based fluorescent lamp control circuit Oct. 22, 2013
8541948 Operating device and method for operating at least one Hg low pressure discharge lamp Sep. 24, 2013
8482207 Temperature controlling system for LED module Jul. 9, 2013
8446108 LED controller with compensation for die-to-die variation and temperature drift May. 21, 2013
8384290 Illumination system adaptable to a cooling appliance Feb. 26, 2013
8384301 Light source system capable of dissipating heat Feb. 26, 2013
8378594 Light output control technique by estimating lamp efficacy as a function of temperature and power Feb. 19, 2013
8294389 Thermally efficient liquid motion lamp Oct. 23, 2012
8283868 LED light engine Oct. 9, 2012
8228000 Circuit arrangement for operating a low-pressure gas discharge lamp and corresponding method Jul. 24, 2012
8198792 Electrodeless discharge lamp, lighting fixture, and method for manufacturing electrodeless discharge lamp Jun. 12, 2012
8169146 Metal halide lamp May. 1, 2012
8115395 Self-dusting lamp device Feb. 14, 2012
8111011 LED luminaire with improved life and operation management Feb. 7, 2012
8106592 Method of driving a discharge lamp, driving arrangement, and projector system Jan. 31, 2012
8022631 Color control of light sources employing phosphors Sep. 20, 2011
7968828 Temperature controlling method of electron bombardment heating apparatus Jun. 28, 2011
7948186 Backlight control circuit having frequency setting circuit and method for controlling lighting of a lamp May. 24, 2011
7922334 Multistage cooling system for projector Apr. 12, 2011
7893624 Backlight control circuit having frequency setting circuit and method for controlling lighting of a lamp Feb. 22, 2011
7878660 Method for controlling a cooling device of a projecting system and the projecting system thereof Feb. 1, 2011
7794105 Temperature controlled light fixture for environmental chamber Sep. 14, 2010
7586730 Electron bombardment heating apparatus and temperature controlling apparatus Sep. 8, 2009
7578594 Illumination source activation based on temperature sensing Aug. 25, 2009
7438420 Display apparatus Oct. 21, 2008
7298093 Method and device for driving CCFL circuit Nov. 20, 2007
7291982 Method and apparatus for the closed loop and open loop control of filament heating for lamps Nov. 6, 2007
7119501 Dynamic color mixing LED device Oct. 10, 2006
7052143 Projection device having blower and/or lamp with feedback control May. 30, 2006
7038390 Lamp control system May. 2, 2006
7034467 Controller for suppressing temperature of screen Apr. 25, 2006
6960759 Light source device, image reading apparatus and image reading method Nov. 1, 2005
6847170 Smart light source with integrated operational parameters data storage capability Jan. 25, 2005
6753651 Emergency ballast with battery heater Jun. 22, 2004
6747413 Display cold spot temperature regulator Jun. 8, 2004
6635991 Method of adjusting the light spectrum of a gas discharge lamp, gas discharge lamp, and luminaire for said lamp Oct. 21, 2003
6498442 Self-heating type cold-cathode discharge tube control apparatus Dec. 24, 2002
6483247 Lighting apparatus and light control method Nov. 19, 2002
6479947 Ultraviolet fluorescent lamp with unique drive circuit Nov. 12, 2002
6476560 Liquid crystal projector Nov. 5, 2002
6472823 LED tubular lighting device and control device Oct. 29, 2002
6352356 Illuminating device for a display Mar. 5, 2002
6333602 Smart light source with integrated operational parameters data storage capability Dec. 25, 2001
6268701 Fluorescent light ballast convective cooling means Jul. 31, 2001
6181070 Method for cooling a lamp backlighting module of a liquid crystal display Jan. 30, 2001
6127784 LED driving circuitry with variable load to control output light intensity of an LED Oct. 3, 2000
6066920 Illumination device, method for driving the illumination device and display including the illumination device May. 23, 2000

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