ClassID:

233287

H05B41/38 - CPC Classification

Classification description:

Circuit arrangements or apparatus for igniting or operating discharge lamps; Circuit arrangements; Controlling Controlling the intensity of light

Sub-classes:
Recent Application in this class:
#1
20250161708
2025-05-22

INTENSE PULSE LIGHT (IPL) APPARATUS UTILIZING A PULSE FORMING NETWORK (PFN)

#2
20250159775
2025-05-15

SENSOR FOR DETECTING GLARE CONDITIONS

#3
20250081302
2025-03-06

HEAT TREATMENT APPARATUS FOR HEATING SUBSTRATE BY LIGHT IRRADIATION

#4
20240290606
2024-08-29

Excimer lamp and excimer lamp device

#5
20240042082
2024-02-08

GENERAL ILLUMINATION LED SYSTEM INCLUDING FAR UV C

#6
20230263924
2023-08-24

General illumination LED system including far UV C

#7
20230044306
2023-02-09

HIGHLY EFFICIENT FAR UV FILTRATION SYSTEM

#8
20230041901
2023-02-09

READILY INTERCHANGEABLE LIGHT MODIFIER FOR A UV C FIXTURE

#9
20220338318
2022-10-20

Ultraviolet lamp output modulation

#10
20220241448
2022-08-04

FAR UV C CAN LIGHT FIXTURE

#11
20220232680
2022-07-21

LED driver control circuit

#12
20220170320
2022-06-02

Sensor for detecting glare conditions

#13
20220072168
2022-03-10

Light source device, and sterilizing/deodorizing device

#14
20220059338
2022-02-24

CARTRIDGE BASED UV C STERILIZATION SYSTEM

#15
20220054689
2022-02-24

Highly efficient UV C source

#16
20220054688
2022-02-24

Wide angle far UV C fixture

#17
20220054682
2022-02-24

Multi-head far UV C fixture

#18
20220054681
2022-02-24

Far UV C power supply

#19
20210386884
2021-12-16

Systems and methods for providing power to ultraviolet lamps of sanitizing systems

#20
20210386882
2021-12-16

Systems and methods for providing power to ultraviolet lamps of sanitizing systems

#21
20210251057
2021-08-12

FLASH GENERATOR FOR A FLASH TUBE

#22
20210127472
2021-04-29

Lighting apparatus and corresponding system, method and computer program product

#23
20210068228
2021-03-04

Bleeder control circuit, driver system, and method for controlling bleeder

#24
20200360714
2020-11-19

Intense pulse light (IPL) apparatus utilizing a pulse forming network (PFN)

#25
20200323055
2020-10-08

Outdoor lighting fixtures control systems and methods

#26
20200195821
2020-06-18

Photographing system for setting light emission amount of strobe, illumination apparatus, and control method

#27
20200159087
2020-05-21

Photographic lighting system and method

#28
20200008286
2020-01-02

Flash generator for a flash tube

#29
20190364651
2019-11-28

Low-voltage controller with dimming function and method

#30
20190338890
2019-11-07

LED retrofit systems

#31
20190208611
2019-07-04

Determination of starting time for flash emitted from flash tube

#32
20190208593
2019-07-04

Retrofit light emitting diode, LED, tube for enabling step dimming in a multilamp luminaire lighting system

#33
20190206670
2019-07-04

Burst-mode for low power operation of RF fluorescent lamps

#34
20190199985
2019-06-27

Discharge lamp drive device, light source device, projector, and discharge lamp drive method

#35
20190174590
2019-06-06

Electronic ballast-based device for controlling electronic control circuit and lighting lamp

#36
20190121218
2019-04-25

Photographic lighting system and method

#37
20190090334
2019-03-21

Discharge lamp drive device, light source device, projector, and discharge lamp drive method

#38
20190090333
2019-03-21

Discharge lamp drive device, light source device, projector, and discharge lamp drive method

#39
20190069382
2019-02-28

Methods and systems for controlling an electrical load

#40
20190045610
2019-02-07

Lighting fixture control systems and methods

#41
20190029099
2019-01-24

LED LAMP

#42
20180352631
2018-12-06

Control set for adjusting light source

#43
20180270937
2018-09-20

Method for operating a first and a second light-emitting unit of a motor vehicle, and circuit arrangement

#44
20180255629
2018-09-06

Methods and systems for controlling an electrical load

#45
20180203357
2018-07-19

METHOD FOR CONTROLLING RADIATION EMITTING FROM ONE OR MORE TUBULAR LAMPS IN AN EXPOSURE APPARATUS

#46
20180146534
2018-05-24

Operating a ballast for a gas discharge lamp

#47
20180128454
2018-05-10

VARIABLE SHUTTERS ON AN ENERGY SOURCE

#48
20180027638
2018-01-25

Smart lighting system with ultra-low standby consumption

#49
20170332465
2017-11-16

Dimmer with photo sensor and high/low clamping

#50
20170332464
2017-11-16

Electronic device

#51
20170311428
2017-10-26

Flash generator for a flash tube

#52
20170303403
2017-10-19

Method and apparatus for curing thin films on low-temperature substrates at high speeds

#53
20170293204
2017-10-12

Photographic lighting system and method

#54
20170238388
2017-08-17

Lighting device operating at different power levels

#55
20170215256
2017-07-27

Outdoor lighting apparatus with short range of very short range communication interface

#56
20170135289
2017-05-18

Grow light systems and methods for controlling the same

#57
20170026561
2017-01-26

SYSTEM AND METHOD FOR ADJUSTING BRIGHTNESS OF LIGHT SOURCE OF CRITICAL DIMENSION MEASURING DEVICE

#58
20170006202
2017-01-05

Endoscope system and method of operating endoscope system

#59
20160381774
2016-12-29

Methods and systems for controlling an electrical load

#60
20160320693
2016-11-03

Discharge lamp driving device, projector, and discharge lamp driving method

#61
20160286633
2016-09-29

Driver for a light source

#62
20160270196
2016-09-15

Discharge lamp driving device, projector, and discharge lamp driving method

#63
20160234919
2016-08-11

Energy saving HID lamp

#64
20160174342
2016-06-16

Method for controlling lighting element and associated system

#65
20160143106
2016-05-19

Method and system for lighting interface messaging with reduced power consumption

#66
20160057843
2016-02-25

Electrodeless fluorescent ballast driving circuit and resonance circuit with added filtration and protection

#67
20160037730
2016-02-11

Grow light systems and methods for controlling the same

#68
20160029465
2016-01-28

SYSTEM AND METHOD FOR ELECTRONIC DEVICE CONTROL IN THE PRESENCE OF ELECTRICAL ARCING

#69
20150282275
2015-10-01

DIMMER WITH PHOTO SENSOR AND HIGH/LOW CLAMPING

#70
20150245449
2015-08-27

LIGHTING SYSTEM AND METHOD FOR CONTROLLING A LIGHTING SYSTEM

#71
20150192847
2015-07-09

Projection apparatus and light source module having fixing wire

#72
20150131063
2015-05-14

Method for operating a discharge lamp and projection arrangement

#73
20150130352
2015-05-14

Data center

#74
20150108373
2015-04-23

Photon source, metrology apparatus, lithographic system and device manufacturing method

#75
20150103324
2015-04-16

Discharge lamp driving device, projector, and discharge lamp driving method

#76
20150008830
2015-01-08

Lighting fixture control systems and methods

#77
20150002028
2015-01-01

Two-level LED security light with motion sensor

#78
20140367593
2014-12-18

Extended dynamic range drive circuit for emitter arrays

#79
20140292199
2014-10-02

Power circuit for a gas discharge lamp

#80
20140239836
2014-08-28

Controlling an electronic dimming ballast during low temperature or low mercury conditions

#81
20140225937
2014-08-14

Image display device

#82
20140218697
2014-08-07

Light source drive device, display apparatus, and light source drive method

#83
20140218696
2014-08-07

Light source drive device, display apparatus, and light source drive method

#84
20140145613
2014-05-29

Arrangements and methods for triac dimming of gas discharge lamps powered by electronic ballasts

#85
20140145598
2014-05-29

HIGH FREQUENCY INDUCTION RF FLUORESCENT LAMP WITH BURST-MODE DIMMING

#86
20140145596
2014-05-29

High frequency induction lighting

#87
20140091722
2014-04-03

Method and apparatus for measuring operating characteristics in a load control device

#88
20130342107
2013-12-26

Method of driving a gas-discharge lamp

#89
20130329204
2013-12-12

Photon source, metrology apparatus, lithographic system and device manufacturing method

#90
20130257292
2013-10-03

Lighting fixture control systems and methods

#91
20130229129
2013-09-05

METHOD AND DEVICE FOR DRIVING AN HID LAMP

#92
20130229128
2013-09-05

Circuit arrangement and method for operation of a high-pressure discharge lamp below its nominal power

#93
20130181634
2013-07-18

Method and apparatus for synchronous sine wave dimming of luminaries

#94
20130093322
2013-04-18

Ultraviolet lamp system and method for controlling emitted ultraviolet light

#95
20130026938
2013-01-31

Current control discharge lamp system and method for controlling current of discharge lamp

#96
20130026936
2013-01-31

Driving circuit system for gas discharge lamp and the control method thereof

#97
20130020954
2013-01-24

Discharge lamp system and controlling method of the same

#98
20130020953
2013-01-24

Discharge lamp system for constant power control and controlling method of the same

#99
20130020883
2013-01-24

Lighting device operating at different power levels

#100
20130002138
2013-01-03

Amalgam temperature maintaining device for dimmable fluorescent lamps

#101
20120314403
2012-12-13

LONG RANGE MULTI-FUNCTION ILLUMINATION DEVICE AND METHOD OF USE

#102
20120299508
2012-11-29

Xenon lamp drive unit, method for driving xenon lamp, and artificial solar light irradiation unit

#103
20120173894
2012-07-05

Data center

#104
20120147552
2012-06-14

DATA CENTER

#105
20120140415
2012-06-07

DATA CENTER

#106
20120134104
2012-05-31

Data center

#107
20120133302
2012-05-31

High pressure discharge lamp lighting device

#108
20120127656
2012-05-24

Data center

#109
20120050351
2012-03-01

Method for operating a projector having a high-pressure discharge lamp

#110
20120043900
2012-02-23

Method and apparatus for measuring operating characteristics in a load control device

#111
20110279161
2011-11-17

Low frequency oscillator for burst-mode dimming control for CCFL driver system

#112
20110279052
2011-11-17

Variable load line gas curve intercept method to optimize system efficiency

#113
20110266978
2011-11-03

Light output control technique by estimating lamp efficacy as a function of temperature and power

#114
20110234996
2011-09-29

DISCHARGE LAMP UNIT AND PROJECTION TYPE IMAGE DISPLAY APPARATUS USING THE SAME

#115
20110187287
2011-08-04

Ballast configured to compensate for lamp characteristic changes

#116
20110148307
2011-06-23

System and method including self oscillating feedback for acoustic operation of a discharge lamp

#117
20110140625
2011-06-16

METHOD AND SYSTEM FOR OPERATING A HIGH INTENSITY DISCHARGE LAMP

#118
20110127928
2011-06-02

Automatic calibration of an automated dimmer

#119
20110121746
2011-05-26

High-pressure discharge lamp lighting device, high-pressure discharge lamp utilizing the same, projector utilizing said high-pressure discharge lamp, and high-pressure discharge lamp lighting method

#120
20110095698
2011-04-28

Illumination lighting apparatus, illumination apparatus, and illumination system

#121
20110074310
2011-03-31

Discharge lamp lighting apparatus

#122
20110025223
2011-02-03

High pressure discharge lamp ballast and light source apparatus

#123
20100315148
2010-12-16

Low frequency oscillator for burst-mode dimming control for CCFL driver system

#124
20100244730
2010-09-30

Dimming interface for power line

#125
20100201281
2010-08-12

Discharge lamp lighting device, method of driving discharge lamp, and projector

#126
20100165565
2010-07-01

Data center

#127
20100123413
2010-05-20

Methods and systems for controlling the activation of agricultural vehicle lighting

#128
20100084987
2010-04-08

Discharge lamp driving device and method, light source device, and image displaying apparatus

#129
20100060201
2010-03-11

Method of controlling a ballast for a high intensity discharge lamp and related system

#130
20100033103
2010-02-11

Driving device and driving method for discharge lamp, light source device, and image display apparatus

#131
20100007285
2010-01-14

Method and apparatus for curing thin films on low-temperature substrates at high speeds

#132
20090315485
2009-12-24

Lighting fixture control systems and methods

#133
20090295308
2009-12-03

Method for operating high-pressure lamps without hotstarting and luminaire having two high-pressure discharge lamps

#134
20090289581
2009-11-26

High intensity discharge lamp lighting device and lighting fixture

#135
20090278469
2009-11-12

Method of lighting high pressure mercury lamp, lighting device for the same, lamp system and projection display unit

#136
20090251066
2009-10-08

Lighting unit with multiple light sources of a different color temperature

#137
20090225559
2009-09-10

Method and system for automatically controlling power supply to a lamp of a vehicle

#138
20090213336
2009-08-27

Projector using ballast controlled high-pressure discharge lamps

#139
20090184840
2009-07-23

Default configuration for a lighting control system

#140
20090174334
2009-07-09

APPARATUS FOR RADIATING AN OBJECT WITH UV RADIATION

#141
20090153063
2009-06-18

Image display device

#142
20090115974
2009-05-07

High pressure discharge lamp operation method, operation device, light source device, and projection type image display device

#143
20090102398
2009-04-23

Lighting unit, a system comprising it and a control method thereof

#144
20090051643
2009-02-26

BACKLIGHT ASSEMBLY, DISPLAY APPARATUS HAVING THE SAME, METHOD FOR DRIVING THE SAME, AND METHOD FOR DRIVING THE DISPLAY APPARATUS

#145
20090021176
2009-01-22

SEMICONDUCTOR DEVICE

#146
20090015176
2009-01-15

Laser assisted fluorescent lamp

#147
20080297735
2008-12-04

LAMP DRIVING METHOD

#148
20080297061
2008-12-04

HID lighting control with transient voltage sensing and lamp restarting, and method of making and using

#149
20080246927
2008-10-09

Projection display apparatus with a device to measure deterioration in an array light source

#150
20080246417
2008-10-09

Device, system and method for adjusting the luminous flux of a lamp

#151
20080224626
2008-09-18

Optical emission spectrometry device

#152
20080191640
2008-08-14

Stabilizer with brightness control for high intensity discharge lamp

#153
20080185977
2008-08-07

Distributed intelligence ballast system

#154
20080180270
2008-07-31

Distributed intelligence ballast system

#155
20080150441
2008-06-26

POWER SOURCE UNIT FOR DISCHARGE LAMP AND METHOD OF CONTROLLING THE SAME

#156
20080079370
2008-04-03

Energy-conserving devices of illumination systems

#157
20080054823
2008-03-06

Automatic light dimmer for electronic and magnetic ballasts (fluorescent of HID)

#158
20070273304
2007-11-29

High intensity discharge lamp ballast

#159
20070236157
2007-10-11

Discharge lamp lighting apparatus

#160
20070182302
2007-08-09

Light source module

#161
20070164688
2007-07-19

Discharge lamp ignition device and projector

#162
20070159107
2007-07-12

Apparatus and method for controlling discharge lights

#163
20070132704
2007-06-14

System and method for applying power to high intensity discharge lamps

#164
20070091280
2007-04-26

Signal transmission method, signal transmission device, and liquid crystal projector

#165
20070090769
2007-04-26

HID dimming method and apparatus

#166
20070024214
2007-02-01

Illumination source activation based on temperature sensing

#167
20070024208
2007-02-01

Circuit arrangement and method of operating a gas discharge lamp

#168
20060170379
2006-08-03

Vehicle headlamp

#169
20060125426
2006-06-15

Distributed intelligence ballast system and extended lighting control protocol

#170
20060119288
2006-06-08

Automatic light dimmer for electronic and magnetic ballasts (fluorescent or HID)

#171
20060066256
2006-03-30

Method for managing lamp brightness

#172
20050258765
2005-11-24

Arc maintenance device for high density discharge lamps including an adaptive wave form monitor

#173
20050194916
2005-09-08

High-intensity discharge lamp operating device and method for controlling the high-intensity discharge lamp

#174
20050162103
2005-07-28

Method and device for driving a gas discharge lamp

#175
20050093481
2005-05-05

System and method for generating a discharge in high pressure gases

#176
20050077841
2005-04-14

Image projector and method of operating same

#177
20050047831
2005-03-03

Apparatus for reducing warm-up time by auxiliary light source and method for the same

#178
20050001561
2005-01-06

Lighting device

#179
15825944
2019-04-16

Lighting system and method for dynamically regulating driven current to an analog or digital dimming interface

#180
15294657
2017-07-18

Dynamically optimized ballast

#181
15253706
2019-07-16

LED retrofit systems

#182
14486810
2016-03-01

Radio frequency powered gas-filled lamps

#183
13970893
2014-12-23

Method and apparatus for dimming high intensity discharge lamps