ClassID:

233149

H05B31/50 - page 3 - CPC Classification

Classification description:

Electric arc lamps having more than two electrodes specially adapted for ac

Recent Application in this class:
#601
20070138979
2007-06-21

LED illumination unit, projection display device using the same, and method of operating LED illumination unit

#602
20070138966
2007-06-21

Lamp power tabulation

#603
20070127249
2007-06-07

Candle emulation device with fragrance release mechanism

#604
20070120653
2007-05-31

Daylight control system device and method

#605
20070120542
2007-05-31

Pulse signal drive circuit

#606
20070103095
2007-05-10

Switching LED driver with temperature compensation to program LED current

#607
20070097574
2007-05-03

Methods and apparatus for DC-DC converter having independent outputs

#608
20070096561
2007-05-03

Lighting controller for lighting device for vehicle

#609
20070091634
2007-04-26

Light supply unit, illumination unit, and illumination system

#610
20070085489
2007-04-19

Switched constant current driving and control circuit

#611
20070075217
2007-04-05

Backlight module

#612
20070070627
2007-03-29

Decorating with a lighted device

#613
20070069712
2007-03-29

Driving circuit and electronic device using the same

#614
20070069664
2007-03-29

Switched constant current driving and control circuit

#615
20070052375
2007-03-08

Controlling method and system for LED-based backlighting source

#616
20070040512
2007-02-22

Digitally controlled luminaire system

#617
20070035538
2007-02-15

System and method for driving light-emitting diodes (LEDs)

#618
20070030678
2007-02-08

Series wiring of highly reliable light sources

#619
20070018594
2007-01-25

Holiday light string devices

#620
20070013557
2007-01-18

Lighting apparatus for navigational aids

#621
20060255705
2006-11-16

LED strobe light

#622
20060232969
2006-10-19

Illumination device having luminous spots formed by light emitting diodes

#623
20060215345
2006-09-28

Wireless network control for building lighting system

#624
20060208653
2006-09-21

Circuit improvements for solar lamps

#625
20060192728
2006-08-31

LED driver

#626
20060187236
2006-08-24

Control interface for converting subtractive color input to additive primary color output

#627
20060175986
2006-08-10

LED array driving apparatus and backlight driving apparatus using the same

#628
20060158137
2006-07-20

Flickering control device for personal articles

#629
20060158130
2006-07-20

Illumination apparatus and image display apparatus

#630
20060145670
2006-07-06

Output current and input power regulation with a power converter

#631
20060145636
2006-07-06

Reversible polarity LED lamp module using current regulator and method therefor

#632
20060139267
2006-06-29

Light-emitting element driving apparatus

#633
20060132063
2006-06-22

Method and apparatus for controlling driving current of illumination source in a display system

#634
20060119291
2006-06-08

Method and apparatus for controlling driving current of illumination source in a display system

#635
20060109205
2006-05-25

High Efficiency multi-mode charge pump based LED driver

#636
20060108933
2006-05-25

Light emitted diode driving apparatus

#637
20060087841
2006-04-27

LED luminaire with feedback control

#638
20060071613
2006-04-06

Light-emitting diode lighting device comprising a communication device and installation comprising one such device

#639
20060056178
2006-03-16

Color correction of LCD lighting for ambient illumination

#640
20060043911
2006-03-02

Method and circuit for driving a low voltage light emitting diode

#641
20060038803
2006-02-23

LED control method and structure therefor

#642
20060022614
2006-02-02

Dynamic color mixing LED device

#643
20060018118
2006-01-26

Spectrum matching

#644
20060012349
2006-01-19

FET current regulation of LEDs

#645
20060007013
2006-01-12

White anti-collision light utilizing light-emitting diode (LED) technology

#646
20060001381
2006-01-05

Switched constant current driving and control circuit

#647
20050269956
2005-12-08

Circuit arrangement for operating at least one light-emitting diode

#648
20050263680
2005-12-01

Method for stabilizing the temperature dependency of light emission of an LED

#649
20050248935
2005-11-10

Tiled flat panel lighting system

#650
20050243556
2005-11-03

Lighting system and method

#651
20050243041
2005-11-03

Light emitting diode driver circuit

#652
20050242749
2005-11-03

Circuitry and methods for improving the performance of a light emitting element

#653
20050226003
2005-10-13

Backlight module and display device utilizing the same

#654
20050202851
2005-09-15

Drive control circuit, emission control circuit, communication apparatus and drive control method

#655
20050200617
2005-09-15

Display device and driving method thereof

#656
20050200290
2005-09-15

Illumination apparatus and image projection apparatus using the apparatus

#657
20050174777
2005-08-11

Sensor-activated audible story lamp

#658
20050168419
2005-08-04

Light emitting diode driving circuit and optical transmitter for use in optical fiber link

#659
20050168168
2005-08-04

Light dimmer for LED and incandescent lamps

#660
20050162096
2005-07-28

Wide input voltage range light emitting diode driver

#661
20050156531
2005-07-21

LED strobe light

#662
20050135104
2005-06-23

Marine LED lighting system and method

#663
20050122065
2005-06-09

Dynamic color mixing LED device

#664
20050117367
2005-06-02

Light-emitting semiconductor device pulse drive method and pulse drive circuit

#665
20050117190
2005-06-02

Light emitting device and display apparatus and read apparatus using the light emitting device

#666
20050093488
2005-05-05

Method and apparatus for controlling driving current of illumination source in a display system

#667
20050088209
2005-04-28

Switching device for driving LED array by pulse-shaped current modulation

#668
20050088207
2005-04-28

Method and apparatus for driving LED's

#669
20050062446
2005-03-24

Control system for an illumination device incorporating discrete light sources

#670
20050047031
2005-03-03

Lighting control apparatus for vehicles

#671
20050030192
2005-02-10

Power supply for LED airfield lighting