Patents
Patents for H05B 43 - Circuit arrangements for light sources, not otherwise provided for (158)
10/1996
10/26/1996CA2147778A1 Light emitting diode lamp
08/1996
08/17/1996CA2142629A1 High power, high pulse repetition frequency, compact, pulsed laser diode driver
08/17/1996CA2142628A1 High power, high pulse repetition frequency, compact, pulsed laser diode driver
04/1996
04/09/1996US5506826 Life span detector for a laser diode and a compact disk player having the same
11/1995
11/18/1995CA2123765A1 Low voltage door activated light switch
09/1995
09/04/1995CA2142132A1 Methods and apparatus for illumination of signs utilizing light emitting diodes
10/1994
10/05/1994EP0617852A1 Apparatus and method for controlling an extinction ratio of a laser diode over temperature
07/1994
07/20/1994CA2092762A1 Life span detector for a laser diode and a compact disk player having the same
07/1993
07/08/1993CA2126323A1 Apparatus and method for controlling an extinction ratio of a laser diode over temperature
12/1990
12/26/1990CN2067981U Cinerary casket with colour lamp ornament
07/1989
07/27/1989DE3642890A1 Electronic, cable-independent lamp chain for decorative purposes
11/1988
11/23/1988CN88200347U Electronic signal lamp for railway
06/1988
06/16/1988DE3641396A1 Electronic lamp chain for decorative purposes
04/1988
04/13/1988CN87205168U Projective lamps and lanterns of colour image of automatic control
04/06/1988CN87210435U Controller for fluorescent lamp and incandescent lamp
02/1988
02/10/1988CN86206759U Colour-changeable rotating decorative lamp
11/1986
11/19/1986CN85104028A Fluorescent picture-element tube with high brightness
11/1984
11/27/1984CA1178646A1 Photoflash lamp array circuit board having radiation sensitive fuse elements
11/13/1984CA1177874A1 Photoflash lamp array circuit board having radiation sensitive fuse elements
11/06/1984CA1177522A1 Flash lamp array circuit with improved fuse means
11/06/1984CA1177521A1 Flash lamp array having printed circuit
11/06/1984CA1177520A1 Flash lamp array having combined shield and connector
10/1984
10/30/1984CA1177110A1 Flash lamp array having printed circuit
10/23/1984CA1176697A1 Conductive ink for flash lamp array circuit
10/23/1984CA1176696A1 Flash lamp array having composite circuit board and electric shield member
09/1984
09/18/1984CA1174725A1 Conductive ink for flash lamp array circuit
09/11/1984US4470801 Photoflash unit with circuit pattern for redundant switching of lamps
09/04/1984CA1173809A1 Sequential photoflash array and fabrication employing radiation-activated switches
05/1984
05/15/1984US4449073 Runway approach lighting system with fault monitor
02/1984
02/07/1984CA1161897A1 Photoflash unit with circuit pattern for redundant switching of lamps
02/07/1984CA1161811A1 Photoflash unit with circuit board radiation switches for selective pairing of lamps
08/1983
08/09/1983CA1151720A1 Multiple flash arrangement with redundant fuse arrangement
06/1983
06/22/1983EP0081735A1 Photoflash unit with circuit pattern for redundant switching of lamps
06/14/1983US4388606 Sequential photoflash array and fabrication employing radiation-activated switches
06/14/1983US4388065 Actinically comustible metal strips and an oxidizing gas
02/1983
02/01/1983US4371914 Photoflash unit with circuit board radiation switches for selective pairing of lamps
12/1982
12/14/1982US4363622 Combustion flashbulb
10/1982
10/20/1982EP0062885A1 Radiation-activated switch
10/20/1982EP0062884A1 Sequential photoflash array and fabrication employing radiation-activated switches
08/1982
08/03/1982US4342947 Light indicating system having light emitting diodes and power reduction circuit
02/1982
02/09/1982CA1118036A1 Multilamp photoflash unit with more reliable circuit arrangement
01/1982
01/05/1982US4309166 Combustion flashbulb
07/1981
07/21/1981CA1105428A1 Photoflash unit with secured insulator
02/1981
02/03/1981CA1095115A1 Electric multiple flash arrangement
11/1980
11/25/1980CA1090410A1 Photographic flashlamp unit
07/1980
07/08/1980US4211956 Light indicating system having light emitting diodes and power reduction circuit
07/08/1980US4211955 Solid state lamp
05/1980
05/27/1980US4204834 Leadless electric flash lamp
03/1980
03/18/1980CA1073878A1 Photoflash lamp array having conductive reflector
01/1980
01/15/1980US4183647 Electronic flash apparatus
01/08/1980US4182977 Constant output light emitting device
10/1979
10/02/1979US4170034 Multilamp photoflash unit with more reliable circuit arrangement
05/1979
05/15/1979US4154569 Flashlamp unit
05/01/1979US4152751 Photoflash unit with secured insulator
10/1978
10/10/1978CA1040173A1 Multiple flash lamp unit
08/1978
08/01/1978US4104706 Photoflash lamp array having conductive reflector
01/1978
01/10/1978US4068148 Constant current driving circuit
04/1976
04/20/1976US3952320 Multiple flash lamp unit
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