| Patents for H05B 37 - Circuit arrangements for electric light sources in general (57,776) |
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| 04/21/1992 | US5107184 Remote control of fluorescent lamp ballast using power flow interruption coding with means to maintain filament voltage substantially constant as the lamp voltage decreases |
| 04/18/1992 | CA2053354A1 Circuit arrangement |
| 04/16/1992 | DE4032658A1 Fail=safe medical code light projector - uses regulator for automatic switching in of back=up lamp upon failure of main lamp |
| 04/14/1992 | US5105124 Lamp failure detecting device |
| 04/08/1992 | EP0479112A2 Programmable emergency signalling device and system |
| 04/07/1992 | US5103380 Christmas tree light apparatus |
| 04/07/1992 | US5103137 Anti-cycling device for high pressure sodium lamps |
| 04/02/1992 | WO1992005616A1 Improvements in electrical load controllers |
| 04/02/1992 | WO1992005615A1 Improvements in electrical zone load controllers |
| 04/02/1992 | WO1992005612A1 Photovoltaic system for airport lighting |
| 04/02/1992 | WO1992005608A1 Semiconductor laser diode controller and laser diode biasing control method |
| 04/01/1992 | EP0191838B1 A dimmer power stage |
| 03/24/1992 | US5099402 Handrail illumination system |
| 03/24/1992 | US5099193 Remotely controllable power control system |
| 03/24/1992 | US5099177 Lamp circuit with disconnected lamp detecting device |
| 03/19/1992 | WO1992004758A1 Improved communications and testing for emergency lighting systems |
| 03/18/1992 | EP0475082A1 Microprocessor controlled lamp flashing system |
| 03/10/1992 | US5095502 System for the detection and localization of defective lamps of an urban lighting network |
| 03/04/1992 | CN2097952U Long-life energy-saving signal lamp for mine |
| 03/03/1992 | CA1296758C Apparatus for limiting surge currents in dc-illuminated incandescent lamp |
| 02/26/1992 | EP0471690A1 Location marker |
| 02/26/1992 | CN2097495U Household remote-controller for electric lamp |
| 02/26/1992 | CN2097494U Light guide controller for road lamp |
| 02/25/1992 | US5091678 Table lamp controlling device |
| 02/25/1992 | US5091677 Lighting control system for pinball games |
| 02/20/1992 | WO1992002981A1 Procedure for the control of an electric device |
| 02/19/1992 | EP0471215A1 Remote control of fluorescent lamp ballast |
| 02/19/1992 | CN1015592B Electronic equipment for control of fluorescent lamps |
| 02/18/1992 | US5089753 Arrangement for predicting failure in fluorescent lamp systems |
| 02/12/1992 | EP0470943A1 Procedure for detecting breakdowns in street lighting |
| 02/12/1992 | CN2096186U Remote control lamp cap |
| 02/06/1992 | WO1992001968A1 Multi-mode remote control system |
| 02/05/1992 | EP0470034A2 Information transmission system of the state of loads connected to an electric line |
| 01/31/1992 | WO1992002887A1 Control apparatus for use in a dwelling |
| 01/31/1992 | CA2088506A1 Control apparatus for use in a dwelling |
| 01/22/1992 | CN2094107U 多点控制开关 Multi-point control switch |
| 01/21/1992 | US5083064 Lamp modulating circuitry for incandescent and fluorescent lamps |
| 01/15/1992 | EP0466245A2 Circuit arrangement |
| 01/15/1992 | EP0465612A1 Circuit arrangement with at least one light-emitting source. |
| 01/15/1992 | CN2093495U Electronic neon lamp |
| 01/15/1992 | CN2093494U Capacitive type luminous diode indicator lamp |
| 01/15/1992 | CN2093493U A c faint light lamp |
| 01/15/1992 | CN2093471U Series type infrared controlled switch |
| 01/10/1992 | CA2046367A1 Circuit arrangement |
| 01/09/1992 | WO1992000579A1 System for detecting the condition of a lamp and activating a permanent memory two-state display of the lamp condition |
| 01/08/1992 | EP0464060A1 Switch means incorporating slave relays |
| 01/07/1992 | US5078039 Microprocessor controlled lamp flashing system with cooldown protection |
| 01/07/1992 | CA2020591A1 Lighting control system and module |
| 01/07/1992 | CA1293989C Computer controlled lighting system with distributed processing |
| 01/02/1992 | EP0463725A2 Display indicator and reed switch |
| 01/02/1992 | EP0463687A2 Power control circuit arrangement with low feedback to mains |
| 01/01/1992 | CN2092166U Multi-terminal control switch |
| 12/31/1991 | US5077484 Light controlled extension socket |
| 12/31/1991 | CA1293767C Programmable multicircuit wall-mounted controller |
| 12/26/1991 | WO1991020171A1 Light source control method and device |
| 12/24/1991 | US5075672 System for detecting the condition of a lamp and activating a permanent memory two-state display of the lamp condition |
| 12/18/1991 | CN2091043U Dual-purpose switch controlled by touch and telecontrol |
| 12/12/1991 | WO1991019412A1 Solar lamp |
| 12/05/1991 | DE4017392A1 Power monitor for LV lighting system - disconnects supply transformer secondary upon indication of overload or short circuit condition |
| 12/04/1991 | EP0459923A1 Device for supervising lighting system in lighting networks, especially in street lighting networks |
| 12/04/1991 | EP0459090A1 Device for independent conservation of the continuity of light signals or similar lighting installations |
| 11/27/1991 | EP0458155A2 Monitoring process and device for parallel connected lamps |
| 11/19/1991 | US5066898 Multi-way switch system having plural remote touch pads |
| 11/12/1991 | US5065036 Light detection and control system |
| 11/07/1991 | DE4014054A1 Remote controlled lighting system - uses remote-control signal for individual brightness control of each light source |
| 11/06/1991 | CN2088314U Anti-jamming light-controlling energy-saving switch |
| 11/01/1991 | CA2015883A1 Computer controlled light with continuously variable colour temperature, colour modification, focus and position |
| 10/30/1991 | EP0453659A1 Apparatus for picking-up and transmitting failure signals in installations comprising several lamps in parallel, especially for public lighting systems |
| 10/29/1991 | US5061997 Control of visible conditions in a spatial environment |
| 10/23/1991 | EP0453006A1 Safety signalling system for communication paths |
| 10/23/1991 | CN2087413U Luminous device with auto-controlling function |
| 10/22/1991 | US5059871 Programmable lighting control system linked by a local area network |
| 10/17/1991 | DE4010596A1 Safety circuit for lighting - has action of door used to control activation of lighting circuit |
| 10/16/1991 | CN2086960U Energy-saving electronic timing switch for street lamps |
| 10/10/1991 | DE4011037A1 Traffic light system using solar energy - uses solar powers providing power in day and short wave radio signals to coordinate lights |
| 10/09/1991 | EP0450261A1 Light control for an electric switch |
| 10/08/1991 | CA1290439C Cover and support plate arrangement for wall mounted devices |
| 10/08/1991 | CA1290385C Programmable light activated emergency marking system |
| 10/01/1991 | US5053680 Switching device |
| 09/26/1991 | DE4009389A1 Solar-operated warning light for road traffic - has battery charged via solar cells during daylight for operation of light at night |
| 09/26/1991 | DE4009363A1 Incandescent lighting system with singly operable distributed sources - connected to common two=wire line with encoded IR-responsive circuits for gp. switching and dimming |
| 09/25/1991 | EP0448358A2 Lamp Failure detection system |
| 09/25/1991 | EP0364466A4 Electrical control apparatus |
| 09/25/1991 | CN2085589U Electricity-saving lamp |
| 09/24/1991 | US5051607 Switch time delay apparatus |
| 09/24/1991 | US5050325 Display indicator and reed switch |
| 09/22/1991 | CA2038699A1 Elevator call button/annunciator assembly and circuit |
| 09/18/1991 | EP0447136A2 A method for automatic switching and control of lighting |
| 09/17/1991 | CA1289183C Power regulator, in particular for airport lighting |
| 09/11/1991 | EP0445773A2 Lamp circuit with disconnected lamp detecting device |
| 09/11/1991 | EP0445757A2 Electric discharge lamp unit |
| 09/04/1991 | EP0444636A2 A system for remotely controlling a plurality of lighting equipments |
| 09/04/1991 | EP0444635A1 Illumination control apparatus |
| 09/03/1991 | US5045983 Computer controlled light with continuously variable color temperature, color, magnification, focus, and position |
| 08/28/1991 | EP0393117A4 Protocol for network having a plurality of intelligent cells |
| 08/22/1991 | WO1991012704A1 Centralized device for displaying defective locations of lighting fixtures and method of collecting information on defect |
| 08/22/1991 | WO1991012599A1 Control unit |
| 08/21/1991 | EP0442506A2 Image reading device |
| 08/21/1991 | CN2083382U Automatic opening and closing current limiter of optical-control lights |
| 08/14/1991 | EP0441253A1 Electronic ballast for gas discharge lamp |