| Patents for H05B 37 - Circuit arrangements for electric light sources in general (57,776) | 
|---|
| 08/14/1991 | EP0440862A1 Remotely-controllable lightswitch or button | 
| 08/08/1991 | WO1991011896A1 Circuit arrangement with at least one light-emitting source | 
| 08/08/1991 | DE4003581A1 Infrared-controlled contactless dimmer switch with threshold circuit - operating on integrated output from LED-photodiode link via reflecting surface with range of several centimetres | 
| 08/06/1991 | US5038079 Method for controlling fluorescent lamp dimmers and circuit for providing such control | 
| 08/01/1991 | DE4002597A1 Timer arrangement for stairs lighting | 
| 08/01/1991 | DE4002485C1 Protecting LV lighting systems independently of load - using comparator, timer, max. power adjuster and recorder for amt. of dimming | 
| 08/01/1991 | DE4001811A1 Controlling intensity of individual halogen lamps in installation - using IR radiation to carry digital addresses and commands to receivers in lamps | 
| 07/31/1991 | EP0438500A1 Monitoring circuits for electrical loads, especially for monitoring lamps. | 
| 07/25/1991 | WO1991011088A1 Time enabled photosensing circuit | 
| 07/25/1991 | CA2073173A1 Time enabled photosensing circuit | 
| 07/24/1991 | EP0438100A1 Touch initiated light module | 
| 07/23/1991 | US5034659 Lamp circuit with disconnected lamp detecting device | 
| 07/18/1991 | CA2034284A1 Touch initiated light module | 
| 07/16/1991 | US5032961 Ground light system for a landing strip | 
| 07/16/1991 | US5032766 Special effects generator | 
| 07/16/1991 | CA1286353C Ignitor disabler | 
| 07/11/1991 | WO1991010276A1 Control system for several consumers | 
| 07/11/1991 | DE4000108A1 Low voltage lamp overheating protector - compares lamp current with set manned current and set deviation outside given range | 
| 07/10/1991 | CN1052983A Method for controlling fluorescent lamp dimmers and circuit for providing such control | 
| 07/09/1991 | US5031082 Remotely controlled security lighting | 
| 07/09/1991 | US5030893 Wall box dimming system and face plate and switch assembly therefor | 
| 07/09/1991 | US5030890 Two terminal incandescent lamp controller | 
| 07/04/1991 | DE3943305A1 Outdoor fluorescent-lamp switch shielded from direct light - is switched by in-built phototransistor extra sensitive to longer visible and IR wavelengths | 
| 07/03/1991 | EP0435597A2 Integrated power level control and on/off function circuit | 
| 07/03/1991 | EP0435224A2 Remote supervisory and controlling system performing dimming control of light loads | 
| 07/03/1991 | EP0434859A1 Device for checking the correct working of an incandescent lamp | 
| 07/03/1991 | CN2080283U Infrared circular controller for multi-way lighting lamp | 
| 07/03/1991 | CN2080282U Optical and sound controlled timed switch for low voltage electric apparatus | 
| 06/27/1991 | CA2029434A1 Integrated power level control and on/off function circuit | 
| 06/26/1991 | EP0433527A1 Control arrangement for several consumers | 
| 06/25/1991 | US5027052 Circuit arrangement for generating a pulsatory supply voltage for a load from a direct voltage | 
| 06/25/1991 | US5027037 Controller for continuous tracing lights | 
| 06/19/1991 | EP0432845A2 Method for controlling fluorescent lamp dimmers and circuit for providing such control | 
| 06/19/1991 | CN2079399U Multi-purpose lamp | 
| 06/18/1991 | US5025195 Current monitoring | 
| 06/13/1991 | WO1991008635A1 Remotely controlled security lighting | 
| 06/13/1991 | DE4035389A1 Modulation system for laser printer - has lighting level monitored and used to to provide correcting action to input | 
| 06/13/1991 | DE3940936A1 Garage door control with relay for lamp switching - operated by interior lighting current so that exterior lighting is activated with suitable duration | 
| 06/12/1991 | CA2031809A1 Method for controlling fluorescent lamp dimmers and circuit for providing such control | 
| 06/11/1991 | US5023709 Automatic follow-up lighting system | 
| 06/11/1991 | US5023517 Light controller apparatus | 
| 06/05/1991 | EP0430836A1 Remote control carrier communication system | 
| 06/05/1991 | EP0430792A1 Improvement of multiplexed control devices for a unit of electrical elements in a motor vehicle | 
| 06/05/1991 | EP0388436A4 Network and intelligent cell for providing sensing, bidirectional communications and control | 
| 05/29/1991 | CN2078065U Lamp with double switch for spyhole | 
| 05/28/1991 | US5019769 Semiconductor laser diode controller and laser diode biasing control method | 
| 05/28/1991 | US5019751 End-of-life lamp starter disabling circuit | 
| 05/28/1991 | US5019747 Illumination control apparatus | 
| 05/23/1991 | DE4032410A1 Electrical light supply - has voltage reduced by diode, inductance or thyristor circuit to improve operational life | 
| 05/23/1991 | DE3938532A1 Safety flashlight - has rechargeable batteries and is activated of mains fails to indicate location | 
| 05/23/1991 | DE3938251A1 Mains independent electrical lighting system - has solar energy charged batteries with sensors to control lighting activation | 
| 05/21/1991 | US5018138 Protocol for network having a plurality of intelligent cells | 
| 05/21/1991 | US5018057 Touch initiated light module | 
| 05/21/1991 | US5017837 Indicator lamp system | 
| 05/18/1991 | CA2030045A1 Mains-independent lighting equipment | 
| 05/15/1991 | CN2077172U Touching delay-action circduit breaker with display in room | 
| 05/14/1991 | US5015994 Security light controlled by motion detector | 
| 05/08/1991 | DE3936483A1 Attaining blinking sequency for at least two lights - installed in series with activated lamp sending control signal to following one | 
| 05/07/1991 | US5013972 Dual-powered flickering symbolic or religious light (electronic yahrzeit) | 
| 05/01/1991 | CN2076287U Wireless intelligence street lamp monitor | 
| 04/30/1991 | US5012160 Accordion mount for solar cells including point-of-purchase display with leds | 
| 04/25/1991 | CA2007783A1 Circuit device for the automatic control of an entry light | 
| 04/24/1991 | EP0424283A1 Control device for a remote control interrupter | 
| 04/23/1991 | US5010460 Waterscape lamp with shade of proximity-capacitance-sensing type device | 
| 04/23/1991 | US5010459 Console/lamp unit coordination and communication in lighting systems | 
| 04/17/1991 | CN2075404U Universal photoelectric auto-switch | 
| 04/16/1991 | US5008865 Light source with gradually changing intensity | 
| 04/16/1991 | US5008595 Ornamental light display apparatus | 
| 04/10/1991 | EP0420901A1 Procedure and apparatus for the control of electric power. | 
| 04/10/1991 | CN2074962U Lighting device safety controllor | 
| 04/09/1991 | US5006724 Control device for light sets | 
| 04/04/1991 | WO1991004648A1 Circuit for compensating the capacitive effect of a connection of a low-voltage lamp on the secondary side | 
| 04/04/1991 | WO1991004647A1 Field lighting installation | 
| 04/02/1991 | US5004972 Integrated power level control and on/off function circuit | 
| 04/02/1991 | US5004957 Dimming control circuit | 
| 03/19/1991 | US5001398 Lamp intensity control system having over-current protection | 
| 03/15/1991 | CA2023843A1 System for creating comfortable space | 
| 03/12/1991 | US4999544 Tree hung ornamental dimmer | 
| 03/07/1991 | DE3928801A1 Contact breaker protection of low voltage halogen lamps - having monitored current compared with threshold valve to control supply to lamp | 
| 03/06/1991 | EP0415662A2 An arrangement for supervising the condition of a safety light system | 
| 03/06/1991 | EP0415621A2 Communication system for single point emergency lighting | 
| 03/01/1991 | CA2020090A1 Communication system for single point emergency lighting | 
| 02/28/1991 | DE3927496A1 Motorcycle lighting installation circuitry - provides automatic switching form dipped to main beam upon failure using triac | 
| 02/27/1991 | CN2072304U Light controlled mini sleeping lamp | 
| 02/27/1991 | CN2072303U Thyristor energy saving switch | 
| 02/26/1991 | US4996463 Auxiliary lighting system for high intensity discharge lamp | 
| 02/21/1991 | WO1991002441A1 Process for adapting the light intensity of summation light to external light | 
| 02/21/1991 | WO1991002336A1 Stage programmable light sequencer for a toy | 
| 02/19/1991 | US4995026 Apparatus and method for encoding audio and lighting control data on the same optical disc | 
| 02/13/1991 | CN2071411U Light controller for road lamps | 
| 02/10/1991 | CA2019547A1 Stage programmable light sequencer for a toy | 
| 02/05/1991 | USH891 Automatic illumination switching device | 
| 02/05/1991 | US4991054 Time-delay outdoor lighting control systems | 
| 02/05/1991 | US4990908 AC wire | 
| 02/05/1991 | CA1279891C Universal synchronous marine navigation light system | 
| 01/30/1991 | EP0410484A1 Process for adapting the total light intensity to the outside light intensity | 
| 01/30/1991 | EP0410434A2 Lighting remote monitor/control system | 
| 01/29/1991 | US4988924 Circuit arrangement for controlling the brightness of a lamp | 
| 01/29/1991 | US4988921 Lamp with integral automatic light control circuit | 
| 01/29/1991 | US4988840 A safety device |