| Patents for H05B 37 - Circuit arrangements for electric light sources in general (57,776) |
|---|
| 05/01/1990 | US4922154 Chromatic lighting display |
| 04/25/1990 | EP0364577A1 Disconnection detection apparatus for lamps |
| 04/25/1990 | EP0364466A1 Electrical control apparatus |
| 04/25/1990 | CN2056553U Electronic type lamp switch |
| 04/25/1990 | CN2056481U Multifunction artistic lamps and lanterns |
| 04/24/1990 | USRE33205 Linear analog light-level monitoring system having short leads to reduce electronic noise |
| 04/24/1990 | US4920476 Electronic control for lighting panelboards |
| 04/19/1990 | WO1990004242A1 Supervision and control of airport lighting and ground movements |
| 04/19/1990 | WO1990003900A1 Monitoring circuits for electrical loads, especially for monitoring lamps |
| 04/18/1990 | EP0364161A2 Control circuit of the decorative light sets |
| 04/17/1990 | US4918690 Network and intelligent cell for providing sensing, bidirectional communications and control |
| 04/17/1990 | US4918357 Combination incandescent and solar-electric light bulb with automatic switching device and charging means therefor |
| 04/04/1990 | EP0361993A1 Remote control system, especially for lighting, in spaces incorporating controllable distribution zones with a variable configuration |
| 04/04/1990 | EP0361734A1 Master electrical load control |
| 04/03/1990 | CA1267436A1 Thermal delay light arrangement |
| 03/27/1990 | US4912372 Power circuit for series connected loads |
| 03/22/1990 | WO1990003094A1 Apparatus and device for recording the condition of equipment, such as street lighting, and method of monitoring and servicing street lighting |
| 03/22/1990 | DE3843480A1 Mains-independent (grid-independent) sign |
| 03/21/1990 | EP0359178A2 Load control system |
| 03/08/1990 | WO1990002473A1 Programmable light switch |
| 03/08/1990 | WO1990002472A1 Reduced power switch |
| 03/07/1990 | CN1007119B Ic photoelectric controller of street lamp with variable illuminance |
| 03/01/1990 | DE3828434A1 Programmierbarer lichtschalter Programmable Light Switch |
| 02/28/1990 | EP0355139A1 Stage light system |
| 02/20/1990 | US4903011 Lamp drive circuit |
| 02/20/1990 | US4902936 Light adjusting apparatus |
| 02/20/1990 | US4902906 Security lighting system |
| 02/20/1990 | CA1266083A1 Touch control adaptor |
| 02/14/1990 | CN2053002U Automatic switch controller for photoelectric lamp |
| 02/06/1990 | US4899267 Spotlight and control system therefor |
| 02/06/1990 | US4899089 Time-variable illuminating device |
| 02/06/1990 | CA1265576A1 Transient control circuit for fluorescent lamp systems |
| 02/01/1990 | DE3923022A1 Einbau-dimmerschalter Built-in dimmer switch |
| 01/23/1990 | US4896083 Successible switch activated control circuit |
| 01/23/1990 | CA1264800A1 Boosted d.c. supply circuit and luminaire employing same |
| 01/18/1990 | DE3823788A1 Arrangement for the connection of wall switches in installation systems |
| 01/16/1990 | US4894760 Additive color-mixing light fixture employing a single moveable multi-filter array |
| 01/09/1990 | US4893062 Wall box dimming system and face plate and switch assembly therefor |
| 01/09/1990 | CA1264351A1 Controlling lighting elements in response to ambient light intensity |
| 12/28/1989 | WO1989012950A1 Procedure and apparatus for the control of electric power |
| 12/26/1989 | US4890004 Emergency light control and battery charging system |
| 12/26/1989 | US4890000 Control circuit of the decorative light sets |
| 12/26/1989 | US4889999 Master electrical load control system |
| 12/20/1989 | EP0347317A1 Process and device for detecting failures of at least one light source |
| 12/20/1989 | EP0346405A1 Circuit arrangement for controlling the brightness of a lamp |
| 12/20/1989 | CN2049853U Controller for car licence lamp |
| 12/19/1989 | US4888494 Electromechanical lamp switching |
| 12/13/1989 | EP0345493A1 Arrangement for the surveillance, control and regulation of a technical installation of a building automation system |
| 12/13/1989 | CN2049449U Electricity-saving controller |
| 12/12/1989 | US4886961 Light detector having light sensor and light indicator, and control circuit thereof |
| 12/06/1989 | CN2049059U Electricity saver for road lamp |
| 11/28/1989 | US4884017 Solar powered construction light |
| 11/22/1989 | CN2048270U Lamplight stoboflash control |
| 11/21/1989 | US4882522 Neon circuit malfunction detector |
| 11/14/1989 | US4880950 Control switch |
| 11/08/1989 | EP0340777A1 Driver Circuit |
| 11/08/1989 | CN2047474U Photoelectric controller for light lamp |
| 11/07/1989 | US4879495 Illumination control methods and means |
| 11/01/1989 | CN2047088U Multifunction high-efficiency electric saving automatic controller |
| 10/31/1989 | US4878010 Electric a.c power switch controller and d.c. power supply method and apparatus |
| 10/24/1989 | US4876487 Low voltage illuminating lamp set with programmable output for garden use |
| 10/19/1989 | DE3811496A1 Luminaire having a plurality of light sources of low-voltage halogen lamps |
| 10/10/1989 | US4873469 Infrared actuated control switch assembly |
| 10/05/1989 | WO1989009533A1 Disconnection detection apparatus for lamps |
| 10/04/1989 | CN2045567U High-efficient power saving controller for fluorescent lamp |
| 10/04/1989 | CN2045564U Speaker with music rhythm and festoon lighting |
| 09/27/1989 | EP0334431A2 Circuit arrangement for producing a consumer's pulse supply voltage from a DC voltage |
| 09/26/1989 | US4870325 Ornamental light display apparatus |
| 09/26/1989 | CA1261914A1 Electric generator system for portable floodlighting equipment |
| 09/26/1989 | CA1261019A1 Checking system of warning lamp of a vehicle |
| 09/20/1989 | EP0332783A1 Improved spotlight and control system therefor |
| 09/19/1989 | US4868459 Method of and circuit for brightness and temperature-dependent control of an LCD illuminator |
| 09/12/1989 | US4866345 Vehicle interior lamp shut-off device with particular dimming sequence |
| 09/06/1989 | EP0331508A2 A lighting appliance |
| 09/06/1989 | CN2044033U Light power saving mine lamp |
| 09/05/1989 | CA1259098A1 Hot body intrusion activated light control unit with daylight photocell deactivation override |
| 08/29/1989 | US4862336 Dimorphic truss unit |
| 08/29/1989 | US4862042 Apparatus and method for forming segmented luminosity in gas discharge tubes |
| 08/29/1989 | US4862038 Automatic relamping system |
| 08/29/1989 | US4862012 Electrical switching apparatus |
| 08/24/1989 | WO1989007855A1 Backup electrical system for lamps |
| 08/16/1989 | EP0327602A1 Apparatus and method for forming segmented luminosity in gas discharge tubes. |
| 08/15/1989 | US4857967 Light source device |
| 08/15/1989 | US4857759 Alternating current outlet adapter |
| 08/10/1989 | DE3800839A1 Electronic marten repelling device |
| 08/09/1989 | EP0113744B1 Power graduation system with monoline distribution of the controls and energy |
| 08/09/1989 | CN2042649U Power-saving controller for street-lamp |
| 08/09/1989 | CN2042299U 闪光头盔 Flash Helmet |
| 08/02/1989 | EP0326341A2 Optical detection and control system |
| 08/01/1989 | US4853599 Cycling limiting circuitry and method for electrical apparatus |
| 07/25/1989 | US4851738 Lighting system having photosensing timing switch circuit |
| 07/24/1989 | EP0327602A4 Apparatus and method for forming segmented luminosity in gas discharge tubes. |
| 07/20/1989 | DE3741479A1 Device for measuring, regulating and control the quantity of light |
| 07/19/1989 | EP0324606A1 Multifunctional optoelectronic control apparatus |
| 07/06/1989 | DE3743658A1 Circuit arrangement for an electronic power timing-pulse generator |
| 06/28/1989 | CN2040287U Colour lamp controller |
| 06/27/1989 | US4843525 Solar powered yard marker |
| 06/27/1989 | US4843386 Remote control unit with hierarchical selection |
| 06/27/1989 | US4843283 Infrared ray detector control illumination system |
| 06/20/1989 | US4841164 Light-sensitive switch structure and method with inverse off/on ratio |