| Patents for H05B 37 - Circuit arrangements for electric light sources in general (57,776) |
|---|
| 06/01/1994 | CN1087461A Sound-controlled lamp |
| 06/01/1994 | CN1087436A Combination display cacklight and light sensor |
| 05/31/1994 | US5317238 Electromagnetic field sensitive animated ornamental display |
| 05/26/1994 | WO1994012005A1 Console for controlling stage lighting system |
| 05/26/1994 | DE4330114A1 Control circuitry for several discharge lamps - has central control unit with bus connector to ballasts with Zener diode overvoltage protection for transmit/receive branches |
| 05/25/1994 | CN2166574Y Multi-function lighting controller |
| 05/10/1994 | US5311101 Lighting failure detector for a luminaire |
| 05/05/1994 | DE4236618A1 False alarm prevention device for infrared movement detector - has processor which generates alarm control signal only with occurrence of signal from external light sensor, when path of electrical signals from infrared detector deviates from preset course |
| 05/04/1994 | CN1086371A Variable color luminaire |
| 05/03/1994 | US5309067 Cascade lighting system |
| 04/28/1994 | DE4235857A1 Heat sensitive door safety device - actuates acoustic signal to firmly indicate possible danger to door by exposure to heat radiation from lamp |
| 04/26/1994 | US5307295 Creating and controlling lighting designs |
| 04/21/1994 | DE4331378A1 Lighting current circuit for motor vehicle discharge lamp - detects lamp voltage or equivalent signal to disconnect power supply when lamp is flickering |
| 04/14/1994 | WO1994008438A1 Process and device for monitoring an incandescent lamp, especially in dark condition |
| 04/14/1994 | WO1994008437A1 Stage lighting lamp unit and stage lighting system including such unit |
| 04/14/1994 | DE4233995A1 Time switch e.g. for staircase light - has period of normal illumination, then one of lower or alternating illumination, before final extinguishing |
| 04/14/1994 | DE4233664A1 Alarm system using halogen floodlight - has floodlight with housing having emitter connected to current supply, protects outside areas and triggers alarm on unauthorised tampering of floodlight |
| 04/13/1994 | EP0591899A1 Automatic control system for lighting projector |
| 04/13/1994 | CN2162040Y Infrared telecontrol device |
| 04/05/1994 | US5300864 Programmable lighting control system |
| 03/31/1994 | DE4232618A1 Operating method for controls of street lamps, surface lights for airports, fog warning lights, two=way traffic lane lights - individually controlling lamps by remote switch command from sector station with transmission and receiving part and control computer |
| 03/30/1994 | CN2160057Y Multi-colour changing colour light |
| 03/24/1994 | DE4231062A1 Protecting load from electrical instabilities - providing phase gate control for load with current monitor and preset optimum load conditions for each phase angle |
| 03/23/1994 | EP0587758A1 Low pressure xenon lamp and driver circuitry for use in theatrical productions and the like |
| 03/16/1994 | CN2158963Y Vibrating-type light flashing device |
| 03/15/1994 | US5294849 Reflexive circuit |
| 03/09/1994 | EP0586322A1 Device for detecting and signalling faulty lamps in a lighting network |
| 03/09/1994 | EP0586049A2 Thermal management techniques for lighting instruments |
| 03/09/1994 | CN2158490Y Lamp for computer with natural light |
| 03/09/1994 | CN1083572A Luminaire of variable color temperature |
| 03/08/1994 | US5293097 Fully automatic energy efficient lighting control and method of making same |
| 03/03/1994 | DE4324779A1 Signal display indicating malfunction of bicycle's lamps - has green LED electrically in series with rear lamp and mounted on headlamp casing |
| 03/02/1994 | EP0584886A1 Variable color luminaire |
| 03/02/1994 | CN2157895Y Multi-function automatic variable light device for lamp of vehicle |
| 03/02/1994 | CN1083302A Light regulator |
| 03/01/1994 | US5291299 Power supply and control unit for a light system and a lighting unit for the light system |
| 02/24/1994 | DE4227827A1 Distributed signal lamp power supply and control system - uses microprocessor control and voltage sensors to deliver constant power to lamps and indicate failures |
| 02/22/1994 | US5289355 Portable lighted microphone |
| 02/16/1994 | CN1082304A Control apparatus of fluorescent lamp |
| 02/16/1994 | CN1082303A Automatic continuous light regulator |
| 02/09/1994 | EP0582287A2 On-off and intensity remote control of lighting systems by means of power line carrier waves |
| 02/09/1994 | CN2155650Y Integrated protecting device for kilovolt illumination signal in coal mine |
| 02/03/1994 | WO1994002919A1 Automatic control system of lights in a series circuit illumination plant, in particular lights for airport signalling |
| 02/03/1994 | CA2140759A1 Automatic control system of lights in a series circuit illumination plant, in particular lights for airport signalling |
| 02/02/1994 | EP0581555A1 Programmable switching unit |
| 02/02/1994 | CN2154956Y Induction on/off lighting device |
| 02/02/1994 | CN2154805Y Automotive night meeting and overtaking light controller |
| 01/28/1994 | CA2101283A1 Programmable switching unit |
| 01/27/1994 | DE4224585A1 Circuit for simulating characteristic of flashing direction indicators - alerts driver to malfunction of flasher unit irrespective of which of two alternative voltages of power supply is operative |
| 01/25/1994 | US5280742 Musical drum with lighting effects |
| 01/20/1994 | DE4222994A1 Lighting installation for connection to small generator, e.g. bicycle dynamo - includes light-emitting diode switched by field effect transistor to storage capacitor when rectifier bridge output falls |
| 01/19/1994 | EP0579489A1 A security device |
| 01/18/1994 | US5280220 Remote controlled, solar and battery powered lights |
| 01/13/1994 | DE4222527A1 LV halogen lighting installation with selective switching - is operated by control signal transmission via opto-electronic converter and one conductor of power supply pair |
| 01/12/1994 | EP0393117B1 Protocol for network having a plurality of intelligent cells |
| 01/12/1994 | CN2153196Y Low-power consumption display monitoring switch |
| 01/11/1994 | US5278536 Electromagnetic radiation node for use in a network and lighting element incorporating such a node |
| 01/05/1994 | EP0577045A1 Smoke detecting apparatus for fire alarm |
| 01/05/1994 | EP0576991A2 Control apparatus of fluorescent lamp |
| 01/05/1994 | DE4224243C1 Load monitoring and cut=out circuitry - detects voltage drop across measuring resistor to control variable resistance in series with current load |
| 01/05/1994 | CN2152364Y Wireless monitor for road lamp |
| 01/05/1994 | CN2152347Y Automatically closing power saving switch |
| 12/29/1993 | EP0576098A2 System of transmission of information about the state of loads connected to an electric line |
| 12/29/1993 | EP0367761B1 Backup electrical system for lamps |
| 12/29/1993 | EP0303700B1 Optical disk |
| 12/28/1993 | US5274611 Apparatus and method for estimating the expired portion of the expected total service life of a mercury vapor lamp based upon the time the lamp is electrically energized |
| 12/28/1993 | CA1325667C Electrical control apparatus |
| 12/22/1993 | EP0574993A1 Luminaire of variable color temperature |
| 12/22/1993 | EP0574540A1 Solar powered lamp utilizing cold cathode fluorescent illumination and method of facilitating same. |
| 12/22/1993 | EP0574439A1 Monitoring apparatus and system. |
| 12/22/1993 | CN1079858A Automatic electric-saving voltage-stabilizing controller for road lamp |
| 12/21/1993 | US5272418 Time enabled photosensing circuit |
| 12/15/1993 | EP0573932A2 Television with lamp supplied in alternating current being of variable frequency |
| 12/15/1993 | CN2149549Y Light controlling arrangement of infrared ray induction type |
| 12/15/1993 | CN1079567A Device for controlling electric load |
| 12/14/1993 | US5270619 Novelty inert gas device having separable components |
| 12/09/1993 | DE4218256A1 Control circuit for individually switchable light sources - includes twilight threshold-setting switch and reversal relay for signal applied to current surge switch via sweep relay |
| 12/08/1993 | EP0573323A2 Method and apparatus for monitoring the operating condition of lamps in a public lighting network |
| 12/08/1993 | CN2149080Y Electric controller for illuminating lamplight |
| 11/30/1993 | US5266840 Circuit for detecting the failure of a load which is connected in series with an electronic switch |
| 11/25/1993 | WO1993023977A1 Lighting arrangement with variable luminous intensity and colour |
| 11/25/1993 | WO1993023973A1 An arrangement for activating and deactivating light generating means |
| 11/25/1993 | WO1993023842A1 Combination display backlight and light sensor |
| 11/25/1993 | CA2136081A1 Lighting arrangement with variable luminous intensity and colour |
| 11/25/1993 | CA2135801A1 Combination display backlight and light sensor |
| 11/24/1993 | CN2147707Y Lamp switch controlled by photo and object |
| 11/17/1993 | CN2146830Y Automatic lighting controller |
| 11/16/1993 | US5262678 For controlling electrical power to a load |
| 11/11/1993 | WO1993022755A1 Surveillance and alarm device for room spaces |
| 11/09/1993 | CA1324185C System for lighting fluorescent lamps |
| 11/03/1993 | CN2145489Y Board type energy-saving, light regulating switch for fluorescent lamp |
| 10/28/1993 | WO1993021746A1 Programmable remote control systems for electrical apparatuses |
| 10/28/1993 | WO1993021745A1 Apparatus for controlling electrical loads |
| 10/28/1993 | WO1993021568A1 Apparatus and method in estimating expired portion of expected service life mercury vapor lamp |
| 10/27/1993 | CN2144761Y Energy saving signal lamp |
| 10/26/1993 | US5256946 Gaseous discharge lamp system with auxiliary lamp |
| 10/26/1993 | CA1323655C Electronic equipment for control of fluorescent lamps |
| 10/19/1993 | US5255206 Method and apparatus for lighting design |
| 10/19/1993 | US5255170 Illuminated memorial |
| 10/19/1993 | US5254908 Sign board lighting control system |