Patents for H01J 61 - Gas-discharge or vapour-discharge lamps (29,612) |
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03/25/1980 | US4195251 High intensity discharge lamp having safety device with pyrophoric material |
03/25/1980 | US4195249 Flat type of fluorescent lamp |
03/25/1980 | CA1074386A1 Low-pressure fluorescent discharge device which utilizes both inorganic and organic phosphors |
03/11/1980 | CA1073513A1 Ceramic lamp seal and control of sealing frit distribution |
03/04/1980 | US4191910 Starting arrangement for high pressure discharge sodium lamp |
03/04/1980 | US4191907 Compact single-ended fluorescent lamp having a partitioned envelope |
02/26/1980 | US4190786 Discharge lamp |
02/12/1980 | CA1071696A1 Discharge tube vapour pressure control circuit |
02/12/1980 | CA1071687A1 Ceramic envelope plug and lead wire end seal |
02/12/1980 | CA1071685A1 Metal halide lamp having open tungsten coil electrodes |
02/06/1980 | EP0007838A2 Luminescent blue-emitting materials based on bivalent europium, processes for their preparation and their use |
02/05/1980 | US4187446 Screw-in fluorescent lamp with magnetic arc spreading |
02/05/1980 | US4187445 Solenoidal electric field lamp with reduced electromagnetic interference |
02/05/1980 | CA1071295A1 Device provided with a low-pressure sodium vapour discharge lamp |
02/05/1980 | CA1071293A1 Method of operating a self-stabilizing discharge lamp |
01/29/1980 | US4186432 Lamp for use in subterranean applications |
01/29/1980 | US4186327 Safety switch which renders high intensity discharge lamp inoperative on accidental breakage of outer envelope |
01/29/1980 | CA1070748A1 Ozone absorbance controller |
01/22/1980 | US4185222 Luminescent bivalent europium-activated barium borophosphate and discharge lamp containing the same |
01/22/1980 | US4185221 Double-ended fluorescent lamp having a partitioned envelope |
01/22/1980 | CA1070368A1 Electrical discharge lamp |
01/15/1980 | US4184101 Compact fluorescent lamp having a partitioned envelope |
01/15/1980 | US4184096 Weather resistance and light fastness tester with cooled xenon lamp |
01/08/1980 | US4182976 High pressure sodium vapor lamp with voltage rise compensator |
01/08/1980 | US4182975 Compact fluorescent lamp having a partitioned envelope, and method of manufacture |
01/08/1980 | US4182972 Transparent polycrystalline alumina and high pressure vapor discharge lamp |
01/08/1980 | US4182971 Mercury-containing glass-capsule dispenser for discharge lamps |
01/08/1980 | CA1069481A1 Fluorescent lamp for use in explosive atmospheres such as mines |
12/25/1979 | USRE30181 Converting ozone to oxygen |
12/25/1979 | US4180478 Alkaline earth halide-rare earth fluoride phosphor |
12/25/1979 | US4179777 Method of producing a low-pressure gas discharge lamp |
12/25/1979 | CA1068771A Rapid pulse ultraviolet light apparatus |
12/18/1979 | US4179640 Hid sodium lamp which incorporates a high pressure of xenon and a trigger starting electrode |
12/18/1979 | US4179037 Xenon arc lamp with compressive ceramic to metal seals |
12/18/1979 | CA1068324A1 High-intensity lamp having high pulse repetition rate and narrow pulse-width |
12/11/1979 | USRE30165 Electric discharge lamp |
12/11/1979 | US4178535 Three-way brightness fluorescent lampholder fitting |
12/11/1979 | US4178078 Aerodynamic window |
12/11/1979 | CA1067949A1 Electrode protecting means for electric discharge lamps |
12/04/1979 | US4177403 Electronic starter for igniting a discharge lamp |
12/04/1979 | US4177401 Low pressure metal vapor discharge lamp with tubular member and magnetic means |
12/04/1979 | CA1067565A1 Method of producing a low-pressure gas discharge lamp with filament wool in the discharge space |
12/04/1979 | CA1067564A1 Method for producing a low-pressure gas discharge lamp |
12/04/1979 | CA1067561A1 Low-pressure mercury vapour discharge lamp |
11/27/1979 | US4176299 Method for efficiently generating white light with good color rendition of illuminated objects |
11/27/1979 | US4176294 Method and device for efficiently generating white light with good rendition of illuminated objects |
11/13/1979 | US4174294 Fluorescent material |
11/13/1979 | CA1066247A1 Apparatus for delivering relatively cold uv to a substrate |
11/06/1979 | US4173730 Compact fluorescent lamp unit having integral circuit means for DC operation |
11/06/1979 | US4173728 Pulsed cesium discharge light source |
10/31/1979 | EP0004962A1 Glow discharge lamp for qualitative and quantitative spectral analysis |
10/16/1979 | US4171500 Electric lamp |
10/16/1979 | US4171498 High pressure electric discharge lamp containing metal halides |
10/16/1979 | CA1064569A1 Ultraviolet radiation source |
10/16/1979 | CA1064566A1 High pressure sodium vapor discharge lamp |
10/09/1979 | US4170746 High frequency operation of miniature metal vapor discharge lamps |
10/09/1979 | US4170744 Combination discharge-incandescent lamp with thermal switch control |
10/09/1979 | US4170743 Prevention of arc-through increases average useful life |
10/09/1979 | US4170619 Method and apparatus for dispensing salt powder as pellets in lamp making |
10/02/1979 | US4169875 Method of producing a tubular body of polycrystalline alumina |
09/25/1979 | CA1063150A1 Fluorescent lamp with an integral fail-safe and auxiliary-amalgam component |
09/19/1979 | EP0004082A1 Method for energizing high pressure metal vapour discharge lamps |
09/18/1979 | US4168522 Light emission control for gas-discharge lamp |
08/28/1979 | US4166234 Fluorescent discharge lamp having luminescent material of a specified grain size |
08/28/1979 | CA1061102A1 Luminescent screen |
08/21/1979 | CA1060942A1 Alumina coatings for mercury vapor lamps |
08/21/1979 | CA1060940A1 Mercury vapor lamp utilizing a combination of phosphor materials |
08/21/1979 | CA1060939A1 Alumina ceramic lamp having enhanced heat conduction to the amalgam pool |
08/14/1979 | CA1060535A1 High temperature lamp starting aid |
08/14/1979 | CA1060534A1 Thermal switch |
08/14/1979 | CA1060533A1 Metal halide discharge lamp starting electrode |
08/14/1979 | CA1060529A1 Current supply leadthroughs of high pressure lamps comprising borides of titanium or zirconium |
08/14/1979 | CA1060525A1 Current leadthrough for ceramic discharge lamp |
08/14/1979 | CA1060524A1 Ceramic discharge lamp with leadthroughs protected |
07/31/1979 | US4163176 Energy saving fluorescent lamp |
07/31/1979 | US4163169 Low-pressure gas discharge lamp |
07/31/1979 | CA1059580A1 Voltage doubler type power supply for a gas discharge lamp |
07/24/1979 | US4162151 Method of forming arc tube end seal |
07/17/1979 | US4161672 High pressure metal vapor discharge lamps of improved efficacy |
07/17/1979 | CA1058682A1 Alumina ceramic alkali metal lamp having metal getter structure |
07/11/1979 | EP0002848A1 Electrical high-pressure metal vapour discharge lamp |
07/10/1979 | US4160930 Electric discharge lamp with annular current conductor |
07/03/1979 | US4160186 Closure structure of electric discharge tubes |
06/26/1979 | US4159510 High-intensity lamp having high pulse repetition rate and narrow pulse-width |
06/26/1979 | CA1057350A1 Fluorescent lamp with reduced wattage consumption having electrode shield with getter material |
06/19/1979 | US4158790 High intensity atomic spectral lamp with interchangeable cathode |
06/19/1979 | US4158789 Metal halide arc discharge lamp |
06/12/1979 | US4158153 Low voltage fluorescent lamp having a plurality of cathode means |
06/05/1979 | US4157485 Low-pressure mercury vapor discharge lamp with indium-bismuth-mercury amalgam |
05/29/1979 | US4156890 Flash assembly using elongated trigger bar |
05/29/1979 | US4156856 Gas lasers with platinum black cathode |
05/29/1979 | US4156831 Fluorescent lamp having heater circuit disconnect device |
05/29/1979 | US4156830 High intensity discharge lamp with integral means for arc extinguishing |
05/29/1979 | US4156826 Mercury arc lamps |
05/29/1979 | US4156550 Process for fabricating high sodium vapor lamp |
05/22/1979 | US4155758 Lamps and discharge devices and materials therefor |
05/22/1979 | US4155757 Electric lamps and components and materials therefor |
05/22/1979 | CA1055103A1 Ceramic lamp having electrodes supported by crimped tubular inlead |
05/22/1979 | CA1055099A1 Gas-and/or vapour discharge lamp |
05/22/1979 | CA1055098A1 Gas discharge lamp with movable external heat shield |