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