Patents
Patents for H01J 61 - Gas-discharge or vapour-discharge lamps (29,612)
04/1989
04/04/1989US4818915 Arc discharge lamp with ultraviolet radiation starting source
03/1989
03/29/1989EP0308975A1 Cold cathode discharge tube
03/29/1989CN1032095A Dc fluorescent lamp device
03/28/1989US4816974 Glare control lamp and reflector assembly and method for glare control
03/28/1989US4816719 Low pressure arc discharge tube with reduced ballasting requirement
03/22/1989EP0179778B1 Adapter for releasibly connecting electric lighting apparatuses
03/22/1989CN1031909A High-coloration and high-voltage fluorescent mercury-vapour lamp
03/22/1989CN1031908A Low-pressure mercury vapour discharge lamp
03/21/1989US4814663 Fluorescent lamp for unipolar mode of operation
03/15/1989EP0307037A1 Low-pressure mercury vapour discharge lamp
03/15/1989EP0306497A1 Radiation-emitting devices
03/15/1989CN2034332U Fluorescent explosion-proof light with high illumination
03/15/1989CN2034331U Multi-filament fluorescent tube with switching function
03/14/1989US4812714 Arc discharge lamp with electrodeless ultraviolet radiation starting source
03/09/1989WO1989002160A1 Hot cathode type low pressure rare gas discharge lamp
03/08/1989EP0306269A2 Double-enveloped electric lamp
03/08/1989EP0306257A2 Metal vapour discharge lamp
03/08/1989EP0306085A1 High-pressure discharge lamp
03/08/1989CN1031625A Long-lifetime fluorescent tube
03/07/1989US4810938 High efficacy electrodeless high intensity discharge lamp
03/07/1989US4810932 Tungsten-halogen incandescent and metal vapor discharge lamps and processes of making such
03/07/1989US4810930 Luminescent Eu3+ -activated silicate, luminescent screen provided with such a silicate and low-pressure mercury vapor discharge lamp provided with such a screen
03/07/1989US4810924 Double-bore capillary-tube gas discharge lamp with an envelope window transparent to short wavelength light
03/07/1989CA1250888A1 Ceramic lamp end closure and inlead structure
03/07/1989CA1250887A1 Light emitting tube and method for producing same
03/07/1989CA1250886A1 Low pressure mercury vapor discharge lamp and preparation thereof
03/01/1989EP0305151A2 Erase lamp
03/01/1989CN2033545U Direct-current fluorescent tube
02/1989
02/28/1989US4808883 Discharge lamp device having semiconductor ceramic cathode
02/28/1989US4808882 High pressure discharge lamp with overhung end arc tube and cermet ends
02/28/1989US4808881 Ceramic envelope device for high-pressure discharge lamp
02/28/1989US4808877 Low-pressure sodium discharge lamp having a collar-like heat shield
02/28/1989US4808876 Metal halide lamp
02/23/1989WO1989001700A1 Green light emitting rare gas discharge lamp
02/22/1989EP0304117A1 Luminescent Eu3+-activated silicate, luminescent screen provided with such a silicate and low-pressure mercury vapour discharge lamp provided with such a screen
02/21/1989US4806975 Erase lamp with plural electrodes
02/21/1989US4806828 High pressure sodium discharge lamps with hydrogen getter
02/21/1989US4806826 High pressure sodium vapor discharge device
02/21/1989US4806825 Infra-red phosphors
02/21/1989US4806824 Fluorescent lamp using multi-layer phosphor coating
02/21/1989US4806816 High-pressure discharge lamp
02/15/1989CN1031102A Fluorescent powder for scarlet fluorescent lamp and its preparation
02/14/1989US4805180 Discharge tube apparatus
02/14/1989US4804889 Electrode feedthrough assembly for arc discharge lamp
02/14/1989US4804888 Low starting voltage short-arc discharge lamp
02/14/1989US4804886 Nondegradable to different temperatures; economically feasible
02/07/1989US4803404 Envelope for small high-intensity-discharge electrodeless arc lamp
02/07/1989US4803403 End seal for ceramic arc discharge tubes
02/07/1989US4803401 Compact fluorescent lamp
02/07/1989US4803400 Pre-water-based suspension phosphor treatment process
02/07/1989US4803399 Fluorescent lamp arrangement for uniformly illuminating a display panel
02/01/1989EP0301560A2 Gas discharge lamp with built-in resistance to color center formation in ultraviolet-transmissive window
02/01/1989CN2031966U Electronic energy-saving fluorescent lamp with heat-radiating shell
01/1989
01/31/1989US4801846 Mercury with cerium, thulium, cesium, and calcium iodide and an inert gas
01/31/1989US4801841 Gas discharge lamp with built-in resistance to color center formation in ultraviolet-transmissive window
01/31/1989US4801840 Discharge lamp having automatically controlled preheating device attached to envelope
01/25/1989CN2031574U Combined self ballast electron fluorescent lamp with multiple bulbs
01/24/1989US4800321 High pressure sodium lamp
01/24/1989US4800320 Discharge tube for a high pressure metal vapor discharge lamp and a method of manufacturing the same
01/24/1989US4800319 Luminescent halophosphate, borate, yellow pigment
01/24/1989US4799601 Translucent alumina ceramic tube and a process for making same
01/19/1989DE3831691A1 Method for reducing the blackening of the vessel of a mercury-vapour ultraviolet radiator
01/18/1989EP0299230A1 Cathode for a high-pressure discharge lamp
01/18/1989CN2031161U Electronic power-saving fluorescent lamp
01/17/1989US4799135 Headlight for vehicle
01/17/1989US4798997 Lighting device
01/17/1989US4798995 Metal halide lamp containing halide composition to control arc tube performance
01/17/1989US4798768 Luminescent alumino-silicate and/or alumino-borate glass comprising lanthanum and/or gadolinium and luminescent screen provided with such a glass
01/17/1989US4798681 Terbium oxide or cerium oxide activator
01/17/1989CA1249015A1 High pressure sodium lamp having improved pressure stability
01/17/1989CA1249014A1 High-pressure gas discharge lamp having an electrode consisting of tungsten sheet material
01/11/1989EP0298544A1 Colored fluorescent display lamp assembly
01/10/1989US4797594 Reprographic aperture lamps having improved maintenance
01/04/1989CN2030378U Multiple loop lamp
01/03/1989US4795943 High-pressure sodium vapor discharge lamp
01/03/1989US4795942 Hollow cathode discharge device with front shield
01/03/1989US4795939 Electric lamp bulb attachment arrangement
01/03/1989US4795588 Method of preparing a luminescent Eu2 + activated strontium aluminate
01/03/1989CA1248169A1 Fluorescent light unit with dual light levels
12/1988
12/28/1988EP0296536A2 Integral lamp for tricolor picture element
12/28/1988EP0296535A2 Low-pressure arc discharge lamp having increased surface brightness
12/28/1988EP0296534A2 Low-pressure arc discharge lamp having increased surface brightness
12/28/1988EP0296531A2 Phospor process for its production and ultraviolet ray excited fluorescent tube employing it
12/28/1988CN88211566U Connecting structure of daylight lamp
12/27/1988US4794614 Discharge tubes
12/27/1988US4794301 Fluorescent lamp having a convoluted discharge passage and fluorescent lamp apparatus incorporating the same
12/27/1988US4794297 Shielded discharge-type automotive head lamp
12/21/1988EP0295491A1 Apparatus for and method of stabilizing the quantity of light of fluorescent lamp
12/20/1988US4792730 Circuit for interrupting arc discharge in a gas-discharge vessel
12/20/1988US4792726 Fluorescent lamp unit with integral ballast housing
12/20/1988US4792716 Energy-efficient electric discharge lamp with reflective coating
12/15/1988WO1988010005A1 Silicon dioxide selectively reflecting layer for mercury vapor discharge lamps
12/14/1988EP0295140A2 Fluorescent lamp with a predetermined cri and method for making
12/13/1988US4791334 Metal-halide lamp having heat redistribution means
12/13/1988CA1246658A1 Compact fluorescent lamp assembly
12/13/1988CA1246656A1 Single-ended high intensity discharge lamp and manufacture
12/13/1988CA1246655A1 Electrode alignment and capsule design for single- ended low wattage metal halide lamps
12/13/1988CA1246654A1 End seal for ceramic arc discharge tubes
12/13/1988CA1246653A1 Low wattage metal halide lamp
12/13/1988CA1246642A1 Fluorescent lamp with iron-nickel bimetal filament switch