Patents
Sitemap › H01 - Basic electric elements › H01J - Electric discharge tubes or discharge lamps › H01J 61 - Gas-discharge or vapour-discharge lamps
Patents for H01J 61 - Gas-discharge or vapour-discharge lamps (29,612)
11/1989
11/08/1989CN1037048A Electric lamp with reduced internal photoelectron production
11/07/1989US4879494 Fluorescent lamp starter assembly
11/07/1989US4879493 Low-pressure discharge lamp
11/07/1989US4879492 Fluorescent lamp having a multi-layer phosphor optimized for lumen output, color rendering and cost
11/07/1989US4879489 Radiation-emitting devices
11/01/1989CN2047068U Plc lamp made by glass pipe with comparative major diameter
11/01/1989CN2047067U Small power dc gas discharge lamp
11/01/1989CN1005666B High-pressure discharge lamp
10/1989
10/31/1989US4877997 High brightness and viewed gas discharge lamp
10/31/1989US4877991 Optical radiation source
10/26/1989DE3812084A1 Metal-halide high-pressure gas discharge lamp
10/25/1989EP0338795A1 Discharge ARC lamp
10/25/1989EP0338637A2 High pressure mercury vapour discharge lamp
10/24/1989US4876483 Arc lamp with surface arc resistant barrier
10/19/1989WO1989010046A1 Fluorescent light source based on a phosphor excited by a molecular discharge
10/19/1989DE3811765A1 Alkali mixed-light lamps
10/18/1989EP0337532A1 Recombinant DNA; transformed microorganisms, plant cells and plants; a process for introducing an inducible property in plants, and a process for producing a polypeptide or protein by means of plants or plant cells
10/18/1989CN1005510B High-pressure discharge lamp
10/17/1989US4874988 Pulsed metal halide arc discharge light source
10/17/1989US4874984 Fluorescent lamp based on a phosphor excited by a molecular discharge
10/05/1989WO1989009487A1 A compact fluorescent tube and a method of its manufacture
10/05/1989DE3909715A1 Flaechige leuchtstofflampe Planar fluorescent lamp
10/05/1989DE3809623A1 High pressure discharge lamp of low power
10/05/1989DE3809622A1 High-pressure discharge lamp of low power
10/04/1989EP0335203A1 Phosphor useful for mercury vapour discharge lamps, and mercury vapour discharge lamp
10/04/1989EP0335202A2 High-pressure lamp, especially a high-pressure sodium vapour lamp
10/04/1989EP0334865A1 Fluorescent discharge tube with capacitive ballast, standardized cap, forming a compact assembly
10/04/1989EP0231303B1 Fluorescent lamp for unipolar operation
10/03/1989US4871947 Apparatus for automatically correcting arc position of high pressure discharge lamp
10/03/1989US4871944 Compact lighting unit having a convoluted fluorescent lamp with integral mercury-vapor pressure-regulating means, and method of phosphor-coating the convoluted envelope for such a lamp
10/03/1989US4871942 Low-pressure discharge lamp
10/03/1989US4871941 Gas discharge lamp with different film thicknesses
09/1989
09/27/1989EP0334444A1 Electric gas discharge lamp
09/27/1989EP0334356A1 Wall stabilized metal vapour halide discharge lamp
09/27/1989EP0334355A2 Wall-stabilized high-pressure discharge lamp
09/27/1989EP0334208A2 Compact reflector lamp
09/27/1989CN2045146U Double vacuum fluorescent lamp with plate pillar core
09/26/1989US4870484 Color display device using light shutter and color filters
09/26/1989US4870454 Apparatus for and method of stabilizing the quantity of light of fluorescent lamp
09/26/1989US4870323 Zirconium oxide coatings, insulation
09/26/1989US4870317 High-pressure discharge lamp having a thermal insulating member
09/26/1989US4870316 Concentric envelopes, alumina ceramics
09/26/1989US4869927 Thermal decomposition of organometallic compound in high boiling solvent
09/26/1989US4869698 Method of manufacturing a bulb
09/26/1989CA1260054A1 Circuit arrangement for operating a high-pressure discharge lamp
09/26/1989CA1260052A1 Mounting structure for a high pressure discharge lamp having a pair of discharge tubes
09/21/1989WO1989008801A1 Annular fluorescent lamp
09/20/1989EP0333455A2 Ceramic envelope device for high-pressure discharge lamp, and method for producing the same
09/19/1989US4868463 Method of operating a high-pressure discharge lamp
09/19/1989US4868461 Thyristor triggering device
09/19/1989US4868458 High intensity, concentrated light beam
09/19/1989US4868457 Ceramic lamp end closure and inlead structure
09/19/1989US4868452 Electric amp having a flexible conductor connecting a plurality of external pinch seal conductors to a rigid current-supply conductor
09/19/1989US4868450 Radiation device
09/19/1989US4868449 Sheet metal support for dual arc discharge lamps and method of making
09/13/1989EP0331738A1 Green light emitting rare gas discharge lamp
09/13/1989CN1035584A Electric lamp
09/12/1989US4866342 Containing thallium halide
09/12/1989US4866341 Discharge lamp with base for sealing the lamp
09/12/1989US4866339 Beam mode fluorescent lamp
09/12/1989US4866328 Electric lamp with reduced internal photoelectron production
09/12/1989US4866327 Gas discharge lamp with microporous aerogel
09/08/1989WO1989008321A1 Bulbous tube burner for metal vapour discharge lamps
09/06/1989EP0331660A2 A low pressure gas discharge lamp
09/06/1989EP0331154A1 Tube provided with an enlarged portion for metal vapour discharge lamps
09/06/1989EP0330808A1 A low pressure gas discharge lamp
09/06/1989CN2044100U Low-temp. and low-pressure explosion-proof fluorescent lamp
09/06/1989CN2044099U Square shape lamp
09/06/1989CN1035394A Unsaturatede high-pressure sodium lamp
09/05/1989US4864191 Rhenium-containing electrode for a high-pressure sodium discharge lamp
09/05/1989US4864180 Metal-halide arc tube and lamp having improved uniformity of azimuthal luminous intensity
08/1989
08/31/1989DE3904926A1 Fuer kraftfahrtechnische anwendungen besonders geeignete xenon-metallhalogenid-lampe For automotive applications, particularly suitable xenon metal halide lamp-
08/30/1989EP0330268A1 Electric lamp
08/30/1989CN1035062A Poly element metal halide mixture pellet for lamp and its preparation method
08/29/1989US4862035 Fluorescent lamp unit having plural separate tubes and particular arrangement of circuit elements
08/29/1989US4861737 Ceramic translucent material, method of manufacturing such a material and high-pressure discharge lamp provided with such a material
08/23/1989EP0328689A1 Hot cathode type low pressure rare gas discharge lamp
08/22/1989US4859905 Unsaturated vapor high pressure sodium lamp getter mounting
08/22/1989US4859903 Ultraviolet fluorescent lamp for accelerated exposure test on polymer
08/22/1989US4859899 Metal-halide lamp having heat redistribution means
08/16/1989EP0328209A1 Unsaturated high-pressure sodium lamp
08/16/1989EP0327570A1 Coloured electric light devices
08/16/1989CN1034825A New-type high-performance hollow-cathode lamp
08/15/1989US4857808 Modified impedance rapid start fluorescent lamp system
08/15/1989US4857798 Fluorescent lamp with silica layer
08/10/1989WO1989007331A1 Explosionproof discharge lamp
08/09/1989EP0327346A2 Amalgam suitable for use in a low mercury vapor pressure discharge lamp
08/09/1989EP0327049A1 Method of vacuum-tight sealing a ceramic tube
08/08/1989US4855643 Unsaturated vapor pressure type high pressure sodium lamp
08/08/1989US4855635 Fluorescent lamp unit with magnetic field generating means
08/02/1989EP0326079A1 Explosion-proof discharge lamp
08/02/1989CN2042244U Multi-pin and multi-filament fluorescent lamp
08/02/1989CN2042243U Fluorescent lamp glowing with an intense light
08/01/1989US4853597 Rapid restrike metal halide lamp and a method of operating such
08/01/1989US4853596 Flash discharge lamp with sintered cathode member
08/01/1989US4853591 Multiple-tube compact low-pressure discharge fluorescent lamp
08/01/1989US4853583 Low-pressure mercury vapor discharge lamp having a lamp cap with walls for guiding electrode leads past starter means disposed therein
08/01/1989US4853581 Radiation-emitting devices
07/1989
07/27/1989WO1989006861A1 Fluorescent tubes
07/26/1989EP0325157A1 Gas discharge lamp
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