Patents for H01J 61 - Gas-discharge or vapour-discharge lamps (29,612) |
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05/10/1977 | US4023059 High pressure light emitting electric discharge device |
05/03/1977 | US4021696 Ultraviolet discharge lamp |
04/26/1977 | US4020385 Fluorescent lamp having conductive film and protective film therefor |
04/26/1977 | US4020379 Bulb-shaped flashtube with metal envelope |
04/26/1977 | US4020378 Integral mercury-vapor pressure regulating means for fluorescent lamp |
04/26/1977 | US4020377 High pressure mercury vapor discharge lamp |
04/19/1977 | US4019078 Method of electrode mounting in high-pressure sodium discharge lamp |
04/05/1977 | US4016445 Deuterium arc lamp |
03/29/1977 | US4015165 Electric lamp with molybdenum contact pins surrounded by non-corrosive metal sleeves |
03/29/1977 | US4015164 Metallic halide high-pressure gas discharge lamp |
03/29/1977 | US4015162 Fluorescent lamp having implanted amalgamative metal for mercury vapor regulation |
03/22/1977 | US4013920 Safety switch which renders hid lamp inoperative on accidental breakage of outer envelope |
03/22/1977 | US4013919 Discharge lamp having fuse-switch guard against jacket failure |
03/22/1977 | US4013914 electrode protecting means for electric discharge lamps |
03/15/1977 | US4012655 Refractory metal oxide reflector coating on lamp envelope |
03/08/1977 | US4011480 Electric discharge lamp |
03/01/1977 | US4010398 Or vapor discharge lamp |
03/01/1977 | US4010397 Flashlamp triggering arrangements for pressurized gas cooled lasers |
03/01/1977 | US4010000 Controlled particle size |
02/22/1977 | US4009408 Internal starting aid |
02/08/1977 | US4007397 Arc discharge lamp with starter electrode voltage doubling |
02/01/1977 | US4006378 Optical coating with selectable transmittance characteristics and method of making the same |
01/25/1977 | US4005332 Efficient DC operated fluorescent lamps |
01/25/1977 | US4005328 Mercury vapor discharge lamp for use in color copying by means of electrophotographic processes |
01/18/1977 | US4004189 Three-electrode short duration flash tube |
01/18/1977 | US4004173 Sodium vapor electric discharge lamp |
01/18/1977 | US4004171 Gas-and/or vapor discharge lamp |
01/18/1977 | US4003845 Luminescent material |
01/11/1977 | US4002940 Electrode for a discharge lamp |
01/11/1977 | US4002939 Electric lamp |
01/04/1977 | US4001634 Discharge lamp having thermal switch starter |
01/04/1977 | US4001633 Device provided with a gas and/or vapor discharge tube |
01/04/1977 | US4001628 Low-pressure fluorescent discharge device which utilizes both inorganic and organic phosphors |
01/04/1977 | US4001626 High pressure tin halide discharge lamp |
01/04/1977 | US4001625 High-pressure discharge lamp having a metal lead through conductor |
01/04/1977 | US4001624 Soft glass flashtube |
01/04/1977 | US4001623 Arc tube for high-pressure mercury/metal halide lamp |
12/28/1976 | US4000436 Gaseous discharge luminous device |
12/28/1976 | US4000431 Ultraviolet radiation source with envelope having pressure equalization region |
12/21/1976 | US3999057 Lighting structure |
12/07/1976 | US3996493 Fluorescent lamp unit having ballast resistor |
12/07/1976 | US3996487 Ceramic discharge lamp with reduced heat drain |
12/07/1976 | US3995928 High pressure metal halide lamp with electron collector |
11/30/1976 | US3995192 Reprographic fluorescent lamp with improved reflector layer |
11/30/1976 | US3995191 Mercury vapor, phosphor, titanium dioxide reflector layer with magnesium oxide |
11/30/1976 | US3995182 Low-pressure sodium vapor discharge lamp |
11/23/1976 | US3993922 Arc discharge lamp with integral trigger electrode |
11/16/1976 | US3992646 Plant growth type fluorescent lamp |
11/16/1976 | US3992645 Magnesium aluminate gallate phosphors and reprographic lamp containing same |
11/16/1976 | US3992642 Ceramic envelope plug and lead wire and seal |
11/09/1976 | US3991336 Xenon lamp having magnets around the electrodes thereof |
11/02/1976 | US3989972 High pressure mercury vapor discharge lamp containing bismuth iodide |
11/02/1976 | US3989970 Metal halide high-intensity discharge lamp having improved restart capability |
10/26/1976 | US3988633 Fluorescent lamp with envelope grooves |
10/26/1976 | US3988629 Thermionic wick electrode for discharge lamps |
10/26/1976 | US3988628 Metal halide lamp with titania-silicate barrier zone in fused silica envelope |
10/26/1976 | US3988626 Magnetically stabilized xenon arc lamp |
10/19/1976 | US3987331 Ultraviolet emitting fluorescent lamp having internal reflector film |
10/19/1976 | US3987306 Treatment of material by ultra-violet irradiation |
10/19/1976 | US3986236 Method of sealing alumina arc tube |
10/05/1976 | US3984719 Internally sealed lamp |
10/05/1976 | US3984590 Protective coatings of metal phosphates and arsenates |
10/05/1976 | US3984589 Tin oxide coating |
09/28/1976 | US3983440 Arc-modifier of a halogen, metal or metal halide |
09/28/1976 | US3983436 Electric arc discharge lamp |
09/28/1976 | US3983385 Method and apparatus for operating a mercury vapor lamp |
09/21/1976 | US3982154 Arc discharge lamp construction for starter electrode voltage doubling |
09/07/1976 | US3979624 High-efficiency discharge lamp which incorporates a small molar excess of alkali metal halide as compared to scandium halide |
08/31/1976 | US3978361 Light source device |
08/10/1976 | US3974418 Fluorescent lamp unit with ballast resistor and cooling means therefor |
08/10/1976 | US3974410 Alumina ceramic lamp having enhanced heat conduction to the amalgam pool |
08/10/1976 | US3973691 Fluorescent lamp having improved phosphor coating |
07/27/1976 | US3971968 Ultraviolet radiation source including temperature control and pressure control operating means |
07/20/1976 | US3970883 Arc lamp with movable electrode |
07/20/1976 | US3970856 Ultraviolet light applicator |
07/06/1976 | US3968392 Pulse discharge lamp, in particular an electronic flash tube |
06/29/1976 | US3967153 Fluorescent lamp having electrically conductive coating and a protective coating therefor |
06/22/1976 | US3965387 Electric lamp and thermal switch therefore |
06/15/1976 | US3963954 Fluorescent lamp having indium oxide conductive coating and a protective coating therefor |
06/15/1976 | US3963953 Color mismatch accentuating device |
06/15/1976 | US3963951 Metal halide discharge lamp having a reflective coating |
06/01/1976 | US3961222 Sodium vapor lamp configuration |
05/25/1976 | US3959682 Electric lamp |
05/25/1976 | US3959524 Coating with a suspension of zirconium dioxide and zirconium boride, drying, firing |
05/18/1976 | US3958145 High pressure, mercury vapor, metal halide discharge lamp |
05/11/1976 | US3956667 Luminous discharge display device |
05/11/1976 | US3956663 Luminescent screen with thallium activated aluminate |
05/11/1976 | US3956660 Electric incandescent lamp |
05/11/1976 | US3956656 Discharge tube having two internal electrodes |
05/11/1976 | US3956655 Ultraviolet radiation source |
04/27/1976 | US3953761 Fluorescent light bulb for use in conventional incandescent bulb fixture |
04/27/1976 | US3953755 High pressure gas discharge lamp including a hydrogen getter |
04/27/1976 | US3953376 Method for preparing emissive coating for electrodes |
04/20/1976 | US3951874 Method for preparing electron emissive coatings |
04/06/1976 | US3949259 Light-transmitting, thermal-radiation reflecting filter |
04/06/1976 | US3949258 Method and means for suppressing ozone generated by arc lamps |
04/06/1976 | US3948793 Ultra-pure metal halide particles |
03/30/1976 | US3947719 Filtered fluorescent lamp |
03/30/1976 | US3947714 Metal iodide vapour discharge lamp |
03/23/1976 | US3946263 Encapsulated lamp assembly |