초록 ▼

A lamp assembly in accordance with the invention includes an electrodeless bulb (14) which is symmetrical about an axis (16) and which contains a light emissive fill which emits light when the bulb is excited by a RF electrical field coupled to the fill; an electrically conductive coupler (18) compr

A lamp assembly in accordance with the invention includes an electrodeless bulb (14) which is symmetrical about an axis (16) and which contains a light emissive fill which emits light when the bulb is excited by a RF electrical field coupled to the fill; an electrically conductive coupler (18) comprising a plurality of turns (20) which are symmetrical about an axis of the electrically conductive coupler, the turns defining a volume (19) that at least partially contains the bulb; and a conductor (26) connected to a center portion of the electrically conductive coupler with connection of the conductor to the electrically conductive coupler providing a fixing of the coupler relative to the bulb which, when the conductor is connected to a source of RF electrical potential, conducts a RF current producing a RF electrical potential on the electrically conductive coupler that produces the RF electrical field coupled to the light emissive fill.

대표청구항 ▼

A lamp assembly in accordance with the invention includes an electrodeless bulb (14) which is symmetrical about an axis (16) and which contains a light emissive fill which emits light when the bulb is excited by a RF electrical field coupled to the fill; an electrically conductive coupler (18) compr

A lamp assembly in accordance with the invention includes an electrodeless bulb (14) which is symmetrical about an axis (16) and which contains a light emissive fill which emits light when the bulb is excited by a RF electrical field coupled to the fill; an electrically conductive coupler (18) comprising a plurality of turns (20) which are symmetrical about an axis of the electrically conductive coupler, the turns defining a volume (19) that at least partially contains the bulb; and a conductor (26) connected to a center portion of the electrically conductive coupler with connection of the conductor to the electrically conductive coupler providing a fixing of the coupler relative to the bulb which, when the conductor is connected to a source of RF electrical potential, conducts a RF current producing a RF electrical potential on the electrically conductive coupler that produces the RF electrical field coupled to the light emissive fill. ording to claim 6, wherein said pre-sustaining erasing voltage holding time is greater than 5 microseconds. missive of at least a portion of the second visible light emitted from the first chamber and of the re-radiated visible light emitted from the second chamber. 7. The lamp in claim 1, where in the first spectrum includes infrared light and a second visible light, the first wall material is transmissive of at least a portion of the infrared light and the second visible light; and the second fill material is excitable to re-radiate visible light by at least a portion of transmitted infrared light, and the second wall material is transmissive of at least a portion of the second visible light emitted from the first chamber and of the re-radiated infrared light emitted from the second chamber. 8. An electric discharge lamp, comprising: a double jacketed lamp envelope with a sealed inner chamber of a first light transmissive wall material containing a first fill material that emits light when activated by electric power, and a separately sealed outer chamber between said double jackets, said outer chamber containing a second fill material having a gaseous state at least during lamp operation that converts at least a portion of the light emitted from said inner chamber that is outside the visible spectrum to at least some light in the visible spectrum, which is then emitted by the second fill material from said outer chamber. 9. The lamp of claim 8, wherein said double jacketed bulb comprises an inner light transmissive jacket that defines said sealed inner chamber and an outer light transmissive jacket around a light transmissive portion of said inner jacket that defines said separately sealed outer chamber between said inner and outer jackets, said outer jacket being in thermally transmissive contact with said inner jacket. 10. The lamp of claim 8, wherein said second fill material is vaporizable by heat from said sealed inner chamber during normal operation of the lamp. 11. The lamp of claim 8, wherein said second fill material converts at least a portion of ultraviolet and deep blue light to at least some light in the visible spectrum. 12. The lamp of claim 8, wherein said second fill material comprises sulfur. 13. The lamp of claim 8, wherein said second fill material comprises selenium. 14. The lamp of claim 8, wherein said second fill material comprises tellurium. 15. The lamp of claim 8, wherein said second fill material comprises one of carbon disulfide, boron sulfide, phosphorus, mercury halides, a mixture of xenon with one of: HCl, AlCl3,sodium, or iodine vapor. 16. The lamp of claim 8, wherein said second fill material converts at least a portion of the light emitted by the first material with a wavelength less than 450 nanometers to at least some visible light with a wavelength greater than 450 nanometers. 17. The lamp of claim 8, wherein said sealed inner chamber is an electrodeless high intensity discharge lamp. 18. The lamp of claim 8, further comprising at least one electrode that extends into said sealed inner chamber. 19. An electric discharge lamp comprising: a light transmissive inner jacket of a first wall material that defines a sealed inner chamber; a first fill material in said inner chamber that emits light and heat when activated; a light transmissive outer jacket around a light transmissive portion of said inner jacket and that defines a sealed outer chamber between said inner jacket and said outer jacket, said outer jacket being in thermally transmissive contact with said inner jacket; and a second fill material in said outer chamber that, when vaporized by the heat from said inner chamber when the lamp is operating, converts at least a portion of ultraviolet (UV) light emitted from said inner chamber to at least some visible light, thereby increasing an amount of visible light transmitted through said outer jacket from an amount of visible light transmitted through said inner jacket. 20. The lamp of claim 19, wherein said second fill material comprises one of sulfur, selenium, tell