Abstract:
Disclosed are cathode units for use in fluorescent discharge lamps which include a stem element adapted for sealing engagement with an end of an elongated vitreous/glass tube, first and second electrode support wires extending axially through the stem element, and a filament electrode which is oriented substantially axially with respect to the support wires. The support wires each have a inwardly-directed tip portion and the filament electrode is attached thereto. The ends of the filament electrode are attached to the support wires by welding. In alternative embodiments, the disclosed cathode unit can further include an electrode shield assembly.
Abstract:
Disclosed is a new and useful discharge lamp for use in applications, such as tanning and technical lighting, and a method of making the same. The discharge lamp includes, inter alia , a vitreous tube (52) having an axial length, a base phosphor coating (56) applied on the interior of the tube along the entire axial length, and at least one phosphor over-coat (59) applied over the base phosphor coating (56) in one or more axial regions of the vitreous tube. The phosphor over-coat is applied to less than the total length of the vitreous tube. In a representative embodiment, the vitreous tube has an outer periphery which is smooth, but in alternate embodiments, a helical groove path is formed therein over at least a portion of the axial length.
Abstract:
The present invention provides a device and method for exposing a person to ultraviolet radiation in tanning wavelengths which is emitted from a discharge lamp having a plurality of grooves formed in its outer periphery along a helical path. The discharge lamp includes, inter alia , an elongated vitreous tube, first and second electrode assemblies and a coating on the interior of the tube. The coating is applied on an interior of the tube along the entire length for emitting ultraviolet radiation in tanning wavelengths when a voltage is applied across the first and second electrodes. In a first representative embodiment, the plurality of grooves are interconnected and the helical path is continuous. Alternatively, the plurality of grooves can be axially offset and the helical path can be discontinuous.
Abstract:
Disclosed are discharge lamps that stimulate the production of vitamin D in a person exposed thereto, and more specifically, to discharge lamps which over a predetermine exposure period stimulate a person's production of vitamin D without causing significant facultative pigmentation or melanin oxidization. Moreover, the present invention is also directed to discharge lamps that in addition to stimulating a person's production of vitamin D, emit photons that rejuvenate the collagen/elastin matrix that supports the person's skin, cartilage and bone.
Abstract:
Disclosed are cathode units for use in fluorescent discharge lamps which include a stem element adapted for sealing engagement with an end of an elongated vitreous/glass tube, first and second electrode support wires extending axially through the stem element, and a filament electrode which is oriented substantially axially with respect to the support wires. The support wires each have a inwardly-directed tip portion and the filament electrode is attached thereto. The ends of the filament electrode are attached to the support wires by welding. In alternative embodiments, the disclosed cathode unit can further include an electrode shield assembly.
Abstract:
The present invention provides a device and method for exposing a person to ultraviolet radiation in tanning wavelengths which is emitted from a discharge lamp (50) having a plurality of grooves (62) formed in its outer periphery along a helical path. The discharge lamp includes, inter alia , an elongated vitreous tube (52), first and second electrode assemblies and a coating on the interior of the tube. The coating (56) is applied on an interior of the tube along the entire length (L1) for emitting ultraviolet radiation in tanning wavelengths when a voltage is applied across the first and second electrodes. In a first representative embodiment, the plurality of grooves are interconnected and the helical path is continuous. Alternatively, the plurality of grooves can be axially offset and the helical path can be discontinuous.
Abstract:
Disclosed are discharge lamps that stimulate the production of vitamin D in a person exposed thereto, and more specifically, to discharge lamps which over a predetermine exposure period stimulate a person's production of vitamin D without causing significant facultative pigmentation or melanin oxidization. Moreover, the present invention is also directed to discharge lamps that in addition to stimulating a person's production of vitamin D, emit photons that rejuvenate the collagen/elastin matrix that supports the person's skin, cartilage and bone.
Abstract:
Disclosed are discharge lamps for use in tanning applications and methods of making the same. The lamps include, among other elements, an elongated vitreous tube which has an outer periphery and axially opposed first and second ends that define an axial length for the tube. A coating is applied on the interior of the tube for emitting ultraviolet radiation in tanning wavelengths when a voltage to the lamp. The coating is specifically formulated so that the ultraviolet radiation emitted from the lamp in a range of about 320 nm to about 340 nm is less than or equal to about 10 percent of the ultraviolet radiation emitted from the lamp in a range of about 280 nm to about 400 nm.
Abstract:
Disclosed are discharge lamps for use in tanning applications and methods of making the same. The lamps include, among other elements, an elongated vitreous tube which has an outer periphery and axially opposed first and second ends that define an axial length for the tube. A coating is applied on the interior of the tube for emitting ultraviolet radiation in tanning wavelengths when a voltage to the lamp. The coating is specifically formulated so that the ultraviolet radiation emitted from the lamp in a range of about 320 nm to about 340 nm is less than or equal to about 10 percent of the ultraviolet radiation emitted from the lamp in a range of about 280 nm to about 400 nm.