Abstract: A method of making a subassembly (10) for a PAR lamp (12) comprising the steps of: (a) providing a base (14) including a cup-shaped portion (16) with a top edge (18) having an extended flange (20) projecting therefrom; (b) providing a plurality of electrical contacts (22, 24) and inserting the contacts into appropriate locations (22a, 24a) in a bottom (26) of the cup-shaped portion (16); (c) providing a lamp capsule (28) including a light source (30) having dependent leads (32, 34) projecting from a base end (36); (d) inserting the base end (36) of the lamp capsule (28) into the cup-shaped portion (16) and affixing the dependent leads (32, 34) to the electrical contacts (22, 24); (e) providing a reflector (38) having a funnel-shaped body (40) with a substantially tubular neck (42); (f) filling the cup-shaped portion (16) with a liquid cement (44) to a depth that covers the base end (36) of the lamp capsule (28); (g) fitting the reflector (38) over the lamp capsule (28) so that the tubular neck (42) is submers

Abstract: An integral HID reflector lamp may be formed with an HID held in a reflector. An inner element is mechanically coupled to the reflector. The inner element is formed with a first mechanical coupling to mate with the reflector, a second mechanical coupling to mate with a circuit board, and an electrical coupling to at least electrically couple one of the leads to the circuit board. A circuit board has an edge mechanically coupled to the inner element and electrically connected to the leads by an electrical coupling on the inner element. A heat sink spans at least one side of the circuit board and forming an EMI shielding. An outer cover encloses the heat sink, circuit board, and inner element and coupled to the assembly of the reflector, HID lamp, inner element, and heat sink with each elements of the assembly clipped together.

Abstract: A high frequency ballast for a metal halide lamp comprises a controller, a switch, and an oscillator. The controller selectively enables and disables the oscillator via the switch to ignite the lamp. The ignition method includes enabling the oscillator such that the oscillator provides the lamp with a pulse train comprising a rapid series of short ignition pulses, cools for a period of time, and provides an addition pulse train to the lamp if necessary to ignite the lamp. When the lamp ignites, the ballast maintains enablement of the oscillator.

Abstract: A method of making a subassembly (10) for a PAR lamp (12) comprising the steps of: (a) providing a base (14) including a cup-shaped portion (16) with a top edge (18) having an extended flange (20) projecting therefrom; (b) providing a plurality of electrical contacts (22, 24) and inserting the contacts into appropriate locations (22a, 24a) in a bottom (26) of the cup-shaped portion (16); (c) providing a lamp capsule (28) including a light source (30) having dependent leads (32, 34) projecting from a base end (36); (d) inserting the base end (36) of the lamp capsule (28) into the cup-shaped portion (16) and affixing the dependent leads (32, 34) to the electrical contacts (22, 24); (e) providing a reflector (38) having a funnel-shaped body (40) with a substantially tubular neck (42); (f) filling the cup-shaped portion (16) with a liquid cement (44) to a depth that covers the base end (36) of the lamp capsule (28); (g) fitting the reflector (38) over the lamp capsule (28) so that the tubular neck (42) is submers

Abstract: A high frequency ballast for a metal halide lamp comprises a controller, a switch, and an oscillator. The controller selectively enables and disables the oscillator via the switch to ignite the lamp. The ignition method includes enabling the oscillator such that the oscillator provides the lamp with a pulse train comprising a rapid series of short ignition pulses, cools for a period of time, and provides an addition pulse train to the lamp if necessary to ignite the lamp. When the lamp ignites, the ballast maintains enablement of the oscillator.

Abstract: An integral HID reflector lamp may be formed with an HID held in a reflector. An inner element is mechanically coupled to the reflector. The inner element is formed with a first mechanical coupling to mate with the reflector, a second mechanical coupling to mate with a circuit board, and an electrical coupling to at least electrically couple one of the leads to the circuit board. A circuit board has an edge mechanically coupled to the inner element and electrically connected to the leads by an electrical coupling on the inner element. A heat sink spans at least one side of the circuit board and forming an EMI shielding. An outer cover encloses the heat sink, circuit board, and inner element and coupled to the assembly of the reflector, HID lamp, inner element, and heat sink with each elements of the assembly clipped together.

Abstract: A PAR lamp (10) has a body (12) with an internal reflector surface (14) disposed about a longitudinal axis (16). A cavity (18) is provided at one end (20) of the body (12) and an arc discharge tube (22) that provides a substantially spherical light source is positioned in the cavity (18) and disposed on the longitudinal axis (16). A cover receiving opening (24) is provided at a second end (26) of the body and a cover (27) closes the cover receiving opening (24). A plurality of spiral facets (28) is formed on the internal reflector surface (14), the plurality of spiral facets (28) being sufficient in number to increase the maximum beam candle power and decrease the beam angle when compared to faceted lamps having a lesser number of facets. The number of facets is equal to or greater than 75 and preferably is 100.

Abstract: A PAR lamp (10) has a body (12) with an internal reflector surface (14) disposed about a longitudinal axis (16). A cavity (18) is provided at one end (20) of the body (12) and an arc discharge tube (22) that provides a substantially spherical light source is positioned in the cavity (18) and disposed on the longitudinal axis (16). A cover receiving opening (24) is provided at a second end (26) of the body and a cover (27) closes the cover receiving opening (24). A plurality of spiral facets (28) is formed on the internal reflector surface (14), the plurality of spiral facets (28) being sufficient in number to increase the maximum beam candle power and decrease the beam angle when compared to faceted lamps having a lesser number of facets. The number of facets is equal to or greater than 75 and preferably is 100.

Abstract: A phosphor coating for gas discharge lamps is provided. The phosphor coating contains a nano-size phosphor which promotes adherence of the primary phosphor to the glass envelope. The phosphor coating is applied to the interior surface of the gas discharge lamp using an aqueous suspension containing the primary phosphor, the nano-size phosphor, and an organic binder.