Patent ID: 6111359
Filing Date: 2000-08-29
Classification: H01J,H05B

Abstract:
An integrated HID reflector lamp for retrofitting a corresponding incandescent reflector lamp comprising an incandescent filament, a reflector body and a screw base, the reflector lamp having a prescribed outline, total lumens and luminous efficacy, said HID reflector lamp comprising:a shell having a wall enclosing an internal volume, said wall having a circumferential rim portion defining a light emitting opening of said shell and an opposing basal portion, said shell generally tapering with increasingly smaller diameter from said rim portion to said basal portion,a screw base secured on said basal portion,a high pressure arc discharge device arranged relative to said shell,a reflective surface positioned within said shell for reflecting light emitted by said discharge device out through said light emitting opening, anda ballast within said shell body for energizing said discharge device to emit light, said ballast including input terminals connected to said screw base and output terminals connected to said discharge device, said ballast being responsive, when an operating voltage from an ordinary electric utility line that normally powers said incandescent reflector lamp is applied to said shell on said screw base, to ignite and maintain a gas discharge within said discharge device,said integrated HID lamp having an outline substantially entirely within the outline of the corresponding reflector lamp, and having total lumens at least substantially equal to and a luminous efficacy substantially greater than the corresponding reflector lamp.