Reflector lamp assembly including metal halide arc tube

Details Reflector lamp assembly including metal halide arc tube Reflector lamp assembly including metal halide arc tube

H - Electricity

01

J

H01J 61/34 (2006.01) H01J 61/82 (2006.01)

Patent

CA 2099594

2099594 9210848 PCTABS00013 An electric lamp includes an arc tube assembly (12) mounted in a lamp envelope (10) including a reflector (14), a lens (20) and a base (22) for connection to an electrical source. The arc tube assembly (12) includes an arc tube (30) having a longitudinal axis aligned with the optical axis (16) of the reflector, a light-transmissive shroud (48) disposed around the arc tube (30), first (60) and second (62) clips attached to opposite ends of the arc tube (30), a connection member (64) attached to the first (60) and second (62) clips such that the shroud (48) is retained between the first (60) and second (62) clips in a fixed position relative tothe arc tube (30), and upper and lower electrode supports (50, 52) for mechanically supporting the arc tube (30) in the lamp envelope (10) entirely from the base region and for coupling electrical energy to the arc tube (30). A support ring (66) is positioned in a heel region (68) of the lamp envelope (10) and is attached to the connection member (64). The support ring (66) cushions the arc tube (30) assembly (12) when the lamp is subjected to mechanical shock. The connection member (64) includes a connection rod having a first section (70) located outside the shroud (48) between the first (60) and second (62) clips and a second section (72) extending between the first section (70) and the support ring (66).

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