Plastic PAR lamp construction

Details Plastic PAR lamp construction Plastic PAR lamp construction

1981-07-16

1987-06-16

Walsh, Donald P.

Illumination

Light modifier

Reflector

362 61, 362267, 362299, 362301, 362329, F21V 700

Patent

active

046740171

ABSTRACT:
An improved plastic reflector member for a parabolic aluminized reflector (PAR) lamp is disclosed and, in particular, the use of said improved plastic reflector member for an all plastic PAR lamp or a PAR lamp which uses said improved reflector member. Said improved plastic reflector member utilizes a variable thickness wall member to form the parabolic shaped cavity wherein the wall thickness of its planar walls is sufficiently greater in the rim sealing region than in the adjoining wall region of said parabolic cavity to avoid mechanical and heat distortion.

REFERENCES:
patent: 3328220 (1967-06-01), Harding
patent: 3898451 (1975-08-01), Murphy
patent: 3960636 (1976-06-01), Moffitt
patent: 4210841 (1980-07-01), Vodicka
patent: 4336577 (1982-06-01), Hanson
patent: 4336578 (1982-06-01), Bradley
patent: 4339790 (1982-07-01), Hanson
patent: 4344120 (1982-08-01), Bradley

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