Illumination – Light source and modifier – With sealing means or artificial atmosphere
Patent
1979-07-30
1982-06-22
Nelson, Peter A.
Illumination
Light source and modifier
With sealing means or artificial atmosphere
362299, 362308, 362310, 362329, 362346, 362350, F21V 2900
Patent
active
043365787
ABSTRACT:
An improved plastic reflector member for a parabolic aluminized reflector (PAR) lamp is disclosed and, in particular, 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 is sufficiently greater in the apex region of said parabolic cavity than in the adjoining wall region to avoid mechanical and heat distortion.
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Bradley Irving
Vodicka Vincent
General Electric Company
Kempton Lawrence R.
McDevitt John F.
Nelson Peter A.
Schlamp Philip L.
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