Electric lamp and discharge devices – With optical device or special ray transmissive envelope – Reflector
Patent
1994-09-09
1996-02-20
O'Shea, Sandra L.
Electric lamp and discharge devices
With optical device or special ray transmissive envelope
Reflector
313114, 313643, F21V 700, H01J 516
Patent
active
054931703
ABSTRACT:
A reflector lamp having a lens of vitreous material fused to a reflector body of vitreous material. An inner reflector surface of the reflector body includes a reflective coating having a first coating portion extending from the rim of the reflector body and a second coating portion extending from a location spaced from the rim towards a basal end of the reflector body. The second coating portion is a layer of silver and the first coating portion is a layer of material other than silver, such as aluminum, having a higher resistance to damage by high heat in the rim area during fusing of the lens to the reflector body. Higher efficacies are achieved with the silver layer spaced from the rim than with silver covering the entire reflector surface.
REFERENCES:
patent: 1982774 (1934-12-01), Winkler et al.
patent: 2123706 (1938-07-01), Biggs
patent: 2181292 (1939-11-01), Biggs
patent: 2196307 (1940-04-01), Hensel et al.
patent: 2217228 (1940-10-01), Macksoud
patent: 2619430 (1952-11-01), Fink
patent: 2819982 (1958-01-01), Westerveld et al.
patent: 2904451 (1959-09-01), Scott et al.
patent: 3010045 (1961-11-01), Plagge et al.
patent: 3174067 (1965-03-01), Bahrs
patent: 3974413 (1976-08-01), Craig
patent: 4461969 (1984-07-01), Walsh
patent: 4562517 (1985-12-01), Perkin
Spura et al., "Thin Silver Film Coating For Increased Lamp Efficiency", Precious Metals 1981, pp. 259-264.
Moore, "The Influence Of Surface Energy On Thermal Etching", Acta Metallurgica, vol. 6, Apr. 1958, pp. 293-304.
Boyce Walter A.
Cinalli James A.
Kern Edmund R.
Sheppard Jack R.
Shriver Douglas W.
O'Shea Sandra L.
Patel Ashok
Philips Electronics North America Corporation
Wieghaus Brian J.
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