General Electric Company

John M Putz

Gilbert H Reiling

Alfred J Henderson, Jr

David D Van Horn

David D VanHorn

A reflector lamp comprising a concave reflector having a parabolic rear section, a spherical intermediate section, and a faceted parabolic front section, each section having substantially the same common focal point, and a finite light source located at the substantially common focal point. The reflector sections are dimensioned so that substantially all light rays from the finite light source which are reflected by the spherical intermediate section become re-reflected by the faceted parabolic front section. Additionally the light rays, reflected by the facets, include components thereof which are circumferential about a lamp axis and thereby provide a beam pattern which is substantially circumferentially uniform about the lamp axis.

Reflector lamp

A reflector lamp comprising a concave reflector having a parabolic rear section, a spherical intermediate section, and a parabolic front section, each of the reflector sections having substantially the same common focal point, and a finite light source at the substantially common focal point, the reflector sections being dimensioned so that substantially all light rays from the finite light source which are reflected by the spherical intermediate section become re-reflected by the parabolic front section.

A filament shield for pressed glass reflector lamps is disclosed which comprises an iron base having an aluminum coating thereon heated to produce an FeAl.sub.3 outer layer having a dark, matte finish.

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Twinsburg, OH, United States of America

John M Putz