Reflector lamp

Details Reflector lamp Reflector lamp

1982-02-26

1983-12-13

Lechert, Jr., Stephen J.

Illumination

Light source and modifier

Including reflector

362307, 362308, 362309, 362310, 362346, 362347, 362375, F21V 700

Patent

active

044208014

ABSTRACT:
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.

REFERENCES:
patent: 981290 (1911-01-01), Lebby
patent: 1387424 (1921-08-01), Merritt
patent: 1799711 (1931-04-01), Varder
patent: 2629046 (1953-02-01), Liberman
patent: 3431449 (1969-03-01), Hundley
patent: 3443086 (1969-05-01), Rikis
patent: 3835342 (1974-09-01), Freeman
patent: 3900727 (1975-08-01), Hutz
patent: 3944810 (1976-03-01), Grindle
patent: 4041344 (1977-08-01), LaGiusa
patent: 4155110 (1979-05-01), Armstrong et al.
patent: 4218727 (1980-08-01), Shemitz
Elmer, William, 1974, The Optical Design of Reflectors, pp. 210-216.

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