Lamp reflector

Details Lamp reflector Lamp reflector

1990-02-15

1991-03-26

Husar, Stephen F.

Illumination

Light source and modifier

Including reflector

362339, 362346, F21V 706, F21V 502

Patent

active

050034472

ABSTRACT:
A lamp reflector comprises a dished body having a front opening and a rear aperture for a bulb having a filament. The dished body has an upper paraboloid reflective surface subtending an angle of about 165.degree. at the optical axis. The body also has a lower paraboloidal reflective surface whose optical axis is coincident with. The filament lies on axis. The filament lies in front of the focus of the upper reflective portion but behind the focus of the lower reflective portion. The reflective portions and define an upwardly inclined step portion and a horizontally disposed step portion.

REFERENCES:
patent: 1506339 (1924-08-01), Giff
patent: 3688149 (1972-08-01), Pitkjaan
patent: 4149229 (1979-04-01), Draper
patent: 4506315 (1985-03-01), Maekawa et al.
patent: 4566056 (1986-01-01), Kouchi et al.
patent: 4612608 (1986-09-01), Peitz

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