Internal shield for trough-like reflector

Details Internal shield for trough-like reflector Internal shield for trough-like reflector

1980-12-17

1985-07-23

Nelson, Peter A.

Illumination

Light source and modifier

Including reflector

362307, 362310, 362346, 362349, 362362, F21V 700

Patent

active

045311803

ABSTRACT:
A lighting fixture having a trough-type reflector and further having planar end reflectors, such fixture also including at least one planar shield parallel to the long axis of the trough-type reflector and having an edge parallel to the aiming axis of the fixture. The shield is undercut to permit light emanations from the lamp to be reflected from the entire trough-type reflector. The shield also includes depending points at the points of contact with the end reflectors, thereby preventing light from being reflected from the end reflectors outside of the shield.

REFERENCES:
patent: 1702746 (1929-02-01), Prichard
patent: 3413462 (1968-11-01), Spero
patent: 4229782 (1980-10-01), Ruud et al.
patent: 4242725 (1980-12-01), Douma et al.
patent: 4261030 (1981-04-01), Hernandez
patent: 4293901 (1981-10-01), Hernandez
patent: 4310876 (1982-01-01), Small, Jr. et al.

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