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US 4,288,847 AGranted
Compound beam illuminating
OwnerWilliam B. Elmerinventor
Life of this patent
Estimating the term…
Abstract
A light source is disposed within a light reflector formed to direct a light beam through an open end of the reflector and light controlling means for projecting a modified light beam from the same reflector.
Claims10
A luminaire comprising,
- a light source,
- a relatively opaque reflector having a principal light emitting opening, said light source being disposed within said reflector for directing a first primary light beam through said opening in a first principal direction of maximum illumination, and
- light moderating means in said reflector for directing a second secondary light beam in a direction of lesser illumination substantially orthogonal to said first principal direction and with a predetermined beam expanse extending beyond the boundaries of said first primary light beam.
Dependencies are inferred from the claim text.