Lighting apparatus
OwnerRandal Waltoninventor
Life of this patent
Estimating the term…
Abstract
A lighting apparatus including a reflector having a reflective surface partially enclosing an interior space and defining a focal point within the interior space, and a filament positioned substantially within the interior space. In some examples, the filament is made substantially of tungsten. In some examples, the reflective surface extends along a longitudinal axis and curves around the longitudinal axis. In some examples, the reflective surface defines an elliptical paraboloid. In some examples, the filament may be placed substantially at the focal point of the reflective surface.
Claims20
A lighting apparatus comprising:
- a reflector having a reflective surface partially enclosing a reflector interior space and defining a focal point within the reflector interior space;
- a base electrically connected to a power source;
- and
- a light source including a filament that is electrically connected to the base;
- wherein the light source is configured to generate light by passing an electrical current through the filament.
A lighting apparatus comprising:
- a reflector having a reflective exterior surface partially enclosing a reflector interior space and defining a focal point within the reflector interior space;
- and
- an incandescent light source placed substantially at the focal point of the reflective exterior surface.
A lighting apparatus, comprising:
- a clear envelope defining an enclosed volume;
- a light source mounted within the enclosed volume;
- a reflective coating applied to a portion of the clear envelope and at least partially surrounding the light source;
- and
- a base electrode electrically connected to the light source.
Dependencies are inferred from the claim text.