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US 7,040,782 B2Granted
Off-axis parabolic reflector
AssigneeGELcore, LLC
InventorMark J. Mayer
Life of this patent
Estimating the term…
Abstract
A lamp (8, 108, 208) includes a reflector (10, 110, 210) with a plurality of off-axis reflector segments (20, 22, 24, 120a, 120b, 220). Each off-axis reflector segment has a focus at a perimeter (12, 112, 112a, 112b, 212) of the reflector. A plurality of light emitting elements (40, 42, 44, 140a, 140b, 240) are disposed at the foci of the off-axis reflector segments.
Claims17
A reflector comprising:
- a sidewall defining a perimeter surrounding an interior region;
- and
- three or more intersecting curved reflective surfaces disposed in the interior region, each curved reflective surface defining an off-axis reflector segment having a focus disposed at the perimeter and oriented to reflect light emanating from its focus out a reflector aperture defined by the sidewall, the three or more intersecting curved reflective surfaces having at least three lines of intersection.
A reflector comprising:
- a sidewall defining a perimeter surrounding an interior region;
- and
- a plurality of intersecting curved reflective surfaces disposed in the interior region, each curved reflective surface being disposed along a portion of the perimeter and defining an off-axis reflector, segment having a focus disposed at the perimeter and oriented to reflect light emanating from its focus out a reflector aperture defined by the sidewall, wherein for each of the plurality of intersecting curved reflective surfaces, a line connecting the reflector segment focus and the portion of the perimeter along which the curved reflective surface defining the reflector segment is disposed passes over at least one other reflector segment.
A lamp comprising:
- a reflector including a plurality of off-axis reflector segments each having a focus at a perimeter of the reflector;
- and
- a plurality of light emitting elements disposed at the foci of the off-axis reflector segments;
- wherein each off-axis reflector segment has its focus disposed at a perimeter of one or more other off-axis reflector segments.
1 more element
A lamp comprising:
- a reflector including a plurality of off-axis reflector segments each having a focus at a perimeter of the reflector;
- and
- a plurality of light emitting elements disposed at the foci of the off-axis reflector segments and defocused relative to the off-axis reflector segments to produce a diverging lamp illumination.
Dependencies are inferred from the claim text.