Patent ID: 9255676
Filing Date: 2016-02-09
CPC Classification: F21S,F21V,F21Y

Claim Text:
1. A luminaire comprising: a cylindrical heat sink having an axis with opposed first and second ends and a diameter; a cylindrical base coaxial with the heat sink, the base having an upper end coupled to a first end of the heat sink and having a lower end inclined at a first angle relative to the axis, the base having a diameter similar to the diameter of the heat sink; a light emitting board or chip with a light source thereon joined to the lower end of the base by a ferromagnetic annular member having a flanged rim serving as a reflector holder; and a reflector having an upper surface magnetically joined to the ferromagnetic annular member and rotatable within the flanged rim thereof, the upper surface of the reflector having a central aperture for allowing light from the light source to pass into the reflector and having a radially tapered surface reflective of light into a conical beam, the tapered surface having a narrow open end at the central aperture and an opposed wide end where the beam emerges and further having a lower surface truncating the radially tapered surface at a second angle relative to the axis at the wide end thereof; whereby rotation of the reflector causes additive combination of the first and second angles so that the inclination of the light cone and beam relative to the axis are variable and rotatable with rotation of the base.