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US 6,257,737 B1Granted
Low-profile luminaire having a reflector for mixing light from a multi-color linear array of LEDs
OwnerThomas M. Marshall, Michael D. Pashley +1inventors
InventorsThomas M. Marshall, Michael D. Pashley, Stephen Herman
Life of this patent
Estimating the term…
Abstract
A linear array of LED light sources in a plurality of colors is situated along the length of a reflector which is positioned so that it receives substantially all the light within the semi-cone angles of the sources, and is shaped so that it is illuminated substantially uniformly along its width. The reflector may be configured as a smooth Lambertian surface, or may be configured as a curve approximated by a series of flat specular reflecting segments.
Claims18
A luminaire comprising
- a linear array of light injectors comprising at east one injector for emitting light in each of a plurality of colors, each injector emitting rays of light in a cone having a semi-angle θs, said array being parallel to the y-axis of an x-y-z coordinate system, and arranged so that substantially all of said light is emitted in the positive x and z directions, and
- a reflector having a surface with a shape defined by a curve in the x-z plane in the positive x and z directions, said surface being formed by a projection of said curve parallel to the y-axis, said surface being arranged to receive substantially all of said light within the semi-angles θs of the injectors in the array.
Dependencies are inferred from the claim text.