Strip lighting apparatus and method
AssigneeTeledyne Lighting and Display Products, Inc.
InventorsDavid G. Pelka, William A. Parkyn
Life of this patent
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Abstract
An illumination apparatus comprises an elongated waveguide having proximal and distal ends and a central longitudinal axis. The waveguide includes an elongated forward side for outputting light and an elongated rearward side having an elongated reflective surface for reflecting light towards the forward side. A light source such as a solid state light emitter may be situated on the proximal end of the waveguide introduces light into the waveguide in the form of a beam which propagates from the proximal end to the distal end. Light traveling within the waveguide is reflected from the reflective surface along the elongated rearward side towards the forward side for viewing.
Claims15
An illumination apparatus, comprising:
- an elongated waveguide having proximal and distal ends and a central longitudinal axis, said waveguide comprising an elongated forward side for outputting light and an elongated rearward side for reflecting light towards the forward side, said rearward side comprising an elongated reflective surface;
- a source of light comprising a solid state light emitter on the proximal end of the waveguide;
- and
- an optical collimating element disposed between the waveguide and the source of light, which introduces light into the waveguide in the form of a substantially collimated beam having a divergence angle a, said waveguide having a width at the distal end approximately equal to 2 L tan (α), where L is the length of the waveguide between said ends.
Dependencies are inferred from the claim text.