Patent ID: 8360612
Filing Date: 2013-01-29
Classification: F21V,F21W,F21Y,G08B

Abstract:
1. A method of operating a Laser Lighting Apparatus comprising, using a diffraction grating of the Laser Lighting Apparatus to light small areas for broad illumination for limited lighting infrastructure, wherein the diffraction grating diffracts laser light into a plurality of beams for producing broad ranged night light with limited shadows, at a distance D, a displacement y of each beam from a central line of the diffraction grating is equal to an order m of the beam times a wavelength λ of the laser light times the distance D divided by a slit separation d of the diffraction grating, and the illumination creates a three dimensional visual effect including lighting dots and lighting lines and the visual effect is a visual plan appearing parallel to two axes of a rectilinear scene.