Patent ID: 9285526
Filing Date: 2016-03-15
CPC Classification: F21K,F21V,G02B

Claim Text:
1. A light guiding structure comprising: a light source that outputs a light; a light guiding element optically connected to the light source; an optical element coupled to the light guiding element, wherein a surface of the optical element remote from the light guiding element has a shape of a section of a rotational ellipsoid, wherein a geometric cutting plane of the section extends approximately at right angles to a longitudinal axis of the rotational ellipsoid, wherein the light guiding element is approximately rod-shaped and has a light admitting aperture optically connected to the light source and a light emitting aperture coupled to the optical element, wherein the optical element has a hemispherical section facing the light guiding element; and a reflector at least partially encompasses the hemispherical section, wherein a section of the surface of the optical element is mirrored to reflect substantially all of the light from the light source towards the reflector.