Lighting fixture having an optical wave guide and a descartes lens or descartes reflector
First Claim
Patent Images
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.
2 Assignments
0 Petitions
Accused Products
Abstract
A light guiding structure comprising a light guiding element (2) optically connected to a light source (6) and an optical element (10) coupled thereto, wherein the surface of the optical element (10) remote from the light guiding element (2) has the shape of a section (11) of a rotational ellipsoid, wherein a geometric cutting plane of the section (11) extends approximately at right angles to the longitudinal axis of the rotational ellipsoid.
-
Citations
8 Claims
-
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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
Specification