Compact folded-optics illumination lens
First Claim
1. A folded-optics apparatus, comprising:
- a transparent body including a first surface, a second surface and a cavity formed within at least the second surface;
the cavity having a third surface;
the second surface comprising a reflective region extending radially away from the cavity; and
the first surface comprising an annular zone configured to provide internal reflection folding and a refractive transition between the transparent body and an exterior of the transparent body.
2 Assignments
0 Petitions
Accused Products
Abstract
A method for manufacturing an apparatus and the apparatus being configured to convert a first distribution of an input radiation to a second distribution of output radiation. The method consists of the steps of generating a two-dimensional representation of at least three active optical surfaces of an optical device including calculating a segment of a first surface based on edge ray sets as a first generalized Cartesian oval, calculating a segment of an entry surface based on the edge ray set as a second generalized Cartesian oval, calculating a segment of a second surface based on the edge ray set as a third generalized Cartesian oval, and successively repeating the steps of calculating the segment of the first surface and calculating the segment of the second surface in a direction towards a source, and rotationally sweeping the two-dimensional representation about a central axis providing a three-dimensional representation of the optical device.
337 Citations
25 Claims
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1. A folded-optics apparatus, comprising:
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a transparent body including a first surface, a second surface and a cavity formed within at least the second surface;
the cavity having a third surface;
the second surface comprising a reflective region extending radially away from the cavity; and
the first surface comprising an annular zone configured to provide internal reflection folding and a refractive transition between the transparent body and an exterior of the transparent body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification