Compact folded-optics illumination lens
First Claim
1. A method of manufacturing an optical device, comprising the steps of:
- generating a two-dimensional representation of at least three active optical surfaces of an optical device, comprising the steps of;
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.
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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.
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Citations
16 Claims
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1. A method of manufacturing an optical device, comprising the steps of:
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generating a two-dimensional representation of at least three active optical surfaces of an optical device, comprising the steps of;
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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for generating an optical beam, comprising the steps of:
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refracting initial light;
internally reflecting the light;
again internally reflecting the light; and
refracting the light producing an output light that is at least partially collimated. - View Dependent Claims (13, 14)
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15. A method of manufacturing an optical device that convert a first distribution of an input radiation to a second distribution of output radiation, comprising:
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providing a two-dimensional model that describes a first distribution of an input radiation as an input bundle of edge rays and the second distribution of an output radiation as an output bundle of edge rays, and representing the input and output edge ray bundles each in a phase-space representation in terms of the position of each ray in space;
defining a two-dimensional representation of three active optical surfaces responsive to the boundary conditions of the phase-space representations, including successively calculating segments of at least a first and second surfaces; and
symmetrically extending said two-dimensional representation of said optical surfaces to provide a three-dimensional optical device.
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16. An optical device that converts a first distribution of an input radiation to a second distribution of output radiation, comprising:
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first, second and third active surfaces, wherein the first and second surfaces are opposing active non-spherical optical surfaces, where the first, second and third active surfaces are defined by a two-dimensional representation that is symmetrically extended to provide a three-dimensional device; and
the first and third active surfaces provide transitions for the first and second radiation between an exterior and interior of a body of the three-dimensional device defined by the first, second and third surfaces.
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Specification