06896381 is referenced by 140 patents and cites 54 patents.

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.

Title
Compact folded-optics illumination lens
Application Number
10/269479
Publication Number
6896381 (B2)
Application Date
October 11, 2002
Publication Date
May 24, 2005
Inventor
Fernando Muñoz
Madrid
ES
Juan C Miñano
Madrid
ES
Pablo Benitez
Madrid
ES
Agent
Sinsheimer Schiebelhut & Baggett
Thomas F Lebens
Assignee
Light Prescriptions Innovators
CA, US
IPC
G02B 005/10
View Original Source