Method of freeform imaging system
US9524565B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 26, 2014 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | Mar 4, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0012
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A design method of freeform imaging system is provided. An initial freeform imaging system is provided, the initial freeform image system comprising a first initial surface and a second initial surface spaced from each other. A second surface is constructed by calculating a plurality of second data points of the second surface through a plurality of feature rays based on the given object-image relationship. A first surface is constructed by calculating a plurality of first data points of the first surface based on the given object-image relationship and Fermat's principle, wherein the second surface is fixed. The first surface and the second surface substitute for the first initial surface and second initial surface respectively, and repeating steps list above, wherein the plurality of feature rays are intersecting the image plane at the plurality of ideal image points.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.