Light modulator system including relay optics for correcting optical distortions
US9195122B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2013 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | Apr 3, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/185
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A relay lens system is provided. The relay lens system comprises: an air-spaced doublet comprising: a biconvex lens and a negative meniscus lens, an optical axis of the air-spaced doublet offset between the biconvex lens and the negative meniscus lens, each of the biconvex lens, the negative meniscus lens, an air space there between and an offset of the optical axis there between are selected to adjust the coma in an image travelling there through; and, a pair of cylindrical lenses, cylindrical with a relay optical path through the system, each of the pair of cylindrical lenses, and a respective air space there between, selected to adjust the astigmatism in the image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.