Light projection system including an optical assembly for correction of differential distortion
US11002969B2 · kind B2 · utility
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5References
20Claims
0Family size
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Key dates
| Filing date | Jan 8, 2019 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Sep 18, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/011
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light projection system includes a light source configured to emit image light and an optical assembly configured to provide positive optical power to the image light and optically correct the image light. The optical assembly comprises a plurality of optical elements configured to correct differential distortion related to the image light across a field of view (FOV) within a threshold amount. The differential distortion is corrected based in part on asymmetry of the plurality of optical elements relative to an optical axis shared by the plurality of optical elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.