Off-axis hybrid surface three-mirror optical system
US10642010B2 · kind B2 · utility
2Cited by
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Key dates
| Filing date | Dec 14, 2017 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Jun 27, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0012
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An off-axis hybrid surface three-mirror optical system comprises a primary mirror, a secondary mirror, a tertiary mirror, and an image sensor. A reflective surface of the primary mirror is a sixth-order polynomial freeform surface of xy. A reflective surface of the secondary mirror is a sixth-order polynomial aspheric surface of xy. A reflective surface of the a tertiary mirror is a spherical surface of xy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.