Pancake lens assembly and optical system thereof
US11500217B2 · kind B2 · utility
0Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 2019 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | Nov 25, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0159
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical lens assembly and an optical system is provided. The optical lens assembly includes a first optical element including a partial reflector and a quarter-wave plate and a second optical element including a reflective polarizer. The first optical element and the second optical element form a cavity. The pancake lens assembly further includes a varifocal lens having an adjustable optical power, and the varifocal lens is disposed inside or outside the cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.