Optical lens and head-mounted display device including five lenses of +−−++ refractive powers
US11644650B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2020 |
| Grant date | May 9, 2023 |
| Priority date | — |
| Expiry date | Mar 20, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0081
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical lens and a head-mounted display device including the optical lens are provided. The optical lens includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens sequentially arranged from a light exit side to a light incident side. An image generator is disposed at the light incident side. The optical lens is configured to receive an image light beam provided by the image generator. A stop is formed at the light exit side of the image light beam. At the stop, the image light beam has a minimum light beam cross-sectional area. The technical solution of the invention may be used to shorten an overall length of the optical lens, so as to reduce an appearance volume of the display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.