Optical lens and head-mounted display device
US12111513B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2020 |
| Grant date | Oct 8, 2024 |
| Priority date | — |
| Expiry date | Oct 24, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0172
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical lens and a head-mounted display device are provided. The optical lens includes a first lens, a second lens, a third lens, and a fourth lens sequentially arranged from a light exit side to a light incident side. Refractive powers of the first lens, the second lens, the third lens and the fourth lens are sequentially positive, negative, positive and positive. An image generator is disposed at the light incident side. The optical lens is configured to receive an image beam provided by the image generator. The image beam forms a stop at the light exit side. The stop has the minimum cross-sectional area of beam convergence of the image beam. The optical lens and the head-mounted display device of the disclosure have advantages of smaller size, light weight, large viewing angle and high resolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.