Vehicle projection lens and vehicle lamp
US11635600B2 · kind B2 · utility
0Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2021 |
| Grant date | Apr 25, 2023 |
| Priority date | — |
| Expiry date | Oct 9, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B9/34
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vehicle projection lens includes a plastic aspheric first lens, an aperture stop, a cemented lens consisting of a glass second lens and a glass third lens, and a glass fourth lens arranged in order from a magnified side to a minified side. An F-number of the vehicle projection lens is smaller than or equal to 0.8, and the vehicle projection lens consists essentially of four lenses respectively with positive, positive, negative and positive refractive powers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.