Optical lens assembly and imaging device including five lenses of −++−+, +++−+, −++−− or −+−+− refractive powers
US12422649B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2021 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Jul 31, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/006
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical lens assembly and an imaging device including the optical lens assembly are disclosed. The optical lens assembly, from an object side to an image side along an optical axis may sequentially include: a first lens, a second lens, a third lens, a fourth lens and a fifth lens. The first lens is of meniscus shape, at least one of surfaces of the second lens is a convex surface, one of the third and fourth lens has a positive refractive power, and the other has a negative refractive power, wherein the third lens and the fourth lens are cemented to form an cemented lens, at least one of surfaces of the fifth lens is a concave surface, and at least one of the first lens, second lens or the fifth lens has a positive refractive power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.