Lens assembly
US11536933B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 13, 2020 |
| Grant date | Dec 27, 2022 |
| Priority date | — |
| Expiry date | Jan 2, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, all of which are arranged in order from an object side to an image side along an optical axis. The first lens is with positive refractive power and includes a convex surface facing the object side. The second lens is with negative refractive power and includes a concave surface facing the image side. The third lens is with refractive power and includes a convex surface facing the image side. The fourth, fifth, and sixth lenses are with refractive power. The lens assembly satisfies: 2 mm<f5+f6<35 mm, wherein f5 is an effective focal length of the fifth lens and f6 is an effective focal length of the sixth lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.