Ultra-wide-angle lens assembly
US10061101B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2016 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Mar 10, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/06
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An ultra-wide-angle lens assembly that includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens from an object side to an image side of the ultra-wide-angle lens assembly in turn. The first lens has a negative refractive power; the second lens has a refractive power, an object side surface of the second lens is convex, and an image side surface of the second lens is concave; the third lens has a positive refractive power, and an object side surface of the third lens is convex; the fourth lens has a positive refractive power; the fifth lens has a negative refractive power; and the sixth lens has a positive refractive power, and an image side surface of the sixth lens has a proximal portion relative to an optical axis in a concave shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.