Camera optical lens comprising seven lenses of +--+-+-, ++-+-+- or ++---+- refractive powers
US11137578B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2019 |
| Grant date | Oct 5, 2021 |
| Priority date | — |
| Expiry date | Mar 25, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B9/64
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens made of a plastic material; a second lens made of a plastic material; a third lens made of a plastic material; a fourth lens made of a glass material; a fifth lens made of a plastic material; a sixth lens made of a plastic material; and a seventh lens made of a plastic material. The camera optical lens satisfies following conditions: 1.51≤f1/f≤2.50; 1.70≤n4≤2.20; 2.00≤f3/f4≤2.00; 0.00≤(R13+R14)/(R13−R14)≤10.00; and 0.01≤d7/TTL≤0.20. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.