Camera optical lens including five lenses of +−−+− refractive powers
US11480772B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2020 |
| Grant date | Oct 25, 2022 |
| Priority date | — |
| Expiry date | Jun 15, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/06
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present disclosure provides a camera optical lens satisfying following conditions: −0.35≤f1/f2≤−0.25; 1.20≤(f1+f4)/f≤1.30; 0.18≤d1/f≤0.22; 2.80≤R3/f≤3.50; and −0.28≤(R9+R10)/(R9−R10)≤−0.24, where f denotes a focal length of the camera optical lens; f1, f2 and f4 respectively denote a focal length of a first, second and third lenses; d1 denotes an on-axis thickness of the first lens; R3 and R9 respectively denote a curvature radius of an object-side surface of the second and fifth lenses; and R10 denotes a curvature radius of an image-side surface of the fifth lens. The camera optical lens has a good optical performance and further meets the design requirements of wide angle and ultra-thinness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.