Patent · US Active

Camera lens group including six lenses of ++−+−−, ++−++−, ++−+−+ or −+−++− refractive powers

US11914109B2 · kind B2 · utility

0Cited by

0References

12Claims

0Family size

Assignee

Zhejiang Sunny Optics Co., Ltd · CN

Inventors

Long Li · Shanghai, CN
Fujian Dai · Ningbo City, CN
Liefeng Zhao · 丈亭镇, CN

Key dates

Filing date	Mar 5, 2021
Grant date	Feb 27, 2024
Priority date	—
Expiry date	Jul 1, 2042

Classification

Technology area (CPC G)Physics
CPC primaryG02B13/18
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The present disclosure discloses a camera lens group including, sequentially from an object side to an image side along an optical axis, a first lens having refractive power, a convex object-side surface and a concave image-side surface; a second lens having positive refractive power, a convex object-side surface and a concave image-side surface; a third lens having negative refractive power, a concave object-side surface and a concave image-side surface; a fourth lens having positive refractive power, a convex object-side surface and a concave image-side surface; a fifth lens having refractive power; and a sixth lens having refractive power, a convex object-side surface and a concave image-side surface. An F number Fno of the camera lens group satisfies: Fno≤1.45.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.