Patent · US Active

Optical lens set

US9958650B1 · kind B1 · utility

4Cited by

1References

19Claims

0Family size

Assignee

Genius Electronic Optical (Xiamen) Co., Ltd. · CN

Inventors

Jinhui Gong · Fujian, CN
Hai Lin · Fujian, CN
Huabin Liao · Fujian, CN

Key dates

Filing date	Dec 13, 2016
Grant date	May 1, 2018
Priority date	—
Expiry date	Dec 13, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG02B27/0025
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An optical-lens-set includes a first lens element of positive refractive power, a second lens element of an image surface with a concave portion near the optical-axis, no air gap between a third lens element and a fourth lens element, at least one of an object surface and an image surface of a fifth lens element being aspherical, both an object surface and an image surface of a sixth lens element being aspherical so that the total thickness ALT of all six lens element, the distance TL from an object surface of the first lens element to the image surface of the sixth lens element and total five air gaps AAG satisfy ALT/AAG≤4.5 or TL/AAG≤5.5.

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