Patent · US Active

Optical lens set

US10139596B2 · kind B2 · utility

2Cited by

1References

18Claims

0Family size

Assignee

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

Inventors

Jinhui Gong · Fujian, CN
Tian Fang Gao · Fujian, CN
Meiting He · Fujian, CN

Key dates

Filing date	Dec 13, 2016
Grant date	Nov 27, 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 no air gap between the first lens element and the second lens element, the third lens element of a concave object-side surface near its optical-axis, and the sixth lens element of a convex image-side surface near its periphery. The Abbe number ν3 of the third lens element and the Abbe number ν5 of the fifth lens element satisfy |ν3−ν5|≤25.

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