Patent · US Active

Ocular optical system

US10527819B2 · kind B2 · utility

1Cited by

2References

20Claims

0Family size

Assignee

GENIUS ELECTRONIC OPTICAL CO., LTD. · TW

Inventors

Matthew Bone · Fremont, US
Baina Chen · Fujian, CN
Yanbin Chen · Taichung, TW

Key dates

Filing date	Jan 25, 2017
Grant date	Jan 7, 2020
Priority date	—
Expiry date	Jan 25, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG02B2027/0134
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An ocular optical system includes a first lens element of a display-side surface with a convex portion in a vicinity of its periphery, a second lens element of positive refractive power and an eye-side surface with a concave portion in a vicinity of its periphery, a third lens element of negative refractive power and an display-side surface with a concave portion in a vicinity of an optical-axis, or a fourth lens element of an display-side surface with a concave portion in a vicinity of the optical-axis.

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