Patent · US Active

Light emitting module and optical lens thereof

US11656497B2 · kind B2 · utility

0Cited by

2References

20Claims

0Family size

Assignee

LEXTAR ELECTRONICS CORPORATION · TW

Inventors

Lung-Kuan Lai · Hengshan, TW
Ting-Kai Chen · Hsinchu, TW
Jiun-Hong Lin · Hsinchu, TW

Key dates

Filing date	May 25, 2021
Grant date	May 23, 2023
Priority date	—
Expiry date	May 25, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG02F1/133611
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An optical lens includes an optical transparent body which has an upper surface, a lower surface, a lateral surface and a lower concave portion. The upper surface includes a central upper concave portion, an outwardly-concave curved surface continuous from the central upper concave portion, and an inwardly-concave curved surface continuous from the outwardly-concave curved surface. The lateral surface is connected between the inwardly-concave curved surface and the lower surface. The lower concave portion is recessed from the lower surface.

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