Patent · US Active

Lens

US11237309B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

RAYS OPTICS INC. · TW

Inventors

Chen-Cheng Lee · Ji'an, TW
Chen-Yi Tsai · Hengshan, TW
Shin-Jen Wang · Dashulong, TW
Kuo-Hsiang Hung · Hengshan, TW
Chih-Ling Lin · New Taipei, TW
Meng-Wei Lin · Taichung, TW
Yu-Chia Lu · Hengshan, TW

Key dates

Filing date	Nov 14, 2019
Grant date	Feb 1, 2022
Priority date	—
Expiry date	Jul 27, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG02B5/005
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A lens including a filter, an aperture stop, and a lens set sequentially arranged along a first direction is provided. The filter includes a central region and a peripheral region. The central region has a first light transmission band for a wavelength range of a visible light and a second light transmission band for a wavelength range of an infrared light. The peripheral region surrounds the central region. The peripheral region has a third light transmission band for the wavelength range of the infrared light and is substantially opaque to the visible light, and an area of one portion of the central region surrounded by the peripheral region is tapered toward the first direction.

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