Title:
OPTICAL FILTER
Document Type and Number:
WIPO Patent Application WO/2022/065678
Kind Code:
A1
Abstract:
The present application can provide an optical filter, which can obtain a sharp visible-light transmission band while effectively and accurately blocking ultraviolet light near a short-wavelength visible light region and infrared light near a long-wavelength visible light region, minimize ripple regardless of incidence angle, and obtain high visible-light transmittance while ensuring the characteristics even if near-infrared ray absorbing glass is used as a substrate.
Inventors:
HEO YOUNG TAE (KR)
Application Number:
PCT/KR2021/010501
Publication Date:
March 31, 2022
Filing Date:
August 09, 2021
Export Citation:
Assignee:
CHANGKANG CHEMICAL CO LTD (KR)
International Classes:
G02B5/20; G02B1/02; G03B17/12; H04N5/225
Foreign References:
| KR20170086018A | 2017-07-25 | |||
| JP2019066742A | 2019-04-25 | |||
| KR20190139316A | 2019-12-17 | |||
| US20190219749A1 | 2019-07-18 | |||
| KR20180033114A | 2018-04-02 |
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