Title:
OPTICAL FILTER AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/065627
Kind Code:
A1
Abstract:
An optical filter and a manufacturing method therefor. The optical filter comprises a substrate (1), and a band-pass film (2) and an antireflection film (3) which are provided on two sides of the substrate (1); and the band-pass film (2) and the antireflection film (3) are both formed by alternately arranging high and low refractive index film layers. At an incident angle of 0°-50°, the transmittance of the optical filter within a wave band of 1000 nm-2000 nm is 95% or above. The optical filter can achieve high transmittance within a wave band of 1000 nm-2000 nm and at an incident angle of 0°-50°.
Inventors:
FANG YEQING (CN)
HE QIANQIAN (CN)
MA KE (CN)
GUO JINGCHAO (CN)
ZHANG JIANBAO (CN)
DING WEIHONG (CN)
YANG WEI (CN)
PENG LIUYANG (CN)
HUO HENG (CN)
GUO JINGSHAO (CN)
DONG WENRUI (CN)
LI YUN (CN)
HE QIANQIAN (CN)
MA KE (CN)
GUO JINGCHAO (CN)
ZHANG JIANBAO (CN)
DING WEIHONG (CN)
YANG WEI (CN)
PENG LIUYANG (CN)
HUO HENG (CN)
GUO JINGSHAO (CN)
DONG WENRUI (CN)
LI YUN (CN)
Application Number:
PCT/CN2022/089447
Publication Date:
April 27, 2023
Filing Date:
April 27, 2022
Export Citation:
Assignee:
XINYANG SUNNY OPTICS CO LTD (CN)
International Classes:
G02B5/28
Foreign References:
| CN213091919U | 2021-04-30 | |||
| CN111736251A | 2020-10-02 | |||
| US20030128430A1 | 2003-07-10 | |||
| CN113900171A | 2022-01-07 | |||
| CN113820775A | 2021-12-21 |
Attorney, Agent or Firm:
CREDOIP INTELLECTUAL PROPERTY AGENCY (CN)
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