Invention Grant
- Patent Title: Variable transmittance optical filter and uses thereof
- Patent Title (中): 可变透光率滤光器及其用途
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Application No.: US12813419Application Date: 2010-06-10
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Publication No.: US08441707B2Publication Date: 2013-05-14
- Inventor: Duhane Lam , Neil R. Branda , Andreea Spantulescu
- Applicant: Duhane Lam , Neil R. Branda , Andreea Spantulescu
- Applicant Address: CA Burnaby, British Columbia
- Assignee: Switch Materials, Inc.
- Current Assignee: Switch Materials, Inc.
- Current Assignee Address: CA Burnaby, British Columbia
- Agency: Knobbe Martens Olson & Bear LLP
- Main IPC: G02F1/03
- IPC: G02F1/03
Abstract:
Variable transmittance optical filters capable of transitioning from a light state to a dark state on exposure to UV radiation and from a dark state to a light state with application of an electric voltage are provided. The optical filters comprise a switching material that comprises one or more chromophores that have electrochromic and photochromic properties.
Public/Granted literature
- US20120044560A9 VARIABLE TRANSMITTANCE OPTICAL FILTER AND USES THEREOF Public/Granted day:2012-02-23
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