Invention Grant
- Patent Title: Optical filter comprising a variable transmittance layer
- Patent Title (中): 光学滤波器包括可变透射层
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Application No.: US14404581Application Date: 2013-05-29
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Publication No.: US09588358B2Publication Date: 2017-03-07
- Inventor: Neil Robin Branda , Zachary Bryce Erno , Jeremy Graham Finden , Duhane Lam , Charles Joseph Gongming Loo , Jonathan Ross Sargent , Matthew Paul Smit , Peter Alexander Von Hahn , Douglas Malcolm Wiggin
- Applicant: Switch Materials Inc.
- Applicant Address: CA Burnaby
- Assignee: SWITCH MATERIALS, INC.
- Current Assignee: SWITCH MATERIALS, INC.
- Current Assignee Address: CA Burnaby
- Agency: Seed IP Law Group LLP
- International Application: PCT/CA2013/000522 WO 20130529
- International Announcement: WO2013/177676 WO 20131205
- Main IPC: G02F1/01
- IPC: G02F1/01 ; G02B5/22 ; G02F1/17 ; B32B37/12 ; B32B17/10 ; B60J3/04 ; G02C7/10 ; E06B9/24

Abstract:
An optical filter comprising a variable transmittance layer having a first spectrum in a dark state, and a second spectrum in a faded state; and a color balancing layer having a third spectrum; each of the first, second and third spectra comprising a visible portion; the first and third spectra combining to provide a dark state spectrum approximating a dark state target color, and the second and third spectra combining to provide a faded state spectrum approximating a faded state target color. The optical filter may further comprise a light attenuating layer. The optical filter may further comprise part of a laminated glass.
Public/Granted literature
- US20150109651A1 OPTICAL FILTER COMPRISING A VARIABLE TRANSMITTANCE LAYER Public/Granted day:2015-04-23
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