公开(公告)号：WO2019036816A1

公开(公告)日：2019-02-28

申请号：PCT/CA2018/051026

申请日：2018-08-24

Applicant: SWITCH MATERIALS INC.

Inventor： SMIT, Matthew P. ,  GIBSON, Ryan J.

IPC: G02F1/01 ,  E06B9/24

CPC classification number: G02F1/0121 ,  B32B17/10211 ,  B32B17/10467 ,  B32B17/10486 ,  B32B17/10495 ,  B32B17/10761 ,  G02F1/0126 ,  B32B17/10 ,  B32B2367/00

Abstract: Methods, systems, and techniques for controlling a variable transmittance optical filter involve determining at least one of a temperature of, color of, and current flowing through the optical filter, and adjusting the voltage applied across the filter in response to at least one of the temperature, color, and current. The transmittance of the optical filter decreases until reaching a minimum on exposure to a first stimulus and increases until reaching a maximum in response to application of a second stimulus, and at least one of the first and second stimuli involves applying a voltage across the filter.