CONTROLLING TRANSITIONS IN OPTICALLY SWITCHABLE DEVICES

    公开(公告)号:CA3001233A1

    公开(公告)日:2017-04-13

    申请号:CA3001233

    申请日:2016-10-06

    Applicant: VIEW INC

    Abstract: Aspects of this disclosure concern controllers and control methods for applying a drive voltage to bus bars of optically switchable devices such as electrochromic devices. Such devices are often provided on windows such as architectural glass. In certain embodiments, the applied drive voltage is controlled in a manner that efficiently drives an optical transition over the entire surface of the electrochromic device. The drive voltage is controlled to account for differences in effective voltage experienced in regions between the bus bars and regions proximate the bus bars. Regions near the bus bars experience the highest effective voltage. In some cases, feedback may be used to monitor an optical transition. In these or other cases, a group of optically switchable devices may transition together over a particular duration to achieve approximately uniform tint states over time during the transition.

    DRIVING THIN FILM SWITCHABLE OPTICAL DEVICES

    公开(公告)号:HK1206821A1

    公开(公告)日:2016-01-15

    申请号:HK15107266

    申请日:2015-07-29

    Applicant: VIEW INC

    Abstract: Controllers and control methods apply a drive voltage to bus bars of a thin film optically switchable device. The applied drive voltage is provided at a level that drives a transition over the entire surface of the optically switchable device but does not damage or degrade the device. This applied voltage produces an effective voltage at all locations on the face of the device that is within a bracketed range. The upper bound of this range is associated with a voltage safely below the level at which the device may experience damage or degradation impacting its performance in the short term or the long term. At the lower boundary of this range is an effective voltage at which the transition between optical states of the device occurs relatively rapidly. The level of voltage applied between the bus bars is significantly greater than the maximum value of the effective voltage within the bracketed range.

    DRIVING THIN FILM SWITCHABLE OPTICAL DEVICES

    公开(公告)号:CA2880920A1

    公开(公告)日:2014-02-13

    申请号:CA2880920

    申请日:2013-08-05

    Applicant: VIEW INC

    Abstract: Controllers and control methods apply a drive voltage to bus bars of a thin film optically switchable device. The applied drive voltage is provided at a level that drives a transition over the entire surface of the optically switchable device but does not damage or degrade the device. This applied voltage produces an effective voltage at all locations on the face of the device that is within a bracketed range. The upper bound of this range is associated with a voltage safely below the level at which the device may experience damage or degradation impacting its performance in the short term or the long term. At the lower boundary of this range is an effective voltage at which the transition between optical states of the device occurs relatively rapidly. The level of voltage applied between the bus bars is significantly greater than the maximum value of the effective voltage within the bracketed range.

    CONTROLLING TRANSITIONS IN OPTICALLY SWITCHABLE DEVICES

    公开(公告)号:CA2916862A1

    公开(公告)日:2014-12-31

    申请号:CA2916862

    申请日:2014-06-20

    Applicant: VIEW INC

    Abstract: Aspects of this disclosure concern controllers and control methods for applying a drive voltage to bus bars of optically switchable devices such as electrochromic devices. Such devices are often provided on windows such as architectural glass. In certain embodiments, the applied drive voltage is controlled in a manner that efficiently drives an optical transition over the entire surface of the electrochromic device. The drive voltage is controlled to account for differences in effective voltage experienced in regions between the bus bars and regions proximate the bus bars. Regions near the bus bars experience the highest effective voltage.

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