Method and apparatus for controlling an electrochromic device

Details Method and apparatus for controlling an electrochromic device Method and apparatus for controlling an electrochromic device

1998-09-21

1999-10-26

Sugarman, Scott J.

Optical: systems and elements

Optical modulator

Light wave temporal modulation

359267, 359603, 359604, 351 44, 351 45, G02F 1163

Patent

active

059738197

ABSTRACT:
The invention comprises an apparatus and methodology facilitating an accurate, user-friendly system for controlling the charge state (i.e., color level) of an electrochromic device. The invention provides a two button control methodology implemented as a sequential logic controller or, in another embodiment, a microprocessor-based controller. After initiation via, e.g., an external switch, the invention iteratively modifies and measures a charge level of the electrochromic device until an additional switch activation or until a maximal or minimal charge level is achieved.

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