CPC G02F 1/163 (2013.01) [E06B 9/24 (2013.01); G05B 15/02 (2013.01); E06B 2009/2417 (2013.01); E06B 2009/2464 (2013.01)] | 40 Claims |
1. A method of controlling an environment of a building comprising a tintable window, the method comprising:
transitioning, or generating a schedule to transition, tint of the tintable window to a tint level determined based at least in part on (I) a calculated penetration depth of direct sunlight through the tintable window at a future time and/or (II) a calculated irradiance at the tintable window at a future time; and
determining the tint level determined by incrementally decreasing a tint level until an actual irradiance based at least in part on sensor readings is at most the calculated irradiance at the future time for clear sky conditions.
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