CPC G01J 1/4228 (2013.01) [E06B 9/24 (2013.01); E06B 9/68 (2013.01); G01J 1/0271 (2013.01); G01J 1/0474 (2013.01); G01J 5/10 (2013.01); E06B 2009/2464 (2013.01); E06B 2009/2476 (2013.01); E06B 2009/6818 (2013.01); G01J 2001/4266 (2013.01)] | 21 Claims |
1. A device comprising:
a housing;
a ring of first photosensors positioned in the housing and having a central axis, wherein each of the ring of first photosensors has an angle of view oriented radially outward from the ring, the angle of view of each of the ring of first photosensors overlapping the angle of view of each of two respective immediately adjacent first photosensors;
at least one light-diffusing element disposed around a periphery of the ring of first photosensors;
at least one second sensor positioned in the housing and having an angle of view that at least partially encompasses a direction substantially parallel with the central axis of the ring of first photosensors;
an infrared sensor in the housing and configured to measure sky temperature, wherein the infrared sensor has an axis of orientation that is substantially parallel with the central axis of the ring of first photosensors and faces outward from a top portion of the device during operation to measure the sky temperature based on infrared radiation captured from outside the device; and
a power interface for receiving power from at least one power supply that is configured to power the ring of first photosensors;
wherein the device is configured to send a tint command to select a tint value of an optically switchable device based on sensor data from the ring of first photosensors, the at least one second sensor, the infrared sensor, or a combination thereof.
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