A dual-channel sunload sensor capable of sensing the intensity and directionality
of the solar radiative power entering the cabin of a car through the windshield,
for the purpose of providing information to the data processing system of the car
that enables a control of the air conditioning system that optimizes the comfort
of the driver and of the front passenger. Signals from the sensor offer reliable
indications of the solar load power and directionality for a wide range of angular
positions of the sun. The sensor includes two convex transparent parts collecting
light each toward a respective photodiode, the transparent parts being separated
by an opaque portion.
