| 主权项 |
1. An integrated light and occupancy sensor device having an overall angular field of view, comprising:
an array of modified LED elements; a segmented filtering aperture means having a slit aperture defined by a slit length and a slit width that is significantly smaller than the array length, the slit aperture means being positioned at a distance away from the linear array and so oriented that the slit length crosses the array in a transverse direction; and a processor operably connected to said array to process light data values corresponding to the light signals, the processor being operable in first and second modes, in the first mode the processor determining from the light data values a quantity representing an average measure of the light incident on the linear array, and in the second mode the processor determining from light data values acquired at different times for corresponding light sensitive elements to detect the existence of an object motion within the overall angular field of view of the sensor. |
