Patent ID: 8269628
Filing Date: 2012-09-18
Classification: F21V,H05B,Y02B

Abstract:
1. A method of controlling illumination of a desired approach area to an object, said method comprising the steps of: a) providing a motion detection module that includes three passive infrared (PIR) motion sensors mounted on a circuit board, each PIR motion sensor being mounted physically independent of each other PIR motion sensor, the combination of said three PIR motion sensors providing a field of detection; and b) shaping said detection field by defining an azimuth angle, an elevation angle, and axial rotation angle for each PIR motion sensor, such that said combination of said three PIR motion sensors provides a desired shape of said field of detection that essentially corresponds to said desired approach area to said object; and c) providing a power switching circuit that interfaces between said motion detection module and an illumination device that provides illumination for said desired approach area;