Selectable lens array

Details Selectable lens array Selectable lens array

H - Electricity

05

B

H05B 37/02 (2006.01) G01J 5/08 (2006.01)

Patent

CA 2313366

A lens array for directing infrared to a passive infrared detector having at least two Fresnel lenses mounted on or incorporated into the lens array. Each of lenses has a different infrared detection pattern and the lenses on the array are adapted to be selectively index so that the infrared detection pattern of the array is altered by to indexing. The indexing may be accomplished by rotating the lens array or by the linear movement of the lens array.

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