Burns, Doane, Swecker & Mathis
Systems and methods for object detection using beam widening optics
 In exemplary embodiments, a diffraction grating is placed in the beam path of the generated light source. The grating expands the beam's field of view by distributing the transmitted radiation into plural sub-fields. Sub-fields associated with distant objects are set to a greater intensity to ensure reflection of the sub-fields back to the receiver. Sub-fields directed to closer objects have a lesser intensity to avoid detection of false objects. 
IMRA America, Inc.
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B60T G01S B60T G01S G01S
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Carl D.
Leonard