A multi-axis laser scanner and receiver capable of providing laser scanning inmultiplefields of view using a scanning mirror (17) and a fold mirror (16) with apatterned aperture. Thefold mirror has a transmissive central region and a periphery that isreflective, Such scannerscan be employed in a helicopter to scan in the forward held of view (21) forobstacle detection,and in an upward field of view (25) for air data measurements. Additionalfields of view can beadded, for example, to provide downward scans to detect height above terrainand ground speed.
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