Compact large aperture optical transmitter/receiver for lidars employing a plurality of cassegrain optics and optical fibers

摘要

A plurality of light concentrators (12) each provide light over an optical fiber cable (23) to a single optical detector (25) in a non-imaging laser radar. Each light detector may comprise a single mirror (29) or a primary mirror (20) and secondary mirror (22). A transmitter (13) within the array may comprise the same configuration as the light concentrators (12) to deliver laser light from fiber optic cables (23, 30) or may comprise a primary mirror (35) with a large hole (38) that delivers laser light to a secondary mirror (37). The array provides a very rugged large aperture which is very short, and which can be increased without any increase in length.