Compact large aperture optical transmitter/receiver for lidars e

Details Compact large aperture optical transmitter/receiver for lidars e Compact large aperture optical transmitter/receiver for lidars e

1994-09-15

1996-03-19

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

2502032, G01C 2102

Patent

active

055005209

ABSTRACT:
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.

REFERENCES:
patent: 3524180 (1970-08-01), Cruse
patent: 4054364 (1977-10-01), Webster
patent: 4227077 (1980-10-01), Hopson et al.
patent: 4282527 (1981-08-01), Winderman et al.
patent: 4297000 (1981-10-01), Fries
patent: 4384198 (1983-05-01), Williamson
patent: 4511755 (1985-04-01), Mori
patent: 4792685 (1988-12-01), Yamakawa

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