Opto-mechanical scanner with fixed-field ranging device

Details Opto-mechanical scanner with fixed-field ranging device Opto-mechanical scanner with fixed-field ranging device

1987-03-09

1987-12-01

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

250236, 250334, 350 68, G01J 120

Patent

active

047106212

ABSTRACT:
In an opto-mechanical scanner with associated scanning and ranging functions the scanning beam, obtained by line-scanning means and frame-scanning means, and the ranging beam converge on a scanning detector array and on a ranging detector, respectively. According the invention, the scanning and ranging beams traverse an arrangement of fixed optical elements which are arranged to ensure that the beams follow two different optical paths in such a way that the ranging beam traverses the line-scanning means two times. This ensures that the ranging beam has a fixed orientation which is independent of the line-scanning means.

REFERENCES:
patent: 4508422 (1985-04-01), Karlsson
patent: 4542986 (1985-09-01), Berdanier

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