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DFM Engineering has provided many Electro-Optical-Mechanical
scanner systems used for Light Detection And Ranging
(LIDAR) remote sensing applications.
Typically these scanners are an Alt-Az Coude' form of
a beam director using two flat mirrors.
The major difference between a LIDAR scanner and a beam
director is the scanner has a lower angular
resolution and a higher speed.
The optics may be of lower optical figure because of
the longer wavelengths often used.
The scanners may also incorporate additional electro-optical-mechanical
components such as collimating optics, zoom lenses,
focus motion, fiber feed, etc.
DFM Engineering has designed and manufactured over 30
systems incorporating these features that were used
to measure the atmospheric turbulence.
Three were near a helicopter landing ship where stabilization
of the scanner to correct for a ship's roll, pith, and
yaw has also been provided.
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