Apparatus for measurement water depth including a...

Details Apparatus for measurement water depth including a... Apparatus for measurement water depth including a...

2006-02-14

2006-02-14

Robinson, Mark A. (Department: 2872)

Optical: systems and elements

Mirror

With support

C359S198100, C356S004010

Reexamination Certificate

active

06997568

ABSTRACT:
A Laser Airborne Depth Sounder (LADS) system for the measurement of water depth is disclosed, the system includes a transmitter and a receiver of laser light having at least two wavelengths so as to receive a first reflection from a water surface and a second reflection from a water bottom, and a mirror (32) adapted to reflect the second reflection laser light and rotate around a major axis (34) and minor axis (36) where the rotation of the mirror (32) around the minor axis (36) is provided by a piezo electric actuator (68). The piezo electric actuator (68) drives the mirror (32) around the minor axis (36) through a mechanical level (72).

REFERENCES:
patent: 4518254 (1985-05-01), Penny et al.
patent: 4576449 (1986-03-01), Ruger
patent: 5642237 (1997-06-01), Miyawaki et al.
patent: 6049407 (2000-04-01), Melville
patent: 6069420 (2000-05-01), Mizzi et al.
patent: 964-512 (1980-04-01), None
patent: 2071581 (1992-08-01), None
patent: WO 02/42792 (2001-11-01), None

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