Holographic transmission beam director

Details Holographic transmission beam director Holographic transmission beam director

1996-09-18

1999-02-16

Oen, William

Optics: measuring and testing

Velocity or velocity/height measuring

With light detector

G01P 336

Patent

active

058726217

ABSTRACT:
The present invention applies to the art of wind sensing using lidar, and in particular to the art of detecting the speed of objects such as air-borne particles and molecules in the atmosphere in order to determine the speed and direction of the wind which is carrying them. The present invention is a beam director for directing a beam transmitted from a lidar at objects to produce backscattered light and for directing the backscattered light into a lidar receiver. The preferred embodiment of the director comprises a rotatable holographic optical element for directing the transmitted beam in various directions, and then through the same rotatable holographic optical element direct backscattered light from various directions into a receiver. In one alternative embodiment of the director, a prism is disposed in the director for directing the transmitted beam. The lidar having the beam director is moved in a vehicle such as a satellite, so that wind characteristics such as wind speed and direction at a number of altitudes and over a large area can be measured.

REFERENCES:
patent: 5255065 (1993-10-01), Schwemmer

Affiliated with

Also associated with

Rating

Holographic transmission beam director does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Holographic transmission beam director, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Holographic transmission beam director will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2066967