Exelis Inc.

David Charles Jordan

Donald David Gregory

Sheldon David Stokes

A system for measuring movement of an object includes a source of light for emitting a beam; an object for receiving the beam from the source and reflecting the beam; and a reflective optic for receiving the beam reflected from the object and again reflecting the beam at a first angle. The system also includes a receiver for receiving the reflected beam from the reflective optic. When the object moves in distance, the reflective optic reflects the beam at a second angle. The reflective optic may be replaced by an equivalent refractive optic(s). The receiver measures movement of the object, based on a difference between the first angle and the second angle. The reflective optic may include a cylindrical reflective optic, or a spherical reflective optic. The refractive optic(s) may include a plano hemispheric refractive optic, or a meniscus refractive optic. The receiver may include a quad-cell imaging system, or a focal plane array (FPA). The source of light may include a laser, or any collimated beam source.

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Fort Wayne, IN, United States of America

David Charles Jordan