The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 26, 1988
Filed:
Dec. 15, 1986
Richard A Carreras, Albuquerque, NM (US);
Mark G Baciak, Albuquerque, NM (US);
Elinor L Coates, Albuquerque, NM (US);
Morton Jenks, Corrales, NM (US);
Abstract
In an optically phased array of multiple laser telescopes, the phasing between the telescopes is accomplished by sampling adjacent outgoing wavefronts. The two samples of each wavefront are then combined to form an interference pattern on a camera. This image is then converted to digital signals, employing an error signal representative of the phase difference. It is necessary that the telescopes be pointing in the same direction. This is assured by having each telescope associated with an optical sensor which produces an X or Y tilt error. The X or Y tilt error is corrected by the optical component referred to as the optical path difference adjustor (OPDA). A signal processing circuit is disclosed which receives X and Y tilt error signals, as well as phase error signals, and produces therefrom drive signals which correct and drive the OPDA in an array of multiple laser telescopes.