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:
Jul. 28, 1981
Filed:
Mar. 09, 1979
James S Shreve, Fairfax, VA (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
A coherent optical processor device comprised of a monolithic mass of traarent optical material. The device is built up of a plurality of modules, each having a curved reflective surface for performing a Fourier transform operation and a V-shaped reflective surface, for reflecting the beam and directing it to the next module. Plates or masks for changing the amplitude and/or phase of the beam may be inserted in air gaps between contiguous modules. The device provides absolute path length constancy, is not vulnerable to the adverse effects of dust, and minimizes the multiple reflections ordinarily produced at air-glass interfaces.