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:
Sep. 03, 2019
Filed:
Apr. 02, 2018
Robert Alfano, New York, NY (US);
Richard Gozali, New York, NY (US);
Ethan Bendau, New York, NY (US);
Thien-an Nguyen, Corning, NY (US);
Sandra Mamani, White Plains, NY (US);
Robert Alfano, New York, NY (US);
Richard Gozali, New York, NY (US);
Ethan Bendau, New York, NY (US);
Thien-An Nguyen, Corning, NY (US);
Sandra Mamani, White Plains, NY (US);
Other;
Abstract
The production of orbital angular momentum (OAM) using an electrically-tunable q-plate, spiral phase plate or spatial light modulator, as well as a phase mask that can act as a spatial frequency filter, provides a simple, efficient method of edge contrast in biological, objects and medical sample imaging for histological evaluation of tissue, smears, PAP and histopathological samples. An OAM instrument produces OAM situated at the Fourier plane of a 4F lens system, similar to the use of a high-pass spatial filter, allows the passage of high spatial frequencies and enables the production of an image with highly illuminated edges contrasted against a dark background for both opaque and transparent objects.