Patents by Inventor Nelson V Tabiryan

Nelson V Tabiryan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10955600
    Abstract: A spectrally-selective reflective optical film comprises at least two anisotropic layers, each of the layers having a phase retardation value and an optical axis orientation pattern within the layer; the optical axis orientation patterns exhibiting a discontinuity at the boundary of the at least two layers; and at least one substrate holding the film. At least a part of the anisotropic layers may be chiral. The materials comprising the anisotropic layers may be selected from liquid crystal polymers, azobenzene liquid crystal polymers, liquid crystals, azobenzene liquid crystals, polymer films with stressed birefringence, and combinations thereof. The materials comprising the anisotropic layers may be doped with at least one dopant from the list comprising nanorods, photorefractive nanoparticles, photovoltaic nanoparticles, lasing dyes, and combinations of thereof. The anisotropic layers may be transparent to infrared wavelengths.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: March 23, 2021
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventors: Dean R Evans, Ighodalo U Idehenre, Nelson V Tabiryan, Timothy J Bunning