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:
Feb. 13, 2007
Filed:
Jan. 17, 2006
Richard L. Sutherland, Bellbrook, OH (US);
Lalgudi V. Natarajan, Beavercreek, OH (US);
Robert T. Pogue, Pittsburgh, PA (US);
Christina K. Shepherd, Beavercreek, OH (US);
Donna M. Brandelik, New Carlisle, OH (US);
Richard L. Sutherland, Bellbrook, OH (US);
Lalgudi V. Natarajan, Beavercreek, OH (US);
Robert T. Pogue, Pittsburgh, PA (US);
Christina K. Shepherd, Beavercreek, OH (US);
Donna M. Brandelik, New Carlisle, OH (US);
Science Applications International Corporation, San Diego, CA (US);
Abstract
The process described herein offers the optimizing of performance parameters of holograms, such as reducing scattering effects in a polymer-dispersed liquid crystal optical element. In the process, an interfacial tension agent is added to a polymer-dispersed liquid crystal material. The polymer-dispersed liquid crystal material has at least one acrylic acid monomer, at least one type of liquid crystal material, a photoinitiator dye, and a co-initiator. The polymer-dispersed liquid crystal material is subjected to a polymerization. The interfacial tension agent reduces the size of liquid crystal droplets formed within the polymer-dispersed liquid crystal optical element during polymerization.