Inhomogeneous concentrated polymer network with approximately 90.degree. twisted nematic liquid crystal (TN-LC) is used for fabricating lens and prisms. For forming a positive lens, the approximately 90.degree. TN-LC polymer network concentration can gradually decrease from the center to the side edges. For forming a negative lens, the approximately 90.degree. TN-LC polymer network concentration can gradually increase from the center to the side edges. The lens can be created by ultra violet (UV) light exposure to patterned photo masks. The lens can be tuned by applying voltage above the threshold voltage to the polymer network. The inhomogeneous 90.degree. TN-LC polymer network can also be used in Fresnel lens and prisms. Applications of the invention can be used for micro lens, array, optical communication, micro-optics, adaptive optics and beam steering.
US 7,079,203 B1
Application Serial Number
Agency: IPX Foundation
Assignee at Issuance
College of Optics and Photonics
Assignee at Filing
Nonprovisional Application Record
Wu, Shin-Tson; Huang, Yuhua; Ren, Hongwen; and Zhu, Xinyu, "Electronically Tunable Polarization-Independent Micro-Lens Polymer Network Twisted Nematic Liquid Crystal" (2006). UCF Patents. 688.