Abstract: A variable focal length microlens system having a base section with a fluid chamber and a fluid pressurization mechanism. A flexible, substantially transparent polymer lens section is fixed above the fluid chamber and the lens section has a curvature providing an initial focal point when in an unstrained state. The fluid chamber is substantially sealed and the fluid pressurization mechanism includes a flexible wall in the base section. The flexible wall may be displaced by magnetic activation, PZT activation of another activating mechanism.
Type:
Grant
Filed:
April 30, 2005
Date of Patent:
April 15, 2008
Assignee:
Louisiana Tech University Research Foundation as a division of the Louisiana Tech University Foundation
Inventors:
Ji Fang, Jackie Chen, Weisong Wang, Kody Varahramyan, R. Alfred Gunasekaran, Mangilal Agarwal
Abstract: A micro-nozzle for generating micro-bubbles. The micro-nozzle includes a liquid inlet forming a liquid path, a gas inlet, and a constricting wall positioned in the liquid path and shaped to abruptly constrict said liquid path to a width of less than approximately 20 um and then gradually diverge.
Type:
Grant
Filed:
May 18, 2004
Date of Patent:
December 4, 2007
Assignee:
Louisiana Tech University Research Foundation as a Division of the Louisiana Tech University Foundation
Abstract: A method for individualizing an Internet/Intranet global directory and for adaptively changing the global directory structure based upon the individual alterations of multiple users. The method provides a default computer directory of prearranged files on a server computer. Client directory customization data is then provided to the server computer. With this information, the default directory is reconfigured into an individualized Internet/Intranet directory by modifying a copy of the default Internet/Intranet directory based upon the directory customization data. Further aspects include the step of updating the client directory customization data based upon user inputs; the step of collecting a history of client directory customization data; or the step of updating the default computer directory based on a history of client customization data.
Type:
Grant
Filed:
December 4, 2001
Date of Patent:
November 7, 2006
Assignee:
Louisiana Tech University Research Foundation as a division of the Louisiana Tech University Foundation
Abstract: A method of patterning self-assembled thin films, including forming a photoresist layer on a substrate and then patterning and etching the photoresist layer. In combination with the etched photoresist layer, a self-assembled layer is formed on the substrate using LbL self-assembly.
Type:
Grant
Filed:
March 13, 2003
Date of Patent:
August 15, 2006
Assignee:
Louisiana Tech University Research Foundation as a Division of the Louisiana Tech University Foundation