Patents by Inventor Steven Warr

Steven Warr 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).

  • Optical switching with ferroelectric liquid crystal SLMs
    Patent number: 6975786
    Abstract: An optical switch uses two ferroelectric liquid crystal spatial light modulators (10, 11) with an interconnect region in between. The switch uses bulk lenses (2, 8) to focus light from an input fibre array (1) to a first spatial light modulator (10), and from the second spatial light modulator (11) to an output array (9). Each spatial light modulator displays a respective hologram selected from a previously calculated set, to cause a desired switching of light from the input fibre array to the output array.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: December 13, 2005
    Assignee: Thomas Swan & Co. Ltd.
    Inventors: Steven Warr, Kim Leong Tan, William Crossland, Ilias Manolis, Maura Redmond, Timothy Wilkinson, Melanie Holmes, Brian Robertson