Patents by Inventor Alyssa Bellingham

Alyssa Bellingham 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).

  • Tunable electro-optic filter stack
    Patent number: 10175106
    Abstract: A holographic polymer dispersed liquid crystal (HPDLC) tunable filter exhibits switching times of no more than 20 microseconds. The HPDLC tunable filter can be utilized in a variety of applications. An HPDLC tunable filter stack can be utilized in a hyperspectral imaging system capable of spectrally multiplexing hyperspectral imaging data acquired while the hyperspectral imaging system is airborne. HPDLC tunable filter stacks can be utilized in high speed switchable optical shielding systems, for example as a coating for a visor or an aircraft canopy. These HPDLC tunable filter stacks can be fabricated using a spin coating apparatus and associated fabrication methods.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: January 8, 2019
    Assignee: Drexel University
    Inventors: Adam K. Fontecchio, Sameet K. Shriyan, Alyssa Bellingham
  • TUNABLE ELECTRO-OPTIC FILTER STACK
    Publication number: 20180024004
    Abstract: A holographic polymer dispersed liquid crystal (HPDLC) tunable filter exhibits switching times of no more than 20 microseconds. The HPDLC tunable filter can be utilized in a variety of applications. An HPDLC tunable filter stack can be utilized in a hyperspectral imaging system capable of spectrally multiplexing hyperspectral imaging data acquired while the hyperspectral imaging system is airborne. HPDLC tunable filter stacks can be utilized in high speed switchable optical shielding systems, for example as a coating for a visor or an aircraft canopy. These HPDLC tunable filter stacks can be fabricated using a spin coating apparatus and associated fabrication methods.
    Type: Application
    Filed: August 1, 2017
    Publication date: January 25, 2018
    Inventors: ADAM K. FONTECCHIO, SAMEET K. SHRIYAN, ALYSSA BELLINGHAM
  • Tunable electro-optic filter stack
    Patent number: 9752932
    Abstract: A holographic polymer dispersed liquid crystal (HPDLC) tunable filter exhibits switching times of no more than 20 microseconds. The HPDLC tunable filter can be utilized in a variety of applications. An HPDLC tunable filter stack can be utilized in a hyperspectral imaging system capable of spectrally multiplexing hyperspectral imaging data acquired while the hyperspectral imaging system is airborne. HPDLC tunable filter stacks can be utilized in high speed switchable optical shielding systems, for example as a coating for a visor or an aircraft canopy. These HPDLC tunable filter stacks can be fabricated using a spin coating apparatus and associated fabrication methods.
    Type: Grant
    Filed: October 29, 2011
    Date of Patent: September 5, 2017
    Assignee: Drexel University
    Inventors: Adam K. Fontecchio, Sameet K. Shriyan, Alyssa Bellingham
  • TUNABLE ELECTRO-OPTIC FILTER STACK
    Publication number: 20140354996
    Abstract: A holographic polymer dispersed liquid crystal (HPDLC) tunable filter exhibits switching times of no more than 20 microseconds. The HPDLC tunable filter can be utilized in a variety of applications. An HPDLC tunable filter stack can be utilized in a hyperspectral imaging system capable of spectrally multiplexing hyperspectral imaging data acquired while the hyperspectral imaging system is airborne. HPDLC tunable filter stacks can be utilized in high speed switchable optical shielding systems, for example as a coating for a visor or an aircraft canopy. These HPDLC tunable filter stacks can be fabricated using a spin coating apparatus and associated fabrication methods.
    Type: Application
    Filed: October 29, 2011
    Publication date: December 4, 2014
    Applicant: DREXELL UNIVERSITY
    Inventors: Adam K. Fontecchio, Sameet K. Shriyan, Alyssa Bellingham