Search Results - kenneth marshall

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PCLC Flake Dual-frequency Reverse Drive Mechanism With Low Current Draw
This technology is for PCLC flakes that can be rotated, through different electrical frequencies, to quickly change their orientation, resulting in a change in their reflective properties.Applications: This technology could be used in many displays because the PCLC flakes can provide fast changing images with bright, saturated colors with high reflectivities....
Published: 4/25/2019   |   Inventor(s): Gerald Cox, Kenneth Marshall, Catherine Fromen, Stephen Jacobs
Category(s): Materials
Electrically Addressed Composite Layered Flakes with Angle Dependent Reflectivity for Optical Device Applications
Applications:This invention relates to optical devices in which electrically switchable particles or flakes suspended in a fluid host are used in either active or passive devices with optical properties that can be manipulated and controlled by an electric field for use in information displays, shutters, switchable filters, etc. Advantages:This invention...
Published: 4/25/2019   |   Inventor(s): Kenneth Marshall, Stephen Jacobs, Tanya Kosc
Category(s): Materials
Interferometer on a Chip
Applications:The invention relates to liquid crystal (LC) devices that are used as the active modulation element in phase-shifting Point Diffraction Interferometer (LCPDI) which are used to accurately measure changes in optical path. These modulation elements are constructed to permit a reference beam and an object beam traversing a common optical...
Published: 2/14/2011   |   Inventor(s): Kenneth Marshall
Category(s): Optics