Search Results - stephen jacobs

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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
Magnetorheological Finishing Fluid with Zirconia-Coated Carbonyl Iron for Optics Fabrication
An improved fluid for magnetorheological finishing (MRF) of optical parts is made from carbonyl iron coated with zirconia.Applications:This material is as a long-life polishing agent for use in MRF finishing of optics components. It is also expected to be of use in fluid jet polishing equipment for optical lens fabrication.Advantages:The zirconia-coated...
Published: 10/23/2009   |   Inventor(s): Hong Yang, Rui Shen, Shai Shafrir, Chunlin Miao, Mimi Wang, Joni Mici, John Lambropoulos, Stephen Jacobs
Category(s): Optics