Patents by Inventor Fang Chuan Ho

Fang Chuan Ho 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).

  • High endurance near-infrared optical window
    Patent number: 5398133
    Abstract: Multilayers of low refractive index amorphous silicon nitride and high refractive index amorphous silicon are interleaved to construct a near-infrared optical filter. For an edge filter, the structure is transparent to near-infrared light and opaque to visible light. For a band-pass filter, the low-pass filter is superimposed with a high-pass filter. Anti-reflection coating can be added to improve the transmittance. These multilayers are deposited with Plasma Enhanced Chemical Vapor Deposition technique.
    Type: Grant
    Filed: October 27, 1993
    Date of Patent: March 14, 1995
    Assignee: Industrial Technology Research Institute
    Inventors: Rung-Ywan Tsai, Fang-Chuan Ho