Patents by Inventor Li-Fu Chuang

Li-Fu Chuang 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).

  • Publication number: 20230075072
    Abstract: A binocular telescope includes a pair of Schmidt-Pechan roof prisms, a second half pentaprism, a right-angle prism, a main circuit board, and an auxiliary circuit board. The second half pentaprism is connected to a first lateral surface of one of the first half pentaprisms. A second lateral surface of the second half pentaprism substantially faces the other first half pentaprism. The third lateral surface of the right-angle prism is connected to the second lateral surface of the second half pentaprism. A normal of the fourth lateral surface of the right-angle prism is perpendicular to an imaginary plane. The imaginary plane includes a normal of the first lateral surface and a normal of the second lateral surface. The light emitter and the light receiver on the auxiliary circuit board are arranged above the fourth lateral surface of the right-angle prism and electrically connected with the main circuit board respectively.
    Type: Application
    Filed: December 1, 2021
    Publication date: March 9, 2023
    Inventors: Li-Fu Chuang, Ping Long