Patents by Inventor Friedrich Daniel WERDEHAUSEN

Friedrich Daniel WERDEHAUSEN 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).

  • Compact telephoto lens having materials with anomalous relative partial dispersion
    Patent number: 11656432
    Abstract: A lens for a camera has a longitudinal axis, a focal length, an installation length in the direction of the longitudinal axis of less than 10 mm, a plurality of refractive optical elements and a stop with a maximum diameter. The focal length of the lens can be in the range of 25 mm to 6 mm, and the ratio of focal length to maximum diameter of the stop can be in the range of 1.4 to 8. At least one refractive optical element can be formed of a material with an Abbe number for which the absolute value of the difference between relative partial dispersion of the material and a normal relative partial dispersion at the Abbe number of the material is at least 0.05.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: May 23, 2023
    Assignee: Carl Zeiss AG
    Inventors: Friedrich Daniel Werdehausen, Hans-Juergen Dobschal, Markus Seesselberg
  • COMPACT TELEPHOTO LENS HAVING MATERIALS WITH ANOMALOUS RELATIVE PARTIAL DISPERSION
    Publication number: 20220260808
    Abstract: A lens for a camera has a longitudinal axis, a focal length, an installation length in the direction of the longitudinal axis of less than 10 mm, a plurality of refractive optical elements and a stop with a maximum diameter. The focal length of the lens can be in the range of 25 mm to 6 mm, and the ratio of focal length to maximum diameter of the stop can be in the range of 1.4 to 8. At least one refractive optical element can be formed of a material with an Abbe number for which the absolute value of the difference between relative partial dispersion of the material and a normal relative partial dispersion at the Abbe number of the material is at least 0.05.
    Type: Application
    Filed: February 15, 2022
    Publication date: August 18, 2022
    Inventors: Friedrich Daniel WERDEHAUSEN, Hans-Juergen DOBSCHAL, Markus SEESSELBERG