Patents by Inventor Chang Lun HOU

Chang Lun HOU 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).

  • Lens Assemblies and Actuators for Optical Systems and Methods Therefor
    Publication number: 20190041601
    Abstract: An optical zoom in a small form factor suitable for use in mobile devices such as cell phones, security cameras, and other small-scale imaging systems. One or more Alvarez lens pairs are provided, and moved transversely to the optical axis. The combination of one or more Alvarez lens pairs and the actuator permits a zoom power of at least 3x with a lateral displacement distance of the optical components of approximately five millimeters or less.
    Type: Application
    Filed: August 7, 2017
    Publication date: February 7, 2019
    Inventors: Chang Lun Hou, Koon Lin Cheo, Ming Chou Lin, Yung Yuan Kao
  • Lens assemblies and actuators for optical systems and methods therefor
    Patent number: 9726862
    Abstract: An optical zoom in a small form factor suitable for use in mobile devices such as cell phones, security cameras, and other small-scale imaging systems. One or more Alvarez lens pairs are provided, and moved transversely to the optical axis. The combination of one or more Alvarez lens pairs and the actuator permits a zoom power of at least 3× with a lateral displacement distance of the optical components of approximately five millimeters or less.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: August 8, 2017
    Assignee: DynaOptics LTD, A Public Limited CO.
    Inventors: Chang Lun Hou, Koon Lin Cheo, Ming Chou Lin, Yung Yuan Kao
  • Lens Assemblies and Actuators for Optical Systems and Methods Therefor
    Publication number: 20160018626
    Abstract: An optical zoom in a small form factor suitable for use in mobile devices such as cell phones, security cameras, and other small-scale imaging systems. One or more Alvarez lens pairs are provided, and moved transversely to the optical axis. The combination of one or more Alvarez lens pairs and the actuator permits a zoom power of at least 3× with a lateral displacement distance of the optical components of approximately five millimeters or less.
    Type: Application
    Filed: January 8, 2015
    Publication date: January 21, 2016
    Inventors: Chang Lun HOU, Koon Lin CHEO, Ming Chou LIN, Yung Yuan KAO
  • MINIATURE OPTICAL ZOOM LENS
    Publication number: 20150316748
    Abstract: Miniature zoom lens systems and methods of manufacturing thereof are described. An exemplary system includes a first prism positioned to receive incident light from an entrance to the miniature lens system, at least a first varifocal lens positioned to receive the light that exits the prism, at least one base lens positioned to receive the light after passing through the first varifocal lens, a detector positioned to receive the light after passing through the base lens, and a first actuator configured to move the first varifocal lens in at least a direction perpendicular to propagation axis of the light passing through the first varifocal lens. The miniature lens system has a small z-height and can be implemented in mobile devices such as mobile phones.
    Type: Application
    Filed: May 8, 2015
    Publication date: November 5, 2015
    Inventors: Koon Lin Cheo, Chang Lun HOU