Patents by Inventor An Min Zhao

An Min Zhao 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).

  • Apparatus and method for protecting the optical system of a light fixture
    Patent number: 10508792
    Abstract: An apparatus and method for covering the optical system of a moving head light fixture with a filter or diffuser when the lighting fixture is turned off is provided. The filter or diffuser is positioned in the optical path between a lighting element and a lens. A retraction device is energized to retract the filter or diffuser from the optical path during normal operation. Upon removal of power to the fixture, the filter mechanism automatically returns the filter or diffuser to its position in the optical path. In this way, the optical system of the fixture can be protected from damage caused by impinging strong light and/or sunlight when the fixture is not in use.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: December 17, 2019
    Assignee: Chauvet & Sons, LLC
    Inventors: Qing Feng Chen, An Min Zhao
  • Lighting pod lens
    Patent number: D861970
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: October 1, 2019
    Assignee: Chauvet & Sons, LLC
    Inventors: Qing Feng Chen, An Min Zhao