Patents by Inventor LaiShu Cao

LaiShu Cao 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).

  • Optical imaging lens and electronic device comprising the same
    Patent number: 9191561
    Abstract: An optical imaging lens set includes a first lens element to a plastic fifth lens element from an object side toward an image side along an optical axis. Each first lens and second lens element has positive refractive power. The third lens element has an image-side surface with a convex portion in a vicinity of the optical axis. The fourth lens element has an image-side surface with a convex portion in a vicinity of the optical axis. The fifth lens element has an image-side surface with a concave portion in a vicinity of the optical axis and a convex portion in a vicinity of its periphery.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: November 17, 2015
    Assignee: Genius Electronic Optical Co., Ltd.
    Inventors: Chia-Cheng Lin, Ta-Cheng Fan, LaiShu Cao
  • Optical imaging lens set and electronic device comprising the same
    Patent number: 9036276
    Abstract: An optical imaging lens set from an object side toward an image side along an optical axis in order includes: a first lens element having an image-side surface with a convex portion in a vicinity of its circular periphery, a second lens element having an object-side surface with a convex portion in a vicinity of its optical axis, a third lens element having an object-side surface with a concave portion in a vicinity of its optical axis, a fourth lens element with positive refractive power, and a plastic fifth lens element having an image-side surface with a concave portion in a vicinity of its optical axis.
    Type: Grant
    Filed: June 23, 2013
    Date of Patent: May 19, 2015
    Assignee: Genius Electronic Optical Co., Ltd.
    Inventors: Chin-Wei Liou, ZhengChao Yuan, LaiShu Cao
  • OPTICAL IMAGING LENS AND ELECTRONIC DEVICE COMPRISING THE SAME
    Publication number: 20150103241
    Abstract: An optical imaging lens set includes a first lens element to a plastic fifth lens element from an object side toward an image side along an optical axis. Each first lens and second lens element has positive refractive power. The third lens element has an image-side surface with a convex portion in a vicinity of the optical axis. The fourth lens element has an image-side surface with a convex portion in a vicinity of the optical axis. The fifth lens element has an image-side surface with a concave portion in a vicinity of the optical axis and a convex portion in a vicinity of its periphery.
    Type: Application
    Filed: April 18, 2014
    Publication date: April 16, 2015
    Inventors: Chia-Cheng Lin, Ta-Cheng Fan, LaiShu Cao
  • OPTICAL IMAGING LENS SET AND ELECTRONIC DEVICE COMPRISING THE SAME
    Publication number: 20140218812
    Abstract: An optical imaging lens set from an object side toward an image side along an optical axis in order includes: a first lens element having an image-side surface with a convex portion in a vicinity of its circular periphery, a second lens element having an object-side surface with a convex portion in a vicinity of its optical axis, a third lens element having an object-side surface with a concave portion in a vicinity of its optical axis, a fourth lens element with positive refractive power, and a plastic fifth lens element having an image-side surface with a concave portion in a vicinity of its optical axis.
    Type: Application
    Filed: June 23, 2013
    Publication date: August 7, 2014
    Inventors: Chin-Wei Liou, ZhengChao Yuan, LaiShu Cao