Patents by Inventor Yi-Zhi LIN

Yi-Zhi LIN 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).

  • Five-piece wide-angle lens module
    Patent number: 9261680
    Abstract: A five-piece wide-angle lens module includes a first lens, a second lens, a third lens, a stop, a fourth lens and a fifth lens, which are sequentially arranged from an object side to an image side. The first lens has a negative refractive power, a convex surface on the object side, and a concave surface on the image side. The second lens has a negative refractive power and two concave surfaces on both sides. The third lens has a positive refractive power. The fourth lens has a positive refractive power and two convex surfaces on both sides. The fifth lens has a negative refractive power. Thereby, the five-piece wide-angle lens module can provide good image quality even in the environment with severe temperature changes.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: February 16, 2016
    Assignee: KINKO-OPTICAL CO., LTD.
    Inventor: Yi-Zhi Lin
  • FIVE-PIECE WIDE-ANGLE LENS MODULE
    Publication number: 20150077862
    Abstract: A five-piece wide-angle lens module includes a first lens, a second lens, a third lens, a stop, a fourth lens and a fifth lens, which are sequentially arranged from an object side to an image side. The first lens has a negative refractive power, a convex surface on the object side, and a concave surface on the image side. The second lens has a negative refractive power and two concave surfaces on both sides. The third lens has a positive refractive power. The fourth lens has a positive refractive power and two convex surfaces on both sides. The fifth lens has a negative refractive power. Thereby, the five-piece wide-angle lens module can provide good image quality even in the environment with severe temperature changes.
    Type: Application
    Filed: October 7, 2014
    Publication date: March 19, 2015
    Inventor: Yi-Zhi LIN
  • FIVE-PIECE WIDE-ANGLE LENS MODULE
    Publication number: 20150077861
    Abstract: A five-piece wide-angle lens module includes a first lens, a second lens, a third lens, a stop, a fourth lens and a fifth lens, which are sequentially arranged from an object side to an image side. The first lens has a negative refractive power, a convex surface on the object side, and a concave surface on the image side. The second lens has a negative refractive power and two concave surfaces on both sides respectively. The third lens has a positive refractive power. The fourth lens has a positive refractive power and two convex surfaces on both sides respectively. The fifth lens has a negative refractive power. To provide good image quality, the five-piece wide-angle lens module satisfies the following relationships: ?0.6<f2/f3<?0.3, and ?0.25<f4/f5<?0.15.
    Type: Application
    Filed: December 19, 2013
    Publication date: March 19, 2015
    Applicant: Kinko-Optical Co., Ltd.
    Inventors: Yi-Zhi LIN, Sze-Ying CHEN, Yi-Fang CHEN