Patents by Inventor Lejun Ren

Lejun Ren 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 device and projector
    Patent number: 12001127
    Abstract: An optical device with a secondary reflecting structure includes a housing that is sealed. A light source, a first reflecting mirror, a lens module, a second reflecting mirror, and a projection lens are arranged in the housing. The first reflecting mirror is adjacent to the light source. The second reflecting mirror is arranged above the first reflecting mirror. The projection lens is adjacent to the second reflecting mirror and is arranged above the light source. The lens module is arranged between the first reflecting mirror and the second reflecting mirror. Light emitted by the light source is reflected by the first reflecting mirror and passes through the lens module to reach the second reflecting mirror, then the light is reflected to the projection lens through the second reflecting mirror. A projector includes a casing and the optical device with the secondary reflecting structure arranged in the casing.
    Type: Grant
    Filed: September 1, 2022
    Date of Patent: June 4, 2024
    Assignee: CRE ELECTRONIC TECHNOLOGY CO., LIMITED
    Inventors: Xiucai Yang, Lejun Ren
  • OPTICAL DEVICE AND PROJECTOR
    Publication number: 20240053665
    Abstract: An optical device with a secondary reflecting structure includes a housing that is sealed. A light source, a first reflecting mirror, a lens module, a second reflecting mirror, and a projection lens are arranged in the housing. The first reflecting mirror is adjacent to the light source. The second reflecting mirror is arranged above the first reflecting mirror. The projection lens is adjacent to the second reflecting mirror and is arranged above the light source. The lens module is arranged between the first reflecting mirror and the second reflecting mirror. Light emitted by the light source is reflected by the first reflecting mirror and passes through the lens module to reach the second reflecting mirror, then the light is reflected to the projection lens through the second reflecting mirror. A projector includes a casing and the optical device with the secondary reflecting structure arranged in the casing.
    Type: Application
    Filed: September 1, 2022
    Publication date: February 15, 2024
    Inventors: XIUCAI YANG, LEJUN REN
  • Projector
    Patent number: D963024
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: September 6, 2022
    Assignee: CRE Electronic Technology Co., Limited
    Inventor: Lejun Ren
  • Projector
    Patent number: D1009127
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: December 26, 2023
    Assignee: CRE ELECTRONIC TECHNOLOGY CO., LIMITED
    Inventor: Lejun Ren