Patents by Inventor Jiechao CHENG

Jiechao CHENG 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).

  • Visual efficacy measuring method for objects in different light environments
    Patent number: 10746605
    Abstract: The present invention relates to a visual efficacy measuring method for objects in different light environments, which comprises: (a) setting a light environment; (b) measuring a relationship between color temperature and time; (c) a driver visually recognizing a target object; (d) resetting the light environment, and repeating the step (c); (e) processing the visual recognition information data collected by the experiments so as to establish a relationship of the visual recognition time in relation with the light environmental parameters of color temperature, color rendering index and brightness; (f) performing visual efficacy analysis according to the processing results of the visual recognition information data.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: August 18, 2020
    Assignees: Beijing University of Technology (CN), Guizhou Expressway Group Co., Ltd (CN)
    Inventors: Jiangbi Hu, Xiaoyu Li, Xiaojuan Gao, Xiaoqin Zhang, Guiping Guan, Jianmin Wang, Feng Liu, Linxi Gao, Yuanfeng Zhang, Jiamei Liu, Pengfei Xu, Jianlong Cheng, Jiechao Cheng, Ronghua Wang
  • A VISUAL EFFICACY MEASURING METHOD FOR OBJECTS IN DIFFERENT LIGHT ENVIRONMENTS
    Publication number: 20190033140
    Abstract: The present invention relates to a visual efficacy measuring method for objects in different light environments, which comprises: (a) setting a light environment; (b) measuring a relationship between color temperature and time; (c) a driver visually recognizing a target object; (d) resetting the light environment, and repeating the step (c); (e) processing the visual recognition information data collected by the experiments so as to establish a relationship of the visual recognition time in relation with the light environmental parameters of color temperature, color rendering index and brightness; (0 performing visual efficacy analysis according to the processing results of the visual recognition information data.
    Type: Application
    Filed: December 30, 2016
    Publication date: January 31, 2019
    Inventors: Jiangbi HU, Xiaoyu LI, Xiaojuan GAO, Xiaoqin ZHANG, Guiping GUAN, Jianmin WANG, Feng LIU, Linxi GAO, Yuanfeng ZHANG, Jiamei LIU, Pengfei XU, Jianlong CHENG, Jiechao CHENG, Ronghua WANG