公开(公告)号：US20180109717A1

公开(公告)日：2018-04-19

申请号：US15555534

申请日：2016-11-01

Applicant: JRD COMMUNICATION INC.

Inventor： Jia WANG ,  Ling MA

IPC: H04N5/232

CPC classification number: H04N5/23212 ,  G02B7/36 ,  G06T7/571 ,  H04N5/232123

Abstract: Method and apparatus for enabling precise focusing are provided. The method includes obtaining an operation time of the photographing device in real time by a processor, searching a relationship table of preset times and focus range based on the obtained operation time to obtain a focus range corresponding to the obtained operation time; sending the obtained focus range to a driver by the processor, adjusting the distance between a lens and an image sensor based on the focus range by the driver, so that the lens may be located in the focus range, and to adjust the focus range in real time and improve the accuracy of focusing between the lens and the image sensor.