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Title:
AUTOMATIC FOLLOW FOCUS FOR CAMERA DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/232800
Kind Code:
A1
Abstract:
An automatic focus controller is disclosed. The automatic focus controller includes a first imaging element configured to generate a first image of a light source, a second imaging element configured to generate a second image of the light source, and a distance parameter generator configured to generate, based on the first image, the second image, and geometric and optical characteristics of the first imaging element and the second imaging element, a distance parameter representing a distance between the light source and the automatic focus controller.

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Inventors:
QIAN HAO (CN)
Application Number:
PCT/CN2018/090484
Publication Date:
December 12, 2019
Filing Date:
June 08, 2018
Export Citation:
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Assignee:
HANGZHOU TARUO INFORMATION TECH CO LTD (CN)
International Classes:
H04N5/232; G01C3/26
Foreign References:
CN206541271U2017-10-03
CN101561266A2009-10-21
CN101270978A2008-09-24
CN206282232U2017-06-27
CN106780617A2017-05-31
CN101604109A2009-12-16
Attorney, Agent or Firm:
ZHEJIANG INPRO LAW FIRM (CN)
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