Title:
PROJECTION AND FOCUSING METHOD, AND PROJECTOR
Document Type and Number:
WIPO Patent Application WO/2017/215070
Kind Code:
A1
Abstract:
A projection and focusing method, and a projector. The projection and focusing method comprises: acquiring initial image information about a projection plane of a projector via dual cameras; according to the acquired initial image information, determining whether the flatness of the projection plane satisfies a pre-set flatness criterion; when it is determined that the flatness of the projection plane satisfies the pre-set flatness criterion, according to the initial image information, acquiring a projection distance between the projector and the projection plane and a focal length adjustment parameter corresponding to the projection distance; and performing focusing according to the focal length adjustment parameter.
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Inventors:
JIANG WEI (CN)
Application Number:
PCT/CN2016/090312
Publication Date:
December 21, 2017
Filing Date:
July 18, 2016
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
G03B21/00
Foreign References:
| JP2007264413A | 2007-10-11 | |||
| CN103782232A | 2014-05-07 | |||
| JP2005229415A | 2005-08-25 | |||
| CN103338342A | 2013-10-02 |
Attorney, Agent or Firm:
AFD CHINA INTELLECTUAL PROPERTY LAW OFFICE (CN)
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