Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Qiushi Xu0
Yanshun Chen0
Yaohui Li0
Date of Patent
October 25, 2016
0Patent Application Number
144433340
Date Filed
April 21, 2015
0Patent Citations Received
...
Patent Primary Examiner
Patent abstract
Disclosed is a projection ring, including an annular body; a telescopic portion disposed on the annular body; and a projector disposed on the telescopic portion. The location of the projector on the projection ring is easily adjustable, thus it's convenient to adjust the size of the picture as projected or the projection angle.
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