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Patent Searching and Data


Title:
PROJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/010275
Kind Code:
A1
Abstract:
A projection device, comprising: a projection lens (100); an optical machine module (200) connected to the projection lens, and used for generating a projection image and projecting the projection image to a display device (10) by means of the projection lens; and a correction component (300) connected to the optical machine module, and used for performing automatic calibration when the optical machine module rotates in the direction of a projection axis of the optical machine module, to enable a horizontal axis of the optical machine module to be always horizontal and a vertical axis of the optical machine module to be always vertical. The structure can calibrate the image when the projection device rotates in the direction of the projection axis. During the whole calibration process, no manual operation is required, so that the labor cost is reduced, and the calibration efficiency and accuracy are improved.

Inventors:
YANG JINGTANG (CN)
Application Number:
PCT/CN2016/097767
Publication Date:
January 18, 2018
Filing Date:
September 01, 2016
Export Citation:
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Assignee:
ZTE CORP (CN)
International Classes:
H04N5/74; H04N9/31
Foreign References:
CN205092918U2016-03-16
CN1806436A2006-07-19
JP2016062008A2016-04-25
CN102300070A2011-12-28
CN105093789A2015-11-25
CN202870456U2013-04-10
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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