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Title:
PROJECTION SYSTEM WITH BIDIRECTIONAL OFFSET AXIS
Document Type and Number:
WIPO Patent Application WO/2017/054113
Kind Code:
A1
Abstract:
A projection system with a bidirectional offset axis. With an object surface (202) of a projection lens of a projection system as an object surface plane, and with an intersection point (O1) of an optical axis of the projection lens and the object surface plane as an original point, the object surface plane is divided into four quadrants. An offset axis of an effect display unit (204) of a projection display device in the projection system is set to be greater than 70 percent in the horizontal direction, and greater than 70 percent in the vertical direction as well. Preferably, the offset axis in the horizontal direction and the vertical direction can both be greater than or equal to 100 percent; that is, the effect display unit is set to be located in only one of the quadrants in the object surface plane. In this case, even though such a projection system is placed at a corner position, a projection image (214) still can be adjusted to achieve the best viewing effect for the human eye.

Inventors:
NA QINGLIN (CN)
HUANG YAN (CN)
MAI HAOHUANG (CN)
CHEN LIJUN (CN)
Application Number:
PCT/CN2015/090972
Publication Date:
April 06, 2017
Filing Date:
September 28, 2015
Export Citation:
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Assignee:
PIQS TECH (SHENZHEN) LTD (CN)
International Classes:
G03B21/14
Foreign References:
CN105204275A2015-12-30
CN205015604U2016-02-03
CN102944965A2013-02-27
CN102929082A2013-02-13
CN102096285A2011-06-15
CN202330990U2012-07-11
CN2909743Y2007-06-06
JPH05346559A1993-12-27
Attorney, Agent or Firm:
SHENZHEN REFINED INTELLECTUAL PROPERTY OFFICE (GENERAL PARTNERSHIP) (CN)
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