Title:
PROJECTION DIRECTION SWITCHING DEVICE AND IMAGE PROJECTION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2015/019915
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a projection direction switching device allowing easy switching between various directions of a projection light emitted from a projection device, and an image projection apparatus equipped with said a projection direction switch. The image projection apparatus (10) has a projection device (20) capable of emitting a projection light in the direction of a predetermined axis line (L) through a projection lens (24), and a projection direction switching device (50) capable of switching the direction of the projection light emitted from the projection device (20). The projection direction switching device (50) is provided with: a mirror (54) reflecting the incident projection light from the projection device (20); and a position adjusting device (56) capable of rotating the mirror (54) around the axis line (L) and of tilting the mirror (54) in a direction that crosses the axis line (L).
Inventors:
MOTOCHIGAWA HIROYUKI (JP)
Application Number:
PCT/JP2014/070054
Publication Date:
February 12, 2015
Filing Date:
July 30, 2014
Export Citation:
Assignee:
MOTOCHIGAWA HIROYUKI (JP)
NIKKO SHOJI CO LTD (JP)
NIKKO SHOJI CO LTD (JP)
International Classes:
G03B21/28; H04N5/74
Foreign References:
| JP2001305651A | 2001-11-02 | |||
| JP2002090879A | 2002-03-27 | |||
| JP2009180967A | 2009-08-13 | |||
| JP2006133252A | 2006-05-25 | |||
| JP2001075170A | 2001-03-23 | |||
| JP2011150160A | 2011-08-04 | |||
| JP2006195318A | 2006-07-27 |
Attorney, Agent or Firm:
Sakiyama 博教 (JP)
SAKIYAMA, Hironori (JP)
SAKIYAMA, Hironori (JP)
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