Title:
PROJECTION-TYPE IMAGE DISPLAY APPARATUS, FILTER DEVICE, CONTROL DEVICE, AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2018/051666
Kind Code:
A1
Abstract:
[Problem] To provide a projection-type image display apparatus that is capable of more efficiently removing dust collected in a filter. [Solution] This projection-type image display apparatus is provided with: an image projection unit that generates and projects an image; a casing in which at least one suction port is formed and which houses the image projection unit; a flow passage through which outside air taken-in from the suction port flows; a filter that is provided to the flow passage; an impact application unit that strikes the filter; and a control unit that controls the impact application unit so as to strike the filter at the timing when the filter, which is vibrating due to being struck by the impact application unit, moves toward the impact application unit.
Inventors:
MIYAZAKI AKIHIRO (JP)
Application Number:
PCT/JP2017/028195
Publication Date:
March 22, 2018
Filing Date:
August 03, 2017
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G03B21/14; H04N5/74
Domestic Patent References:
| WO2015182029A1 | 2015-12-03 |
Foreign References:
| JP2015051391A | 2015-03-19 | |||
| JP2006208720A | 2006-08-10 | |||
| JP2002502683A | 2002-01-29 |
Attorney, Agent or Firm:
KAMEYA, Yoshiaki et al. (JP)
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