Title:
IMAGE PROJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/042813
Kind Code:
A1
Abstract:
[Problem] To provide an image projection device capable of efficiently cooling the inside of a housing thereof.
[Solution] Provided is an image projection device that is a short throw projector including a short throw lens serving as a projection lens for projecting an image onto a projection plane, and includes: an optical system unit comprising optical system components including the projection lens; an inlet port, which is provided on the rear surface of the housing that stores the optical system unit, and through which air flows into the housing; an exhaust port, which is provided on the front surface of the housing, and through which the air inside the housing is discharged; and one or more cooling fans provided at the rear surface side of a heat generating component among the optical system components inside the housing.
Inventors:
HASEGAWA HIROSHI (JP)
YAMABE SHIGENARI (JP)
YAMABE SHIGENARI (JP)
Application Number:
PCT/JP2017/021675
Publication Date:
March 08, 2018
Filing Date:
June 12, 2017
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G03B21/16; G03B21/00; H04N5/74
Foreign References:
| JP2009042444A | 2009-02-26 | |||
| JP2009122296A | 2009-06-04 | |||
| JP2013044917A | 2013-03-04 | |||
| JP2014191165A | 2014-10-06 |
Attorney, Agent or Firm:
KAMEYA, Yoshiaki et al. (JP)
Download PDF:
Previous Patent: OPTICAL CONNECTOR
Next Patent: SIGNAL QUALITY ASSESSMENT DEVICE, METHOD FOR GENERATING SIGNAL QUALITY ASSESSMENT VALUE, AND REPRODU...
Next Patent: SIGNAL QUALITY ASSESSMENT DEVICE, METHOD FOR GENERATING SIGNAL QUALITY ASSESSMENT VALUE, AND REPRODU...