Title:
PROJECTION DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/042849
Kind Code:
A1
Abstract:
According to one embodiment of the present invention, a projection display device is provided with: a light source optical system, which has a light source unit, a light conversion unit that converts outputted light from the light source unit into light of a wavelength region different from that of the outputted light, and a cooling unit that cools the light conversion unit; and an external housing, which houses the light source optical system, and has a suction port and an exhaust port, with which a linear air flow passage is formed. The light source unit and the light conversion unit are disposed on the air flow passage, and the cooling unit is disposed at a position shifted from the air flow passage.
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Inventors:
MEGURO HIROYUKI (JP)
ISHIGE MASAHIRO (JP)
KUSUI RYO (JP)
ISHIGE MASAHIRO (JP)
KUSUI RYO (JP)
Application Number:
PCT/JP2017/023688
Publication Date:
March 08, 2018
Filing Date:
June 28, 2017
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G03B21/16; G03B21/00; H04N9/31
Foreign References:
| JP2015036708A | 2015-02-23 | |||
| JP2014092599A | 2014-05-19 | |||
| JP2012013897A | 2012-01-19 | |||
| JP2011095388A | 2011-05-12 | |||
| JP2014211462A | 2014-11-13 | |||
| JPH1090811A | 1998-04-10 | |||
| JP2016167894A | 2016-09-15 |
Other References:
See also references of EP 3508914A4
Attorney, Agent or Firm:
TSUBASA PATENT PROFESSIONAL CORPORATION (JP)
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