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公开(公告)号：US20170192346A1
公开(公告)日：2017-07-06
申请号：US15397456
申请日：2017-01-03
Inventor： Manabu CHIKAYAMA , Shigekazu YAMAGISHI , Shu NAMBA
CPC classification number: G03B21/16 , G02B26/008 , G03B21/204 , H04N9/3114 , H04N9/3144 , H04N9/3158
Abstract: A cooling device cools down a wheel having a disc shape. The wheel is hermetically enclosed in an enclosure and rotationally driven about a rotation shaft. The cooling device includes blade members that are disposed on one surface of the wheel, a heat dissipater to which a gas heated by the wheel is blown by the blade members due to rotation of the wheel, and a gas flow definer that is located inside the enclosure, and separates a flow path along which the gas that has been cooled by the heat dissipater flows before being blown to the one surface and a flow path along which the gas that has been blown to the one surface and heated flows.
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公开(公告)号：US20230046063A1
公开(公告)日：2023-02-16
申请号：US17979276
申请日：2022-11-02
Inventor： Shigekazu YAMAGISHI , Toshihiko MATSUDA , Shu NAMBA
Abstract: A cooling device of a projection display apparatus includes a first heat receiving unit including an opening that is rectangular. The first heat receiving unit includes a flow path part that forms the opening. An image display element of the projection display apparatus includes a first front face located in front of a reflective image display, a second front face parallel to the first front face and located behind and outside the first front face, and a first side face located between the first front face and the second front face. The first front face is inserted into the opening, and the flow path part is in contact with the first side face and the second front face via a heat conductive member. The flow path part includes a front face that is flush with or in front of the first front face of the image display element.
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