公开(公告)号：US20190191592A1

公开(公告)日：2019-06-20

申请号：US16023243

申请日：2018-06-29

Applicant: Qingdao Hisense Laser Display Co., Ltd.

Inventor： Jie Liu

IPC: H05K7/20 ,  G03B21/16 ,  G05B6/02 ,  F04D27/00 ,  F04D25/06

CPC classification number: H05K7/20209 ,  F04D25/06 ,  F04D27/004 ,  G03B21/00 ,  G03B21/16 ,  G03B21/2033 ,  G05B6/02 ,  G06F1/20 ,  G06F1/206 ,  H05K7/20136

Abstract: A method for starting a heat dissipation fan is disclosed, which includes: driving a fan with a first driving voltage and detecting a rotational speed of the fan; and in response to the rotational speed of the fan being zero, switching a driving voltage of the fan to a second driving voltage, where the second driving voltage is greater than the first driving voltage. The present disclosure can improve operating reliability of a fan for a device.

公开(公告)号：US20190179223A1

公开(公告)日：2019-06-13

申请号：US16205142

申请日：2018-11-29

Applicant: QISDA CORPORATION

Inventor： Chi-Hung Hsiao ,  Tsung-Hsun Wu

IPC: G03B21/20 ,  G03B21/00 ,  G03B21/16

CPC classification number: G03B21/2046 ,  G02B26/008 ,  G03B21/008 ,  G03B21/16 ,  G03B21/2013

Abstract: A projector includes a projection lens, an optical engine, and a light device. The light device has a lighting axis and includes a movable frame, two light sources fixedly disposed on the movable frame, and a driving part kinematically connected with the movable frame. The driving part is disposed in front of the two light sources. The driving part moves the movable frame such that the two light sources moves simultaneously so as to selectively make one of the two light sources emit light along the lighting axis, which avoids single light source operating for long time. The optical engine is disposed close to the light device and has a light entrance axis. The light entrance axis coincides with the lighting axis. The optical engine includes a digital micromirror device that modulates light from the light device to be projected out the projector through the projection lens.

公开(公告)号：US20190179217A1

公开(公告)日：2019-06-13

申请号：US16023225

申请日：2018-06-29

Applicant: Qingdao Hisense Laser Display Co., Ltd.

Inventor： Tiantian Tang ,  Naiwen Hou

IPC: G03B21/16 ,  G03B21/00 ,  G03B21/14

CPC classification number: G03B21/16 ,  G03B21/008 ,  G03B21/145

Abstract: A projection equipment may including a housing arranged with a first opening and a DMD circuit board arranged with a DMD chip on a side facing the housing, where the DMD chip is arranged with an operational region and a non-operational region. The non-operational region may be located in the periphery of the operational region, and the operational region may modulate a portion of a beam that passes through the first opening when the portion of the beam irradiates onto the operational region. A first heat dissipation member may be arranged between the DMD chip and the housing such that there is a space between the first heat dissipation member and the DMD chip. The first heat dissipation member may be arranged with a second opening which provides a passage for the portion of the beam, while blocking the other portion of the beam.

公开(公告)号：US20180364550A1

公开(公告)日：2018-12-20

申请号：US15998759

申请日：2018-08-16

Applicant: Mimono LLC

Inventor： Joseph Christian Rossell

IPC: G03B21/14 ,  G03B21/54

CPC classification number: G03B21/145 ,  B29C39/10 ,  B29K2083/00 ,  B29L2031/3475 ,  F16M11/40 ,  F16M13/022 ,  G03B21/16 ,  G03B21/54 ,  G03B29/00 ,  H04N9/3141

Abstract: A method and apparatus for mounting a projector holder to or placing a projector holder on an object for displaying an image onto a surface is disclosed. The projector holder includes a body within which a projector is at least partially disposed. The body includes one or more pliable appendages that are adapted to be manipulated and deformed from a first configuration to a second configuration. In some embodiments, the body is formed in the shape of an animal.

公开(公告)号：US20180302599A1

公开(公告)日：2018-10-18

申请号：US15947320

申请日：2018-04-06

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Kenta WATANABE

IPC: H04N9/31 ,  G03B21/20 ,  G02B27/09

CPC classification number: H04N9/3161 ,  G02B27/0905 ,  G02B27/0955 ,  G02B27/0961 ,  G02B27/286 ,  G03B21/16 ,  G03B21/2033 ,  G03B21/204 ,  H04N9/3158

Abstract: A wavelength conversion device includes: a substrate; and a phosphor layer on the substrate. The phosphor layer includes: a base material; and a first phosphor and a second phosphor each of which emits fluorescent light when excited by excitation light. Where chromaticity coordinates of the fluorescent light emitted by the first phosphor and chromaticity coordinates of the fluorescent light emitted by the second phosphor are (x1, y1) and (x2, y2), respectively, −0.02≤x1−x2≤0.02 and −0.02≤y1−y2≤0.02 are satisfied. A peak wavelength of an excitation spectrum of the first phosphor is different from a peak wavelength of an excitation spectrum of the second phosphor.

公开(公告)号：US20180299759A1

公开(公告)日：2018-10-18

申请号：US16013945

申请日：2018-06-21

Applicant: FUJIFILM Corporation

Inventor： Hiroshi KUBOYA

IPC: G03B21/20 ,  G02B27/09 ,  G02B9/62 ,  G02B7/04

CPC classification number: G03B21/2066 ,  G02B7/008 ,  G02B7/023 ,  G02B7/04 ,  G02B9/62 ,  G02B13/16 ,  G02B27/0955 ,  G03B21/147 ,  G03B21/16 ,  G03B21/2033

Abstract: A projection lens unit (15) of a projector (10) is disposed in a state in which an optical axis (CL) of the projection lens unit deviates from a center of an image forming panel (14); a first lens holder (43) of a lens barrel (40) includes holding pieces (55a, 55b) that are provided at intervals in a circumferential direction of a first lens group (L1) and are engaged with a first portion (A1) of the first lens group positioned on a side to which the image forming panel is shifted, and a holding piece (55c) that is engaged with a second portion (A2) of the first lens group positioned on a side opposite to the side to which the image forming panel is shifted; and the linear expansion coefficient of each of the holding pieces is lower than the linear expansion coefficient of the holding piece.

公开(公告)号：US20180292738A1

公开(公告)日：2018-10-11

申请号：US15636915

申请日：2017-06-29

Applicant: HONG FU JIN PRECISION INDUSTRY (WuHan) CO., LTD. ,  HON HAI PRECISION INDUSTRY CO., LTD.

Inventor： CHIN-WEN YEH

IPC: G03B21/16 ,  H04N9/31

CPC classification number: G03B21/16 ,  H04N9/3144

Abstract: A projector with inbuilt heat-dispersing properties includes a shell, an illuminating device mounted in the shell, and a cooling module mounted in the shell. The cooling module includes two heat conducting members in close contact with the illuminating device, and a heat insulator in close contact with the bottom end of the shell. Heat generated from the illuminating device is transmitted to the heat conducting member, the heat transmitted to the heat conducting member is transmitted to the bottom end of the shell and the heat is uniformly dispersed on the bottom end of the shell. The heat transmitted to the shell is uniformly transmitted to the heat insulator to be discharged from the projector.

公开(公告)号：US20180284581A1

公开(公告)日：2018-10-04

申请号：US15919495

申请日：2018-03-13

Applicant: SEIKO EPSON CORPORATION

Inventor： Tetsu NAKAYAMA ,  Ryoichi NAKAGAWA ,  Yoshitsugu AKUTAGAWA

IPC: G03B21/14 ,  G03B21/56 ,  G03B21/16

CPC classification number: G03B21/145 ,  G03B21/005 ,  G03B21/16 ,  G03B21/56

Abstract: A projector that projects an image on a screen includes a projection port for projecting the image in a direction tilting to the lower side with respect to the horizontal direction, a housing, and an exhaust panel provided in an exhaust port formed in the housing and configured to restrict a moving direction of the air discharged through the exhaust port. The exhaust port is formed on a right side surface toward a projecting direction of the image in the housing. The exhaust panel forms a channel that connects the inner side and the outer side of the housing. The channel has a tilt coming closer to a direction vertically opposite to the projecting direction of the image and closer to the screen from the inner side toward the outer side.

公开(公告)号：US20180284340A1

公开(公告)日：2018-10-04

申请号：US15919458

申请日：2018-03-13

Applicant: SEIKO EPSON CORPORATION

Inventor： Ryuta KOIZUMI ,  Toshiaki HASHIZUME

IPC: F21V8/00 ,  H01L33/50 ,  H01S5/00 ,  H01S5/022 ,  H01S5/323 ,  H04N9/31 ,  G03B21/20

CPC classification number: G02B6/0073 ,  G02B6/0003 ,  G02B6/0068 ,  G03B21/16 ,  G03B21/204 ,  H01L33/505 ,  H01L33/507 ,  H01S5/005 ,  H01S5/02208 ,  H01S5/02292 ,  H01S5/32341 ,  H04N9/3105 ,  H04N9/3144 ,  H04N9/3155 ,  H04N9/3158 ,  H04N9/3164

Abstract: A light source device includes a first light source configured to emit excitation light having a first wavelength band, a wavelength conversion member having a plurality of surfaces and configured to convert the excitation light made incident from the first light source into converted light having a second wavelength band different from the first wavelength band, and a first light transmissive member provided between the first light source and the wavelength conversion member and configured to transmit the excitation light. The wavelength conversion member includes a first surface on which the excitation light from the first light source is made incident. The first light transmissive member includes, on a surface opposed to the first surface of the wavelength conversion member, a first reflection layer that transmits the excitation light and reflects the converted light. A gap is provided between the first surface and the first reflection layer.

公开(公告)号：US20180267393A1

公开(公告)日：2018-09-20

申请号：US15921071

申请日：2018-03-14

Applicant: CANON KABUSHIKI KAISHA

Inventor： Makoto Nomoto

IPC: G03B21/16 ,  F25B21/02 ,  F25D17/02

CPC classification number: G03B21/16 ,  F25B21/02 ,  F25D17/02 ,  G03B21/2013 ,  G03B21/204 ,  G03B33/12

Abstract: An image projection apparatus is configured to project light modulated by a plurality of light modulation elements and to display an image. The image projection apparatus includes a heat receiver provided to each of the plurality of light modulation elements, and to provide a heat exchange with the light modulation elements and a heat exchange with liquid, a temperature changer configured to change a temperature of the liquid that flows in the heat receiver, a pump configured to pump in and out the liquid, and a flow path configured to circulate the liquid among the pump, the temperature changer, and the heat receiver. Each temperature changer is provided for each heat changer and is provided between a corresponding heat receiver and another heat changer different from the corresponding heat receiver on the flow path.