Color wheel rotation speed detecting module

    公开(公告)号:US09976879B2

    公开(公告)日:2018-05-22

    申请号:US15014193

    申请日:2016-02-03

    CPC classification number: G01D5/3473 G01P3/36

    Abstract: A color wheel rotation speed detecting module is disclosed and includes a color wheel, a motor, a rotation speed detector and a processor. The color wheel includes a first segment and at least one second segment. The motor drives the color wheel to rotate. The rotation speed detector includes an emitter and a receiver. The emitter outputs a light signal to the first segment or the second segment of the color wheel when the color wheel is rotated. When the receiver receives the light signal reflected from the second segment, the receiver outputs a detecting signal correspondingly. When the light signal passes through the first segment and the receiver fails to receive the light signal, the receiver interrupts the output of the detecting signal. The processor receives the detecting signal from the receiver, and obtains the rotating speed of the color wheel according to the detecting signal varied with time.

    LIQUID-COOLING DEVICE HAVING LIQUID-GAS ISOLATION MECHANISM

    公开(公告)号:US20190240598A1

    公开(公告)日:2019-08-08

    申请号:US16042438

    申请日:2018-07-23

    CPC classification number: B01D19/0042 F28F23/02 F28F2265/18

    Abstract: A liquid-cooling device having a liquid-gas isolation mechanism includes a tank, a first conduit, a second conduit, and a liquid-gas isolation mechanism. The tank has an outer wall, a first end, and a second end, and a liquid storage space is surrounded and defined by the outer wall, the first end, and the second end. The first conduit and the second conduit are partially disposed in the tank, and are respectively used for leading the cooling liquid in and out. The liquid-gas isolation mechanism includes at least a baffle disposed in the liquid storage space, and a plurality of flow holes are defined by the baffle and the outer wall. The first conduit, at least one flow hole, and the second conduit are configured as a flow path. Therefore, the gas is prevented from being brought out from the tank by the second conduit and entering the liquid-cooling pump.

    HEAT-DISSIPATING MODULE FOR DIGITAL LIGHT PROCESSING PROJECTOR
    3.
    发明申请
    HEAT-DISSIPATING MODULE FOR DIGITAL LIGHT PROCESSING PROJECTOR 审中-公开
    数字光处理投影仪散热模块

    公开(公告)号:US20140000851A1

    公开(公告)日:2014-01-02

    申请号:US13831339

    申请日:2013-03-14

    Inventor: Hui-Hsiung Wang

    Abstract: A heat-dissipating module includes a thermal conduction structure, at least one heat pipe, and plural fins. The thermal conduction structure includes a connecting part. The connecting part has a first surface and a second surface opposed to the first surface. The first surface is contacted with a digital micromirror device. The heat pipe includes a penetrating part and a suspension arm. The penetrating part runs through the connecting part of the thermal conduction structure from the second surface to the first surface. The penetrating part is contacted with the digital micromirror device. The plural fins are contacted with the suspension arm. After the heat generated by the digital micromirror device is transferred to the suspension arm through the thermal conduction structure and the penetrating part, the heat is transferred from the plural fins to the plural fins and then dissipated to surroundings through the plural fins.

    Abstract translation: 散热模块包括热传导结构,至少一个热管和多个散热片。 导热结构包括连接部分。 连接部分具有与第一表面相对的第一表面和第二表面。 第一表面与数字微镜装置接触。 热管包括穿透部和悬架臂。 穿透部分穿过导热结构的连接部分从第二表面延伸到第一表面。 穿透部分与数字微镜装置接触。 多个翅片与悬架臂接触。 在由数字微镜装置产生的热量通过导热结构和穿透部分转移到悬臂上之后,热量从多个散热片传递到多个散热片,然后通过多个散热片散发到周围。

    Optical excitation device, light source module, and projector using the same
    4.
    发明授权
    Optical excitation device, light source module, and projector using the same 有权
    光学激发装置,光源模块和投影机使用相同

    公开(公告)号:US09046751B2

    公开(公告)日:2015-06-02

    申请号:US13912855

    申请日:2013-06-07

    CPC classification number: G03B21/204 G03B21/2033 H04N9/3161

    Abstract: An optical excitation device for exciting a laser light source includes a wavelength converter and a moving element. The laser light source emits a first light beam. The wavelength converter includes a wheel, a motor connected to the wheel, and a wavelength converting layer disposed on a light receiving surface of the wheel for converting the first light beam with the first wavelength into a second light beam with a second wavelength. The moving element is connected to the wavelength converter for moving the wavelength converter relative to the laser light source. There is a first reaction area between the laser light source and the wavelength converter when only the motor is operated, there is a second reaction area between the laser light source and the wavelength converter when both the motor and the moving element are operated, and the second reaction area is greater than the first reaction area.

    Abstract translation: 用于激发激光源的光学激发装置包括波长转换器和移动元件。 激光光源发射第一光束。 波长转换器包括车轮,连接到车轮的电动机和设置在车轮的光接收表面上的波长转换层,用于将具有第一波长的第一光束转换成具有第二波长的第二光束。 移动元件连接到波长转换器,用于相对于激光光源移动波长转换器。 当只有电动机被操作时,激光光源和波长转换器之间存在第一反应区域,当电机和移动元件都运转时,激光光源和波长转换器之间存在第二反应区域, 第二反应区域大于第一反应区域。

    PHOSPHOR WHEEL HEAT-DISSIPATING MODULE FOR LASER PROJECTION SYSTEM
    5.
    发明申请
    PHOSPHOR WHEEL HEAT-DISSIPATING MODULE FOR LASER PROJECTION SYSTEM 有权
    用于激光投射系统的磷光轮散热模块

    公开(公告)号:US20150009685A1

    公开(公告)日:2015-01-08

    申请号:US14074461

    申请日:2013-11-07

    CPC classification number: G03B21/16 G03B21/204

    Abstract: A phosphor wheel heat-dissipating module for a laser projection system is provided. The phosphor wheel heat-dissipating module includes a phosphor wheel, a plurality of air vents and an impeller. At least one phosphor agent is coated on an outer-ring portion of a first surface of the phosphor wheel. The air vents run through the phosphor wheel. The impeller is disposed on a second surface of the phosphor wheel, and includes an inlet and a first outlet. A laser beam is projected on the outer-ring portion of the phosphor wheel. When the phosphor wheel is rotated at a high rotating speed, an airflow is inhaled into the impeller through the inlet. A first portion of the airflow is blown out through the first outlet, and a second portion of the airflow is transferred to the first surface of the phosphor wheel through the air vents.

    Abstract translation: 提供了一种用于激光投影系统的荧光粉轮散热模块。 荧光轮散热模块包括荧光粉轮,多个通气口和叶轮。 在荧光轮的第一表面的外圈部分上涂覆有至少一种荧光体剂。 通风口穿过荧光轮。 叶轮设置在荧光轮的第二表面上,并且包括入口和第一出口。 激光束投影在荧光轮的外圈部分上。 当荧光轮以高转速旋转时,通过入口将气流吸入叶轮。 气流的第一部分通过第一出口吹出,并且气流的第二部分通过通风口传递到荧光轮的第一表面。

    Projector with temperature sensor and projector protection method

    公开(公告)号:US11422445B2

    公开(公告)日:2022-08-23

    申请号:US16504320

    申请日:2019-07-07

    Abstract: A projector protection method includes: multiple temperature sensors detect temperatures of multiple areas in a projector to obtain multiple temperature parameters respectively; a processor lowers an output power of a laser source when any temperature parameter corresponding to one of areas falls into corresponding one of multiple first temperature intervals and multiple fans in the projector are set to a maximum speed; and the processor turns off the laser source when any temperature parameter corresponding to one of areas falls into corresponding one of multiple second temperature intervals. The second temperature interval and the first temperature interval corresponding to the same temperature parameter are different from each other.

    Optical module
    7.
    发明授权

    公开(公告)号:US11125968B2

    公开(公告)日:2021-09-21

    申请号:US16292888

    申请日:2019-03-05

    Abstract: An optical module is provided. The optical module includes a substrate, an optical element, a cover plate, and a heat-dissipating device. The optical element is disposed on the substrate, wherein the optical element has a first side and a second side opposite the first side. The cover plate is disposed on the second side of the optical element, and extends over the substrate. In addition, the substrate is disposed between the heat-dissipating device and the optical element.

    Digital micro-mirror device with a heat dissipation structure

    公开(公告)号:US10365547B2

    公开(公告)日:2019-07-30

    申请号:US15688246

    申请日:2017-08-28

    Abstract: A digital micro-mirror unit is arranged on a circuit board. A digital micro-mirror device mask surroundingly covers the digital micro-mirror unit. A thermo-insulation element is arranged between the digital micro-mirror unit and the digital micro-mirror device mask. The digital micro-mirror unit is thermally insulated against the digital micro-mirror device mask through the thermos-insulation element. A thermoelectric cooler (TEC) is thermally connected to the digital micro-mirror unit. A thermo-conductive body is attached on the hot side of the TEC. Therefore the digital micro-mirror unit can meet temperature requirements of safety standards and avoid reducing its service life.

    Phosphor wheel heat-dissipating module for laser projection system
    9.
    发明授权
    Phosphor wheel heat-dissipating module for laser projection system 有权
    用于激光投影系统的荧光轮散热模块

    公开(公告)号:US09010971B2

    公开(公告)日:2015-04-21

    申请号:US14074461

    申请日:2013-11-07

    CPC classification number: G03B21/16 G03B21/204

    Abstract: A phosphor wheel heat-dissipating module for a laser projection system is provided. The phosphor wheel heat-dissipating module includes a phosphor wheel, a plurality of air vents and an impeller. At least one phosphor agent is coated on an outer-ring portion of a first surface of the phosphor wheel. The air vents run through the phosphor wheel. The impeller is disposed on a second surface of the phosphor wheel, and includes an inlet and a first outlet. A laser beam is projected on the outer-ring portion of the phosphor wheel. When the phosphor wheel is rotated at a high rotating speed, an airflow is inhaled into the impeller through the inlet. A first portion of the airflow is blown out through the first outlet, and a second portion of the airflow is transferred to the first surface of the phosphor wheel through the air vents.

    Abstract translation: 提供了一种用于激光投影系统的荧光粉轮散热模块。 荧光轮散热模块包括荧光粉轮,多个通气口和叶轮。 在荧光轮的第一表面的外圈部分上涂覆有至少一种荧光体剂。 通风口穿过荧光轮。 叶轮设置在荧光轮的第二表面上,并且包括入口和第一出口。 激光束投影在荧光轮的外圈部分上。 当荧光轮以高转速旋转时,通过入口将气流吸入叶轮。 气流的第一部分通过第一出口吹出,并且气流的第二部分通过通风口传递到荧光轮的第一表面。

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