Light source device, projection device, and light source control method

    公开(公告)号:US11019312B2

    公开(公告)日:2021-05-25

    申请号:US16801321

    申请日:2020-02-26

    Abstract: A light source device includes: a first light emitting element that emits first wavelength band light; a fluorescence wheel including a fluorescence emission region with which fluorescence excited by the first wavelength band light is emitted as second wavelength band light; a second light emitting element that emits third wavelength band light; a combining unit that combines the first wavelength band light, the second wavelength band light, and the third wavelength band light; a color wheel; and a CPU that controls the first light emitting element, the second light emitting element, the fluorescence wheel, and the color wheel, wherein the CPU performs synchronization control on the fluorescence wheel and the color wheel, and performs control to shift a synchronization position of the color wheel with respect to the fluorescence wheel in accordance with an output mode.

    Light source unit and projection apparatus

    公开(公告)号:US10976650B2

    公开(公告)日:2021-04-13

    申请号:US16230856

    申请日:2018-12-21

    Inventor: Hiroki Masuda

    Abstract: A light source unit includes: a first light emitting element configured to emit a first wavelength band light; a second light emitting element configured to emit a second wavelength band light; a luminescent wheel configured to have a first fluorescent light emitting region irradiated with the second wavelength band light to emit a third wavelength band light, and a second fluorescent light emitting region that emits a fourth wavelength band light including a wavelength band of the first wavelength band light and the third wavelength band light having a wavelength band adjacent to the first wavelength band light being provided in parallel in a circumferential direction; a color wheel configured to have a second transmissive region that transmits the first wavelength band light to the fourth wavelength band light, and a third transmissive region that transmits only the first wavelength band light or transmits only the first wavelength band light and the second wavelength band light being installed in parallel in the circumferential direction, and synchronously rotate with the luminescent wheel; and a controller configured to cause the second wavelength band light to be emitted in each output period and the first wavelength band light to be emitted in the output period in which the fourth wavelength band light is emitted, in a plurality of output periods in a frame.

    Light source unit and projector
    4.
    发明授权

    公开(公告)号:US10725363B2

    公开(公告)日:2020-07-28

    申请号:US16413685

    申请日:2019-05-16

    Inventor: Hiroki Masuda

    Abstract: A light source unit of the present invention includes a luminescent material plate, a joining plate on one side of which the luminescent material plate is disposed, a heat dissipating member disposed on the other side of the joining plate, and a heat conductive layer configured to thermally connect the joining plate and the heat dissipating member together and disposed between the joining plate and the heat dissipating member, and a heat conductivity of an area of the heat conductive layer which corresponds to the luminescent material plate is lower than a heat conductivity of a periphery of the area of the heat conductive layer which corresponds to the luminescent material plate.

    Light source unit capable of preventing deterioration of luminescent material layer, illuminating method of light source unit, and projector
    6.
    发明授权
    Light source unit capable of preventing deterioration of luminescent material layer, illuminating method of light source unit, and projector 有权
    能够防止发光材料层劣化的光源单元,光源单元的照明方法和投影仪

    公开(公告)号:US09291332B2

    公开(公告)日:2016-03-22

    申请号:US14030982

    申请日:2013-09-18

    Inventor: Hiroki Masuda

    CPC classification number: F21V9/00 G03B21/2006 G03B21/204 G03B33/08 H04N9/3164

    Abstract: There is provided a light source unit including an excitation light source emitting excitation light, and a luminescent member having a transmission portion transmitting excitation light from the excitation light source, a first luminescent material layer placed beside the transmission portion on one side of the luminescent member and a second luminescent material layer placed beside the transmission portion on the other side of the luminescent member, wherein the first luminescent material layer and/or the second luminescent material layer emits luminous light by being excited by the excitation light, and wherein a guiding optical system is provided which shines excitation light which has passed through the transmission portion from the excitation light source on to the first luminescent material layer and causes luminous light emitted from the first luminescent material layer to be incident on the transmission portion.

    Abstract translation: 提供了一种光源单元,其包括发射激发光的激发光源和具有透射激发光源的激发光的透射部分的发光元件,位于发光元件一侧的透射部分旁边的第一发光材料层 以及第二发光材料层,位于所述发光部件的另一侧的所述透射部的旁边,其中,所述第一发光材料层和/或所述第二发光材料层通过被所述激发光激发而发光,并且其中, 提供了将从激发光源穿过透射部分的激发光照射到第一发光材料层并使从第一发光材料层发射的发光入射到透射部分上的系统。

    Light source unit and projector
    7.
    发明授权
    Light source unit and projector 有权
    光源单元和投影机

    公开(公告)号:US09207522B2

    公开(公告)日:2015-12-08

    申请号:US14030972

    申请日:2013-09-18

    Abstract: The invention includes an excitation light source, a light distribution adjusting member on which excitation light from the excitation light source is incident, and a luminescent material which emits luminous light of a different wavelength from that of the excitation light by the excitation light which passes through the light distribution adjusting member being shone on thereto, wherein the excitation light source is disposed so that the excitation light is incident on a light incident surface of the light distribution adjusting member at a predetermined angle.

    Abstract translation: 本发明包括激发光源,来自激发光源的激发光入射的配光调节部件,以及通过激发光通过的发出与激发光不同的波长的发光的发光材料 照射在其上的配光调节构件,其中激发光源被设置为使得激发光以预定角度入射到配光调节构件的光入射表面。

    Fluorescent wheel, light source device and projector
    8.
    发明授权
    Fluorescent wheel, light source device and projector 有权
    荧光灯,光源装置和投影机

    公开(公告)号:US08740390B2

    公开(公告)日:2014-06-03

    申请号:US14086674

    申请日:2013-11-21

    Inventor: Hiroki Masuda

    CPC classification number: G03B21/204 F21V13/08 G03B21/14

    Abstract: A fluorescent substrate includes a base having a reflective surface and a flat bottom surface, and a fluorescent layer disposed on the reflective surface of the base such that the reflective surface of the base directs, outward from the wheel, fluorescence emitted from the fluorescent layer due to its excitation by exciting light. The reflective surface of the base has an array of minute reflective structures formed thereon so as to reflect, outward from the reflective surface, fluorescence emitted substantially parallel to the flat bottom surface of the base from the fluorescent layer.

    Abstract translation: 荧光基板包括具有反射表面和平坦底表面的基底,以及布置在基底的反射表面上的荧光层,使得基底的反射表面从轮的外侧引导从荧光层发出的荧光, 通过激发光来激发它。 底座的反射表面具有形成在其上的微小反射结构的阵列,以从反射表面向外反射从荧光层基本上平行于基底的平坦底表面发射的荧光。

    FLUORESCENT WHEEL, LIGHT SOURCE DEVICE AND PROJECTOR
    9.
    发明申请
    FLUORESCENT WHEEL, LIGHT SOURCE DEVICE AND PROJECTOR 有权
    荧光轮,光源设备和投影仪

    公开(公告)号:US20140078475A1

    公开(公告)日:2014-03-20

    申请号:US14086674

    申请日:2013-11-21

    Inventor: Hiroki Masuda

    CPC classification number: G03B21/204 F21V13/08 G03B21/14

    Abstract: A fluorescent substrate includes a base having a reflective surface and a flat bottom surface, and a fluorescent layer disposed on the reflective surface of the base such that the reflective surface of the base directs, outward from the wheel, fluorescence emitted from the fluorescent layer due to its excitation by exciting light. The reflective surface of the base has an array of minute reflective structures formed thereon so as to reflect, outward from the reflective surface, fluorescence emitted substantially parallel to the flat bottom surface of the base from the fluorescent layer.

    Abstract translation: 荧光基板包括具有反射表面和平坦底表面的基底,以及布置在基底的反射表面上的荧光层,使得基底的反射表面从轮的外侧引导从荧光层发出的荧光, 通过激发光来激发它。 底座的反射表面具有形成在其上的微小反射结构的阵列,以从反射表面向外反射从荧光层基本上平行于基底的平坦底表面发射的荧光。

    Light source unit able to diffuse laser beam sufficiently, projector, and image projection method
    10.
    发明授权
    Light source unit able to diffuse laser beam sufficiently, projector, and image projection method 有权
    光源单元能够充分扩散激光束,投影仪和图像投影方法

    公开(公告)号:US09335559B2

    公开(公告)日:2016-05-10

    申请号:US14134858

    申请日:2013-12-19

    Inventor: Hiroki Masuda

    Abstract: There is provided a light source unit having a light source which emits a laser beam, a plurality of diffusing plates on which the laser beam is incident and which emit the laser beam incident thereon as diffuse light, and a driving mechanism which moves the plurality of diffusing plates, wherein the laser beam from the light source is incident on one diffusing plate of the plurality of diffusing plates, and diffuse light emitted from the one diffusing plate is incident on the other diffusing plate of the plurality of diffusing plates.

    Abstract translation: 提供了一种光源单元,其具有发射激光束的光源,激光束入射的多个扩散板,并且以其作为漫射光发射入射到其上的激光束;以及驱动机构,其使多个 扩散板,其中来自光源的激光束入射在多个漫射板的一个扩散板上,并且从一个扩散板发射的漫射光入射到多个扩散板的另一个扩散板上。

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