Light source apparatus and projector

    公开(公告)号:US11774839B2

    公开(公告)日:2023-10-03

    申请号:US17943730

    申请日:2022-09-13

    Inventor: Hiroshi Ogino

    Abstract: A light source apparatus includes an excitation light shining device for emitting excitation light, a rotational wheel device including a rotational wheel including a filter area for transmitting light in a predetermined wavelength range differing from a wavelength range of the excitation light and reflecting the excitation light and a direction-changing transmission area for transmitting the excitation light while changing a direction thereof, and a luminescent light emission device which receives the excitation light reflected on the filter area to thereby emit luminescent light including the light in the predetermined wavelength range towards the filter area, and the rotational wheel device is disposed so that an axis of the excitation light which passes through the direction-changing transmission area and an axis of the luminescent light in the predetermined wavelength range which passes through the filter area are superposed on each other.

    Light source unit and projector
    9.
    发明授权
    Light source unit and projector 有权
    光源单元和投影机

    公开(公告)号:US09200768B2

    公开(公告)日:2015-12-01

    申请号:US13801995

    申请日:2013-03-13

    Abstract: A light source unit includes an excitation light source, a plurality of light sources at least one of which emits a light ray in a wavelength band different from that of the excitation light source, a plurality of collimator lenses which make light rays from the light sources into parallel ones, a luminous light emitting device which receives the light ray from the excitation light source to emit a luminous light ray, a microlens array which diffuses the light rays from the light sources to a predetermined range and distributes the luminance thereof uniformly within the predetermined range and a collective lens which collects the light rays from the light sources which are emitted from the microlens array, and the light sources are disposed so that the light rays from the plurality of light sources intersect the light ray from the excitation light source at right angles.

    Abstract translation: 光源单元包括激发光源,多个光源,其中至少一个发射与激发光源不同的波长带的光线;多个准直透镜,其形成来自光源的光线 并入其中的发光装置,其接收来自激发光源的光线发射发光光线;微透镜阵列,其将来自光源的光线扩散到预定范围,并将亮度均匀地分布在该光源内; 收集从微透镜阵列发射的光源的光线的集体透镜,并且光源被设置成使得来自多个光源的光线与来自激发光源的光线相交, 直角。

    Light source device and projector
    10.
    发明授权

    公开(公告)号:US11982931B2

    公开(公告)日:2024-05-14

    申请号:US17883174

    申请日:2022-08-08

    Inventor: Hiroshi Ogino

    CPC classification number: G03B21/204 G02B26/008

    Abstract: A light source device includes an excitation light irradiation unit that emits excitation light; a rotary wheel unit including a rotary wheel having a filter region that reflects or transmits light in a predetermined wavelength band different from a wavelength band of the excitation light and transmits the excitation light, and a transmission bending region that bends and transmits the excitation light; and a fixed phosphor that is irradiated with the excitation light transmitted through the filter region and emits fluorescence including light in the predetermined wavelength band toward the filter region. The rotary wheel unit is configured so that an optical axis of the excitation light that is transmitted through the rotary wheel or is reflected from the rotary wheel overlaps with an optical axis of the fluorescence in the predetermined wavelength band reflected from the filter region or transmitted through the filter region.

Patent Agency Ranking