LIGHT SOURCE DEVICE
    2.
    发明申请
    LIGHT SOURCE DEVICE 有权
    光源设备

    公开(公告)号:US20150167932A1

    公开(公告)日:2015-06-18

    申请号:US14414029

    申请日:2013-08-27

    摘要: To improve light utilization efficiency, a light source device (4) has a first monochromatic light source group (1000a), a second monochromatic light source group (1000b), a polarization selection and wavelength selection element (14), a first phosphor layer (16a), and a second phosphor layer (16b). The first monochromatic light source group (1000a) outputs first polarized light having a fixed polarization direction. The second monochromatic light source group (1000b) outputs second polarized light having a fixed polarization direction. The first phosphor layer emits light in a first wavelength band. The second phosphor layer emits light in a second wavelength band. The polarization selection and wavelength selection element (14) directs the first polarized light onto the first phosphor layer by transmitting the first polarized light and directs the second polarized light onto the second phosphor layer by reflecting the second polarized light, and reflects the light in the first wavelength band emitted from the first phosphor layer and transmits the light in the second wavelength band emitted from the second phosphor layer.

    摘要翻译: 为了提高光利用效率,光源装置(4)具有第一单色光源组(1000a),第二单色光源组(1000b),偏振选择和波长选择元件(14),第一荧光体层 16a)和第二荧光体层(16b)。 第一单色光源组(1000a)输出具有固定偏振方向的第一偏振光。 第二单色光源组(1000b)输出具有固定偏振方向的第二偏振光。 第一荧光体层发射第一波长带中的光。 第二荧光体层发射第二波长带中的光。 极化选择和波长选择元件(14)通过透射第一偏振光将第一偏振光引导到第一荧光体层上,并通过反射第二偏振光将第二偏振光引导到第二荧光体层上,并将光反射到 第一波长带从第一荧光体层发射并透射从第二荧光体层发射的第二波长带中的光。

    Projection display device
    3.
    发明授权
    Projection display device 有权
    投影显示设备

    公开(公告)号:US09467670B2

    公开(公告)日:2016-10-11

    申请号:US14758741

    申请日:2014-01-09

    摘要: A projection device includes: first light sources each emitting a first light; a collimator lens that converts the first lights into parallel light beams; a condensing optical system that receives the parallel light beams and emits concentrated light beams; and an optical element having an incident surface through which the concentrated light beams enters the optical element. The condensing optical system is configured so that when a light beam parallel to an optical axis of the condensing optical system is incident on the condensing optical system, the light beam is concentrated at a position on the axis on the incident surface. The parallel light beams are incident at different positions of the condensing optical system while approaching the axis. Emitting positions of the light beams on the condensing optical system and incident positions of the light beams on the incident surface are opposite each other with respect to the axis.

    摘要翻译: 投影装置包括:每个发射第一光的第一光源; 将第一光转换为平行光束的准直透镜; 聚光光学系统,其接收所述平行光束并发射集中的光束; 以及具有入射表面的光学元件,集中光束通过该入射表面进入光学元件。 聚光光学系统被配置为当平行于会聚光学系统的光轴的光束入射到聚光光学系统时,光束集中在入射表面上的轴上的位置。 并联光束入射在聚光光学系统的不同位置,同时靠近轴线。 聚光光学系统上的光束的发光位置和入射面上的光束的入射位置相对于轴线彼此相对。

    Semiconductor laser array
    4.
    发明授权
    Semiconductor laser array 有权
    半导体激光阵列

    公开(公告)号:US09466946B2

    公开(公告)日:2016-10-11

    申请号:US14562163

    申请日:2014-12-05

    摘要: In a semiconductor laser array of the present invention, a plurality of laser elements (first to fifth laser elements) are disposed such that waveguides of the laser elements are parallel to one another, each of the plurality of laser elements includes a front-end-surface reflection film on a front end surface serving as a light emitting surface of the waveguide, each of the plurality of laser elements includes a rear-end-surface reflection film on a rear end surface opposite to the front end surface with the waveguide sandwiched between the front end surface and the rear end surface, the front-end-surface reflection films of at least two of the plurality of laser elements have different reflectances, the rear-end-surface reflection films of the plurality of laser elements have the same reflectance, and the plurality of laser elements are driven by a single power supply.

    摘要翻译: 在本发明的半导体激光器阵列中,多个激光元件(第一至第五激光元件)被配置为使得激光元件的波导彼此平行,多个激光元件中的每一个包括前端 - 在作为波导管的发光面的前端面上的表面反射膜,所述多个激光元件中的每一个都包括在与前端面相对的后端面上的后端面反射膜,波导夹在 前端表面和后端表面中,多个激光元件中的至少两个的前端面反射膜具有不同的反射率,多个激光元件的后端面反射膜具有相同的反射率 并且多个激光元件由单个电源驱动。