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    • 11. 发明申请
    • LIGHT EMITTING DEVICE
    • 发光装置
    • US20110157864A1
    • 2011-06-30
    • US12876774
    • 2010-09-07
    • Yasushi HATTORIMasaki TohyamaShinji SaitoShinya NunoueMaki SugaiRei Hashimoto
    • Yasushi HATTORIMasaki TohyamaShinji SaitoShinya NunoueMaki SugaiRei Hashimoto
    • F21V9/16
    • F21K9/68G02F1/133615G02F2001/133614
    • According to embodiments, a light emitting device is provided. The light emitting device includes a semiconductor laser diode that emits a laser beam; first and second sidewalls that are disposed along a central beam axis of the laser beam with opposite each other; a phosphor layer that is provided between the first and second sidewalls, the phosphor layer including an incidence surface of the laser beam, the incidence surface being provided while inclined with respect to the central beam axis, the phosphor layer absorbing the laser beam to emit visible light on the incidence surface side; a slit that is provided on the incidence surface side of the phosphor layer to take out the visible light, the slit including a longitudinal direction and a crosswise direction, the longitudinal direction being disposed along a direction of the central beam axis; and a reflector that is provided on the slit side of the semiconductor laser diode so as not to intersect the central beam axis, the reflector reflecting part of the laser beam toward the phosphor layer.
    • 根据实施例,提供了一种发光器件。 发光器件包括发射激光束的半导体激光二极管; 第一和第二侧壁沿着激光束的中心束轴设置,彼此相对; 设置在第一和第二侧壁之间的磷光体层,所述荧光体层包括激光束的入射表面,所述入射表面相对于所述中心束轴倾斜设置,所述荧光体层吸收所述激光束以发射可见光 光在入射面一侧; 狭缝,其设置在所述荧光体层的入射面侧以取出所述可见光,所述狭缝包括纵向和横向,所述纵向方向沿着所述中心射束轴线的方向设置; 以及设置在半导体激光二极管的狭缝侧以不与中心束轴相交的反射器,反射器将激光束的一部分反射向荧光体层。