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    • 44. 发明授权
    • Light emitting device
    • 发光装置
    • US08277078B2
    • 2012-10-02
    • US13081852
    • 2011-04-07
    • Kenichiro Tanaka
    • Kenichiro Tanaka
    • F21S19/00
    • H05B33/0827H05B33/0857
    • A light emitting device includes: a light source unit which has a first and a second LED which are connected in parallel and emit lights of different colors, respectively. The lights of the first and the second LED are mixed to provide an emission light of the light source unit when an operating voltage is applied. The light source unit further has a resistor which is connected in series to the first LED to make forward current changing characteristics of the first and the second LED depending on change in the operating voltage to be different from each other, so that a required luminous flux-color temperature property, in which change in a color temperature of the emission light is made to depend on change in a luminous flux of the emission light, is obtained while the first and the second LED are turned on by applying the operating voltage.
    • 发光器件包括:光源单元,其具有分别连接并发射不同颜色的光的第一和第二LED。 当施加工作电压时,第一和第二LED的光被混合以提供光源单元的发射光。 光源单元还具有与第一LED串联连接的电阻器,以根据工作电压的变化而使第一和第二LED的正向电流变化特性彼此不同,使得所需的光通量 当通过施加工作电压来接通第一和第二LED时,获得发光的色温变化取决于发光的光通量变化的色温特性。
    • 46. 发明申请
    • LIGHT EMITTING DEVICE
    • 发光装置
    • US20120049170A1
    • 2012-03-01
    • US13203072
    • 2010-02-22
    • Kazuyuki YamaeKenichiro Tanaka
    • Kazuyuki YamaeKenichiro Tanaka
    • H01L51/52
    • H01L51/5036H01L51/5268
    • The light emitting device includes an organic electroluminescent element (20) and a diffractive optical element (30). The organic electroluminescent element (20) includes an anode layer (21), a cathode layer (22), and plural light emitting layers (231 and 232) interposed between the anode layer (21) and the cathode layer (22) and configured to emit light rays with different wavelengths. The diffractive optical element (30) is positioned in paths of light rays emitted from the organic electroluminescent element (20). The diffractive optical element (30) is designed to have different grating patterns (311 and 312) diffracting the light rays respectively emitted from the light emitting layers (231 and 232) for reducing chromatic aberration.
    • 发光器件包括有机电致发光元件(20)和衍射光学元件(30)。 有机电致发光元件(20)包括阳极层(21),阴极层(22)和介于阳极层(21)和阴极层(22)之间的多个发光层(231和232) 发出不同波长的光线。 衍射光学元件(30)位于从有机电致发光元件(20)发射的光线的路径中。 衍射光学元件(30)被设计成具有衍射从发光层(231和232)发射的光的衍射的不同的光栅图案(311和312),以减少色差。