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    • 2. 发明申请
    • LIGHT UNIT
    • 光单元
    • US20130223096A1
    • 2013-08-29
    • US13884565
    • 2011-07-15
    • Jong Sun KimSang Jun ParkKyoung Soo AhnKyoung Jong YooYong In Lee
    • Jong Sun KimSang Jun ParkKyoung Soo AhnKyoung Jong YooYong In Lee
    • F21V8/00
    • G02B6/0036G02B6/0021G02B6/0038G02B6/0061G02F1/133603G02F1/133606G02F2001/133607
    • The present invention provides a light unit, comprising a printed circuit board equipped with a plurality of LEDs; and a light guide member equipped with mounting grooves to house the LEDs. It is preferred that the light guide member comprises one surface and another surface facing the one surface; a first density pattern area and a second density pattern area having higher density than that of the first density pattern area are formed in the one surface; and the second density pattern is disposed in an area closer to the light emitting surface of the LED than the first density pattern area.According to the present invention, hot spots can be removed by forming high density optical patterns on the upper surface of a light guide member and diffusing the light of LEDs; meanwhile, the transmission range of light can be extended and light extraction efficiency can be improved by disposing low density optical patterns in adjacent areas.
    • 本发明提供了一种灯单元,包括配备有多个LED的印刷电路板; 以及配备有用于容纳LED的安装槽的导光部件。 优选的是,导光构件包括一个表面和面向一个表面的另一个表面; 在一个表面上形成具有比第一密度图案区域的密度高的第一密度图案区域和第二密度图案区域; 并且第二浓度图案设置在比第一密度图案区域更靠近LED的发光表面的区域中。 根据本发明,通过在导光构件的上表面上形成高密度光学图案并使LED的光扩散,可以去除热点; 同时,通过在邻近区域设置低密度光学图案,可以延长光的透射范围,提高光提取效率。
    • 4. 发明授权
    • Light unit
    • 灯单位
    • US09121981B2
    • 2015-09-01
    • US13884565
    • 2011-07-15
    • Jong Sun KimSang Jun ParkKyoung Soo AhnKyoung Jong YooYong In Lee
    • Jong Sun KimSang Jun ParkKyoung Soo AhnKyoung Jong YooYong In Lee
    • F21V7/04F21V8/00G02F1/1335
    • G02B6/0036G02B6/0021G02B6/0038G02B6/0061G02F1/133603G02F1/133606G02F2001/133607
    • The present invention provides a light unit, comprising a printed circuit board equipped with a plurality of LEDs; and a light guide member equipped with mounting grooves to house the LEDs. It is preferred that the light guide member comprises one surface and another surface facing the one surface; a first density pattern area and a second density pattern area having higher density than that of the first density pattern area are formed in the one surface; and the second density pattern is disposed in an area closer to the light emitting surface of the LED than the first density pattern area.According to the present invention, hot spots can be removed by forming high density optical patterns on the upper surface of a light guide member and diffusing the light of LEDs; meanwhile, the transmission range of light can be extended and light extraction efficiency can be improved by disposing low density optical patterns in adjacent areas.
    • 本发明提供了一种灯单元,包括配备有多个LED的印刷电路板; 以及配备有用于容纳LED的安装槽的导光部件。 优选的是,导光构件包括一个表面和面向一个表面的另一个表面; 在一个表面上形成具有比第一密度图案区域的密度高的第一密度图案区域和第二密度图案区域; 并且第二浓度图案设置在比第一密度图案区域更靠近LED的发光表面的区域中。 根据本发明,可以通过在导光构件的上表面上形成高密度光学图案并扩散LED的光来去除热点; 同时,通过在邻近区域设置低密度光学图案,可以延长光的透射范围,提高光提取效率。