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    • 5. 发明授权
    • Light emitting device using LED
    • 使用LED的发光装置
    • US06930332B2
    • 2005-08-16
    • US10466114
    • 2002-08-28
    • Takuma HashimotoMasaru SugimotoHideyoshi KimuraEiji Shiohama
    • Takuma HashimotoMasaru SugimotoHideyoshi KimuraEiji Shiohama
    • H01L33/64H01L25/075H01L33/32H01L33/54H01L33/60H01L33/00
    • H01L33/642H01L25/0753H01L25/167H01L2224/45144H01L2224/48227H01L2924/181H01L2224/48091H01L2924/00014H01L2924/00012
    • A light emitting device that can provide enhanced heat radiation as well as allowing light from a light emitting diode (LED) chip to be efficiently extracted out of the device. This light emitting device includes a metal plate (11) that is made of aluminum. The metal plate (11) has a projection (11a) projecting forward. The projection (11a) has a front side provided with a housing recess (11b). An LED chip (1) is mounted on the bottom of the housing recess (11b) so that it is thermally coupled to the metal plate (11), thus allowing heat to be radiated efficiently. A printed circuit board (12), having a grass epoxy substrate to be joined to the front surface of the metal plate (11), is provided with an insertion hole (13) into which the projection (11a) is inserted. The LED chip (1) and a bonding wire (W) are encapsulated in a transparent resin seal portion (50). The side wall of the housing recess (11b) that is part of the metal plate (11) functions as a reflector for reflecting forward light emitted from the LED chip (1). Thus, light from the LED chip (1) can be extracted efficiently.
    • 可以提供增强的热辐射以及允许来自发光二极管(LED)芯片的光被有效地从设备中提取的发光器件。 该发光器件包括由铝制成的金属板(11)。 金属板(11)具有向前突出的突起(11a)。 突起(11a)具有设置有壳体凹部(11b)的前侧。 LED芯片(1)安装在壳体凹部(11b)的底部,使得其与金属板(11)热耦合,从而有效地辐射热量。 具有要连接到金属板(11)的前表面的草环氧树脂基板的印刷电路板(12)设置有插入孔(11),插入孔(11a)。 LED芯片(1)和接合线(W)被封装在透明树脂密封部分(50)中。 作为金属板(11)的一部分的壳体凹部(11b)的侧壁用作反射从LED芯片(1)发射的向前的光的反射器。 因此,可以有效地提取来自LED芯片(1)的光。
    • 7. 发明授权
    • Metal halide discharge lamp
    • 金属卤化物放电灯
    • US06639341B1
    • 2003-10-28
    • US09535746
    • 2000-03-27
    • Kazuhiko SakaiAtsunori OkadaSingo HigashisakaTakuma Hashimoto
    • Kazuhiko SakaiAtsunori OkadaSingo HigashisakaTakuma Hashimoto
    • H05B3104
    • H01J61/125H01J61/34H01J61/827
    • A metal halide discharge lamp which is capable of reducing a color change when subjected to a variation in the lamp power and/or the voltage supplied to the lamp. The metal halide lamp has an arc tube filled with at least sodium halide and scandium halide. The arc tube is formed at its opposite ends with electrodes which gives an arc discharge therebetween. The lamp has regulator means for keeping a coldest spot temperature of the arc tube at 550° C. or more when operating the lamp at a lamp power which is 50% or rated lamp power. It is found that when the lamp is configured to have a coldest spot temperature at 550° C. or more when operating the lamp at a lamp power which is 50% of the rated lamp power, the lamp shows much less color variation even subjected to the lamp voltage variation, thereby maintaining a desired color.
    • 一种金属卤化物放电灯,其能够在经受灯功率变化和/或提供给灯的电压时降低颜色变化。 金属卤化物灯具有至少填充有卤化钠和卤化钪的电弧管。 电弧管在其相对端形成有在其间产生电弧放电的电极。 该灯具有调节装置,用于在灯功率为50%或额定灯功率下操作灯时,将电弧管的最冷点温度保持在550℃或更高。 已经发现,当以灯功率为额定灯功率的50%来操作灯时,当灯被配置为具有550℃或更高的最低点温度时,该灯显示出甚至经受 灯电压变化,从而保持期望的颜色。