会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明申请
    • SPECTRUM DETECTOR
    • 光谱检测器
    • US20120057156A1
    • 2012-03-08
    • US13321082
    • 2009-08-17
    • Shiro SakaiWon Chul SeoDae Won Kim
    • Shiro SakaiWon Chul SeoDae Won Kim
    • G01J3/18
    • G01J3/0235B82Y20/00G01J3/02G01J3/0205G01J3/0259G01J3/36G01J3/42G01J2003/1213
    • Provided is a spectrum detector capable of being miniaturized and which does not require complicated optical axis alignment. The spectrum detector of the present invention comprises: a substrate; a photodetector formed on the substrate and including a semiconductor having a plurality of convex portions; and a wavelength detection circuit for detecting a wavelength of light transmitted through the plurality of convex portions, from light incident on the photodetector. According to the present invention, a small-sized spectrum detector can be provided which can easily detect a peak wavelength distribution included in light of an unknown wavelength, without the use of optical equipment such as a grating or prism, thus dispensing with the need for the optical axis alignment of a complex optical system.
    • 提供了能够小型化并且不需要复杂的光轴对准的光谱检测器。 本发明的光谱检测器包括:基板; 形成在所述基板上并包括具有多个凸部的半导体的光电探测器; 以及波长检测电路,用于从入射到光电检测器上的光检测透过多个凸部的光的波长。 根据本发明,可以提供一种小型光谱检测器,其可以容易地检测包括在未知波长的光中的峰值波长分布,而不需要使用诸如光栅或棱镜的光学设备,从而不需要 复合光学系统的光轴对准。
    • 10. 发明授权
    • Gallium nitride-based compound semiconductor device
    • 氮化镓系化合物半导体器件
    • US07700940B2
    • 2010-04-20
    • US10521544
    • 2003-07-01
    • Shiro SakaiTomoya Sugahara
    • Shiro SakaiTomoya Sugahara
    • H01L33/00
    • H01L33/32B82Y20/00H01L33/06
    • An LED emitting light of wavelength mainly 375 nm or below. The LED includes a GaN layer (16), an n-clad layer (20), an AlInGaN buffer layer (22), a light emitting layer (24), a p-clad layer (26), a p-electrode (30), and an n-electrode (32) arranged on a substrate (10). The light emitting layer (24) has a multi-layer quantum well structure (MQW) in which an InGaN well layer and an AlInGaN barrier layer are superimposed. The quantum well structure increases the effective band gap of the InGaN well layer and reduces the light emitting wavelength. Moreover, by using the AlInGaN buffer layer (22) as the underlying layer of the light emitting layer (24), it is possible to effectively inject electrons into the light emitting layer (24), thereby increasing the light emitting efficiency.
    • 发射波长主要为375nm或以下的LED的LED。 LED包括GaN层(16),n覆盖层(20),AlInGaN缓冲层(22),发光层(24),p覆盖层(26),p电极(30) )和布置在基板(10)上的n电极(32)。 发光层(24)具有叠层InGaN阱层和AlInGaN阻挡层的多层量子阱结构(MQW)。 量子阱结构增加了InGaN阱层的有效带隙并降低了发光波长。 此外,通过使用AlInGaN缓冲层(22)作为发光层(24)的下层,可以有效地将电子注入到发光层(24)中,从而提高发光效率。