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    • 1. 发明授权
    • Distributed Bragg's reflector of digital-alloy multinary compound semiconductor
    • 数字合金多元化合物半导体分布布拉格反射体
    • US08780951B2
    • 2014-07-15
    • US12622192
    • 2009-11-19
    • Jin Dong SongWon Jun ChoiJung Il Lee
    • Jin Dong SongWon Jun ChoiJung Il Lee
    • H01S3/08
    • H01S5/183H01L33/105H01S2304/00H01S2304/02
    • There is provided a distributed Bragg's reflector (DBR) comprising a substrate and an unit distributed Bragg's reflector (DBR) layer, wherein a multi-layer is laminated on the substrate. The unit DBR layer is composed of a multi-layer laminated structure of unit digital-alloy multinary compound semiconductor layer/multinary compound semiconductor layer or unit digital-alloy multinary compound semiconductor layer/unit digital-alloy multinary compound semiconductor layer. The unit digital-alloy multinary compound semiconductor layer is composed of the multi-layer laminated structure of the first layer of multinary compound semiconductor and the second layer of a different multinary compound semiconductor on said first layer. The digital-alloy distributed Bragg's reflector of the present invention has a uniform quality on the substance area and the filter and reflector having uniformly high quality can be mass produced by using the reflector.
    • 提供了一种分布式布拉格反射器(DBR),其包括基板和单元分布布拉格反射器(DBR)层,其中多层层压在基板上。 单元DBR层由单元数字合金多元化合物半导体层/多元化合物半导体层或单元数字合金多元化合物半导体层/单元数字合金多元化合物半导体层的多层层叠结构组成。 单元数字合金多元化合物半导体层由第一层多元化合物半导体的多层层叠结构和在第一层上的不同的多元化合物半导体的第二层组成。 本发明的数字合金分布布拉格反射体在物质面积上具有均匀的质量,并且可以通过使用反射体大量生产具有均匀高质量的过滤器和反射器。
    • 2. 发明授权
    • Film sheet for area focusing of sun light and greenhouse provided with the same
    • 提供太阳光和温室区域聚焦的电影片
    • US08296994B2
    • 2012-10-30
    • US12962724
    • 2010-12-08
    • Seong-Il KimWon-Jun ChoiIl-Ki HanJung-Il Lee
    • Seong-Il KimWon-Jun ChoiIl-Ki HanJung-Il Lee
    • A01G9/24
    • A01G9/243A01G9/1438F24S23/31G02B5/045Y02A40/252Y02A40/266Y02E10/43Y02P60/124
    • A film sheet for area-focusing of sunlight and a greenhouse provided with the same are provided. A film sheet includes i) a film having a rectangular shape, and ii) a plurality of prism assemblies formed on one surface of the film to extend in one direction. At least one prism assembly of the plurality of prism assemblies includes i) at least one first prism unit including a plurality of first prisms with slanted angles that are substantially the same as each other, and ii) at least one second prism unit neighboring the first prism unit and including a plurality of second prisms with slanted angles that are substantially the same as each other. The width of the first prism unit is substantially the same as the width of the second prism unit and a slanted angle of one first prism among the plurality of first prisms is different from a slanted angle of one second prism among the plurality of second prisms, and light entering the prism assembly is configured to be area-focused.
    • 提供了一种用于阳光区域聚焦的薄膜片和设有该阳光的温室。 膜片包括i)具有矩形形状的膜,以及ii)形成在膜的一个表面上以在一个方向上延伸的多个棱镜组件。 所述多个棱镜组件中的至少一个棱镜组件包括:i)至少一个第一棱镜单元,其包括具有彼此基本相同的倾斜角度的多个第一棱镜,以及ii)与第一棱镜单元相邻的至少一个第二棱镜单元 棱镜单元,并且包括具有彼此基本相同的倾斜角度的多个第二棱镜。 第一棱镜单元的宽度与第二棱镜单元的宽度基本相同,并且多个第一棱镜中的一个第一棱镜的倾斜角度与多个第二棱镜中的一个第二棱镜的倾斜角度不同, 并且进入棱镜组件的光被配置为区域聚焦。
    • 3. 发明授权
    • Circuit for generating refresh period signal and semiconductor integrated circuit using the same
    • 用于产生刷新周期信号的电路和使用其的半导体集成电路
    • US08248878B2
    • 2012-08-21
    • US12633900
    • 2009-12-09
    • Won Jun Choi
    • Won Jun Choi
    • G11C7/00
    • G11C11/406G11C11/40615G11C2211/4065G11C2211/4067
    • Circuits for generating refresh period signals and semiconductor integrated circuits using the same are presented. The refresh period signal generation circuit can include an oscillator, a pulse generation unit, and a signal controller. The oscillator is configured to generate an oscillation signal in response to a refresh duration correction signal. The pulse generation unit is configured to generate a refresh period signal in response to the oscillation signal. The signal controller configured to generate the refresh duration correction signal, which corrects an active time of a refresh duration signal, in response to the oscillation signal.
    • 提出了用于产生刷新周期信号的电路和使用其的半导体集成电路。 刷新周期信号发生电路可以包括振荡器,脉冲发生单元和信号控制器。 振荡器被配置为响应于刷新持续时间校正信号产生振荡信号。 脉冲发生单元被配置为响应于振荡信号产生刷新周期信号。 所述信号控制器被配置为响应于所述振荡信号产生刷新持续时间校正信号,所述刷新持续时间校正信号校正刷新持续时间信号的有效时间。
    • 10. 发明授权
    • Polarized light emitting diode
    • 极化发光二极管
    • US07816699B2
    • 2010-10-19
    • US12018280
    • 2008-01-23
    • Q-Han ParkWon-Jun ChoiHeon-Su Jeon
    • Q-Han ParkWon-Jun ChoiHeon-Su Jeon
    • H01L33/00
    • H01L33/10H01L33/22
    • Disclosed is a polarized light emitting diode (LED) capable of emitting polarized light in the front direction thereof by forming a first grating layer on a quantum well layer and forming a second grating layer on a substrate. The polarized LED includes a nitride thin film formed on a substrate, a quantum well layer formed on the nitride thin film, a first grating layer formed on the quantum well layer to allow a part of light generated from the quantum well layer to pass through the first grating layer and to reflect remaining light, and a second grating layer formed on the substrate to rotate the light reflected from the first grating layer such that the reflected light passes through the first grating layer.
    • 公开了一种能够通过在量子阱层上形成第一光栅层并在基板上形成第二光栅层而能够在其前方向上发射偏振光的偏振发光二极管(LED)。 偏光LED包括形成在衬底上的氮化物薄膜,形成在氮化物薄膜上的量子阱层,形成在量子阱层上的第一光栅层,以允许从量子阱层产生的一部分光通过 第一光栅层并反射剩余的光,以及形成在基板上的第二光栅层,以旋转从第一光栅层反射的光,使得反射光穿过第一光栅层。