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    Optical modulator with pixelization patterns
    1.
    发明授权
    Optical modulator with pixelization patterns 有权
    具有像素化模式的光调制器

    公开(公告)号：US08436370B2

    公开(公告)日：2013-05-07

    申请号：US12644564

    申请日：2009-12-22

    申请人： Yong-hwa Park ,  Yong-chul Cho ,  Soo-haeng Cho

    发明人： Yong-hwa Park ,  Yong-chul Cho ,  Soo-haeng Cho

    IPC分类号： H01L31/14

    CPC分类号： H01L31/14 ,  H01L31/145 ,  H01L31/153

    摘要： Provided is an optical modulator having pixelization patterns. The optical modulator includes an optical-electric (O-E) conversion element converting input optical images to current signals using the photoelectric effect, and an electric-optical (E-O) conversion element that emits light using the current signals transferred from the O-E conversion element. Trenches are formed from at least a surface of the optical modulator to a predetermined depth in the optical modulator so as to block or reduce electrical interference between pixels when the electric signals are transferred from the O-E conversion element to the E-O conversion element.

    摘要翻译： 提供了具有像素化图案的光调制器。 光调制器包括使用光电效应将输入光学图像转换为电流信号的光电（O-E）转换元件和使用从O-E转换元件传送的电流信号发光的电光（E-O）转换元件。 从光调制器的至少一个表面形成沟槽至光调制器中的预定深度，以便当电信号从O-E转换元件传送到E-O转换元件时阻塞或减少像素之间的电干扰。

    Transmissive image modulator including stacked diode structure having multi absorption modes
    2.
    发明授权
    Transmissive image modulator including stacked diode structure having multi absorption modes 有权
    透射图像调制器包括具有多个吸收模式的堆叠二极管结构

    公开(公告)号：US09051178B2

    公开(公告)日：2015-06-09

    申请号：US13617920

    申请日：2012-09-14

    申请人： Yong-chul Cho ,  Yong-tak Lee ,  Jang-woo You ,  Byung-hoon Na ,  Yong-hwa Park ,  Chang-young Park ,  Hee-ju Chio ,  Gun-wu Ju

    发明人： Yong-chul Cho ,  Yong-tak Lee ,  Jang-woo You ,  Byung-hoon Na ,  Yong-hwa Park ,  Chang-young Park ,  Hee-ju Chio ,  Gun-wu Ju

    IPC分类号： G02F1/017 ,  B82Y20/00 ,  H01L31/0352

    CPC分类号： B82Y20/00 ,  G02F1/017 ,  G02F2203/12 ,  H01L31/035236

    摘要： A transmissive light modulator including a first reflection layer; a first active layer, arranged on the first reflection layer and including a plurality of quantum well layers and a plurality of barrier layers; a second reflection layer arranged on the first active layer; a second active layer, arranged on the second reflection layer and including a plurality of quantum well layers and a plurality of barrier layers; and a third reflection layer arranged on the second active layer, wherein the first reflection layer and the third reflection layer are each doped with a first type dopant, and the second reflection layer is doped with a second type dopant, which is electrically opposite to the first type dopant.

    摘要翻译： 一种透射光调制器，包括第一反射层; 第一有源层，布置在所述第一反射层上并且包括多个量子阱层和多个势垒层; 布置在第一有源层上的第二反射层; 第二有源层，布置在所述第二反射层上并且包括多个量子阱层和多个势垒层; 以及布置在所述第二有源层上的第三反射层，其中所述第一反射层和所述第三反射层各自掺杂有第一类型掺杂剂，并且所述第二反射层掺杂有与所述第二反射层电气相反的第二类型掺杂剂 第一种掺杂剂。

    3-dimensional image acquisition apparatus and method of extracting depth information in the 3D image acquisition apparatus
    4.
    发明授权
    3-dimensional image acquisition apparatus and method of extracting depth information in the 3D image acquisition apparatus 有权
    三维图像获取装置和在3D图像获取装置中提取深度信息的方法

    公开(公告)号：US08902411B2

    公开(公告)日：2014-12-02

    申请号：US13160135

    申请日：2011-06-14

    申请人： Yong-hwa Park ,  Jang-woo You ,  Yong-chul Cho

    发明人： Yong-hwa Park ,  Jang-woo You ,  Yong-chul Cho

    IPC分类号： G01S17/36 ,  G01S17/89 ,  G01S7/487 ,  G01S17/87 ,  G01C3/08

    CPC分类号： G01S17/36 ,  G01S7/487 ,  G01S17/87 ,  G01S17/89

    摘要： A 3 dimensional (3D) image acquisition apparatus and a method of extracting depth information in the 3D image acquisition apparatus are provided. The method of extracting depth information includes sequentially projecting N (N is a natural number equal to or greater than 3) different pieces of projection light onto a object; modulating N pieces of reflection light reflected from the object with an optical modulation signal having a gain waveform; generating N images by capturing the N pieces of modulated reflection light; generating a first averaged image by multiplying the N images by primary weights and generating a second averaged image by multiplying the N images by secondary weights; acquiring an average phase delay from the first and second averaged images; and calculating a distance to the object from the average phase delay.

    摘要翻译： 提供了三维（3D）图像采集装置和提取3D图像采集装置中的深度信息的方法。 提取深度信息的方法包括将不同投影光的N（N等于或大于3的自然数）顺序投影到物体上; 用具有增益波形的光调制信号调制从物体反射的N个反射光; 通过捕获N个调制反射光产生N个图像; 通过将N个图像乘以主要权重来产生第一平均图像，并且通过将N个图像乘以次要权重来产生第二平均图像; 从所述第一和第二平均图像获取平均相位延迟; 以及从所述平均相位延迟计算到所述物体的距离。

    Optical image modulator, optical apparatus including the same, and methods of manufacturing and operating the optical image modulator
    5.
    发明授权
    Optical image modulator, optical apparatus including the same, and methods of manufacturing and operating the optical image modulator 有权
    光学图像调制器，包括其的光学装置以及制造和操作光学图像调制器的方法

    公开(公告)号：US08194303B2

    公开(公告)日：2012-06-05

    申请号：US12615381

    申请日：2009-11-10

    申请人： Yong-hwa Park ,  Jae-hyung Jang ,  Yong-chul Cho ,  Chang-soo Park ,  Byeong-ha Lee

    发明人： Yong-hwa Park ,  Jae-hyung Jang ,  Yong-chul Cho ,  Chang-soo Park ,  Byeong-ha Lee

    IPC分类号： G02F1/03 ,  G02B1/10

    CPC分类号： G02B1/10 ,  G02B13/008 ,  G02B26/0816 ,  G02B27/0006

    摘要： Disclosed are an optical image modulator, an optical apparatus including the same, and methods of manufacturing and operating the optical image modulator. The optical image modulator includes a light amount increasing unit increasing the amount of forward light emission of an electric-optical unit. The light amount increasing unit includes a first reflector reflecting light, which travels from the inside of the electric-optical unit toward the optical-electric unit, to the electric-optical unit. The light amount increasing unit may further include a second light reflector reflecting light, which passes through the optical-electric unit without optical-electric conversion, to the optical-electric unit.

    摘要翻译： 公开了一种光学图像调制器，包括该光学器件的光学装置以及制造和操作光学图像调制器的方法。 光学图像调制器包括增加电光单元的正向发光量的光量增加单元。 光量增加单元包括反射从电光单元的内部朝向光电单元行进的光的第一反射器到电光单元。 光量增加单元还可以包括将光通过光电单元而不进行光电转换的反射光的第二光反射器。

    Beam splitter for 3D camera, and 3D image acquisition apparatus employing the beam splitter
    6.
    发明授权
    Beam splitter for 3D camera, and 3D image acquisition apparatus employing the beam splitter 有权
    用于3D照相机的光束分离器和采用分束器的3D图像采集装置

    公开(公告)号：US09188662B2

    公开(公告)日：2015-11-17

    申请号：US13162224

    申请日：2011-06-16

    申请人： Jang-woo You ,  Yong-hwa Park ,  Yong-chul Cho

    发明人： Jang-woo You ,  Yong-hwa Park ,  Yong-chul Cho

    IPC分类号： G02B27/14 ,  H04N13/02 ,  G01S7/481 ,  G01S17/89 ,  H04N5/225 ,  H04N5/33 ,  G02B27/10 ,  G03B15/03 ,  G03B35/08

    CPC分类号： G01S7/4811 ,  G01S17/89 ,  G02B27/1013 ,  G02B27/141 ,  G03B15/03 ,  G03B35/08 ,  H04N5/2254 ,  H04N5/33

    摘要： A beam splitter and a 3D image acquisition apparatus including the beam splitter are provided. The beam splitter includes a light incident surface on which light having a first wavelength and light having a second wavelength are incident; a beam splitting surface which is inclined to the light incident surface and reflects the light having the first wavelength and transmits the light having the second wavelength; a first light exit surface through which the light having the first wavelength reflected from the beam splitting surface exits; a first reflective surface which reflects the light having the second wavelength transmitted by the beam splitting surface; a second reflective surface which reflects the light having the second wavelength reflected from the first reflective surface; and a second light exit surface through which the light having the second wavelength reflected from the second reflective surface exits.

    摘要翻译： 提供了一种分束器和包括分束器的3D图像采集装置。 分束器包括光入射表面，在该入射表面上入射具有第一波长的光和具有第二波长的光; 光束分离表面，其与所述光入射表面倾斜并且反射具有所述第一波长的光并透射具有所述第二波长的光; 第一光出射表面，具有从分束表面反射的第一波长的光离开; 第一反射表面，其反射由分束表面传输的具有第二波长的光; 反射从第一反射面反射的具有第二波长的光的第二反射面; 以及第二光出射表面，具有从第二反射表面反射的第二波长的光离开。

    Optical modulator
    8.
    发明授权
    Optical modulator 有权
    光调制器

    公开(公告)号：US08492863B2

    公开(公告)日：2013-07-23

    申请号：US12938064

    申请日：2010-11-02

    申请人： Yong-chul Cho ,  Yong-tak Lee ,  Yong-hwa Park ,  Byung-hoon Na ,  Kwang-mo Park ,  Chang-soo Park

    发明人： Yong-chul Cho ,  Yong-tak Lee ,  Yong-hwa Park ,  Byung-hoon Na ,  Kwang-mo Park ,  Chang-soo Park

    IPC分类号： H01L27/14 ,  G02F1/07

    CPC分类号： G02F1/017 ,  B82Y20/00 ,  G02F1/218 ,  G02F2001/0155 ,  G02F2201/307 ,  G02F2203/12

    摘要： Optical modulator having wide bandwidth based on Fabry-Perot resonant reflection is disclosed. The optical modulator includes: a bottom Distributed Bragg Reflector (DBR) layer; a top DBR layer including at least one layer, and a modified layer; and an active layer disposed between bottom and top DBR layers, wherein the at least one layer includes at least one pair of a first refractive index layer having a first refractive index and a second refractive index layer having a second refractive index, the modified layer includes at least one pair of a third refractive index layer having a third refractive index and a fourth refractive index layer having a fourth refractive index, the third and the fourth refractive indexes being different, and at least one of the third and the fourth refractive index layers has a second optical thickness that is not λ/4 or that is not an odd multiple thereof.

    摘要翻译： 公开了基于法布里 - 珀罗共振反射的具有宽带宽的光调制器。 光调制器包括：底部分布布拉格反射器（DBR）层; 包括至少一个层的顶部DBR层和修饰层; 以及设置在底部和顶部DBR层之间的有源层，其中所述至少一层包括至少一对具有第一折射率的第一折射率层和具有第二折射率的第二折射率层，所述改性层包括 至少一对具有第三折射率的第三折射率层和具有第四折射率的第四折射率层，第三和第四折射率不同，并且第三和第四折射率层中的至少一个 具有不是λ/ 4的第二光学厚度或不是其奇数倍。

    High-speed optical modulator and method of modulating light by using the same
    9.
    发明授权
    High-speed optical modulator and method of modulating light by using the same 有权
    高速光调制器及其使用方法

    公开(公告)号：US08953238B2

    公开(公告)日：2015-02-10

    申请号：US12720706

    申请日：2010-03-10

    申请人： Ji-deog Kim ,  Yong-hwa Park ,  Yong-jun Park ,  Chang-kwon Hwangbo ,  Jang-hoon Lee ,  Jin-joo Kim

    发明人： Ji-deog Kim ,  Yong-hwa Park ,  Yong-jun Park ,  Chang-kwon Hwangbo ,  Jang-hoon Lee ,  Jin-joo Kim

    IPC分类号： G02F1/03 ,  G02F1/21

    CPC分类号： G02F1/21 ,  G02F2001/213

    摘要： Provided are a high-speed optical modulator and a method of modulating light by using the same. The optical modulator includes first and second resonance cavities that are sequentially stacked on a transparent substrate, wherein the first and second resonance cavities each include an electric-optical layer. According to the method, first and second voltages having different sizes are simultaneously applied respectively to the first and second resonance cavities, and then for the other configuration of the modulator mutually interchanged voltages are applied.

    摘要翻译： 提供了一种高速光学调制器和通过使用它们来调制光的方法。 光调制器包括依次层叠在透明基板上的第一和第二谐振腔，其中第一和第二谐振腔各自包括电光层。 根据该方法，具有不同尺寸的第一和第二电压分别同时施加到第一和第二共振腔，然后对于调制器的另一配置相互互换的电压被施加。