Ultrasonic microscope
    22.
    发明授权
    Ultrasonic microscope 失效
    超声波显微镜

    公开(公告)号:US4980865A

    公开(公告)日:1990-12-25

    申请号:US390085

    申请日:1989-08-07

    CPC分类号: G01S15/8993 G01S7/52026

    摘要: An ultrasonic microscope comprises an ultrasonic pulse transmitting/receiving circuit for emitting an ultrasonic to a sample and receiving an echo from it, a scanner for scanning the sample in a direction normal to the direction of emitting the ultrasonic pulse, an extraction circuit for sampling the output signal of the ultrasonic pulse transmitting/receiving circuit at a given duration and at given intervals to extract echo data signals of plural depths in the sample, a first memory for storing B mode image data attained by a single scanning, a second memory for storing, as 3D image data, the B mode image data sequentially read out from the first memory, an image processor for reading out the image data from the second memory for image processing, and a display device for displaying the processed image data as a 2D or 3D image.

    摘要翻译: 超声波显微镜包括用于向样品发射超声波并从其接收回波的超声波脉冲发射/接收电路,用于沿垂直于发射超声脉冲的方向的方向扫描样品的扫描仪,用于对 在给定的持续时间和给定间隔的超声波脉冲发射/接收电路的输出信号提取样本中的多个深度的回波数据信号,用于存储通过单次扫描获得的B模式图像数据的第一存储器,用于存储的第二存储器 作为3D图像数据,从第一存储器顺序读出的B模式图像数据,用于从第二存储器读取图像数据的图像处理器用于图像处理的图像处理器,以及用于将处理后的图像数据显示为2D或 3D图像。

    Apparatus for detecting a focusing condition of an objective lens
    23.
    发明授权
    Apparatus for detecting a focusing condition of an objective lens 失效
    用于检测物镜的聚焦状态的装置

    公开(公告)号:US4483602A

    公开(公告)日:1984-11-20

    申请号:US362993

    申请日:1982-03-29

    CPC分类号: G02B7/36

    摘要: In a single-lens reflex camera having an objective lens, a focusing screen and a view finder, a photodetector array is arranged to receive a central part of an object image formed by the objective lens and a focusing condition of the objective lens is detected by calculating an evaluation function from image signals supplied from the photodetectors. A presetting dial for selecting given photodetectors whose image signals are used for detecting the focusing condition is provided at such a position that a part of the dial is exposed to the outside through an opening formed in a rear wall of a camera body at a position underneath a film winding lever. A light emitting diode array is provided on the focusing screen so as to be seen by a user through the view finder. Only desired light emitting diodes are lighted on under the control of a signal supplied by the dial to indicate the region of the photodetector array which is used for detecting the focusing condition.

    摘要翻译: 在具有物镜,聚焦屏和取景器的单镜头反光相机中,光电检测器阵列被布置成接收由物镜形成的物体图像的中心部分,并且物镜的聚焦状态由 根据从光电检测器提供的图像信号计算评估函数。 用于选择其图像信号用于检测聚焦条件的给定光电检测器的预设拨盘设置在这样的位置处,即通过形成在照相机主体的后壁的下方的位置处的表面暴露于外部的位置 一个电影绕线杆。 在聚焦屏幕上提供发光二极管阵列,以便用户通过取景器看到。 在由表盘提供的信号的控制下,仅点亮所需的发光二极管,以指示用于检测聚焦条件的光电检测器阵列的区域。

    Focus detection by accumulation of a given number of the largest
absolute difference magnitudes between adjacent photocells in an array
    25.
    发明授权
    Focus detection by accumulation of a given number of the largest absolute difference magnitudes between adjacent photocells in an array 失效
    通过在阵列中的相邻光电管之间的给定数量的最大绝对差值的累积来进行聚焦检测

    公开(公告)号:US4314151A

    公开(公告)日:1982-02-02

    申请号:US87489

    申请日:1979-10-23

    CPC分类号: G02B7/38

    摘要: A focus detection system is provided in which an image of an object is projected onto an array comprising a plurality of light acceptor elements, formed by photoelectric elements, to cause them to produce photoelectric signals in accordance with the distribution of light intensity of the image. The photoelectric signals are converted into digital equivalents, and an absolute magnitude of a difference between digital signals of adjacent elements is calculated. These absolute magnitudes are arranged in the sequence of their magnitude, and a given number of them is accumulated, starting from the largest one. The accumulated value is utilized as the value of an evaluation function which indicates the sharpness of the image.

    摘要翻译: 提供了一种焦点检测系统,其中物体的图像被投影到包括由光电元件形成的多个光接收元件的阵列上,以使得它们根据图像的光强度的分布产生光电信号。 光电信号被转换为数字等价物,并且计算相邻元素的数字信号之间的差的绝对量。 这些绝对幅度按其大小的顺序排列,从最大的一个开始累积给定的数量。 累积值用作表示图像清晰度的评价函数的值。

    Surface emitting laser module and vertical illuminated photodiode module
    26.
    发明授权
    Surface emitting laser module and vertical illuminated photodiode module 失效
    表面发射激光模块和垂直照明光电二极管模块

    公开(公告)号:US08755423B2

    公开(公告)日:2014-06-17

    申请号:US12759024

    申请日:2010-04-13

    IPC分类号: H01S5/00

    摘要: In order to provide a compact optical module permitting highly efficient optical coupling and having components thereof highly densely packaged, a light emitting diode that is included in the optical module and emits light in a vertical direction with respect to a principal surface of a semiconductor substrate is provided with a lens integrated into a light emitting region, and a retaining section integrated to surround the light emitting region. Accordingly, readiness in alignment of the light emitting diode and an optical fiber, which guides light emitted from the light emitting diode, with each other is upgraded. Eventually, the compact optical module permitting highly efficient optical coupling and having components thereof highly densely packaged can be provided.

    摘要翻译: 为了提供一种紧凑的光学模块,其允许高效光耦合并且具有高密度封装的部件,包括在光学模块中并相对于半导体衬底的主表面沿垂直方向发光的发光二极管是 设置有集成到发光区域中的透镜,以及整合在围绕发光区域的保持部分。 因此,升级了将发光二极管发出的光引导的发光二极管与光纤对准的准备状态。 最终,可以提供允许高效光耦合并且具有高密度封装的部件的紧凑型光学模块。

    Semiconductor laser diode
    28.
    发明授权
    Semiconductor laser diode 有权
    半导体激光二极管

    公开(公告)号:US07636378B2

    公开(公告)日:2009-12-22

    申请号:US12028127

    申请日:2008-02-08

    IPC分类号: H01S5/00

    摘要: In an edge emitting laser having a window region with a ridge-waveguide structure, particularly, in a short cavity type of a laser operated with a low current, there has been a problem of its operating current being increased due to current leakage of the window portion. To solve this problem, in the window region, between an n-type substrate and a p-type cladding layer, a semi-insulating semiconductor layer into which Ru is doped is inserted. Alternatively, a stacked structure of a Ru-doped layer and a Fe-doped layer is introduced.

    摘要翻译: 在具有脊 - 波导结构的窗口区域的边缘发射激光器中,特别地,在具有低电流操作的短腔型激光器中,存在由于窗口的电流泄漏而使其工作电流增加的问题 一部分。 为了解决这个问题,在窗口区域中,插入n型衬底和p型覆层之间,掺杂Ru的半绝缘半导体层。 或者,引入Ru掺杂层和Fe掺杂层的堆叠结构。

    SEMICONDUCTOR DEVICE
    29.
    发明申请
    SEMICONDUCTOR DEVICE 有权
    半导体器件

    公开(公告)号:US20090090925A1

    公开(公告)日:2009-04-09

    申请号:US12245077

    申请日:2008-10-03

    IPC分类号: H01L33/00

    摘要: There are a silicon laser device having a IV-group semiconductor such as silicon or germanium equivalent to the silicon as a basic constituent element on a substrate made of the silicon, and the like by a method capable of easily forming the silicon laser device by using a general silicon process, and a manufacturing method thereof. The silicon laser device is an ultrathin silicon laser that includes a first electrode unit injecting electrons, a second electrode unit injecting holes, a light emitting unit electrically connected to the first electrode unit and the second electrode unit, wherein the light emitting unit is made of single-crystal silicon and has a first surface (top surface) and a second surface (bottom surface) opposed to the first surface, a waveguide made of a first dielectric, which is disposed in the vicinity of the light emitting unit, by setting surface directions of the first and second surfaces as a surface (100) and thinning a thickness of the light emitting unit in a direction perpendicular to the first and second surfaces, and a mirror formed by alternately adjoining the first dielectric and a second dielectric.

    摘要翻译: 存在具有诸如硅等离子体的硅组合半导体的硅激光器装置,其等同于由硅制成的衬底上作为基本构成元件的硅等,通过使用能够容易地形成硅激光器件的方法, 通用硅工艺及其制造方法。 硅激光器件是一种超薄硅激光器,其包括注入电子的第一电极单元,注入空穴的第二电极单元,与第一电极单元和第二电极单元电连接的发光单元,其中发光单元由 单晶硅,并且具有与第一表面相对的第一表面(顶表面)和第二表面(底表面),通过设置在发光单元附近的由第一电介质制成的波导 第一表面和第二表面的方向作为表面(100),并且在垂直于第一和第二表面的方向上减薄发光单元的厚度,以及通过交替地邻接第一电介质和第二电介质而形成的反射镜。

    Semiconductor laser diode and optical module employing the same
    30.
    发明申请
    Semiconductor laser diode and optical module employing the same 有权
    半导体激光二极管和采用其的光模块

    公开(公告)号:US20080144682A1

    公开(公告)日:2008-06-19

    申请号:US11705406

    申请日:2007-02-13

    申请人: Masahiro Aoki

    发明人: Masahiro Aoki

    IPC分类号: H01S5/125

    摘要: It is an object of the present invention to realize a low cost laser light source capable of emitting several mW optical power while the operation current is reduced. In particular, the present invention concerns a 1.3 μm wavelength band laser device suitable for several to several ten km short distance fiber optic transmission and also a less power consuming optical communication module in which such a laser is preferably mounted.As a laser structure which eliminates the necessity of adding an optical isolator by providing improved immunity to reflected light while lowering the operation current for less power consumption and not lowering the response speed, a short cavity laser which operates in multiple longitudinal modes is introduced. Especially, a angled mirror structure is formed at the laser's emitting edge to change the optical output direction so that the light is emitted from the top or bottom of the substrate.

    摘要翻译: 本发明的一个目的是实现一种能够在操作电流降低的同时发射多个mW光功率的低成本激光光源。 特别地,本发明涉及一种适用于几至几十公里短距离光纤传输的1.3μm波长带激光器件,以及其中优选安装这种激光器的功耗较少的光通信模块。 作为激光结构,通过提供对反射光的改善的抗扰性,同时降低操作电流以减少功率消耗并且不降低响应速度,消除了添加光隔离器的必要性,引入了以多个纵向模式操作的短腔激光器。 特别地,在激光器的发射边缘处形成倾斜的反射镜结构以改变光学输出方向,使得光从衬底的顶部或底部发射。