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43 条记录 (耗时 0.017 秒)

    IMAGING APPARATUS AND IMAGING METHOD
    1.
    发明公开
    IMAGING APPARATUS AND IMAGING METHOD 审中-公开
    成像装置和成像方法

    公开(公告)号：EP3179204A1

    公开(公告)日：2017-06-14

    申请号：EP16186551.4

    申请日：2016-08-31

    申请人： SCREEN Holdings Co., Ltd.

    发明人： Ueyama, Kenji ,  Fukue, Kumiko

    IPC分类号： G01B9/02 ,  G02B27/00

    CPC分类号： G01B9/02091 ,  G01B9/02001 ,  G01B9/02044 ,  G01B9/02059 ,  G01N33/4833 ,  G02B27/0018

    摘要： An OCT imaging technique capable of suppressing image noise due to reflection on a wall surface of a carrier for carrying an imaging object by a simple configuration is provided. A light regulating member 28 having a transmission pattern where the high transmission parts P1 and the low transmission parts P2 are alternately arranged is placed on a side opposite to the spheroid Sp (imaging object) across the objective lens 27. The transmission pattern is rotationally symmetric with respect to an optical axis AX of the objective lens 27 and a point located at a position point-symmetric with an arbitrary point in the high transmission part with respect to a point where the optical axis of the objective lens intersects with the light regulating surface is included in the low transmission part.

    摘要翻译： 提供了一种OCT成像技术，其能够通过简单构造来抑制由于用于承载成像对象的载体的壁表面上的反射而引起的图像噪声。 具有其中高透射部分P1和低透射部分P2交替布置的透射图案的光调节构件28跨过物镜27放置在与旋转椭圆体Sp（成像对象）相对的一侧上。透射图案旋转对称 相对于物镜27的光轴AX和相对于物镜的光轴与光调节表面交叉的点处的位于与高透射部分中的任意点点对称的位置处的点 包含在低传输部分。

    SURFACE EMITTING LASER AND OPTICAL COHERENCE TOMOGRAPHY APPARATUS
    3.
    发明公开
    SURFACE EMITTING LASER AND OPTICAL COHERENCE TOMOGRAPHY APPARATUS 审中-公开
    OBERFLÄCHENEMITTIERENDER激光开发商KOHÄRENZTOMOGRAFIEVORRICHTUNG

    公开(公告)号：EP2966738A1

    公开(公告)日：2016-01-13

    申请号：EP15176035.2

    申请日：2015-07-09

    申请人： Canon Kabushiki Kaisha

    发明人： NAGATOMO, Yasuhiro

    IPC分类号： H01S5/183 ,  A61B5/00

    CPC分类号： H01S5/18366 ,  A61B5/0066 ,  G01B9/02001 ,  G01B9/02091 ,  H01S5/10 ,  H01S5/1039 ,  H01S5/12 ,  H01S5/125 ,  H01S5/183 ,  H01S5/1833 ,  H01S5/18333 ,  H01S5/18361 ,  H01S5/18363 ,  H01S5/187

    摘要： In order to provide a wavelength tunable surface emitting laser capable of improving a wavelength tuning efficiency, provided is a surface emitting laser, including: a first reflector (100); a semiconductor cavity (150) including an active layer (120); and a second reflector (110), the first reflector, the semiconductor cavity, and the second reflector being formed in the stated order, a gap portion (130) being formed between the first reflector and a semiconductor layer, a cavity length being tunable, in which the surface emitting laser has a high reflectivity structure formed between the gap portion and the semiconductor cavity, and an expression of "(λ/2)×m+λ/8

    摘要翻译： 为了提供能够提高波长调谐效率的波长可调谐表面发射激光器，提供了一种表面发射激光器，包括：第一反射器（100）; 包括有源层（120）的半导体腔（150）; 和第二反射器（110），所述第一反射器，所述半导体腔和所述第二反射器按照所述顺序形成，在所述第一反射器和半导体层之间形成间隙部分（130），空腔长度可调， 其中表面发射激光器具有形成在间隙部分和半导体腔之间的高反射率结构，并且“（»/ 2）×m +»/ 8

    LASER DEVICE WITH FREQUENCY STABILISING CONTROL MODULE
    6.
    发明公开
    LASER DEVICE WITH FREQUENCY STABILISING CONTROL MODULE 审中-公开
    LASERVORRICHTUNG MIT EINEM FREQUENZSTABILISIERENDEN STEUERMODUL

    公开(公告)号：EP2812960A1

    公开(公告)日：2014-12-17

    申请号：EP13746082.0

    申请日：2013-02-08

    申请人： NKT Photonics A/S

    发明人： PEDERSEN, Jens E. ,  VARMING, Poul ,  POULSEN, Christian V. ,  FAGERHØJ, Thomas O. ,  GØTH, Bjarke ,  SØRENSEN, Henrik

    IPC分类号： H01S3/13 ,  H01S5/0687

    CPC分类号： H01S5/0687 ,  G01B9/02001 ,  H01S3/2391 ,  H01S5/02284 ,  H01S5/0654 ,  H01S5/141 ,  H01S5/4087 ,  H01S2301/02

    摘要： The invention relates to a laser device, comprising a laser configured to generate laser light and a laser control module configured to receive at least a portion of the laser light generated by the laser, to generate a control signal and to feed the control signal back to the laser for stabilizing the frequency, wherein the laser control module comprises a tunable frequency discriminating element which is preferably continuously frequency tunable, and where the laser control module is placed outside the laser cavity.

    摘要翻译： 本发明涉及一种激光装置，其包括被配置为产生激光的激光器和被配置为接收由激光器产生的激光的至少一部分的激光控制模块，以产生控制信号并将控制信号馈送回 用于稳定频率的激光器，其中激光控制模块包括可调谐的频率鉴别元件，其优选地是连续可变频率的，并且其中激光控制模块放置在激光腔外部。

    Broadband optical detection of transient motion from a scattering surface
    7.
    发明公开
    Broadband optical detection of transient motion from a scattering surface 失效
    Breitbandige optische Erfassung der transienten Bewegung einer streuendenOberfläche。

    公开(公告)号：EP0339625A1

    公开(公告)日：1989-11-02

    申请号：EP89107608.5

    申请日：1989-04-27

    申请人： NATIONAL RESEARCH COUNCIL OF CANADA

    发明人： Monchalin, Jean-Pierre

    IPC分类号： G01N29/00 ,  G01B9/02

    CPC分类号： G01H9/00 ,  G01B9/02001 ,  G01B9/02097 ,  G01B11/162 ,  G01N29/2418 ,  G01N2291/0427

    摘要： The invention is concerned with a method and apparatus for optically detecting transient motion from a scattering surface (14). A laser beam (10) having a predetermined frequency is directed onto such a surface (14) to thereby scatter the laser beam and produce a scattered laser beam (16) defining an optical wavefront and having an optical spectrum with a central peak at the laser frequency (F L ) and a sideband on either side of the central peak. The laser beam (16) scattered by the surface (14) is caused to interfere with a reference beam (22) derived from the scattered laser beam (16) and having an optical wavefront substantially matching the wavefront of the scattered beam and an optical spectrum with a single peak at the laser frequency (F L ) and no sidebands, to obtain an optical signal which is detected and converted into an electrical signal representative of the transient motion. The optical detection technique according to the invention has a broad frequency bandwidth and a large étendue provid­ing greater sensitivity of detection, and is partic­ularly useful for detecting small surface deforma­tions of a material or workpiece subjected to ultra­sonic energy.

    摘要翻译： 本发明涉及用于光学地检测来自散射表面（14）的瞬态运动的方法和装置。 具有预定频率的激光束（10）被引导到这样的表面（14）上，从而散射激光束并产生限定光学波前的散射激光束（16），并具有在激光器处具有中心峰值的光谱 频率（FL）和中心峰两侧的边带。 使由表面（14）散射的激光束（16）与散射激光束（16）导出的参考光束（22）干涉，并且具有基本上与散射光束的波前匹配的光波阵面和光谱 在激光频率（FL）和没有边带处具有单个峰值，以获得被检测并转换成代表瞬时运动的电信号的光信号。 根据本发明的光学检测技术具有宽的频率带宽和大的检测灵敏度，并且对于检测经受超声波能量的材料或工件的小的表面变形特别有用。

    IMAGING APPARATUS AND IMAGING METHOD
    8.
    发明授权
    IMAGING APPARATUS AND IMAGING METHOD 有权

    公开(公告)号：EP3179204B1

    公开(公告)日：2018-08-01

    申请号：EP16186551.4

    申请日：2016-08-31

    申请人： SCREEN Holdings Co., Ltd.

    发明人： Ueyama, Kenji ,  Fukue, Kumiko

    IPC分类号： G01B9/02 ,  G02B27/00

    CPC分类号： G01B9/02091 ,  G01B9/02001 ,  G01B9/02044 ,  G01B9/02059 ,  G01N33/4833 ,  G02B27/0018

    摘要： An OCT imaging technique capable of suppressing image noise due to reflection on a wall surface of a carrier for carrying an imaging object by a simple configuration is provided. A light regulating member 28 having a transmission pattern where the high transmission parts P1 and the low transmission parts P2 are alternately arranged is placed on a side opposite to the spheroid Sp (imaging object) across the objective lens 27. The transmission pattern is rotationally symmetric with respect to an optical axis AX of the objective lens 27 and a point located at a position point-symmetric with an arbitrary point in the high transmission part with respect to a point where the optical axis of the objective lens intersects with the light regulating surface is included in the low transmission part.

    TOMOGRAPHY DEVICE
    10.
    发明公开
    TOMOGRAPHY DEVICE 审中-公开

    公开(公告)号：EP3162282A4

    公开(公告)日：2018-03-28

    申请号：EP15815610

    申请日：2015-06-29

    申请人： KOWA CO

    发明人： KOBAYASHI NAOKI ,  KAKUTANI YOSHIHIRO

    IPC分类号： A61B3/10 ,  A61B5/00 ,  G01B9/02

    CPC分类号： G01B9/02091 ,  A61B3/10 ,  A61B3/102 ,  A61B5/0066 ,  G01B9/02001 ,  G01B9/02058

    摘要： A measurement optical system (30) is provided which causes measurement light split by a beam splitter (20) to be incident to an object, and a reference optical system (40) is provided which causes reference light split by the beam splitter to be incident to a reference mirror (49). A tomographic image of the object is formed on the basis of interference light generated by superposition of the measurement light reflected at the object to return and the reference light reflected at the reference object to return. Optical components such as lenses and mirrors that constitute the measurement optical system and reference optical system correspond to each other, and the wavelength dispersion characteristics of the optical components in the correspondence relationship are identical or equivalent.