公开(公告)号：US20240085776A1

公开(公告)日：2024-03-14

申请号：US18263105

申请日：2022-03-31

申请人： TECHNOLOGIES DIGITHO INC.

发明人： Richard BEAUDRY

IPC分类号： G03F7/00 ,  G01B9/02001 ,  G03F1/42

CPC分类号： G03F7/70991 ,  G01B9/0201 ,  G03F1/42 ,  G03F7/70291 ,  G01B2290/25

摘要： A photolithography mask (10) is provided, said photolithography mask (10) including a plate (15) or an empty frame matrix, a surface of the plate (15) or empty frame matrix including an array of micro-pixels (20), wherein each micro-pixel (20) is independently controllable using an on-board micro-controller (25) in such a manner that a pattern can be generated with the array of micro-pixels (20).

公开(公告)号：US20190150743A1

公开(公告)日：2019-05-23

申请号：US15844370

申请日：2017-12-15

申请人： HI LLC

发明人： Changhuei Yang ,  Adam Marblestone ,  Jamu Alford

IPC分类号： A61B5/00 ,  G01N21/17 ,  G01N21/45 ,  A61B5/1455

CPC分类号： A61B5/0042 ,  A61B5/0066 ,  A61B5/0073 ,  A61B5/0097 ,  A61B5/14553 ,  A61B5/4064 ,  A61B5/4875 ,  A61B5/6803 ,  A61B5/6814 ,  A61B5/7278 ,  A61B2562/04 ,  A61B2576/026 ,  G01B9/02002 ,  G01B9/0201 ,  G01B9/02031 ,  G01N21/1702 ,  G01N21/45 ,  G01N29/2418 ,  G01N2021/1706

摘要： A system and method of performing ultrasound modulated optical tomography. Ultrasound is delivered into a target voxel in an anatomical structure, and sample light is delivered into the anatomical structure, whereby a portion of the sample light passing through the target voxel is scattered by the biological tissue as signal light, and a portion of the sample light not passing through the target voxel is scattered by the anatomical structure as background light. The ultrasound and sample light are pulsed in synchrony, such that only the signal light is frequency shifted by the ultrasound. Reference light is combined with the signal light and background light to generate an interference light pattern, which is sequentially modulated to generate a plurality of different interference light patterns. Spatial components of each of the different interference light patterns are simultaneously detected and stored in bins.

公开(公告)号：US20180274899A1

公开(公告)日：2018-09-27

申请号：US15467365

申请日：2017-03-23

申请人： HITACHI, LTD.

发明人： Kazuyoshi YAMAZAKI

IPC分类号： G01B9/02

CPC分类号： G01B9/0201 ,  G01B9/0207 ,  G01B11/2441

摘要： An interference measurement device configured to detect a phase from an interference beam between an object beam and a reference beam, includes: a laser beam source; a splitter configured to split an emitted beam from the laser beam source into the object beam and the reference beam; an object beam optical unit configured to make only the object beam incident on a measurement object; a combination unit configured to combine the object beam and the reference beam; a phase element configured to vary mutual relationship in phase between the object beam and the reference beam; and a detector configured to detect the interference beam between the object beam and the reference beam. A signal of a spatial phase variation of the measurement object is directly operated, based on at least two measurement results of an intensity signal with the detector.

公开(公告)号：US09921051B2

公开(公告)日：2018-03-20

申请号：US14323211

申请日：2014-07-03

申请人： KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

发明人： Jae-Wan Kim ,  Jong-Ahn Kim ,  Chu-Shik Kang ,  Jong-Han Jin

IPC分类号： G01B11/06 ,  G01B11/14 ,  G01B9/02 ,  G01N21/21 ,  G01S17/36 ,  G01N21/45

CPC分类号： G01B11/06 ,  G01B9/0201 ,  G01B9/02081 ,  G01B11/14 ,  G01N21/211 ,  G01N21/45 ,  G01N2021/213 ,  G01S17/36

摘要： Provided are a thickness measuring apparatus and a thickness measuring method. The thickness measuring method includes irradiating a first laser beam of a first wavelength λ1 to a transparent substrate and measuring intensity of the first laser beam transmitting through the transparent substrate; irradiating a second laser beam of a second wavelength λ2 to the transparent substrate and measuring intensity of the second laser beam transmitting through the transparent substrate; and extracting a rotation angle on a Lissajous graph using the first and second laser beams transmitting through the transparent substrate. A phase difference between adjacent rays by multiple internal reflection of the first laser beam and a phase difference between adjacent rays by multiple internal reflection of the second laser beam is maintained at π/2.

公开(公告)号：US09867536B2

公开(公告)日：2018-01-16

申请号：US15042592

申请日：2016-02-12

申请人： Bioptigen, Inc.

发明人： Joseph A. Izatt ,  Eric L. Buckland ,  Bradley A. Bower ,  Robert H. Hart

IPC分类号： A61B3/10 ,  G01B9/02 ,  A61B3/117 ,  A61B3/12

CPC分类号： A61B3/102 ,  A61B3/117 ,  A61B3/1225 ,  G01B9/0201 ,  G01B9/02078 ,  G01B9/02091

摘要： Optical coherence tomography systems for imaging a whole eye are provided including a sample arm including focal optics that are configured to rapidly switch between at least two scanning modes in less than about 1.0 second.

公开(公告)号：US09778019B2

公开(公告)日：2017-10-03

申请号：US14929374

申请日：2015-11-01

申请人： King Abdul Aziz City for Science and Technology ,  B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus ,  Institute of Chemistry of New Materials of National Academy of Sciences of Belarus

发明人： Alexander Vasilevich Agashkov ,  Nikolai Stanislavovich Kazak ,  Vladimir Enokovich Agabekov ,  Marzook Saleh O Alshammari ,  Mohammed A Binhussain

IPC分类号： G01B9/02 ,  G01J9/02

CPC分类号： G01B9/02011 ,  G01B9/0201 ,  G01J9/02

摘要： A differential polarization interferometer is provided. An interferometer performs direct measurement of phase shift of a light wave passed under an arbitrary angle through a sample composed of a transparent substrate holding a thin deposited test film, for metamaterial testing. An example apparatus has a laser source and a first polarizer, and two optically connected arms. A first arm creates orthogonally polarized components of a single output beam for a broadband non-polarizing beam splitter. A second arm has a controllable phase retarder to introduce a phase shift into one polarization component of the reflected single output beam, and a second polarizer to equalize and mix the polarization components of the reflected single output beam. This transforms the reflected single output beam into a beam resulting from interference of polarization components of the reflected single output beam. A photodetector transforms an intensity of the beam into an electric signal for output.

公开(公告)号：US09719772B2

公开(公告)日：2017-08-01

申请号：US14869568

申请日：2015-09-29

申请人： TELEDYNE SCIENTIFIC & IMAGING, LLC

发明人： John E. Mansell ,  Milind Mahajan ,  Graham J. Martin

IPC分类号： G01B9/02 ,  G01B11/14 ,  G01D5/26 ,  G01B11/02 ,  G01D5/34 ,  G01S17/10 ,  G01S7/481 ,  G01S7/486

CPC分类号： G01B9/02049 ,  G01B9/02002 ,  G01B9/0201 ,  G01B9/02028 ,  G01B11/026 ,  G01B11/14 ,  G01B2290/35 ,  G01D5/266 ,  G01D5/268 ,  G01D5/34 ,  G01S7/4818 ,  G01S7/4865 ,  G01S7/4868 ,  G01S17/10

摘要： A fiber optic sensing system for determining the position of an object requires a light source, an optical fiber, a fiber optic splitter, a fiber tip lens, an optical detector and signal processing circuitry. Light emitted by the light source is conveyed via optical fiber and the splitter to the lens and onto an object, such that at least a portion of the light is reflected by the object and conveyed via fiber and the splitter to the detector. Signal processing circuitry coupled to the detector determines the position of the object with respect to the lens based on a characteristic of the reflected light. The system is suitably employed with a hydraulic accumulator having a piston, the position of which varies with the volume of fluid in the accumulator, with the system arranged to determine the position of the piston, from which the volume can be calculated.

公开(公告)号：US20160231099A1

公开(公告)日：2016-08-11

申请号：US14929374

申请日：2015-11-01

申请人： King Abdul Aziz City for Science and Technology ,  B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus ,  Institute of Chemistry of New Materials of National Academy of Sciences of Belarus

发明人： Alexander Vasilevich Agashkov ,  Nikolai Stanislavovich Kazak ,  Vladimir Enokovich Agabekov ,  Marzook Saleh O Alshammari ,  Mohammed A. Binhussain

IPC分类号： G01B9/02

CPC分类号： G01B9/02011 ,  G01B9/0201 ,  G01J9/02

摘要： A differential polarization interferometer is provided. An interferometer performs direct measurement of phase shift of a light wave passed under an arbitrary angle through a sample composed of a transparent substrate holding a thin deposited test film, for metamaterial testing. An example apparatus has a laser source and a first polarizer, and two optically connected arms. A first arm creates orthogonally polarized components of a single output beam for a broadband non-polarizing beam splitter. A second arm has a controllable phase retarder to introduce a phase shift into one polarization component of the reflected single output beam, and a second polarizer to equalize and mix the polarization components of the reflected single output beam. This transforms the reflected single output beam into a beam resulting from interference of polarization components of the reflected single output beam. A photodetector transforms an intensity of the beam into an electric signal for output.

摘要翻译： 提供了一种差分偏振干涉仪。 干涉仪直接测量通过由保持薄沉积的测试膜的透明衬底组成的样品在任意角度通过的光波的相移，用于超材料测试。 示例性设备具有激光源和第一偏振器，以及两个光学连接的臂。 第一臂为宽带非偏振分束器产生单个输出光束的正交极化分量。 第二臂具有可控相位延迟器，用于将相移引入反射的单个输出光束的一个偏振分量;以及第二偏振器，用于均衡和混合反射的单个输出光束的偏振分量。 这将反射的单个输出光束变换成由反射的单个输出光束的偏振分量的干涉导致的光束。 光电检测器将光束的强度变换为电信号以输出。

公开(公告)号：US09310185B2

公开(公告)日：2016-04-12

申请号：US14299725

申请日：2014-06-09

申请人： MEDLUMICS, S.L.

发明人： Juan Lloret Soler ,  Kirill Zinoviev ,  José Luis Rubio Guivernau ,  Eduardo Margallo Balbás

IPC分类号： G02F1/035 ,  G01B9/02 ,  G02F1/025 ,  G02F1/225 ,  G02B6/12 ,  A61B5/00

CPC分类号： G01B9/02091 ,  A61B5/0066 ,  G01B9/0201 ,  G02B2006/12142 ,  G02F1/025 ,  G02F1/2257 ,  G02F2201/06 ,  G02F2203/50

摘要： Systems and methods are presented for modulating a beam of radiation, such that the modulated beam exhibits substantially null residual amplitude modulation (RAM). An electro-optical modulator is presented that includes a waveguide, a first region associated with the waveguide and a second region associated with the waveguide. The waveguide is designed to guide a beam of radiation. A first electric potential applied to the first region causes a first modulation to the beam of radiation while a second electric potential applied to the second region causes a second modulation to the beam of radiation. The first modulation combined with the second modulation provides substantially null residual amplitude modulation of the beam of radiation.

摘要翻译： 呈现用于调制辐射束的系统和方法，使得调制的光束呈现基本上为零的残余幅度调制（RAM）。 提出了一种电光调制器，其包括波导，与波导相关联的第一区域和与波导相关联的第二区域。 波导被设计成引导辐射束。 施加到第一区域的第一电位对辐射束进行第一调制，而施加到第二区的第二电位对辐射束施加第二调制。 与第二调制组合的第一调制提供辐射束的基本上零的剩余幅度调制。

公开(公告)号：US09279659B2

公开(公告)日：2016-03-08

申请号：US13355381

申请日：2012-01-20

申请人： Joseph A. Izatt ,  Al-Hafeez Dhalla

发明人： Joseph A. Izatt ,  Al-Hafeez Dhalla

IPC分类号： G01B9/02 ,  A61B3/10

CPC分类号： G01B9/02091 ,  A61B3/102 ,  G01B9/02004 ,  G01B9/0201 ,  G01B9/02078

摘要： Systems and methods are disclosed for optical coherence tomography (OCT). For example, imaging can use optical phase modulators based on optical delay lines that, in conjunction with a swept-source laser, can be used to achieve heterodyne swept source optical coherence tomography (SSOCT). These techniques resolve the complex conjugate ambiguity in SSOCT, thereby doubling the usable imaging range. This increased imaging range has numerous important clinical applications in ophthalmology, cardiology and radiology, as well as applications in small animal and non-biological imaging. These methods are superior to prior disclosed methods requiring acousto-optic or electro-optic modulators with respect to complexity, efficiency, imaging speed and image quality.

摘要翻译： 公开了用于光学相干断层摄影（OCT）的系统和方法。 例如，成像可以使用基于光学延迟线的光学相位调制器，其结合扫频激光器可用于实现外差扫描光学相干断层扫描（SSOCT）。 这些技术解决了SSOCT中复杂的共轭歧义，从而使可用成像范围翻倍。 这种增加的成像范围在眼科，心脏病学和放射学以及小动物和非生物成像中的应用具有许多重要的临床应用。 这些方法优于先前公开的在复杂性，效率，成像速度和图像质量方面需要声光或电光调制器的方法。