公开(公告)号：US4990762A

公开(公告)日：1991-02-05

申请号：US332796

申请日：1981-12-21

Applicant: Leonard S. Taylor

Inventor： Leonard S. Taylor

IPC: G01J1/42 ,  G01J9/00

CPC classification number: G01J1/4257 ,  G01J2009/002

Abstract: An intensity measurement system portion of a phase measurement and controlystem permits rapid measurement of the laser field intensity profile in the transverse plane of a main laser beam. The intensity measurement system portion measures the laser field intensity profile by measuring the intensities of a plurality of beam samples of the main laser beam. The aforementioned measured intensities are processed in a phase computer according to a predetermined algorithm to generate drive current profiles in response to the phase variations of the main laser beam. These drive currents a dither-control amplifier which causes electromechanical movement of a plurality of mirror segments of a multi-dither mirror to correct for the random phase variations in the main laser beam. An important consideration in configuring the intensity measurement system portion of the present invention is the use of a reflecting stop and a reflecting stop detector combination to obstruct one of the plurality of beam samples and to measure the intensity thereof at the reflecting stop position.

Abstract translation: 相位测量和控制系统的强度测量系统部分允许快速测量主激光束的横向平面中的激光场强度分布。 强度测量系统部分通过测量主激光束的多个光束样本的强度来测量激光场强分布。 上述测量的强度根据预定算法在相位计算机中进行处理，以响应主激光束的相位变化产生驱动电流曲线。 这些驱动电流是抖动控制放大器，其导致多次抖动反射镜的多个镜像段的机电运动，以校正主激光束中的随机相位变化。 在配置本发明的强度测量系统部分中的重要考虑是使用反射停止和反射停止检测器组合来阻挡多个光束样本中的一个并且在反射停止位置测量其强度。

公开(公告)号：US20240039628A1

公开(公告)日：2024-02-01

申请号：US18278250

申请日：2021-06-28

Applicant: PENG CHENG LABORATORY

Inventor： Shupeng Deng ,  Caiming Sun ,  Weiwei Liu ,  Aidong Zhang

IPC: H04B10/079

CPC classification number: H04B10/0795 ,  G01J2009/002

Abstract: An on-chip wavefront sensor, an optical chip, and a communication device are disclosed. The on-chip wavefront sensor includes an antenna array configured for separating received spatial light to obtain a plurality of sub-light spots; a reference light source module configured for generating a plurality of intrinsic light beams; a phase shifter array configured for performing phase shifting processing on the intrinsic light beams to obtain reference light; and an optical detection module configured for performing coherent balanced detection according to the reference light and the sub-light spots to obtain a photocurrent corresponding to each of the sub-light spots.

公开(公告)号：US20230152162A1

公开(公告)日：2023-05-18

申请号：US17594945

申请日：2020-04-29

Applicant: WOOPTIX S.L.

Inventor： David CARMONA BALLESTER ,  Juan Manuel TRUJILLO SEVILLA ,  Sergio BONAQUE GONZALEZ ,  Jose Manuel RODRIGUEZ RAMOS

IPC: G01J9/00 ,  H04N23/957 ,  G01J1/42

CPC classification number: G01J9/00 ,  H04N23/957 ,  G01J1/42 ,  G01J2009/002

Abstract: The disclosure relates to a method for characterizing and operating a display, such as a light-field display or a display with or without a phase screen, comprising: an input stage wherein at least one test signal is provided as input to the display, a capture stage for obtaining display output information, said capture stage comprising capturing, by at least one acquisition system placed at a distance from the display, an impulse response of the display in response to the at least one provided test signal, wherein said capturing of an impulse response comprises measuring the at the at least one acquisition system received intensity distribution of the light emitted by the display in response to the at least one test signal, and/or capturing the wavefront phase of the light emitted by the display in response to the at least one test signal.

公开(公告)号：US20190013865A1

公开(公告)日：2019-01-10

申请号：US15745142

申请日：2016-07-15

Applicant: THE SECRETARY, DEPARTMENT OF ELECTRONICS AND INFORMATION TECHNOLOGY ,  INDIAN INSTITUTE OF TECHNOLOGY GUWAHATI

Inventor： Bosanta Ranjan Boruah ,  Santanu Konwar

IPC: H04B10/112 ,  H04B10/548

CPC classification number: H04B10/1121 ,  G01J2009/002 ,  H04B10/548

Abstract: The present invention provides a free space optical communication system that uses orthogonal modes of aberration in a laser beam as means for encoding the information. The system comprises a transmission station which transmits the user defined information in terms of the amplitudes of certain orthogonal aberration modes present in the transmitted beam. The beam then travels through free space before it reaches the receiving station. The receiving station comprises a high speed wavefront sensor of light beams. The wavefront sensor measures the amplitudes of various orthogonal aberration modes present in the incident beam at different instants of time. The amplitudes of the orthogonal modes at a certain regular time interval are then used to extract the user information.

公开(公告)号：US09921111B2

公开(公告)日：2018-03-20

申请号：US15209535

申请日：2016-07-13

Applicant: RAM Photonics, LLC

Inventor： Seung-Whan Bahk

IPC: G01B9/02 ,  G01J9/02 ,  G03F7/20 ,  G01J9/00

CPC classification number: G01J9/0215 ,  G01B9/02 ,  G01J9/02 ,  G01J2009/002 ,  G03F7/706

Abstract: A method for performing optical wavefront sensing includes providing an amplitude transmission mask having a light input side, a light output side, and an optical transmission axis passing from the light input side to the light output side. The amplitude transmission mask is characterized by a checkerboard pattern having a square unit cell of size Λ. The method also includes directing an incident light field having a wavelength λ to be incident on the light input side and propagating the incident light field through the amplitude transmission mask. The method further includes producing a plurality of diffracted light fields on the light output side and detecting, at a detector disposed a distance L from the amplitude transmission mask, an interferogram associated with the plurality of diffracted light fields. The relation 0

公开(公告)号：US09459459B2

公开(公告)日：2016-10-04

申请号：US14610644

申请日：2015-01-30

Applicant: Imagine Optics

Inventor： Nicolas Lefaudeux ,  Xavier Levecq

IPC: G02B27/14 ,  G02B27/10 ,  G02B27/09 ,  G01M11/00 ,  G01J1/04 ,  G01J9/00 ,  G02B23/06

CPC classification number: G02B27/0983 ,  G01J1/0411 ,  G01J2009/002 ,  G01M11/005 ,  G02B23/06 ,  G02B27/09 ,  G02B27/108

Abstract: Methods and devices for reducing the dimensions of an incident light beam of large dimensions are disclosed. The method includes the dispatching of a first light beam toward a partially reflecting plate of dimensions suitable for the dimensions of the light beam of large dimensions, the dispatching onto a convergent reflective element of a second light beam arising from the transmission through the partially reflecting plate of the first light beam, the dispatching of a third light beam arising from the reflection on the convergent reflective element of the second light beam, toward said partially reflecting plate, and the reflection of the third beam on the partially reflecting plate so as to form a fourth light beam.

Abstract translation: 公开了用于减小大尺寸的入射光束的尺寸的方法和装置。 该方法包括将第一光束分配到适合于尺寸较大的光束的尺寸的部分反射板上，将其发射到通过部分反射板的透射体产生的第二光束的会聚反射元件上 的第一光束，将由第二光束的会聚反射元件上的反射产生的第三光束分配到所述部分反射板，并将第三光束反射到部分反射板上，以形成 第四个光束。

公开(公告)号：US20160255253A1

公开(公告)日：2016-09-01

申请号：US14501854

申请日：2014-09-30

Applicant: THE BOEING COMPANY

Inventor： Bryan Lee Kelchner ,  Kenneth Jerkatis ,  Richard Brooks Holmes ,  Nikolaus McNerney ,  Jed Donaldson

IPC: H04N5/225 ,  G02B26/08 ,  G02B17/06 ,  G02B23/08 ,  G02B7/182

CPC classification number: H04N5/2254 ,  F41G3/22 ,  G01J2009/002 ,  G01S3/786 ,  G01S7/497 ,  G01S17/58 ,  G01S17/66 ,  G01S17/95 ,  G02B7/1821 ,  G02B17/0605 ,  G02B23/08 ,  G02B26/008 ,  G02B26/0816 ,  G02B27/14 ,  H04B10/112 ,  H04B10/1125 ,  Y02A90/19

Abstract: An aero-optical disturbance measurement system includes a mirror supported by a gimbal for receiving a light beam from a light emitting source, reflecting the light beam to a first periscope fold mirror and therefrom reflecting the light beam directly to a second periscope fold mirror. A first concave off-axis paraboloid mirror receives the light beam reflected from second periscope fold mirror and therefrom a first fold mirror receives the light beam reflected directly from first concave off-axis paraboloid mirror. A second fold mirror receives the light beam reflected directly from the first fold mirror. A second concave off-axis paraboloid mirror receives the light beam reflected directly from second fold mirror which reflects the light beam to a fast steering mirror. A fine tracker camera coupled to an embedded processer receives portion of light beam from fast steering mirror. Embedded processor controls movement of fast steering mirror and gimbal.

Abstract translation: 航空光学干扰测量系统包括由云台支撑的反射镜，用于接收来自发光源的光束，将光束反射到第一潜望镜折射镜，并将光束直接反射到第二潜望镜折射镜。 第一凹入离轴抛物面镜接收从第二潜望镜折射镜反射的光束，并且由此第一折射镜接收从第一凹入离轴抛物面反射镜直接反射的光束。 第二折叠镜接收直接从第一折叠镜反射的光束。 第二凹轴离轴抛物面镜接收从第二折射镜直接反射的光束，其将光束反射到快速转向镜。 耦合到嵌入式处理器的精细跟踪摄像机接收来自快速转向镜的光束的一部分。 嵌入式处理器控制快速转向镜和万向节的运动。

公开(公告)号：US20160209646A1

公开(公告)日：2016-07-21

申请号：US15023281

申请日：2014-09-19

Applicant: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES

Inventor： Masayuki HATTORI ,  Yosuke TAMADA ,  Takashi MURATA ,  Yasuhiro KAMEI ,  Mitsuyasu HASEBE ,  Yutaka HAYANO ,  Shin OYA

IPC: G02B27/00 ,  G02B21/36 ,  G02B21/18 ,  G02B21/00 ,  G01J9/00 ,  G02B17/00 ,  G02B21/02

CPC classification number: G02B27/0068 ,  A61B5/0059 ,  A61B5/0068 ,  A61B5/0071 ,  G01J9/00 ,  G01J2009/002 ,  G01N21/6458 ,  G01N2021/1787 ,  G02B17/008 ,  G02B21/002 ,  G02B21/0096 ,  G02B21/02 ,  G02B21/06 ,  G02B21/18 ,  G02B21/361 ,  G02B21/367 ,  G02B27/0025

Abstract: The present invention is intended to provide an adaptive optics system and an optical device that allow correction of wavefront phase aberration with higher accuracy than before and have a wider correction range than the conventional ones, regardless of the distance between the observation target and the fluctuation layer, and the size of the observation target. An adaptive optics system includes: a wavefront phase modulator that makes aberration correction to incident light and emits the corrected light; and an imaging-conjugated position adjustment mechanism that adjusts freely within a specimen the position of a surface imaging-conjugated with a fluctuation correction surface formed by the wavefront phase modulator. The imaging-conjugated position adjustment mechanism adjusts the fluctuation correction surface to be imaging-conjugated with a fluctuation layer existing in the specimen.

Abstract translation: 本发明旨在提供一种自适应光学系统和光学装置，其允许以比以前更高的精度校正波前相位像差，并且具有比常规校正范围更宽的校正范围，而不管观察目标和波动层之间的距离如何 ，观察目标的大小。 自适应光学系统包括：波前相位调制器，其对入射光进行像差校正并发射校正的光; 以及成像共轭位置调整机构，其在样本内自由调节与由波前相位调制器形成的波动校正表面成像共轭的表面的位置。 成像共轭位置调整机构调整波动校正面，使其与存在于试样中的起伏层成像共轭。

公开(公告)号：US20150219904A1

公开(公告)日：2015-08-06

申请号：US14610644

申请日：2015-01-30

Applicant: IMAGINE OPTIC

Inventor： Nicolas Lefaudeux ,  Xavier Levecq

IPC: G02B27/09

CPC classification number: G02B27/0983 ,  G01J1/0411 ,  G01J2009/002 ,  G01M11/005 ,  G02B23/06 ,  G02B27/09 ,  G02B27/108

Abstract: Methods and devices for reducing the dimensions of an incident light beam of large dimensions are disclosed. The method includes the dispatching of a first light beam toward a partially reflecting plate of dimensions suitable for the dimensions of the light beam of large dimensions, the dispatching onto a convergent reflective element of a second light beam arising from the transmission through the partially reflecting plate of the first light beam, the dispatching of a third light beam arising from the reflection on the convergent reflective element of the second light beam, toward said partially reflecting plate, and the reflection of the third beam on the partially reflecting plate so as to form a fourth light beam.

Abstract translation: 公开了用于减小大尺寸的入射光束的尺寸的方法和装置。 该方法包括将第一光束分配到适合于尺寸较大的光束的尺寸的部分反射板上，将其发射到通过部分反射板的透射体产生的第二光束的会聚反射元件上 的第一光束，将由第二光束的会聚反射元件上的反射产生的第三光束分配到所述部分反射板，并将第三光束反射到部分反射板上，以形成 第四个光束。

公开(公告)号：US08619405B2

公开(公告)日：2013-12-31

申请号：US12740753

申请日：2008-10-29

Applicant: Anthony Y. Van Heugten

Inventor： Anthony Y. Van Heugten

IPC: A61B3/10

CPC classification number: A61B3/1015 ,  G01J9/00 ,  G01J2009/002 ,  G01M11/0264

Abstract: The present invention relates to a wavefront sensor using a pair of screens, each having a two-dimensional array of circular apertures, to achieve Moiré effects, and its use to measure the slope of a wavefront.