公开(公告)号：US3700334A

公开(公告)日：1972-10-24

申请号：US3700334D

申请日：1970-11-13

Applicant: NASA

Inventor： FYMAT ALAIN L ,  ABHYANKAR KRISHNA D

IPC: G01J3/453 ,  G01N21/21 ,  G01B9/02 ,  G01N21/40

CPC classification number: G01J3/4537 ,  G01N21/21

Abstract: A system for measuring the intensity and state of polarization of a radiation field as well as obtaining the spectral variations of these quantities with a wide range of spectral resolution, i.e., from low to extremely high resolution values, is disclosed. The system generally includes any standard or conventional twobeam interferometer which is modified by the inclusion of a polarizer in each of the beams and an analyzer positioned in front of a sensor or recording device. More specifically, the system employs a beam splitter which serves to divide light from a selected light source into a pair of individual light beams. Each of the light beams is directed through a polarizer. The polarizers are positioned to have preselected planes of polarization with respect to each other and with respect to the plane of polarization of the analyzer. The polarized light beams are applied to a variable optical retarder which serves to selectively modify the relative optical path lengths of the light beams. An optical mixer may be employed to recombine the two light beams. The recombined light beams are projected through an analyzer, such as a linear polarizer, to a sensor or recording device.

公开(公告)号：US3549260A

公开(公告)日：1970-12-22

申请号：US3549260D

申请日：1968-01-08

Applicant: BARRINGER RESEARCH LTD

Inventor： BARRINGER ANTHONY RENE

IPC: G01B9/02 ,  G01J3/453

CPC classification number: G01J3/4537

公开(公告)号：US20230375409A1

公开(公告)日：2023-11-23

申请号：US18136786

申请日：2023-04-19

Applicant: Rapid Phenotyping Pty Limited

Inventor： Selene Rodd-Routley

IPC: G01J3/453 ,  G01J3/14 ,  G01J9/02

CPC classification number: G01J3/4537 ,  G01J3/14 ,  G01J9/02 ,  G01J2009/0284 ,  G01J2009/0288

Abstract: Embodiments are disclosed relating to a refractively-scanning interferometer comprising an aperture that receives an incident light beam at a receiving angle, a beam splitter configured to split the incident light beam into a first beam and a second beam, a first and a second reflector arranged to reflect the first beam and second beam, respectively, towards a combining optical element, and a refractive Optical Path Difference (rOPD) assembly interposed between the beam splitter and the first reflector, wherein the rOPD Assembly refracts the first light beam an even number of times with induced phase discrepancy being a vector sum of a first phase discrepancy induced by a first refraction and a second phase discrepancy induced by a second refraction, the rOPD Assembly being configured such that the first phase discrepancy is substantially opposite in direction to the second phase discrepancy, a portion of the first and second phase discrepancies cancelling one another out to decrease magnitude of the phase discrepancy.

公开(公告)号：US09784681B2

公开(公告)日：2017-10-10

申请号：US14890530

申请日：2014-05-13

Applicant: THE GENERAL HOSPITAL CORPORATION

Inventor： Johannes F. de Boer ,  Mattijs De Groot

IPC: G01N21/64 ,  G01J3/453 ,  G01J3/02 ,  G01J3/433 ,  G01J3/44 ,  G01N21/47

CPC classification number: G01N21/6458 ,  G01J3/0218 ,  G01J3/433 ,  G01J3/4406 ,  G01J3/453 ,  G01J3/4532 ,  G01J3/4537 ,  G01N21/4795 ,  G01N21/6486 ,  G01N2021/6463 ,  G01N2021/6484

Abstract: Systems and methods according to exemplary embodiments of the present disclosure can be provided that can efficiently detect the amplitude and phase of a spectral modulation. Such exemplary scheme can be combined with self-interference fluorescence to facilitate a highly sensitive depth localization of self-interfering radiation generated within a sample. The exemplary system and method can facilitate a scan-free depth sensitivity within the focal depth range for microscopy, endoscopy and nanoscopy.

公开(公告)号：US20170160072A1

公开(公告)日：2017-06-08

申请号：US15236724

申请日：2016-08-15

Applicant: Finite Element Analyst, Inc.

Inventor： Eyad Ammari

IPC: G01B9/02 ,  G01J3/453

CPC classification number: G01B9/02043 ,  G01J3/4535 ,  G01J3/4537 ,  G01N2021/3595

Abstract: This disclosure provides an optical interferometer including a multi-faceted optical element that is rotated to introduce an optical path length difference between two different optical paths in the interferometer. The multi-faceted optical element can be configured to be rotated about an axis such that the optical path length difference between the first and second optical paths varies between a first value and a second value several times during one complete rotation of the optical element. The multi-faceted optical element can be rotationally symmetric having n-fold rotational symmetry. The two different optical paths can be non-coplanar with respect to each other and the multi-faceted optical element can be disposed in one of the optical paths or both the optical paths.

公开(公告)号：US07440108B2

公开(公告)日：2008-10-21

申请号：US10518418

申请日：2003-06-19

Applicant: John Edward Perrigo Beale ,  Andrew Robert Harvey ,  David William Fletcher-Holmes

Inventor： John Edward Perrigo Beale ,  Andrew Robert Harvey ,  David William Fletcher-Holmes

IPC: G01B9/02

CPC classification number: G01J3/4537 ,  G01J3/0205 ,  G01J3/2823

Abstract: The present invention relates to an imaging apparatus and comprises input and output polarisers, a first polarising beam splitter and at least one additional polarising beam splitter, a light sensitive detector and focussing means arranged on an axis. The input polariser resolves incident light into a single linear polarisation state. The first polarising beam splitter receives light from the input polarises, and resolves it into equal magnitude orthogonally polarised rays which are mutually spaced and have a path difference therebetween. The or each additional polarising beam splitter is arranged to receive light from the first polarising beam splitter. The transmission axis of the output polariser is parallel to or perpendicular to the transmission axis of the input polarises to resolve the orthogonally polarised light rays having past through the or each additional polarising beam splitter into the same or perpendicular polarisation state as light resolved by the, first polariser. The first polarising beam splitter, the or each additional polarising beam splitter and the focussing means are mutually spaced such that said mutually spaced rays are brought to coincidence whereby interference fringes are produced, the detector being arranged to detect the interference fringes. One beam splitter is mounted for movement perpendicular to said axis, whereas the other beam splitter(s) is/are rigidly mounted against movement.

Abstract translation: 本发明涉及一种成像装置，包括输入和输出偏振器，第一偏振分束器和至少一个附加的偏振分束器，光敏检测器和布置在轴上的聚焦装置。 输入偏振器将入射光分解为单线性偏振状态。 第一偏振分束器从输入偏振器接收光，并将其分解成相等的正交偏振光线，它们彼此间隔开并且在它们之间具有路径差。 该或每个附加的偏振分束器布置成接收来自第一偏振分束器的光。 输出偏振器的透射轴平行于或垂直于输入偏振器的透射轴，以将已经通过该或每个附加的偏振光束分离器的正交偏振光束解析为与由该光束分辨的光分解的相同或垂直的偏振状态， 第一个偏振器 第一偏振分束器，或每个附加的偏振分束器和聚焦装置相互间隔开，使得所述相互间隔的射线变得一致，从而产生干涉条纹，检测器被布置成检测干涉条纹。 一个分束器安装成垂直于所述轴线移动，而另一个分束器被刚性地安装成抵抗运动。

公开(公告)号：US5814362A

公开(公告)日：1998-09-29

申请号：US866897

申请日：1997-05-30

Applicant: Kurt Muntener

Inventor： Kurt Muntener

IPC: A23G1/04 ,  A23G1/10 ,  A23G1/12 ,  G01J3/453 ,  A23G1/06

CPC classification number: A23G1/10 ,  A23G1/042 ,  A23G1/12 ,  A23G1/125 ,  G01J3/4537

Abstract: In a method and an apparatus for refining chocolate mass within a trough, the trough contains at least one trough compartment wherein the chocolate mass is treated or conched. After entering the trough and after begin of operation of the machine, at least one additive, such as fat (cocoa butter), is added at a certain moment. Addition of the at least one additive is done into one compartment of the continuously operated conching machine. The composition of the chocolate mass is monitored after adding the additives by means of a spectrometer. An output signal of the spectrometer is used to control the added amount of the respective additive.

Abstract translation: 在用于在槽内精炼巧克力块的方法和装置中，槽包含至少一个槽室，其中巧克力块被处理或精磨。 进入槽后，机器开始运转后，至少加入一种添加剂，如脂肪（可可脂）。 将至少一种添加剂加入到连续操作的精炼机的一个隔室中。 通过光谱仪添加添加剂后，监测巧克力物质的组成。 使用光谱仪的输出信号来控制相应添加剂的添加量。

公开(公告)号：US5173744A

公开(公告)日：1992-12-22

申请号：US672794

申请日：1991-03-21

Applicant: Jens R. Dybwad

Inventor： Jens R. Dybwad

IPC: G01J3/02 ,  G01B9/02 ,  G01J3/45 ,  G01J3/453

CPC classification number: G01J3/4537

Abstract: A modified Michelson type of interferometer having a pair of substantially identical refractive prisms, each having a cross sectional shape of 1/2 of a hexagon, the division being along a line bisecting opposite sides of the hexagon, where each of the prisms has a side for beam input or output, a side that is coated to provide a mirror for beam reflection and a beamsplitter coating applied to one of the two surfaces along the line of division. Additionally, a collimating and/or focusing lens may be integral with the prism having the input or output side, such that linear, constant speed, relative scanning of the prisms in the direction of the line of division of the prisms enables the elimination of the mounting of all components, made a part of or attached to the prisms, to an optical bench.

Abstract translation: 一种改进的迈克尔逊型干涉仪，其具有一对基本上相同的折射棱镜，每个折射棱镜具有六边形的1/2的横截面形状，该分割沿着将六边形的相对侧面平分的线，其中每个棱镜具有一侧 用于光束输入或输出，被涂覆的一侧提供用于光束反射的反射镜，以及沿分割线施加到两个表面中的一个表面上的分束器涂层。 此外，准直和/或聚焦透镜可以与具有输入或输出侧的棱镜成一体，使得在棱镜的分割线的方向上棱镜的线性，恒速相对扫描使得能够消除 将所有部件安装到棱镜的一部分或附着在棱镜上。

公开(公告)号：US4732481A

公开(公告)日：1988-03-22

申请号：US42244

申请日：1987-04-24

Applicant: Shigeru Matsui ,  Masaru Inoue

Inventor： Shigeru Matsui ,  Masaru Inoue

IPC: G01B11/06 ,  G01B9/02 ,  G01J3/45 ,  G01J3/453

CPC classification number: G01B9/02024 ,  G01B9/02057 ,  G01J3/4537 ,  G01B2290/70

Abstract: A polarization interferometer includes a light source to be measured, a Wollaston prism, a pair of polarizers arranged in such a manner that the Wollaston prism is interposed between the polarizers and the plane of polarization of each polarizer is inclined at 45.degree. to each of two crystallographic axes of the Wollaston prism, a photodetector for detecting an interference fringe which is spatially formed by two light beams separated by the Wollaston prism, changeover means for causing one of the polarizers to changeover from one of polarizing and non-polarizing states to the other state, memory means for storing a first output signal which is delivered from the photodetector in a state that one polarizer is kept at the non-polarizing state, and means for dividing a second output signal which is delivered from the photodetector in a state that one polarizer is kept at the polarizing state, by the first output signal stored in the memory means.

Abstract translation: 偏振干涉仪包括待测量的光源，Wollaston棱镜，以这样的方式布置的一对偏振器，使得Wollaston棱镜插入在偏振器之间并且每个偏振器的偏振面之间倾斜45° Wollaston棱镜的晶轴，用于检测由由Wollaston棱镜分离的两个光束空间形成的干涉条纹的光电检测器，用于使偏振器之一从偏振和非偏振状态之一转换到另一个的转换装置 状态，用于存储在一个偏振器保持在非偏振状态的状态下从光电检测器传送的第一输出信号的存储装置，以及用于将从光电检测器传送的第二输出信号划分为一个 通过存储在存储装置中的第一输出信号将偏振器保持在偏光状态。

公开(公告)号：US4654530A

公开(公告)日：1987-03-31

申请号：US831078

申请日：1986-02-19

Applicant: Jens P. Dybwad

Inventor： Jens P. Dybwad

IPC: G01J3/453 ,  G01J3/45

CPC classification number: G01J3/4537

Abstract: An interferometer/spectroradiometer that uses a beamsplitter means for dividing an input beam into two separate beams and presents the resultant beams to a rotary refractive window from symmetrically oriented optical elements such that the optical path differences through the refractive window as it rotates are additive and non-linearities are subtracted. The beams are returned through the refractive window to the beamsplitter for dividing the input beam, where fringes are generated for application to appropriate detectors. The detector output is applied to Fourier transform computer equipment for digitizing and processing for presentation on a spectrum display device.

Abstract translation: 一种干涉仪/光谱辐射计，其使用分束器装置将输入光束分成两个单独的光束，并将合成的光束从对称取向的光学元件呈现为旋转折射窗，使得当其旋转时通过折射窗的光路差异是加和非 减去线性。 光束通过折射窗口返回到分束器，用于分割输入光束，其中生成条纹以用于适当的检测器。 检测器输出应用于用于数字化和处理的傅里叶变换计算机设备，用于在频谱显示装置上呈现。