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公开(公告)号：WO1990014582A1
公开(公告)日：1990-11-29
申请号：PCT/JP1990000640
申请日：1990-05-18
Applicant: KABUSHIKI KAISHA KOMATSU SEISAKUSHO , WAKABAYASHI, Osamu; , KOWAKA, Masahiko; , KOBAYASHI, Yukio;
Inventor： KABUSHIKI KAISHA KOMATSU SEISAKUSHO
IPC: G01J09/02
CPC classification number: G01J9/0246 , G01J3/26
Abstract: A wavelength detector in which reference light (31) generated in a reference light source (30) and light (11) to be detected are directed to an etalon (62), and the light that has transmitted through the etalon is detected by light detecting means (64). The front focal surface (50) of a collimator lens (61) is irradiated with the reference light and the light to be detected. These lights are converted into parallel rays through the collimator lens and fall on the etalon. The reference light and the light to be detected that have passed through the etalon are focused by focusing lens means (63) on the detecting surface of light detecting means to form thereon interference fringes that correspond to the reference light and the light to be detected. Based on the interference fringes, relative wavelength of the light to be detected to the reference light, i.e., the absolute wavelength of the light to be detected, is measured.
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12.发明申请A PRISMATIC ACOUSTO-OPTIC DIRECTION-OF-ARRIVAL INTERFEROMETER FOR RADIO FREQUENCY SIGNALS 审中-公开一种用于无线电频率信号的静态光学方向直达干涉仪
公开(公告)号：WO1986007451A1
公开(公告)日：1986-12-18
申请号：PCT/AU1986000169
申请日：1986-06-12
IPC: G01J09/02
CPC classification number: G01S3/46
Abstract: A prismatic acousto-optic interferometer in which a light input is split into two parallel beams (2, 3) and the beams are independently modulated and then recombined, characterised by a pair of Kosters prisms (1, 8) placed back-to-back but spaced apart on a common axis to divide a light beam passed into a first Kosters prism into a pair of parallel light beams extending between the prisms, at least one of the parallel light beams (2, 3) being reflected out by a light splitter (6, 7), the light beams being combined in the second Kosters prism (8).
Abstract translation: 一种棱镜式声光干涉仪，其中光输入被分成两个平行光束（2,3），并且光束被独立调制，然后再结合，其特征在于一对背靠背放置的Kosters棱镜（1,8） 但是在公共轴线上间隔开以将通过第一Kosters棱镜的光束分成在棱镜之间延伸的一对平行光束，平行光束（2,3）中的至少一个被光分离器 （6,7），所述光束被组合在所述第二Kosters棱镜（8）中。
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13.发明申请PHASE DETECTION DEFLECTOMETER-TYPE OPTICAL DEVICE HAVING A LARGE MEASURING RANGE 审中-公开具有大尺度测量范围的相位检测型偏光仪型光学器件
公开(公告)号：WO1993020416A1
公开(公告)日：1993-10-14
申请号：PCT/FR1993000323
申请日：1993-03-31
IPC: G01J09/02
CPC classification number: G01M11/0257 , G01B11/255 , G01M11/005 , G02B13/0095 , G02B27/4233
Abstract: A phase detection deflectometer-type optical device. Between the grating and the CCD camera, a primary lens (19) with a large entrance pupil provides an intermediate image on a ground glass (20), and the intermediate image passes through a secondary optical member (21) which uses it to form a final image on the sensor (6) of the CCD camera.
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公开(公告)号：WO1993017311A1
公开(公告)日：1993-09-02
申请号：PCT/DE1993000172
申请日：1993-03-01
Applicant: PFISTER, Klaus
IPC: G01J09/02
CPC classification number: G01B11/2441
Abstract: The object of the invention is a shearing measuring head with a very compact construction owing to the use of concave mirrors in a Michelson interferometer arrangement, which permits phase shifts and may if desired be operated with an upstream object lens.
Abstract translation: 本发明的目的是一种具有非常紧凑结构的剪切测量头，这是因为在迈克尔逊干涉仪装置中使用凹面镜，其允许相移，并且如果需要，可以使用上游物镜进行操作。
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15.发明申请
公开(公告)号：WO1988008121A1
公开(公告)日：1988-10-20
申请号：PCT/GB1988000250
申请日：1988-03-31
IPC: G01J09/02
CPC classification number: G01J9/0215 , G01J3/18 , G01J2009/0288 , G01J2009/0296
Abstract: A wavelength-independent-interferometer comprises means to receive light (10) from a field of view, means (BS1) to separate the light into two beams (11, 12), means (BS2) to combine the two beams, and dispersive means (30) interposed in the path (12) of one of the two beams to produce a wavelength-dependent shear. The dispersive means may be a transmission diffraction grating or a reflection grating. In the arrangement shown the optical elements are combined in a modified Mach-Zehnder interferometer. When the conventional Mach-Zehnder interferometer is illuminated with coherent light the separation of interference fringes produced in the interference plane is inversely proportional to the wavelength. By introducing a dispersive element in the invention the detector is sensitised to a pre-determined fringe separation. A moveable reticle is placed in front of a detector to sensitise the detector to the fringe pattern.
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Patent Agency Ranking
公开(公告)号：EP0133356A3
公开(公告)日：1988-06-01
申请号：EP84305063
申请日：1984-07-25
Applicant: Quantum Diagnostics, Ltd.
Inventor： Birnach, Curtis , Tanner, Jay
Abstract: @ An optical processing system based on noncoherent light processing employs both geometrical and diffraction optical systems. One portion of the optical system (25, 26) preforms a subtraction operation of the image from itself where one of the subtracted images is relatively defocused and one is delayed in time from the other. The subtracted image is edge- enhanced (32) and then applied to a spatial filter employing an interferometer (56) in which spatial filters (61, 62) are contained in the interferometer iris plates (59, 60). Additional spatial filtering (72) is performed on the interference image and the processed image is displayed in an appropriate display (78, 81) which can selectively view the processed image, the unprocessed image, or combinations of the two. Light storage elements are employed for storing the processed images in appropriate buffers (23, 24, 64) over a given length of time. The buffers are read out by a flashlamp. Suitable shutters (15, 16, 80, 82) are closed during the readout process.
Abstract translation: 基于非相干光处理的光学处理系统采用几何和衍射光学系统。 光学系统的一部分执行图像的相减操作，其中一个相减的图像相对散焦，并且一个在时间上相对延迟。 减法图像是边缘增强的，然后应用于采用干涉仪的空间滤波器，其中空间滤波器包含在干涉仪虹膜中。 对干涉图像执行附加的空间滤波，并且处理的图像被显示在可以选择性地观看处理的图像，未处理的图像或两者的组合的适当的显示中。 光存储元件用于在给定的时间长度内将经处理的图像存储在适当的缓冲器中。 缓冲器由闪光灯读出。 合适的百叶窗在读出过程中关闭。
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17.发明公开
公开(公告)号：EP0165173A3
公开(公告)日：1987-04-29
申请号：EP85401109
申请日：1985-06-05
Inventor： Philbert, Michel
IPC: G01J09/02
CPC classification number: G01J9/02 , G01J2009/0261
Abstract: An optical system for analyzing and correcting wave fronts comprising a deformable mirror for correcting wave fronts and a system for analyzing and detecting phase distorsion, an interferometer with lateral duplication constituting the analyses system, receiving the wave front for analysis and duplicating it and deducing from two neighbouring wave fronts obtained signals to control deformation of the said deformable mirror, wherein this lateral duplication interferometer is a polorization interferometer consisting of a Wollaston double-refractive biprism with an angle 0, the two prisms being assembled head to tail and cut parallel to the crystallographic axis such that the respective axes are parallel and perpendicular to the edges of the prisms a polarizer and an anlayser on either side of the said biprism and an oscillating optical member on the path of the said biprism.
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公开(公告)号：EP0158172A3
公开(公告)日：1986-09-17
申请号：EP85103201
申请日：1985-03-19
Applicant: THE PERKIN-ELMER CORPORATION
Inventor： Marshall, Hamilton W., Jr. , Hirst, George E.
CPC classification number: G01J9/02 , G01M11/005
Abstract: Disclosed is a system and a method in which a diffraction grating is used which is circularly ruled to diffract a beam with a wavefront comparable with the expected wavefront reflected from an optic under test so that when beams having well defined wavefronts are directed to the grating (reference) and to the test optic, their return beams may be compared by conventional inter-ferometer techniques. No attempt is made to modify the return beam from the test optic into conventional well known wavefronts such as spherical or parallel for testing purposes.
Abstract translation: 公开了一种系统和方法，其中使用衍射光栅，该衍射光栅圆形地衍射具有与从被测光学器件反射的预期波前相当的波前的光束，使得当具有明确定义的波前的光束被引导到光栅（ 参考）和测试光学元件，它们的返回光束可以通过常规的测温技术进行比较。 没有尝试将来自测试光学器件的返回光束修改成传统的众所周知的波前，例如球形或平行以用于测试目的。
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公开(公告)号：EP0134487A3
公开(公告)日：1985-12-27
申请号：EP84108079
申请日：1984-07-10
Applicant: THE PERKIN-ELMER CORPORATION
Inventor： Krohn, William T. , McNally, Mark J. , Abreu, Rene
IPC: G01J09/02
CPC classification number: G01J9/02 , G01J2009/0211
Abstract: This invention relates to unequal path interferometers which are adapted, among other possible uses, for use in detecting coherent radiation as from a laser in a packet of radiation including incoherent background radiation, which includes an unequal optical path length interferometer of the type in which portions of the radiation impinging on the interferometric component are caused to be recombined after travelling two different optical paths; the optical paths differing in length by an amount substantially greater than the coherence length of the non-coherent radiation but substantially less than the coherence length of the coherent radiation; the unequal optical path length interferometric component including a crystalline cell having anisotropic properties; circuitry for applying an ultrasonic sound wave to the crystalline cell to vary the effective index of refraction of the crystalline cell in a preselected systematic manner; a detector for detecting the intensity of the recombined portions and producing a signal representative thereof, said signal having a variable component caused by the varying constructive and destructive interference of the recombined coherent radiation components, while the recombined non-coherent radiation components produce only a substantially steady background signal.
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20.发明申请
公开(公告)号：WO1996027121A1
公开(公告)日：1996-09-06
申请号：PCT/RU1996000045
申请日：1996-02-27
Applicant: NIZHNY NOVGOROD CENTER FOR HIGH TECHNOLOGY INCUBATION (NCHTI) , INSTITUTE OF APPLIED PHYSICS OF RUSSIAN ACADEMY OF SCIENCE (IAP RAS) , FELDSHTEIN, Felix Isaakovich , GELIKONOV, Grigory Valentinovich , GELIKONOV, Valentin Mikhailovich , GLADKOVA, Natalya Dorofeevna , LEONOV, Vladimir Innokentievich , SERGEEV, Alexandr Mihailovich
Inventor： NIZHNY NOVGOROD CENTER FOR HIGH TECHNOLOGY INCUBATION (NCHTI) , INSTITUTE OF APPLIED PHYSICS OF RUSSIAN ACADEMY OF SCIENCE (IAP RAS)
IPC: G01J09/02
CPC classification number: G02F1/0134 , G01B9/02091 , G01B2290/35 , G02F1/2252
Abstract: The invention relates to industrial physics, in particular to the class of devices used for investigating the internal structure of objects, and can be used in medicine for diagnosis of the state of individual organs and systems in a human subject, in particular for optical coherence tomography, and in industrial diagnostics, e.g. for monitoring industrial processes. The aim of the invention is to create an optical fibre interferometer which, when used as part of an optical coherence tomography system, will permit investigation of mediums with low characteristic times for changes in characteristics or position relative to the optical probe, for example in in vivo investigation of tissues. Another aim of the present invention is to produce an optical fibre piezo-electric transducer suitable for use in an optical fibre interferometer to ensure that the mediums in question are scanned to the requisite depth. In the optical fibre interferometer as developed, the piezo-electric transducer in the form of an optical fibre controlled delay line serves as the optical fibre part of the interferometer leg which allows the virtual inertia-free adjustment of the length of the interferometer leg and therefore adjustment of the difference in optical lengths of the legs by a factor of at least several tens of times the working wavelengths of the interferometer. The optical fibre piezo-electric transducer as designed takes the form of an optical fibre piezo-electric controlled delay line and comprises a piezo-ceramic wafer on the opposing surfaces of which are provided electrodes and an optical fibre. It is expedient to make the wafer in the form of a disc and to lay the fibre in a spiral, which ensures that the length of the optical fibre can be altered within broad limits without inertia and with a transducer of small dimensions.
Abstract translation: 本发明涉及工业物理学，特别涉及用于调查物体内部结构的装置类别，并且可用于医学诊断人类受试者个体器官和系统的状态，特别是用于光学相干层析成像 ，以及工业诊断，例如 用于监测工业过程。 本发明的目的是创建一种光纤干涉仪，当光学相干断层摄影系统被用作光学相干断层扫描系统的一部分时，将允许对特性或介质相对于光学探针变化的特性时间较低的介质进行研究，例如在 组织体内研究。 本发明的另一个目的是生产一种适用于光纤干涉仪的光纤压电换能器，以确保所讨论的介质被扫描到必要的深度。 在开发的光纤干涉仪中，光纤控制延迟线形式的压电换能器用作干涉仪腿的光纤部分，允许虚拟无惯性地调节干涉仪腿的长度，因此 将腿的光学长度的差异调整为干涉仪的工作波长的至少几十倍。 设计的光纤压电换能器采用光纤压电控制延迟线的形式，并且在其相对表面上设置有电极和光纤的压电陶瓷晶片。 将晶片制成圆盘的形式是有利的，并且将纤维铺设成螺旋状，这确保光纤的长度可以在无惯性的宽范围内和小尺寸的换能器中改变。
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