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公开(公告)号：US11131845B2
公开(公告)日：2021-09-28
申请号：US16528252
申请日：2019-07-31
发明人： Stephen S. Hamann , Olav Solgaard
摘要： A patterned line of optical radiation can be steered in the other two directions (e.g., line patterned in y, steered in x and z) with a 1-D phase shifter array in a Fourier optics configuration. Preferably the patterned line is provided by forming a line focus and modulating it with an array of grating light valve devices in an amplitude modulation configuration. Phase modulation is preferably provided with an array of grating light valve devices in a phase modulation configuration.
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公开(公告)号：US10451402B2
公开(公告)日：2019-10-22
申请号：US13358254
申请日：2012-01-25
申请人： Zahid Yaqoob , Wonshik Choi , Toyohiko Yamauchi , Michael Feld , David Feld , Alison Hearn , Jonathan Feld
发明人： Zahid Yaqoob , Wonshik Choi , Toyohiko Yamauchi , Michael Feld
摘要： The present invention relates to a full-field reflection phase microscope. In a preferred embodiment, the invention can combine low-coherence interferometry and off-axis digital holographic microscopy (DHM). The reflection-based DHM provides highly sensitive and a single-shot imaging of cellular dynamics while the use of low coherence source provides a depth-selective measurement. A preferred embodiment of the system uses a diffraction grating in the reference arm to generate an interference image of uniform contrast over the entire field-of-view albeit low-coherence light source. With improved path-length sensitivity, the present invention is suitable for full-field measurement of membrane dynamics in live cells with sub-nanometer-scale sensitivity.
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公开(公告)号：US10288489B2
公开(公告)日：2019-05-14
申请号：US14401860
申请日：2013-05-29
申请人： NIKON CORPORATION
发明人： Katsura Otaki , Katsumi Sugisaki , Takashi Gemma
摘要： There is provided a wavefront measuring method for obtaining wavefront information of an optical system. The method including: irradiating the optical system with a light beam; allowing the light beam passed via the optical system to come into a diffraction grating having periodicity in a first direction; and obtaining the wavefront information based on an interference fringe formed by light beams generated from the diffraction grating. The diffraction grating including: first portions which allow light to pass therethrough; and second portions which shield light, each of the second portions being provided between two of the first portions. A ratio between a width of one of the first portions in the first direction and a width of one of the second portions in the first direction is changed in the first direction, the one of the first portions and the one of the second portions being adjacent to each other.
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公开(公告)号：US20170113481A1
公开(公告)日：2017-04-27
申请号：US14703017
申请日：2015-10-27
IPC分类号： B42D25/328 , G02B27/22 , G02B27/60 , G02B3/00 , D21H21/48 , G06K9/62 , H04N5/44 , B42D25/342 , B42D25/40 , G02B27/50 , G06K9/00
CPC分类号： B42D25/328 , B42D25/324 , B42D25/342 , B42D25/351 , B42D25/40 , B42D25/415 , B42D25/42 , B42D25/425 , B42D25/43 , B42D25/435 , B42D25/44 , B42D25/445 , D21H21/48 , G02B3/0006 , G02B3/0018 , G02B3/0031 , G02B3/0043 , G02B27/2207 , G02B27/2214 , G02B27/50 , G02B27/60 , G06K9/00442 , G06K9/6215 , H04N5/44
摘要： The present invention describes methods and apparatuses for creating superposition shape images by superposed base and revealing layers of lenslet gratings. The superposition shape images form a message recognizable by a human observer or by an image acquisition and computing device such as a smartphone. The superposition shape images may be created by different superposition techniques ranging from 1D moiré, 2D moiré and level-line moiré superposition techniques to lenticular image and phase shift superposition techniques. Moiré superposition techniques enable creating superposition shape images at different apparent depth levels. Applications comprise the protection of documents and valuable articles against counterfeits, the creation of eye-catching advertisements as well as the decoration of buildings and exhibitions.
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公开(公告)号：US06873733B2
公开(公告)日：2005-03-29
申请号：US09766325
申请日：2001-01-19
CPC分类号： G02B27/0025 , G02B27/50
摘要： The present invention provides extended depth of field or focus to conventional Amplitude Contrast imaging systems. This is accomplished by including a Wavefront Coding mask in the system to apply phase variations to the wavefront transmitted by the Phase Object being imaged. The phase variations induced by the Wavefront Coding mask code the wavefront and cause the optical transfer function to remain essentially constant within some range away from the in-focus position. This provides a coded image at the detector. Post processing decodes this coded image, resulting in an in-focus image over an increased depth of field.
摘要翻译： 本发明将扩展的景深或焦点提供给传统的幅度对比度成像系统。 这是通过在系统中包括波前编码掩码来实现的，以将相位变化应用于正被成像的相位对象传输的波前。 由波前编码掩模引起的相位变化对波前进行编码，并使光学传递函数在远离对焦位置的某个范围内保持基本恒定。 这在检测器处提供了编码图像。 后处理解码该编码图像，导致在增加的景深上的对焦图像。
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公开(公告)号：US4165149A
公开(公告)日：1979-08-21
申请号：US870081
申请日：1978-01-17
申请人： Akiyoshi Suzki , Yoichi Hirabayashi
发明人： Akiyoshi Suzki , Yoichi Hirabayashi
CPC分类号： G03F9/7088
摘要： Disclosed in this specification is a scanning device which scans an object having a flat reflection surface and an inclined reflection surface with an inclination relative to the flat reflection surface such as, for example, a mask and a wafer to be used in manufacturing IC, LSI, etc., with light beam, and detects only the reflected light from the inclined reflection surface with a light detector. In order to make it possible to detect only the reflected light from the inclined reflection surface with the light detector, a telecentric objective lens is used as the scanning lens in this scanning device, and the original point of deflection of the above-mentioned scanning light beam coincides with the center of the pupil of this telecentric objective lens. In addition, a filter is disposed on the pupil surface to intercept light from the flat reflection surface. An optical system between the scanning device and the object is of f-.theta.lens characteristics in order to compensate the non-linearity of the scanning beam caused by uniform angular velocity movement of the scanning device or the like.
摘要翻译： 在本说明书中公开了一种扫描装置，其扫描具有平坦反射面的物体和相对于平坦反射面倾斜的倾斜反射面，例如用于制造IC，LSI的掩模和晶片 等，并用光检测器仅检测来自倾斜反射面的反射光。 为了能够利用光检测器仅检测来自倾斜反射面的反射光，在该扫描装置中使用远心物镜作为扫描透镜，并且将上述扫描光的原始偏转点 光束与该远心物镜的光瞳的中心重合。 此外，滤光器设置在瞳孔表面上以拦截来自平坦反射表面的光。 扫描装置和物体之间的光学系统具有f-θ透镜特性，以便补偿由扫描装置等的均匀角速度移动引起的扫描光束的非线性。
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8.发明授权Apparatus for transducing infrared images into visible images utilizing a liquid light control layer 失效将红外图像转换成利用液体光控制层的可见图像的装置
公开(公告)号：US3603794A
公开(公告)日：1971-09-07
申请号：US3603794D
申请日：1970-07-10
申请人： CIBA LTD
发明人： MAST FRED
CPC分类号： G02B27/50
摘要： Apparatus for making incoming infrared rays visible includes an infrared optical system which serves to focus the rays through an optical grating onto the surface of a deformable liquid film deposited on a plane face of a transparent prism, the prism being so disposed in the path of a Schlieren-optical system that a beam of visible light produced by a source enters the liquid film from the baCk, is totally internally reflected at its surface adjacent the grating onto a concave mirrored surface of the prism which returns the beam to the liquid where it is again totally internally reflected by the liquid surface and then imaged on the bar-and-slot system of the schlieren-optics. In the absence of incoming infrared rays, the surface of the liquid film remains undeformed and the beam of visible light is turned back into its source. Upon deformation of the liquid surface by incoming infrared rays, visible light returning from the prism passes through the slots of the bar-and-slot system to establish an observable image of the deformation.
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9.发明授权Apparatus for transducing infra-red images into visible images utilizing a liquid light control layer 失效使用液体光控制层将红外图像转换成可见图像的装置
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公开(公告)号：US2805599A
公开(公告)日：1957-09-10
申请号：US42206754
申请日：1954-04-09
申请人： SZMUL PAJES WOLF
发明人： SZMUL PAJES WOLF
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