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公开(公告)号：US11678801B2
公开(公告)日：2023-06-20
申请号：US16838875
申请日：2020-04-02
CPC分类号： A61B5/0066 , A61B5/0042 , A61B5/0051 , A61B5/0055 , A61B5/0068 , A61B5/441 , G02B6/4215 , G02B21/006 , G02B21/0028 , G02B21/0036 , G02B21/0076 , G02B21/365 , G06T7/0012 , A61B5/7257 , A61B2562/0242 , G06T2207/30016 , G06T2207/30041 , G06T2207/30088
摘要： a) A Gabor domain optical coherence microscopy (GD-OCM) system providing high resolution of structural and motion imaging of objects such as tissues is combined with the use of reverberant shear wave fields (RevSW) or longitudinal shear waves (LSW) and two novel mechanical excitation sources: a coaxial coverslip excitation (CCE) and a multiple pronged excitation (MPE) sources providing structured and controlled mechanical excitation in tissues and leading to accurate derivation of elastographic properties. Alternatively, general optical computed tomography (OCT) is combined with RevSW or LWC in the object to derive elastographic properties. The embodiments include (a) GD-OCM with RevSW; (b) GD-OCM with LSW; (c) General OCT with RevSW; and General OCT with LSW.
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公开(公告)号：US20210103072A1
公开(公告)日：2021-04-08
申请号：US17018284
申请日：2020-09-11
发明人： Daniel Nikolov , Jannick P. Rolland , Nick Vamivakas , Fei Cheng , Aaron Bauer
摘要： A see-through reflective optical device includes: a reflective metasurface configured for a targeted design optical wavelength, wherein the reflective metasurface comprises a sub-wavelength periodic arrangement of meta-atoms formed by patterned isolated gap surface plasmon (GSP) resonators, where the patterned isolated GSP resonators comprise a patterned optically thin metal layer for the design wavelength, an optically thick metal layer for the design wavelength, and an insulator layer between the patterned optically thin metal layer and the optically thick metal layer; and an array of apertures of random positions and diameters greater than the targeted design wavelength formed through the reflective metasurface providing a designed percentage of light transparency through the reflective metasurface. The reflective metasurface of the see-through reflective optical device may comprise, e.g., a reflective diffraction grating metasurface, and may be used as a combiner element surface in a near eye display assembly.
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公开(公告)号：US20180136039A1
公开(公告)日：2018-05-17
申请号：US15579201
申请日：2016-06-07
发明人： Jannick P. Rolland , Jacob Reimers
CPC分类号： G01J3/021 , G01J3/0208 , G01J3/18 , G01J3/2823
摘要： Expanded performance opportunities for imaging spectrometers are described using φ-polynomial freeform surfaces in reflective and diffractive optics. The imaging spectrometers are generally of a type that include an entrance aperture for admitting radiation over a range of wavelengths, a detector array, a primary reflective optic with optical power, a secondary reflective diffractive optic, and a tertiary reflective optic with optical power for collectively imaging the entrance aperture onto the detector array through a range of dispersed positions. One or more of the primary reflective optic, the secondary reflective diffractive optic, and the tertiary reflective optic can include a φ-polynomial optical surface with no axis of symmetry and represented by a function that depends on both a radial component and an azimuthal
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公开(公告)号：US20210307611A1
公开(公告)日：2021-10-07
申请号：US16838875
申请日：2020-04-02
摘要： a) A Gabor domain optical coherence microscopy (GD-OCM) system providing high resolution of structural and motion imaging of objects such as tissues is combined with the use of reverberant shear wave fields (RevSW) or longitudinal shear waves (LSW) and two novel mechanical excitation sources: a coaxial coverslip excitation (CCE) and a multiple pronged excitation (MPE) sources providing structured and controlled mechanical excitation in tissues and leading to accurate derivation of elastographic properties. Alternatively, general optical computed tomography (OCT) is combined with RevSW or LWC in the object to derive elastographic properties. The embodiments include (a) GD-OCM with RevSW; (b) GD-OCM with LSW; (c) General OCT with RevSW; and General OCT with LSW.
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公开(公告)号：US09615735B2
公开(公告)日：2017-04-11
申请号：US14548067
申请日：2014-11-19
CPC分类号： A61B3/101 , A61B3/0025 , A61B3/102 , A61B3/113
摘要： Systems and methods for determining thickness of lipid and aqueous layers of a tear film in which a spectrum array is generated from optical coherence tomography and input into a statistical estimator, which determines the thickness of the lipid and/or aqueous layers at a nanometer resolution based on the inputted spectrum and other information, such as information about a laser intensity noise, Poisson noise, and dark noise associated with the OCT.
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公开(公告)号：US20210063683A1
公开(公告)日：2021-03-04
申请号：US17006336
申请日：2020-08-28
发明人： Daniel Nikolov , Nick Vamivakas , Fei Cheng , Aaron Bauer , Jannick P. Rolland
摘要： A mechanically tunable reflective metamirror optical device for a targeted design optical wavelength includes a dynamically deformable substrate and a sub-wavelength periodic arrangement of patterned isolated gap surface plasmon (GSP) resonators positioned in or on the dynamically deformable substrate. The patterned isolated GSP resonators are movable relative to each other and comprise a patterned optically thin metal layer for the design wavelength, a patterned optically thick metal layer for the design wavelength, and a patterned insulator layer between the patterned optically thin and optically thick metal layers.
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公开(公告)号：US20160091723A1
公开(公告)日：2016-03-31
申请号：US14891208
申请日：2014-05-09
发明人： Jannick P. Rolland , Aaron Bauer
CPC分类号： G02B27/0172 , G02B5/23 , G02B17/0816 , G02B27/0012 , G02B27/0176 , G02B2027/011 , G02B2027/013 , G02B2027/015 , G02B2027/0178
摘要： A see-through optical display apparatus includes an image generating component, a tilted primary mirror having a non-flat, freeform, front optical surface, and a tilted secondary mirror having a non-flat, freeform, front optical surface, wherein the apparatus has an external pupil. A method for designing/making a see-through optical display apparatus for displaying an image generated by or on an image generating component of the apparatus.
摘要翻译： 透视光学显示装置包括图像产生部件，具有非平坦，自由形状的前光学表面的倾斜主镜和具有非平坦，自由形式的前光学表面的倾斜副镜，其中该装置具有 外在的学生 一种用于设计/制造用于显示由装置的图像生成部件生成的图像的直通式光学显示装置的方法。
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公开(公告)号：US11624912B2
公开(公告)日：2023-04-11
申请号：US16430068
申请日：2019-06-03
发明人： Jannick P. Rolland , Aaron Bauer , Nick Vamivakas , Fei Cheng , Daniel Nikolov
IPC分类号： G02B27/01
摘要： A near eye display assembly includes (a) frame; (b) a combiner operably connected to the frame as a first reflective surface positionable in front of an eye of a user of the display assembly; (c) a secondary mirror operably connected to the frame as a second reflective surface positionable proximate a side of the nose adjacent to the eye of a user of the display assembly; (d) an image source operably connected to the frame and optically coupled to the secondary mirror along an optical path; and (e) an optical fold element between the image source and the secondary mirror in the optical path, and positionable proximate the temple adjacent to the eye of a user of the display assembly; wherein an intermediate image is formed in the optical path between the image source and the secondary mirror, wherein the combiner and the secondary mirror are in an off-axis folded geometry which directs images from the optical fold element to an eyebox of the near eye display assembly, and at least one of the combiner and the secondary mirror include a freeform surface, wherein the freeform component corrects optical aberrations induced by a tilting and decentering of the first reflective surface and the second reflective surface, and wherein at least the combiner includes a nanostructured meta-surface which further provides wavefront control of an image from the image source to be directed to the eyebox and enables the combiner to be positioned at a tilt angle so that unobscured images are conveyable between the optical fold element and the secondary mirror while providing an FOV of at least 30 degrees and an eyebox width of at least 5 mm.
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公开(公告)号：US20190254516A1
公开(公告)日：2019-08-22
申请号：US16398611
申请日：2019-04-30
发明人： Jinxin Huang , Jannick P. Rolland
摘要： Systems and methods for assessing multi-layer structures in which a spectrum array is generated from low coherence interferometry and input into a statistical estimator, which determines the thickness and layer number based on the inputted spectrum and other information, including information about a source intensity noise, Poisson noise, and dark noise associated with the low coherence interferometry.
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公开(公告)号：US20170188815A1
公开(公告)日：2017-07-06
申请号：US15461893
申请日：2017-03-17
CPC分类号： A61B3/101 , A61B3/0025 , A61B3/102 , A61B3/113
摘要： Systems and methods for determining thickness of lipid and aqueous layers of a tear film in which a spectrum array is generated from optical coherence tomography and input into a statistical estimator, which determines the thickness of the lipid and/or aqueous layers at a nanometer resolution based on the inputted spectrum and other information, such as information about a laser intensity noise, Poisson noise, and dark noise associated with the OCT.
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