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公开(公告)号：US11029459B2
公开(公告)日：2021-06-08
申请号：US15953597
申请日：2018-04-16
Applicant: Rambus Inc.
Inventor： Patrick R. Gill , David G. Stork
Abstract: Image-sensing devices include odd-symmetry gratings that cast interference patterns over a photodetector array. Grating features offer considerable insensitivity to the wavelength of incident light, and also to the manufactured distance between the grating and the photodetector array. Photographs and other image information can be extracted from interference patterns captured by the photodetector array. Images can be captured without a lens, and cameras can be made smaller than those that are reliant on lenses and ray-optical focusing.
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公开(公告)号：US10854652B2
公开(公告)日：2020-12-01
申请号：US15861373
申请日：2018-01-03
Applicant: Rambus Inc.
Inventor： Patrick R. Gill , David G. Stork
IPC: G02B27/44 , G02B27/46 , H01L27/146 , G02B5/18
Abstract: An array of diffraction-pattern generators employ phase anti-symmetric gratings to projects near-field spatial modulations onto a closely spaced array of photoelements. Each generator in the array of generators produces point-spread functions with spatial frequencies and orientations of interest. The generators are arranged in an irregular mosaic with little or no short-range repetition. Diverse generators are shaped and placed with some irregularity to reduce or eliminate spatially periodic replication of ambiguities to facilitate imaging of nearby scenes.
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公开(公告)号：US20190180424A1
公开(公告)日：2019-06-13
申请号：US16229309
申请日：2018-12-21
Applicant: Rambus Inc.
Inventor： Patrick R. Gill , David G. Stork , Patrick R. Johnstone
Abstract: An optical method of measuring motion employs a phase grating that produces a diffraction pattern responsive to light from an imaged scene. First and second images of the diffraction pattern are captured and compared to produce an image comparison. Apparent motion is then calculated from the image comparison.
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公开(公告)号：US10188289B2
公开(公告)日：2019-01-29
申请号：US15314404
申请日：2015-06-09
Applicant: Rambus Inc.
Inventor： Patrick R. Gill , David G. Stork
IPC: A61B3/14 , A61B3/02 , A61B3/113 , G02B5/18 , G02B27/42 , G06T3/40 , H04N5/33 , G06K9/00 , H04N5/225 , H04N7/18 , A61B3/15 , H04N5/213 , H04N5/232 , H04N9/04 , H04N9/097
Abstract: A sensing device with an odd-symmetry grating projects near-field spatial modulations onto an array of closely spaced pixels. Due to physical properties of the grating, the spatial modulations are in focus for a range of wavelengths and spacings. The spatial modulations are captured by the array, and photographs and other image information can be extracted from the resultant data. Pixels responsive to infrared light can be used to make thermal imaging devices and other types of thermal sensors. Some sensors are well adapted for tracking eye movements, and others for imaging barcodes and like binary images. In the latter case, the known binary property of the expected images can be used to simplify the process of extracting image data.
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公开(公告)号：US09876043B2
公开(公告)日：2018-01-23
申请号：US15356363
申请日：2016-11-18
Applicant: Rambus Inc.
Inventor： Patrick R. Gill , David G. Stork
IPC: H01L27/146 , G02B5/18
CPC classification number: H01L27/14625 , G02B5/1819 , G02B5/1842 , H01L27/1462 , H01L27/14623 , H01L27/14627 , H01L27/14629
Abstract: An array of diffraction-pattern generators employ phase anti-symmetric gratings to projects near-field spatial modulations onto a closely spaced array of photoelements. Each generator in the array of generators produces point-spread functions with spatial frequencies and orientations of interest. The generators are arranged in an irregular mosaic with little or no short-range repetition. Diverse generators are shaped and placed with some irregularity to reduce or eliminate spatially periodic replication of ambiguities to facilitate imaging of nearby scenes.
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Patent Agency Ranking
公开(公告)号：US20160363702A1
公开(公告)日：2016-12-15
申请号：US15244592
申请日：2016-08-23
Applicant: Rambus Inc.
Inventor： Patrick R. Gill , David G. Stork
CPC classification number: G02B5/1842 , G02B5/1871 , G02B27/0037 , G02B27/0068 , G02B27/0087 , H04N5/225 , H04N5/2254 , H04N5/23232 , H04N5/23235 , H04N5/23245 , H04N5/3696 , H04N9/045
Abstract: A sensing device with an odd-symmetry grating projects near-field spatial modulations onto a closely spaced photodetector array. Due to physical properties of the grating, the spatial modulations are in focus for a range of wavelengths and spacings. The spatial modulations are captured by the array, and photographs and other image information can be extracted from the resultant data. Used in conjunction with a converging optical element, versions of these gratings provide depth information about objects in an imaged scene. This depth information can be computationally extracted to obtain a depth map of the scene.
Abstract translation: 具有奇对称光栅的感测装置将近场空间调制投影到紧密间隔的光电检测器阵列上。 由于光栅的物理性质，空间调制在波长和间距范围内成为焦点。 空间调制由阵列捕获，照片和其他图像信息可从结果数据中提取出来。 与会聚光学元件一起使用，这些光栅的版本提供有关成像场景中物体的深度信息。 该深度信息可以被计算地提取以获得场景的深度图。
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公开(公告)号：US09470823B2
公开(公告)日：2016-10-18
申请号：US15047499
申请日：2016-02-18
Applicant: Rambus Inc.
Inventor： Patrick R. Gill , David G. Stork
CPC classification number: G02B5/1842 , G02B5/1871 , G02B27/0037 , G02B27/0068 , G02B27/0087 , H04N5/225 , H04N5/2254 , H04N5/23232 , H04N5/23235 , H04N5/23245 , H04N5/3696 , H04N9/045
Abstract: A sensing device with an odd-symmetry grating projects near-field spatial modulations onto a closely spaced photodetector array. Due to physical properties of the grating, the spatial modulations are in focus for a range of wavelengths and spacings. The spatial modulations are captured by the array, and photographs and other image information can be extracted from the resultant data. Used in conjunction with a converging optical element, versions of these gratings provide depth information about objects in an imaged scene. This depth information can be computationally extracted to obtain a depth map of the scene.
Abstract translation: 具有奇对称光栅的感测装置将近场空间调制投影到紧密间隔的光电检测器阵列上。 由于光栅的物理性质，空间调制在波长和间距范围内成为焦点。 空间调制由阵列捕获，照片和其他图像信息可从结果数据中提取出来。 与会聚光学元件一起使用，这些光栅的版本提供有关成像场景中物体的深度信息。 该深度信息可以被计算地提取以获得场景的深度图。
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公开(公告)号：US09442228B2
公开(公告)日：2016-09-13
申请号：US14825058
申请日：2015-08-12
Applicant: Rambus Inc.
Inventor： Patrick R. Gill , David G. Stork
CPC classification number: G02B5/1842 , G02B5/1871 , G02B27/0037 , G02B27/0068 , G02B27/0087 , H04N5/225 , H04N5/2254 , H04N5/23232 , H04N5/23235 , H04N5/23245 , H04N5/3696 , H04N9/045
Abstract: A sensing device with an odd-symmetry grating projects near-field spatial modulations onto a closely spaced photodetector array. Due to physical properties of the grating, the spatial modulations are in focus for a range of wavelengths and spacings. The spatial modulations are captured by the array, and photographs and other image information can be extracted from the resultant data. Used in conjunction with a converging optical element, versions of these gratings provide depth information about objects in an imaged scene. This depth information can be computationally extracted to obtain a depth map of the scene.
Abstract translation: 具有奇对称光栅的感测装置将近场空间调制投影到紧密间隔的光电检测器阵列上。 由于光栅的物理性质，空间调制在波长和间距范围内成为焦点。 空间调制由阵列捕获，照片和其他图像信息可从结果数据中提取出来。 与会聚光学元件一起使用，这些光栅的版本提供有关成像场景中物体的深度信息。 该深度信息可以被计算地提取以获得场景的深度图。
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公开(公告)号：US20160170103A1
公开(公告)日：2016-06-16
申请号：US15047499
申请日：2016-02-18
Applicant: Rambus Inc.
Inventor： Patrick R. Gill , David G. Stork
CPC classification number: G02B5/1842 , G02B5/1871 , G02B27/0037 , G02B27/0068 , G02B27/0087 , H04N5/225 , H04N5/2254 , H04N5/23232 , H04N5/23235 , H04N5/23245 , H04N5/3696 , H04N9/045
Abstract: A sensing device with an odd-symmetry grating projects near-field spatial modulations onto a closely spaced photodetector array. Due to physical properties of the grating, the spatial modulations are in focus for a range of wavelengths and spacings. The spatial modulations are captured by the array, and photographs and other image information can be extracted from the resultant data. Used in conjunction with a converging optical element, versions of these gratings provide depth information about objects in an imaged scene. This depth information can be computationally extracted to obtain a depth map of the scene.
Abstract translation: 具有奇对称光栅的感测装置将近场空间调制投影到紧密间隔的光电检测器阵列上。 由于光栅的物理性质，空间调制在波长和间距范围内成为焦点。 空间调制由阵列捕获，照片和其他图像信息可从结果数据中提取出来。 与会聚光学元件一起使用，这些光栅的版本提供有关成像场景中物体的深度信息。 该深度信息可以被计算地提取以获得场景的深度图。
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公开(公告)号：US11035989B2
公开(公告)日：2021-06-15
申请号：US15776386
申请日：2016-11-03
Applicant: Rambus Inc.
Inventor： Patrick R. Gill , David G. Stork , John Eric Linstadt
Abstract: An imaging system includes a phase grating overlying a two-dimensional array of pixels, which may be thermally sensitive pixels for use in infrared imaging. The phase grating comprises a two-dimensional array of identical subgratings that define a system of Cartesian coordinates. The subgrating and pixel arrays are sized and oriented such that the pixels are evenly distributed with respect to the row and column intersections of the subgratings. The location of each pixel thus maps to a unique location beneath a virtual archetypical subgrating. Portions of the phase grating extend beyond the edges of the pixels array to interference pattern in support of Fourier-domain imaging.
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