公开(公告)号：US20150061065A1

公开(公告)日：2015-03-05

申请号：US14462644

申请日：2014-08-19

Applicant: Rambus Inc.

Inventor： Patrick R. Gill ,  David Geoffrey Stork

IPC: H01L27/146

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.

Abstract translation: 衍射图形发生器阵列采用相位反对称光栅将近场空间调制投影到紧密间隔的光电元件阵列上。 发生器阵列中的每个发生器产生具有空间频率和感兴趣方向的点扩展函数。 发电机布置成不规则的马赛克，很少或没有短距离的重复。 不同的发电机的形状和放置有一些不规则，以减少或消除空间周期性的模糊性复制，以促进附近场景的成像。

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

IPC: G02B5/30 ,  G02B5/18 ,  G02B27/46 ,  H04N5/335 ,  H01L27/146 ,  G02B27/42 ,  H04N5/232

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.

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.

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

IPC: G06T5/10 ,  G06T7/246 ,  G02B27/42 ,  G02B5/18 ,  G02B27/46

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.

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.

公开(公告)号：US10161788B2

公开(公告)日：2018-12-25

申请号：US14677878

申请日：2015-04-02

Applicant: RAMBUS INC.

Inventor： David Geoffrey Stork ,  Evan Lawrence Erickson ,  Patrick R. Gill ,  James Tringali

IPC: H01J40/14 ,  G01J1/04 ,  H04N5/225 ,  G02B27/00 ,  G02B5/18 ,  G02B27/42 ,  H01L27/146

Abstract: A sensing device projects near-field spatial modulations onto a closely spaced photodetector array. Due to physical properties of the grating, the point-spread response distributes spatial modulations over a relatively large area on the array. The spatial modulations are captured by the array, and photographs and other image information can be extracted from the resultant data. An image-change detector incorporating such a sensing device uses very little power because only a small number of active pixels are required to cover a visual field.

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.

公开(公告)号：US20180020157A1

公开(公告)日：2018-01-18

申请号：US15547155

申请日：2016-02-05

Applicant: Rambus Inc.

Inventor： Patrick R. Gill

IPC: H04N5/232 ,  G02B27/42 ,  G06T5/10 ,  G02B5/18 ,  H04N5/357 ,  G06T5/00

CPC classification number: H04N5/23222 ,  G02B5/1814 ,  G02B5/1871 ,  G02B27/4205 ,  G06T5/002 ,  G06T5/003 ,  G06T5/10 ,  G06T2207/20048 ,  H04N5/357

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. Efficient extraction algorithms based on Fourier deconvolution introduce barrel distortion, which can be removed by resampling using correction functions. The sensing devices can be made to minimize distortion that results from efficient extraction algorithms based on Fourier deconvolution.

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

IPC: G02B5/18 ,  H04N5/225 ,  H04N5/369 ,  G02B27/00

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。

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

IPC: G02B5/18 ,  G02B27/00 ,  H04N5/225 ,  H04N5/232

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。