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公开(公告)号：US20250004287A1
公开(公告)日：2025-01-02
申请号：US18637386
申请日：2024-04-16
Applicant: Panavision International, L.P.
Inventor： Daniel Keith Sasaki , Brian Grant Mills , Rick Takeshi Ishioka
Abstract: Apparatuses, systems, and methods for producing non-rotationally symmetric optical aberrations. Such aberrations may be created by a removable attachment that may be attached to another lens, such as a spherical lens. Aberrations that appear to reproduce an anamorphic effect may be produced, yet the underlying camera system may remain a spherical camera system, and the capture mode may remain non-anamorphic.
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公开(公告)号：US11982797B2
公开(公告)日：2024-05-14
申请号：US17607757
申请日：2020-04-17
Applicant: Teledyne FLIR Commercial Systems, Inc.
Inventor： Michael D. Walters , Alan D. Kathman , David Ovrutsky
CPC classification number: G02B13/008 , G02B13/08 , G02B13/22 , H04N5/33 , H04N23/55
Abstract: Aspect ratio modifying imaging systems and methods are provided. In one example, an infrared imaging device includes at least one lens element configured to transmit electromagnetic radiation associated with a portion of a scene. The portion has a first aspect ratio. The electromagnetic radiation includes mid-wave and/or long-wave infrared light. The at least one lens element has a freeform surface having no translational symmetry and no rotational symmetry. The infrared imaging device further includes a detector array configured to receive image data associated with the electromagnetic radiation from the at least one lens element and generate, based on the image data, an image. The image data has a second aspect ratio different from the first aspect ratio. Each of the first and second aspect ratios is a ratio of a size along a first direction and a size along a second direction orthogonal to the first direction.
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3.发明授权公开(公告)号：US11900591B2
公开(公告)日：2024-02-13
申请号：US17720763
申请日：2022-04-14
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takayuki Uozumi
CPC classification number: G06T7/001 , G01P3/38 , G02B13/22 , G06T7/60 , G06V10/751 , H04N23/56 , G06T2207/30108
Abstract: A displacement meter for suppressing errors occurring in sub-pixel estimation, comprising: alight source that illuminates an object; an image pickup unit for receiving diffused-reflected light from the object; and a calculation unit for calculating the a displacement amount of the object by using sub-pixel estimation and the cross-correlation function between reference image data and measurement image data, wherein an image acquired during a predetermined timing from the imaging unit serves as the reference image data and an image acquired during the next timing serves as the measurement image data, generates a correction displacement amount by subtracting a correction value from the displacement amount, sets the most recent measurement image data as the reference image data and sets a predetermined initial value as the correction value if the displacement amount meets a predetermined condition, and else sets the displacement amount obtained most recently as the correction value.
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公开(公告)号：US20230288664A1
公开(公告)日：2023-09-14
申请号：US18319365
申请日：2023-05-17
Applicant: Apple Inc.
Inventor： Richard L. Baer , Andrew David Fernandez , Santiago Alban
Abstract: Various embodiments disclosed herein include techniques for maintaining multiple cameras in focus on same objects and/or at same distances. In some examples, a subordinate camera may be configured to focus based on the focus of a primary camera. For instance, a focus relationship between the primary camera and the subordinate camera may be determined. The focus relationship may characterize the trajectory of the lens position of the subordinate camera with respect to the lens position of the primary camera. In various examples, the focus relationship may be updated.
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公开(公告)号：US11733650B2
公开(公告)日：2023-08-22
申请号：US16906369
申请日：2020-06-19
Applicant: The Johns Hopkins University
Inventor： David W. Blodgett , Carissa L. Rodriguez , Austen T. Lefebvre , Eyal Bar-Kochba , Nicole E. Steiner
CPC classification number: G03H1/2205 , G02B13/22 , G02B27/1006 , G03H1/0443 , G03H2001/0463 , G03H2001/2207 , G03H2222/20 , G03H2222/45 , G03H2226/02
Abstract: A holographic imaging system may include an optical source configured to output a source beam and a splitter configured to split the source beam into a reference beam and an object beam that may be incident on a target to form a scattered object beam. The system may also include a combiner configured to combine the filtered scattered object beam with the reference beam to form an interference beam, an imaging array configured to receive the interference beam and generate frames of raw holographic data based on measurements of the interference beam over time, and an image data processor. The image data processor may be configured to receive the frames of raw holographic data from the imaging array, remove data components within the frames that are associated with the particle motion having a motion frequency that is less than a movement frequency threshold to form conditioned raw holographic data, and generate an image based on the conditioned raw holographic data.
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Patent Agency Ranking
公开(公告)号：US20230185064A1
公开(公告)日：2023-06-15
申请号：US18076299
申请日：2022-12-06
Applicant: Fathom Radiant, PBC
Inventor： Kaia Williams , Benjamin Braker , Omer Tzang , Robert T. Weverka , Keith Behrman
CPC classification number: G02B13/22 , G02B5/1876 , H01S5/423 , H01S5/4012 , H04B10/506 , G02B15/1421
Abstract: A compact bi-telecentric device includes refractive lenses and takes in light from a grid of emitters at the object plane and images them to a grid of receivers. It provides the capacity to combine multiple wavelengths of emitters at the object plane into a single receiver. The device is quite compact, less than 25 mm in length from object to image, and having a maximum diameter for any element of less than 4 mm. The device includes four optical lens elements, three of which have a positive focal length and one of which has a negative focal length. The device includes at least one diffractive optical element. The lens elements are separated into two distinct groups which each have positive optical power, separated by an aperture stop which may or may not be enabled by a physical surface. A diffractive element enables wavelength division multiplexing and compensates for distortion from the bi-telecentric device.
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公开(公告)号：US11656458B2
公开(公告)日：2023-05-23
申请号：US16934536
申请日：2020-07-21
Applicant: Fusao Ishii , NTT DOCOMO, INC.
Inventor： Fusao Ishii , Mikiko Nakanishi , Kazuoki Ichikawa , Mikio Iwamura
CPC classification number: G02B27/0101 , G02B5/09 , G02B6/001 , G02B6/0006 , G02B6/0028 , G02B6/0075 , G02B13/22 , G02B2027/0123
Abstract: A projection display having an optical light guide for a see-though display system using holographic optical element or diffractive optical element as in-coupling optics and combined with Fresnel mirrors as out-coupling optics is disclosed. A display using this light guide enables a wide angle (e.g., over 90 degrees field of view), high resolution, and a large eye-box with a compact size.
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公开(公告)号：US20230057470A1
公开(公告)日：2023-02-23
申请号：US17820474
申请日：2022-08-17
Applicant: Onto Innovation Inc.
Inventor： John A. Tejada , Ju Jin , Jian Ding
Abstract: A multichannel tunable lens system may include a review channel with a fluidic focusing device, which can adjust the focus of the channel rapidly to mitigate environmental vibrations. The review channel may generate high resolution images with reduced blur caused by vibrations or air turbulence while increasing the operating speed of the system. The review channel may include a telescope objective and eyepiece with telecentricity to generate a real image of the pupil in the fluidic focusing device. The system may also include an inspection channel to generate lower resolution images in parallel and a focus channel to determine contour information.
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公开(公告)号：US20230029274A1
公开(公告)日：2023-01-26
申请号：US17736281
申请日：2022-05-04
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takayuki Uozumi , Kazuyuki Kuratomi
Abstract: A displacement meter that measures displacement of an object includes a calculation circuit which calculates a displacement amount of the object using a cross-correlation function of plural images detected at different timings by a photoelectric conversion element array. The calculation circuit performs a Fourier transform on the images, applies a band-pass filter to the images having undergone the Fourier transform, and calculates the cross-correlation function using the images to which the band-pass filter has been applied. Assuming that a magnification of a light-receiving optical assembly is M, the number of pixels in the photoelectric conversion element array is N, and a pixel pitch is P (um), a low cut-off frequency HPF of the band-pass filter and a high cut-off frequency LPF of the band-pass filter satisfy: 3M/(N×P)≤HPF≤10M/(N×P), 40M/(N×P)≤LPF≤60M/(N×P).
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公开(公告)号：US20220404593A1
公开(公告)日：2022-12-22
申请号：US17841338
申请日：2022-06-15
Applicant: Teledyne FLIR Commercial Systems, Inc.
Inventor： Gu Hong Zhang , Gregory Fitzgerald
Abstract: An adjustable teleconverter is provided that may be selectively adjusted between a base lens configuration and one or more tele-lens configurations without adding, removing, or replacing lenses from an optical system. In one example, a system includes a front lens group configured to form a first image at an intermediate image plane in response to radiation from a scene. The system also includes a teleconverter configured to project the first image to form a second image at a final image plane. The teleconverter comprises a relay lens group configured to be selectively positioned between the intermediate image plane and the final image plane to adjust a magnification of the second image. Additional methods, devices, and systems are also provided.
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