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公开(公告)号：US11178392B2
公开(公告)日：2021-11-16
申请号：US16537580
申请日：2019-08-11
申请人： Apple Inc.
发明人： Assaf Avraham , Refael Della Pergola , Roei Remez
IPC分类号： H01S5/022 , H04N17/00 , H01L27/146 , H04N5/217 , G02B5/04 , H01S5/00 , G02B5/08 , H01S5/0225
摘要： An opto-electronic device includes a semiconductor substrate having a planar surface. An emitter is formed on the substrate and configured to emit a beam of light away from the planar surface. A reflective layer is formed on the planar surface adjacent to the emitter. A transparent layer is formed over the planar surface and has a curved outer surface including a first segment positioned vertically over the emitter and configured to internally reflect the emitted beam of light toward the reflective layer, and a second segment positioned and configured to collimate and transmit the beam reflected from the reflective layer.
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公开(公告)号：US20190094531A1
公开(公告)日：2019-03-28
申请号：US15849696
申请日：2017-12-21
申请人： APPLE INC.
发明人： Noel Axelrod , Refael Della Pergola
CPC分类号： G02B26/128 , G01S7/4816 , G01S7/4817 , G01S17/42 , G02B19/0023 , G02B19/0076 , G02B21/006 , G02B26/124 , G02B27/0994 , G06K7/10564 , G06K7/10643
摘要： An optical device includes a light source, which is configured to emit a beam of light at a given wavelength, and at least one scanning mirror configured to scan the beam across a target scene. Light collection optics include a collection optic positioned to receive the light from the scene that is reflected from the at least one scanning mirror and to focus the collected light onto a focal plane, and a non-imaging optical element including a solid piece of a material that is transparent at the given wavelength, having a front surface positioned at the focal plane of the collection lens and a rear surface through which the guided light is emitted from the material in proximity to a sensor, so that the collected light is guided through the material and spread over the detection area of the sensor.
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3.发明公开公开(公告)号：US20240007606A1
公开(公告)日：2024-01-04
申请号：US17810098
申请日：2022-06-30
申请人： Apple Inc.
发明人： Boris Morgenstein , Assaf Avraham , David Pawlowski , Gidi Lasovski , Refael Della Pergola , Tom Levy , Yohai Zmora
IPC分类号： H04N13/254 , G06T5/00 , G06T7/521 , G01B11/25
CPC分类号： H04N13/254 , G06T5/006 , G06T7/521 , G01B11/2504
摘要： One disclosed embodiment includes techniques for temperature-dependent reference image correction in structured light projectors that may be used for generating three-dimensional (3D) scene depth maps. The techniques disclosed herein include receiving an indication of a temperature (e.g., an actual current operating temperature or a change in the current operating temperature relative to an established reference temperature) associated with one or more components of a projector and then determining, based on the temperature indication, an amount of adjustment needed to correct a reference pattern image based on an estimated effective focal length change of the projector. Next, a reference pattern image may be appropriately adjusted, e.g., based on the determined amount of effective focal length adjustment caused by the current operating temperature of the projector, to generate a corrected reference image, which may then be used to generate a more accurate 3D scene depth maps at the projector's current operating temperature.
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公开(公告)号：US20230073962A1
公开(公告)日：2023-03-09
申请号：US17885573
申请日：2022-08-11
申请人： Apple Inc.
摘要： Sensing apparatus includes a projector, which projects toward a target a pattern of spots extending over a predefined angular range about a projection axis. An imaging assembly includes an image sensor and objective optics, which form on the image sensor an image of the target along an imaging axis, which is offset transversely relative to the projection axis. A processor is configured to process signals output by the image sensor so as generate, while the target is within a first span of distances from the apparatus, a depth map of the target responsively to shifts of the spots in the image, and to estimate, while the target is within a second span of distances, nearer to the apparatus than the first span, a distance to the target from the apparatus by detecting in the image a part of the pattern located at an edge of the angular range.
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公开(公告)号：US12123589B1
公开(公告)日：2024-10-22
申请号：US18321025
申请日：2023-05-22
申请人： APPLE INC.
发明人： Yuval Tsur , Refael Della Pergola , Roei Remez , Assaf Avraham , Yazan Alnahhas
摘要： An optoelectronic apparatus includes a semiconductor substrate and an array of emitters disposed on the semiconductor substrate and configured to emit beams of optical radiation having respective chief rays. An optical diffuser is mounted over the semiconductor substrate and configured to diffuse the beams. Microlenses are disposed between the semiconductor substrate and the optical diffuser in respective alignment with the emitters and configured to steer the beams at different, respective angles, which are selected so that at least some of the chief rays cross one another before passing through the diffuser.
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公开(公告)号：US11856180B1
公开(公告)日：2023-12-26
申请号：US17810098
申请日：2022-06-30
申请人： Apple Inc.
发明人： Boris Morgenstein , Assaf Avraham , David Pawlowski , Gidi Lasovski , Refael Della Pergola , Tom Levy , Yohai Zmora
IPC分类号： H04N13/254 , G06T7/521 , G01B11/00 , G06T5/00 , G01B11/25
CPC分类号： H04N13/254 , G01B11/2504 , G06T5/006 , G06T7/521
摘要： One disclosed embodiment includes techniques for temperature-dependent reference image correction in structured light projectors that may be used for generating three-dimensional (3D) scene depth maps. The techniques disclosed herein include receiving an indication of a temperature (e.g., an actual current operating temperature or a change in the current operating temperature relative to an established reference temperature) associated with one or more components of a projector and then determining, based on the temperature indication, an amount of adjustment needed to correct a reference pattern image based on an estimated effective focal length change of the projector. Next, a reference pattern image may be appropriately adjusted, e.g., based on the determined amount of effective focal length adjustment caused by the current operating temperature of the projector, to generate a corrected reference image, which may then be used to generate a more accurate 3D scene depth maps at the projector's current operating temperature.
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公开(公告)号：US11079797B1
公开(公告)日：2021-08-03
申请号：US16874557
申请日：2020-05-14
申请人： Apple Inc.
发明人： Roei Remez , Shay Yosub , Hoon Sik Kim , Assaf Avraham , Omer Eden , Paul S. Drzaic , Rafi Ambar , Refael Della Pergola
摘要： An electronic device may have a display with an array of pixels for displaying images. The display may have a window region. During operation, a component such as an optical component may operate through the window region. The window region may overlap a movable portion of the display. The window region may be operated in open and closed states. In the closed state, the movable portion of the display overlaps the window region and pixels in the movable display portion emit light through the window region. In the open state, the movable portion of the display is moved away from the window region so that light for the optical component may pass through the window region. The optical component may be a camera or other component that receives light through the window region or may be an optical component that emits light through the window region.
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公开(公告)号：US20240319582A1
公开(公告)日：2024-09-26
申请号：US18600273
申请日：2024-03-08
申请人： Apple Inc.
发明人： Takeyoshi Saiga , Yoshikazu Shinohara , Alexander Feldman , Liangyu Qiu , Junkyo Suh , Yuhong Yao , Milan Maksimovic , Moshe Kriman , Dana Gal-Fuss , Refael Della Pergola , Maoz Ovadia , Aharon R. Barnea
摘要： An optical component includes a mask defining a light blocking portion and a light transmitting portion of the optical component. The light blocking portion is separated from the light transmitting portion by one or more mask edges, at least one of which is defined by an apodized pattern. The apodized pattern of the mask edge reduces diffraction and thus flare caused by the mask.
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公开(公告)号：US20240089569A1
公开(公告)日：2024-03-14
申请号：US18302822
申请日：2023-04-19
申请人： Apple Inc.
发明人： Roei Remez , Brian McCall , Milan Maksimovic , Maoz Ovadia , Arnaud Laflaquière , Gershon Rosenblum , Noah D. Bedard , Omer Korech , Emanuel Mordechai , Keith Lyon , Refael Della Pergola , Niv Gilboa
CPC分类号： H04N23/13 , G02B1/002 , G02B1/041 , G02B26/0808 , G02B27/0012 , G02B27/40
摘要： An image sensing device includes a detector assembly, which includes a matrix of optical sensing elements having a predefined pitch. Each optical sensing element includes an active area having a width that is less than 90% of the pitch. An array of optical apertures are respectively aligned with the optical sensing elements such that each optical aperture is positioned at a distance from a respective optical sensing element that is no less than twice the width of the active area. Objective optics are configured to focus light from a scene onto the detector assembly.
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公开(公告)号：US11480808B2
公开(公告)日：2022-10-25
申请号：US17067447
申请日：2020-10-09
申请人： Apple Inc.
发明人： Refael Della Pergola , Chandra Kakani , Roei Remez , Yuval Tsur
摘要： A compact folded projection system is described that includes a laser light source, a folded lens system comprising a lens stack including two or more refractive lenses and a light folding element (e.g., a prism), and a diffractive beam splitter that includes at least one diffractive surface. The light folding element provides a “folded” optical axis for the lens system to reduce the Z-height of the projection system, for example to within a range of 1.7 to 4 millimeters (e.g., 2 millimeters in some implementations). The laser light source emits light that is refracted by the lens stack to the folding element. The folding element redirects the light to the beam splitter which replicates the light into N×M duplications or tiles to thus generate a larger field of view (FOV) than the internal FOV of the lens system.
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