-
公开(公告)号：US12111421B2
公开(公告)日：2024-10-08
申请号：US17549914
申请日：2021-12-14
Applicant: APPLE INC.
Inventor： Yakov G. Soskind , Alexander Shpunt , Graham C. Townsend
Abstract: An optical transmission device includes a waveguide including a transparent medium having mutually-parallel first and second surfaces arranged so that light propagates within the waveguide by internal reflection between the first and second surfaces. At least one light source is configured to inject coherent light into the waveguide. A first array of diffractive structures is applied to the waveguide and configured to couple respective beams of the coherent light out through the first surface of the waveguide. The device includes a second array of tunable optical phase modulators, which are overlaid on respective ones of the diffractive structures in the first array and are configured to apply different respective phase shifts to the respective beams, thereby modulating a far-field light pattern formed by interference between the beams.
-
公开(公告)号：US20220299605A1
公开(公告)日：2022-09-22
申请号：US17549914
申请日：2021-12-14
Applicant: APPLE INC.
Inventor： Yakov G. Soskind , Alexander Shpunt , Graham C. Townsend
Abstract: An optical transmission device includes a waveguide including a transparent medium having mutually-parallel first and second surfaces arranged so that light propagates within the waveguide by internal reflection between the first and second surfaces. At least one light source is configured to inject coherent light into the waveguide. A first array of diffractive structures is applied to the waveguide and configured to couple respective beams of the coherent light out through the first surface of the waveguide. The device includes a second array of tunable optical phase modulators, which are overlaid on respective ones of the diffractive structures in the first array and are configured to apply different respective phase shifts to the respective beams, thereby modulating a far-field light pattern formed by interference between the beams.
-
公开(公告)号：US11385463B1
公开(公告)日：2022-07-12
申请号：US16932880
申请日：2020-07-20
Applicant: Apple Inc.
Inventor： Arman Hajati , Alexander Shpunt
Abstract: An optical system includes a transparent display, which has a first side configured to be positioned in proximity to an eye of an observer and a second side opposite the first side, and which is configured to project an image into the eye. An image generator is configured to generate a sequence of images during respective display intervals, which are interleaved with blanking intervals, and to transmit the images to the transparent display for projection into the eye. A shutter is positioned on the second side of the display and having a first state in which the shutter blocks optical radiation and a second state in which the shutter transmits optical radiation. A controller drives the image generator and the shutter so that the shutter operates in the first state during the display intervals and in the second state during the blanking intervals.
-
公开(公告)号：US20220155588A1
公开(公告)日：2022-05-19
申请号：US17665241
申请日：2022-02-04
Applicant: Apple Inc.
Inventor： Richard J. Topliss , Alexander Shpunt
Abstract: Methods and systems for a virtual and/or augmented reality device may include a light emitting device that includes one or more light emitting elements configured to generate collimated light beams. A scanning mirror may include one or more microelectromechanical systems (MEMS) mirrors. Each MEMS mirror of the scanning mirror may be configured to dynamically tilt in at least one of two orthogonal degrees of freedom to raster scan the light beams over multiple angles corresponding to a field of view of an image. A curved mirror may include curves in two orthogonal directions configured to reflect the collimated light beams from the scanning mirror into a subject's eye in proximity to the curved mirror to form a virtual image. The curved mirror may allow external light to pass through, thus allowing the virtual image to be combined with a real image to provide an augmented reality.
-
公开(公告)号：US11310479B2
公开(公告)日：2022-04-19
申请号：US17000318
申请日：2020-08-23
Applicant: Apple Inc.
Inventor： Alexander Shpunt , Zafrir Mor
IPC: H04N13/254 , H04N13/271 , G06F3/00 , G06F3/01 , G06T7/521
Abstract: A method for depth mapping includes projecting a pattern of optical radiation into a volume of interest containing an object while varying an aspect of the pattern over the volume of interest. The optical radiation reflected from the object responsively to the pattern is sensed, and a depth map of the object is generated based on the sensed optical radiation.
-
Patent Agency Ranking
公开(公告)号：US11215829B2
公开(公告)日：2022-01-04
申请号：US16359924
申请日：2019-03-20
Applicant: Apple Inc.
Inventor： Richard J. Topliss , Paul J. Gelsinger-Austin , Thomas M. Gregory , Richard H. Tsai , Alexander Shpunt
Abstract: An augmented reality headset may include a reflective holographic combiner to direct light from a light engine into a user's eye while also transmitting light from the environment. The combiner and engine may be arranged to project light fields with different fields of view and resolution to match the visual acuity of the eye. The combiner may be recorded with a series of point to point holograms; one projection point interacts with multiple holograms to project light onto multiple eye box points. The engine may include a laser diode array, a distribution waveguide, scanning mirrors, and layered waveguides that perform pupil expansion and that emit wide beams of light through foveal projection points and narrower beams of light through peripheral projection points. The light engine may include focusing elements to focus the beams such that, once reflected by the holographic combiner, the light is substantially collimated.
-
公开(公告)号：US20210293533A1
公开(公告)日：2021-09-23
申请号：US17340108
申请日：2021-06-07
Applicant: APPLE INC.
Inventor： Benny Pesach , Zafrir Mor , Shimon Yalov , Alexander Shpunt
Abstract: Optical apparatus includes a beam source, which is configured to generate an optical beam having a pattern imposed thereon. A projection lens is configured to receive and project the optical beam so as to cast the pattern onto a first area in space having a first angular extent. A field multiplier is interposed between the projection lens and the first area and is configured to expand the projected optical beam so as to cast the pattern onto a second area in space having a second angular extent that is at least 50% greater than the first angular extent.
-
公开(公告)号：US11070785B2
公开(公告)日：2021-07-20
申请号：US16894641
申请日：2020-06-05
Applicant: Apple Inc.
Inventor： Alexander Shpunt
IPC: H04N13/144 , G02B3/00 , G02B26/10 , H04N13/344 , H04N7/18 , G02B27/30 , G06F3/01 , G02B30/35
Abstract: A direct retinal projector system that provides dynamic focusing for virtual reality (VR) and/or augmented reality (AR) is described. A direct retinal projector system scans images, pixel by pixel, directly onto the subject's retinas. This allows individual pixels to be optically affected dynamically as the images are scanned to the subject's retinas. Dynamic focusing components and techniques are described that may be used in a direct retinal projector system to dynamically and correctly focus each pixel in VR images as the images are being scanned to a subject's eyes. This allows objects, surfaces, etc. that are intended to appear at different distances in a scene to be projected to the subject's eyes at the correct depths.
-
公开(公告)号：US20200371585A1
公开(公告)日：2020-11-26
申请号：US16989904
申请日：2020-08-11
Applicant: Apple Inc.
Inventor： Alexander Shpunt , Raviv Erlich , Zafrir Mor
IPC: G06F3/01 , G01J1/04 , H01S3/00 , B23P19/04 , G01S17/10 , G01S17/42 , G01S17/89 , G01S7/481 , G01S7/486 , H01S5/022 , H01S5/40 , H01S5/42 , G06T15/00 , G01J1/44 , G02B27/09 , G01S7/4865
Abstract: A beam generating device includes a semiconductor substrate, having an optical passband. A first array of vertical-cavity surface-emitting lasers (VCSELs) is formed on a first face of the semiconductor substrate and are configured to emit respective laser beams through the substrate at a wavelength within the passband. A second array of microlenses is formed on a second face of the semiconductor substrate in respective alignment with the VCSELs so as to transmit the laser beams generated by the VCSELs.
-
公开(公告)号：US10768411B2
公开(公告)日：2020-09-08
申请号：US16425997
申请日：2019-05-30
Applicant: APPLE INC.
Inventor： Raviv Erlich , Alexander Shpunt , Yuval Gerson
Abstract: A scanning device includes a base containing one or more rotational bearings disposed along a gimbal axis. A gimbal includes a shaft that fits into the rotational bearings so that the gimbal rotates about the gimbal axis relative to the base. A mirror assembly includes a semiconductor substrate, which has been etched and coated to define a support, which is fixed to the gimbal, at least one mirror, contained within the support, and a connecting member connecting the at least one mirror to the support and defining at least one mirror axis, about which the at least one mirror rotates relative to the support.
-
-
-
-
-
-
-
-
-
Search Results
139
records
(took 0.023 seconds)
