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公开(公告)号：US20200096772A1
公开(公告)日：2020-03-26
申请号：US16576322
申请日：2019-09-19
Applicant: North Inc.
Inventor： Daniel Robert Adema , Timothy Paul Bodiya
Abstract: An optical combiner lens for a wearable heads-up display includes a first lens, a second lens, and a lightguide disposed between the first lens and the second lens to form a stack. A first medium gap is defined within the stack and between the first lens and the lightguide, and a second medium gap is defined within the stack and between the lightguide and the second lens. An in-coupler is positioned to receive light into the lightguide. An out-coupler is positioned to output light from the lightguide.
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公开(公告)号：US10598952B2
公开(公告)日：2020-03-24
申请号：US16235895
申请日：2018-12-28
Applicant: North Inc.
Inventor： Christophe Le Gros , Lucio Kilcher
Abstract: Assembly (1) comprising a laser source (3) and a component for reducing speckle (7) comprising a beam splitter (9) that reflects a first portion (11) of the laser beam and transmits a second portion (13) and a first and second reflecting means (15, 17), the first reflective means (15) receiving the second portion (13) of the laser beam and the second reflective means (17) directing said second portion (13) back to the beam splitter (9), wherein the second portion (13) of the laser beam can be directed from the first (15) to the the second reflective means (17), wherein the first (15), the second (17) reflective means and the means for beam splitting (9) define an optical path for the second portion (13) of the laser beam, the length of which being equal to, or greater than, the coherence length of the laser beam.
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公开(公告)号：US10598925B2
公开(公告)日：2020-03-24
申请号：US14890379
申请日：2013-05-10
Applicant: North Inc.
Inventor： Jonathan Masson , Lucio Kilcher
Abstract: A projection device According to the present invention there is provided a projection device (30,50,100) comprising, a light source (31,61) which can provide light beams (32a,b,c 62a,b,c), wherein the light beams (32a,b,c 62a,b,c) can be used to define one or more pixels of a virtual image (48); a MEMS micro mirror (34) which is arranged to receive the light beams (32a,b,c 62a,b,c) provided by the light source (31,61), and wherein the MEMS micro mirror (34) can oscillate about at least one oscillation axis (7,17) to scan the light beams (32a,b,c 62a,b,c); a reflective element (38), which comprises a plurality of convex reflective projections (39), and wherein the reflective element (38) is arranged so that light beams (32a,b,c 62a,b,c) reflected by the MEMS micro mirror (34) are incident on said convex reflective projections (39), so that the light beams (32a,b,c 62a,b,c) are reflected by the convex reflective projections (39); a beam combiner (45,81), wherein the beam combiner is arranged to receive the light beams (32a,b,c 62a,b,c) which are reflected by the convex reflective projections (39) wherein the beam combiner (45,81) is configured to at least partially reflect the light beams (32a,b,c 62a,b,c) which it receives so that the light beams (32a,b,c 62a,b,c) can form a virtual image (48) which is visible when viewed from within an eyebox (47). There is further provided a corresponding method of projecting a virtual image.
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公开(公告)号：US20200091740A1
公开(公告)日：2020-03-19
申请号：US16573483
申请日：2019-09-17
Applicant: North Inc.
Inventor： Philip Michael Isaacs , Kai Xu , David Vandervies
Abstract: A portable charger system provides two charger ports with different charging characteristics. Two devices having different charging characteristics may be coupled to the two charger ports to be charged simultaneously.
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公开(公告)号：US20200073613A1
公开(公告)日：2020-03-05
申请号：US16556777
申请日：2019-08-30
Applicant: North Inc.
Inventor： Kyle Glackin , Nairey Keshishian , Lisa Marie Zane , Walter J.S. Hermsen , Cheryl Eng , Bridget Cinquegrano
Abstract: Systems, devices, and methods for visual displays are described. Such visual displays may be used in a retail environment to provide interactive presentations to customers. The visual displays may include a display panel, a visual source, and a controller. The display panel may present images and/or video to a user, in which the images and/or video are generated by the visual source. The controller may determine the types of images and/or video to be presented based upon communications received from a user via a communication device or a user kiosk. The display panel may be a variable height and may be offset from the floor or a shelf by a variable distance. A plurality of display panels may be arranged on a display floor to provide retail experiences to customers and/or may be received by one or more docks placed in the display floor.
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Patent Agency Ranking
公开(公告)号：US10564418B2
公开(公告)日：2020-02-18
申请号：US16276037
申请日：2019-02-14
Applicant: North Inc.
Inventor： Eric Tremblay , Mickael Guillaumee , David Ziegler , Christophe Moser , Lucio Kilcher
Abstract: Disclosed herein are devices and methods to provide multiple eyeboxes from multiple input pupils. In particular, a projection system can direct light from multiple input pupils to a holographic optical element. The light of each of the input pupils having light beams of different wavelengths. The holographic optical element reflects at least part of the light of the multiple input pupils to form an array of exit pupils.
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公开(公告)号：US10553007B1
公开(公告)日：2020-02-04
申请号：US16167002
申请日：2018-10-22
Applicant: North Inc.
Inventor： Rachel Kreutzkamp , Ryan Alexander West , Brent Bisaillion , Steven M. Eggert
Abstract: Systems, devices, and methods that display visual symbols are described. A visual symbol has a color and a linewidth. Multiple instances of the symbol are concurrently and progressively drawn, one on top of the other, in the display area of a display device. Each respective instance has a respective intermediate color. The respective intermediate colors combine to produce the color of the symbol where the respective instances overlap in the display area. Each respective instance also has a respective linewidth and the respective linewidths converge to the linewidth of the symbol as each instance is progressively drawn. A backwards progression through the same sequence is employed to regressively undraw a symbol from the display area of the display device. Computer program products comprising processor-executable instructions for performing the methods are also described.
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公开(公告)号：US20200026080A1
公开(公告)日：2020-01-23
申请号：US16203278
申请日：2018-11-28
Applicant: North Inc.
Inventor： Jörg Pierer , Rony Jose James , Stefan Mohrdiek , Douglas R. Dykaar
Abstract: Systems, devices, and methods of manufacturing optical engines and laser projectors that are well-suited for use in wearable heads-up displays (WHUDs) are described. Generally, the optical engines of the present disclosure integrate a plurality of laser diodes (e.g., 3 laser diodes, 4 laser diodes) within a single, hermetically or partially hermetically sealed, encapsulated package. Photonic integrated circuits may be used to wavelength multiplex beams of light emitted by the plurality of laser diodes into a coaxially superimposed aggregate beam. Such optical engines may have various advantages over existing designs including, for example, smaller volumes, better manufacturability, faster modulation speed, etc. WHUDs that employ such optical engines and laser projectors are also described.
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公开(公告)号：US10540743B2
公开(公告)日：2020-01-21
申请号：US16290201
申请日：2019-03-01
Applicant: North Inc.
Inventor： Stanislaw Adaszewski , Patrick McGlew
Abstract: Techniques to pre-warp an image based on an image warping map comprising a number of cells where each cell corresponds to a polynomial approximation for a number of corresponding pixels to be warped are described. An image warping map can be generated by partitioning a per pixel warping map into cells and approximating the pixel movements of each cell with a polynomial function.
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20.发明授权公开(公告)号：US10534182B2
公开(公告)日：2020-01-14
申请号：US16126564
申请日：2018-09-10
Applicant: NORTH INC.
Inventor： Stefan Alexander , Jake Chapeskie , Lloyd Frederick Holland , Thomas Mahon
Abstract: Systems, devices, and methods that integrate eye tracking capability into scanning laser projector (“SLP”)-based wearable heads-up displays are described. An infrared laser diode is added to an RGB SLP and an infrared photodetector is aligned to detect reflections of the infrared light from features of the eye. A holographic optical element (“HOE”) may be used to combine visible light, infrared light, and environmental light into the user's “field of view.” The HOE may be heterogeneous and multiplexed to apply positive optical power to the visible light and zero or negative optical power to the infrared light.
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