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    INFRARED ILLUMINATOR AND RELATED EYE TRACKING APPARATUS AND METHOD
    1.
    发明申请
    INFRARED ILLUMINATOR AND RELATED EYE TRACKING APPARATUS AND METHOD 审中-公开

    公开(公告)号：US20200170504A1

    公开(公告)日：2020-06-04

    申请号：US16699263

    申请日：2019-11-29

    Applicant: NORTH INC.

    Inventor： Douglas Raymond Dykaar

    IPC: A61B3/113 ,  G06F3/01 ,  G02B27/01

    Abstract: An apparatus to illuminate a target includes a lens having a lens side to be positioned in opposing relation to the target. The apparatus includes a lightguide that circumscribes at least a portion of the periphery of the lens. The lightguide has an input end to receive light and a length along which the receive light propagates. The apparatus includes outcoupling elements that are spaced out along the length of the lightguide. The outcoupling elements couple light out of the lightguide at respective positions along the length of the lightguide. The outcoupling elements are oriented to direct the outcoupled light towards the target when the lens side is positioned in opposing relation to the target. An eye tracking apparatus including the illumination apparatus and a method of eye tracking are disclosed.

    FREE SPACE MULTIPLE LASER DIODE MODULES
    2.
    发明申请
    FREE SPACE MULTIPLE LASER DIODE MODULES 审中-公开

    公开(公告)号：US20190121136A1

    公开(公告)日：2019-04-25

    申请号：US16168699

    申请日：2018-10-23

    Applicant: NORTH INC.

    Inventor： Jörg Pierer ,  Rony Jose James ,  Stefan Mohrdiek ,  Douglas Raymond Dykaar

    IPC: G02B27/01 ,  H04N9/31

    Abstract: Systems, devices, and methods for 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 sealed, encapsulated package. 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.

    METHODS AND SYSTEMS FOR ALIGNING A COMPONENT
    3.
    发明申请
    METHODS AND SYSTEMS FOR ALIGNING A COMPONENT 审中-公开

    公开(公告)号：US20200288581A1

    公开(公告)日：2020-09-10

    申请号：US16782230

    申请日：2020-02-05

    Applicant: North Inc.

    Inventor： Douglas Raymond Dykaar

    IPC: H05K3/46 ,  H05K3/00

    Abstract: There is provided a method which includes placing a component on a substrate and extending an alignment member through an opening in the substrate. Once the alignment member is extended through the opening, the component is moved to abut against the alignment member to align the component relative to the substrate. After the component is aligned relative to the substrate, the component is secured to the substrate and the alignment member is retracted through the opening.

    ALIGNMENT METHODS FOR LASER DIODES
    4.
    发明申请
    ALIGNMENT METHODS FOR LASER DIODES 审中-公开

    公开(公告)号：US20190280458A1

    公开(公告)日：2019-09-12

    申请号：US16296779

    申请日：2019-03-08

    Applicant: North Inc.

    Inventor： Douglas Raymond Dykaar

    IPC: H01S5/022 ,  H04N9/31 ,  H01S5/00 ,  H01S5/40

    Abstract: The present disclosure generally relates to methods of assembling projectors, and more particularly, to methods of aligning laser diodes in laser projectors. Implementations of the present disclosure include positioning an alignment beam and a photodetector in an optical path of the projector. The alignment beam propagates from an alignment light source through a location where a laser diode is to be mounted. A laser diode is then initially positioned in the optical path with a laser cavity of the diode acting as a passive waveguide during the assembly process. The laser diode is then fixed in place at a position and, or, an orientation that corresponds to light from the alignment beam passing through a laser cavity of the diode to be aligned and registering at least a minimum threshold value of a measure at the photodetector.

    DIRECTLY WRITTEN WAVEGUIDE FOR COUPLING OF LASER TO PHOTONIC INTEGRATED CIRCUIT
    5.
    发明申请
    DIRECTLY WRITTEN WAVEGUIDE FOR COUPLING OF LASER TO PHOTONIC INTEGRATED CIRCUIT 审中-公开

    公开(公告)号：US20190219825A1

    公开(公告)日：2019-07-18

    申请号：US16231284

    申请日：2018-12-21

    Applicant: NORTH INC.

    Inventor： Jörg Pierer ,  Rony Jose James ,  Stefan Mohrdiek ,  Martin Joseph Kiik ,  Syed Moez Haque ,  Douglas Raymond Dykaar

    IPC: G02B27/01 ,  G02B6/42 ,  H01S5/022 ,  H01S5/40 ,  H01S5/026

    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 having grating or edge couplers thereon may be used to wavelength multiplex beams of light emitted by the plurality of laser diodes into a coaxially superimposed aggregate beam. A waveguide medium having one or more directly written waveguides may couple light from laser diodes to a photonic integrated circuit, and may optionally hermetically or partially hermetically seal the laser diodes, eliminating the need for a separate seal. Such optical engines may have 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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