公开(公告)号：US11454817B2

公开(公告)日：2022-09-27

申请号：US17143898

申请日：2021-01-07

Applicant: GOOGLE LLC

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

IPC: G02B27/01 ,  H04N9/31 ,  G02B26/10 ,  G02B27/12 ,  G02B27/14 ,  G02B27/10 ,  H01S5/02325 ,  G02B5/32 ,  G06F3/01 ,  H01S5/40 ,  H01S5/02253

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.

公开(公告)号：US10983356B2

公开(公告)日：2021-04-20

申请号：US16020007

申请日：2018-06-27

Applicant: GOOGLE LLC

Inventor： Stefan Alexander ,  Douglas Raymond Dykaar ,  John Otto Vieth ,  Timothy Paul Bodiya

IPC: G02B27/01 ,  F21V8/00 ,  G02B26/10

Abstract: Systems, devices, and methods for optical waveguides that are well-suited for use in wearable heads-up displays (WHUDs) are described. An optical waveguide includes a volume of optically transparent material, a first holographic optical element (HOE) and a second holographic optical element, wherein the first HOE and the second HOE are carried by the volume of optically transparent material, and the first HOE is positioned across a width of the volume of optically transparent material from the second HOE. Light enters the optical waveguide and is propagated down a length of the waveguide by reflection between the first HOE and the second HOE. Propagation of the light within the optical waveguide does not require total internal reflection. The optical waveguide may include means to in-couple the light into the waveguide and means to out-couple the light from the waveguide. WHUDs that employ such optical waveguides are also described.

公开(公告)号：US10976557B2

公开(公告)日：2021-04-13

申请号：US16020002

申请日：2018-06-27

Applicant: GOOGLE LLC

Inventor： Stefan Alexander ,  Douglas Raymond Dykaar ,  John Otto Vieth ,  Timothy Paul Bodiya

IPC: G02B27/01 ,  F21V8/00 ,  G02B26/10

Abstract: Systems, devices, and methods for optical waveguides that are well-suited for use in wearable heads-up displays (WHUDs) are described. An optical waveguide includes a volume of optically transparent material, a first holographic optical element (HOE) and a second holographic optical element, wherein the first HOE and the second HOE are carried by the volume of optically transparent material, and the first HOE is positioned across a width of the volume of optically transparent material from the second HOE. Light enters the optical waveguide and is propagated down a length of the waveguide by reflection between the first HOE and the second HOE. Propagation of the light within the optical waveguide does not require total internal reflection. The optical waveguide may include means to in-couple the light into the waveguide and means to out-couple the light from the waveguide. WHUDs that employ such optical waveguides are also described.

公开(公告)号：US11711898B2

公开(公告)日：2023-07-25

申请号：US16782230

申请日：2020-02-05

Applicant: GOOGLE LLC

Inventor： Douglas Raymond Dykaar

IPC: H05K3/46 ,  H05K3/00 ,  B23K3/08 ,  H05K13/04 ,  B23K101/42

CPC classification number: H05K3/4638 ,  H05K3/0008 ,  B23K3/087 ,  B23K2101/42 ,  H05K13/0465

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.

公开(公告)号：US20210157147A1

公开(公告)日：2021-05-27

申请号：US17143898

申请日：2021-01-07

Applicant: GOOGLE LLC

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

IPC: G02B27/01 ,  H04N9/31 ,  G02B26/10 ,  G02B27/12 ,  G02B27/14 ,  G02B27/10 ,  H01S5/02325 ,  G02B5/32 ,  G06F3/01 ,  H01S5/40

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.

公开(公告)号：US10901216B2

公开(公告)日：2021-01-26

申请号：US16168699

申请日：2018-10-23

Applicant: GOOGLE LLC

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

IPC: G02B27/01 ,  H04N9/31 ,  H01S5/022 ,  G02B26/10 ,  G02B27/12 ,  G02B27/14 ,  G02B27/10 ,  G02B5/32 ,  G06F3/01 ,  H01S5/40

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.

公开(公告)号：US11616340B2

公开(公告)日：2023-03-28

申请号：US16796294

申请日：2020-02-20

Applicant: GOOGLE LLC

Inventor： Douglas Raymond Dykaar

IPC: H01S5/0687 ,  H01S5/50 ,  H01S5/068 ,  H01S5/12

Abstract: There is provided a method of operating a laser. The method comprises receiving a target power and calculating an operating power of a lasing module of the laser. The operating power may be calculated based on the target power and a minimum lasing power of the lasing module. The method also comprises determining an operating current for the lasing module based on the operating power, and driving the lasing module at the operating current to produce an output light having the operating power. In addition, the method comprises providing the output light to an optical modulator of the laser, and operating the optical modulator to modulate the output light to have an output power corresponding to the target power.

公开(公告)号：US11515684B2

公开(公告)日：2022-11-29

申请号：US16796141

申请日：2020-02-20

Applicant: GOOGLE LLC

Inventor： Douglas Raymond Dykaar

IPC: H01S5/34 ,  H01S5/10 ,  H01S5/40 ,  H01S5/125 ,  H01S5/028 ,  H01S5/14 ,  H01S5/20

Abstract: There is provided a device to generate an output light. The device comprises a substrate, a quantum well structure (QWS) disposed on the substrate, and a waveguide disposed on the substrate and in contact with the QWS. The QWS has a first layer, a second layer, and a third layer. The second layer is disposed and quantum-confined between the first layer and the third layer. In addition, the second layer is to emit an input light when electrically biased. The input light has an optical field extending outside the QWS and into the waveguide, to optically couple the waveguide with the QWS. The waveguide is to provide an optical resonance cavity for the input light. Moreover, the waveguide has an optical outlet to transmit at least some of the input light out of the waveguide to generate the output light.

公开(公告)号：US11426070B2

公开(公告)日：2022-08-30

申请号：US16699263

申请日：2019-11-29

Applicant: GOOGLE LLC

Inventor： Douglas Raymond Dykaar

IPC: A61B3/14 ,  A61B3/10 ,  A61B3/00 ,  G03H1/00 ,  G02B27/14 ,  G03B21/26 ,  A61B3/113 ,  G02B27/01 ,  G06F3/01

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.

公开(公告)号：US11300788B2

公开(公告)日：2022-04-12

申请号：US16168694

申请日：2018-10-23

Applicant: GOOGLE LLC

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

IPC: G02B27/01 ,  H04N9/31 ,  G02B26/10 ,  G02B27/10 ,  H01S5/40 ,  H01S5/02253 ,  G02B27/12 ,  G02B27/14 ,  H01S5/02325 ,  G02B5/32 ,  G06F3/01

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.