公开(公告)号：US11966057B2

公开(公告)日：2024-04-23

申请号：US17531117

申请日：2021-11-19

申请人： GOOGLE LLC

发明人： Daniel Adema

IPC分类号： G02B27/01 ,  G02B26/10 ,  H04N9/31

CPC分类号： G02B27/0172 ,  G02B26/105 ,  H04N9/3152 ,  H04N9/3161 ,  G02B2027/0178

摘要： Display systems, such as near eye display systems or wearable heads up displays, may include a laser projector having an optical switch assembly disposed an at input to an optical scanner of the laser projector. The optical switch assembly includes at least one optical switch, and a controller selectively modifies the orientation of each optical switch to selectively change an angle at which laser light is directed onto a scan mirror of the optical scanner. Changing this angle shifts the scan region over which the scan mirror scans the laser light and, relatedly, shifts a region of a field of view of the display. In some embodiments, the controller is configured to modify the optical switch orientation(s) to correct non-idealities in the angle of the laser light.

公开(公告)号：US20240087488A1

公开(公告)日：2024-03-14

申请号：US18462253

申请日：2023-09-06

申请人： Google LLC

发明人： Shreyas Potnis ,  Eliezer Glik ,  Daniel Adema

IPC分类号： G09G3/00

CPC分类号： G09G3/002 ,  G09G2320/0693 ,  G09G2340/0471 ,  G09G2340/12

摘要： Improved techniques include providing a coupling element on a nose bridge that can overlay left and right images output from respective outcouplers and send the overlay image to a sensor. Based on at least a portion of the overlay image, the sensor may cause the left, right, or both field of views to move until the left and right images are aligned.

公开(公告)号：US20230324715A1

公开(公告)日：2023-10-12

申请号：US18192904

申请日：2023-03-30

申请人： Google LLC

发明人： Daniel Adema

IPC分类号： G02C5/22

CPC分类号： G02C5/2209

摘要： Systems and methods for controlling an amount of torque transmitted from the temple arm portions to a front frame portion of a frame of a head mounted wearable device are provided. Hinge mechanisms that rotatably couple the temple arm portions to the front frame portion may include torque control devices that provide for torque control in response to rotation and/or deflection of the temple arm portions, to control an amount of torque that is transmitted to the front frame portion. A magnetic torque control device may include first and second arrays of magnets arranged within the hinge mechanism, and that are selectively engaged and disengaged to provide compliance in multiple axes. An elastomer torque control device may include an engagement pin that selectively engages and disengages recesses in an elastomer layer provided within the hinge mechanism to provide compliance in multiple axes.

公开(公告)号：US20230215304A1

公开(公告)日：2023-07-06

申请号：US17913043

申请日：2020-12-14

申请人： GOOGLE LLC

发明人： Stuart James Myron Nicholson ,  Timothy Paul Bodiya ,  Daniel Adema ,  Shreyas Potnis

IPC分类号： G09G3/00

CPC分类号： G09G3/002 ,  G09G2320/066 ,  G09G2320/0626 ,  G09G2320/043 ,  G09G2330/021 ,  G09G2330/045 ,  G09G2340/0464 ,  G09G2360/144

摘要： A display system varies a size of a field of view area of a display for augmented reality (AR) applications based on at least one of ambient light in the environment and content displayed at the display and varying a brightness level of the field of view area such that the brightness level within the field of view area is inversely proportional to the field of view area. Based on an amount of ambient light detected in the environment of the display system, the display system adjusts the size of the area of the field of view of the display in inverse proportion to the amount of detected ambient light. As the size of the field of view area decreases, the display system increases the brightness level of the display within the field of view such that the brightness level is approximately inversely proportional to the field of view area.

公开(公告)号：US20220350152A1

公开(公告)日：2022-11-03

申请号：US17774005

申请日：2021-02-03

申请人： GOOGLE LLC

发明人： Daniel Adema

IPC分类号： G02B27/01 ,  G02C5/14 ,  G02C11/00

摘要： There is provided a wearable heads-up display (WHUD) having a glasses frame, which may comprise a front frame and first and second temple arms each coupled to the front frame. At least a portion of the first temple arm may be foldable relative to the front frame at a first interface disposed at a first distance along the first temple arm away from the front frame. Similarly, at least a portion of the second temple arm may be foldable relative to the front frame at a second interface disposed at a second distance along the second temple arm away from the front frame. The first distance may be different than the second distance. The WHUD may also include a light engine and a display optic both mounted to the glasses frame, and used to form an image viewable by a user of the WHUD.

公开(公告)号：US20220197035A1

公开(公告)日：2022-06-23

申请号：US17552721

申请日：2021-12-16

申请人： GOOGLE LLC

发明人： Daniel Adema ,  Timothy Paul Bodiya ,  Shreyas Potnis

IPC分类号： G02B27/01 ,  F21V8/00

摘要： A head-mounted display (HMD) system including a lens element supported by a support structure, the lens element having a waveguide with an incoupler configured to receive light from an optical scanner of the HMD. The incoupler is configured with multiple features varying in at least one of height, spacing, angle, or density. The features may be separated into discrete zones along the incoupler such that at least one of height, spacing, angle, or density of the plurality of features is varied over the incoupler and constant within a given zone or the features may be varied continuously across the incoupler.

公开(公告)号：US20210215868A1

公开(公告)日：2021-07-15

申请号：US17145364

申请日：2021-01-10

申请人： GOOGLE LLC

发明人： Daniel Adema ,  Ian Andrews ,  Timothy Paul Bodiya ,  Shreyas Potnis

IPC分类号： F21V8/00

摘要： An optical element for implementation in a heads-up display or other near-eye display system includes a lightguide and an incoupler optically coupled to the lightguide. The incoupler receives a display beam incident upon the lightguide at a first incidence position. The incoupler directs a first portion of the display beam into the lightguide to form an incoupled beam and causes a second portion to remain non-incoupled relative to the lightguide to form a non-incoupled beam. The optical element further includes a reflector to receive the non-incoupled beam and to reflect the non-incoupled beam towards the incoupler to form a reflected beam incident upon the incoupler at a second incidence position. The incoupler direct a corresponding portion of the reflected beam into the lightguide to form a further incoupled beam.

公开(公告)号：US20240154379A1

公开(公告)日：2024-05-09

申请号：US18272629

申请日：2021-01-21

申请人： GOOGLE LLC

发明人： Daniel Adema ,  Timothy Paul Bodiya

IPC分类号： H01S3/02 ,  G02B27/01 ,  G02B27/42 ,  H01S3/1055

CPC分类号： H01S3/025 ,  G02B27/0172 ,  G02B27/4205 ,  H01S3/1055

摘要： Systems and methods related to optical engines and laser projectors usable in wearable heads-up displays are described. An optical engine may include laser diodes that are configured to output laser light beams and that are disposed in a fully or partially hermetically sealed, encapsulated package having an exit window. A holographic or surface-relief diffraction grating may be integrated with or disposed on a primary output surface of the exit window of an enclosure of the optical engine. The diffraction grating may be configured to redirect a portion of the laser light toward one or more photodetectors disposed at or across from one or more surfaces of the exit window that are not parallel with the primary output surface. The primary output surface of the exit window may be slanted to be non-orthogonal to the primary direction of propagation of the emitted laser light.

公开(公告)号：US20230228985A1

公开(公告)日：2023-07-20

申请号：US17578027

申请日：2022-01-18

申请人： GOOGLE LLC

发明人： Daniel Adema

IPC分类号： G02B26/08 ,  G02B27/01 ,  G02B26/10

CPC分类号： G02B26/0833 ,  G02B26/101 ,  G02B27/0172 ,  G02B27/0176 ,  G02B2027/0154 ,  G02B2027/0178

摘要： A near-eye display system employs a low-amplitude, low-frequency micro-electromechanical system (MEMS) mirror in series with a higher-amplitude, higher-frequency resonant MEMS mirror to rotate at a reduced amplitude and frequency with respect to the resonant MEMS mirror redistribute illumination pulses or pixels at the extents of a sinusoidal angular scan pattern of the resonant MEMS mirror.

公开(公告)号：US20220299768A1

公开(公告)日：2022-09-22

申请号：US17481683

申请日：2021-09-22

申请人： GOOGLE LLC

发明人： Timothy Paul Bodiya ,  Shreyas Potnis ,  Daniel Adema ,  Ian Andrews

IPC分类号： G02B27/01 ,  F21V8/00

摘要： A head-mounted display (HMD) system includes a micro-display configured to project light beams, each of light beams encompassing a range of wavelengths different from each of the other light beams, and a waveguide having multiple incouplers configured to receive and direct light into the waveguide. Each of the incouplers is a diffraction grating with a fill factor different from each of the other incouplers. In some embodiments, each of the incouplers has a different period value from each of the other incouplers and the period value of each of the incouplers is based on the range of wavelengths of light each of the incouplers is configured to receive.