# US 12,007,562 B2 · Optical systems for head-worn computers > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,007,562 B2 - Document ID: US12007562B2 - Status: Granted - Kind: B2 - Application number: 18/073,424 - Filed: 2022-12-01 - Published: 2023-09-21 - Granted: 2024-06-11 - Earliest claimed: 2016-03-02 - Assignees: Mentor Acquisition One, LLC - Applicants: Mentor Acquisition One, LLC - Inventors: Nima L. Shams; John N. Border; John D. Haddick - Web page: https://patentgrep.com/patent/US12007562B2 ## CPC - G02B 27/017: {Head mounted} - G02B 27/0093: {with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking} - G06F 1/163: {Wearable computers, e.g. on a belt} - G06F 3/011: {Arrangements for interaction with the human body, e.g. for user immersion in virtual reality (blind teaching G09B21/00)} - G06F 3/012: {Head tracking input arrangements} - G06F 3/013: {Eye tracking input arrangements (G06F3/015 takes precedence)} - G06F 3/0346: with detection of the device orientation or free movement in a three-dimensional [3D] space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors - G06T 3/02: Affine transformations (for image registration G06T3/147; for image mosaicing G06T3/4038) - G06T 3/4015: Image demosaicing, e.g. colour filter arrays [CFA] or Bayer patterns - G06T 7/73: using feature-based methods - G02B 2027/0114: {comprising dichroic elements} - G02B 2027/0118: {comprising devices for improving the contrast of the display / brillance control visibility} - G02B 2027/013: {comprising a combiner of particular shape, e.g. curvature} - G02B 2027/0174: {holographic} - G06T 2207/30201: Face - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ## Abstract Aspects of the present disclosure relate to optical systems with ergonomic presentation of content for use in head-worn computing systems. A method for controlling a head-worn computer when viewing virtual images, including image content, that encourages an ergonomic head position to reduce neck pain, includes determining an angle of the head-worn computer relative to horizontal, determining an angle of a line of sight to the center of the virtual image as presented to a user's eye, determining a deviation between the determined angle of the line of sight and a predetermined ergonomic angle, and shifting the image content of the virtual image vertically as displayed to the user's eye so that a portion of the image content is not viewable, wherein the amount of shifting is in reverse correspondence to the magnitude of the determined deviation. ## Claims ### Claim 1 A method of presenting content to a user of a wearable head device, the method comprising: receiving initial content for presentation via a display of the wearable head device; determining, via one or more first sensors of the wearable head device, an activity of the user; in accordance with a determination that the activity comprises a first activity: determining, via one or more second sensors of the wearable head device, a viewing axis of the user; determining whether an angle between the viewing axis and a horizontal axis is between a first predetermined angle and a second predetermined angle; in accordance with a determination that the angle is not between the first predetermined angle and the second predetermined angle: cropping the initial content to produce cropped initial content, wherein the cropped initial content comprises a portion of the initial content between the viewing axis and the horizontal axis; shifting the cropped initial content toward a point between the viewing axis and the horizontal axis to generate an edited content; and presenting, via the display, the edited content; and in accordance with a determination that the angle between the viewing axis and the horizontal axis is between the first predetermined angle and the second predetermined angle, presenting, via the display, the initial content; and in accordance with a determination that the activity does not comprise the first activity, presenting, via the display, the initial content. ### Claim 2 (depends on 1) The method of claim 1, wherein the first activity comprises a movement at a speed not greater than a threshold speed. ### Claim 3 (depends on 2) The method of claim 2, wherein the first activity comprises the movement at the speed not greater than the threshold speed for at least a threshold amount of time. ### Claim 4 (depends on 1) The method of claim 1, wherein the determination that the activity does not comprise the first activity comprises determining that the activity comprises a movement at a speed greater than a threshold speed. ### Claim 5 (depends on 1) The method of claim 1, wherein the determination that the activity does not comprise the first activity comprises determining that the activity comprises traveling in a vehicle, walking, running, laying down, interacting with a mixed reality environment of the wearable head device, or any combination thereof. ### Claim 6 (depends on 1) The method of claim 1, wherein: the first predetermined angle is 10 degrees below the horizontal axis, and the second predetermined angle is 20 degrees below the horizontal axis. ### Claim 7 (depends on 1) The method of claim 1, wherein the generating the edited content comprises fixing the cropped initial content relative to a vertical axis. ### Claim 8 (depends on 1) The method of claim 1, wherein the first predetermined angle and the second predetermined angle are determined based on a plane of the initial content. ### Claim 9 (depends on 1) The method of claim 1, wherein the shifting the cropped initial content comprises aligning a top of the cropped initial content with the horizontal axis. ### Claim 10 (depends on 1) The method of claim 1, wherein the presenting the edited content to the user comprises presenting the edited content along a plane orthogonal to the viewing axis. ### Claim 11 (depends on 1) The method of claim 1, wherein the determining the viewing axis comprises: receiving, via the one or more second sensors, an image of an eye of the user; and determining the viewing axis based on the image. ### Claim 12 (depends on 1) The method of claim 1, wherein the determining the viewing axis comprises determining an orientation of the wearable head device relative to the user, and wherein the viewing axis is determined based on the orientation. ### Claim 13 (depends on 1) The method of claim 1, wherein the one or more first sensors comprise an inertial measurement unit (IMU), an accelerometer, a tilt sensor, a GPS unit, an altimeter, a magnetometer, or any combination thereof. ### Claim 14 (depends on 1) The method of claim 1, wherein the one or more second sensors comprise an IMU, an accelerometer, a tilt sensor, a GPS unit, an altimeter, a magnetometer, or any combination thereof. ### Claim 15 A wearable device comprising: a display; one or more first sensors; one or more second sensors; one or more processors configured to perform: receiving initial content for presentation via the display; determining, via the one or more first sensors, an activity of a user of the wearable device; in accordance with a determination that the activity comprises a first activity: determining, via the one or more second sensors, a viewing axis of the user; determining whether an angle between the viewing axis and a horizontal axis is between a first predetermined angle and a second predetermined angle; in accordance with a determination that the angle is not between the first predetermined angle and the second predetermined angle: cropping the initial content to produce cropped initial content, wherein the cropped initial content comprises a portion of the initial content between the viewing axis and the horizontal axis; shifting the cropped initial content toward a point between the viewing axis and the horizontal axis to generate an edited content; and presenting, via the display, the edited content; and in accordance with a determination that the angle between the viewing axis and the horizontal axis is between the first predetermined angle and the second predetermined angle, presenting, via the display, the initial content; and in accordance with a determination that the activity does not comprise the first activity, presenting, via the display, the initial content. ### Claim 16 (depends on 15) The wearable device of claim 15, wherein the first activity comprises a movement at a speed not greater than a threshold speed. ### Claim 17 (depends on 15) The wearable device of claim 15, wherein the determination that the activity does not comprise the first activity comprises determining that the activity comprises a movement at a speed greater than a threshold speed. ### Claim 18 (depends on 15) The wearable device of claim 15, wherein the one or more first sensors comprise an IMU, an accelerometer, a tilt sensor, a GPS unit, an altimeter, a magnetometer, or any combination thereof. ### Claim 19 (depends on 15) The wearable device of claim 15, wherein the one or more second sensors comprise an IMU, an accelerometer, a tilt sensor, a GPS unit, an altimeter, a magnetometer, or any combination thereof. ### Claim 20 A non-transitory computer readable storage medium storing instructions that, when executed, cause one or more processors to perform a method comprising: receiving initial content for presentation via a display of the wearable head device; determining, via one or more first sensors of the wearable head device, an activity of the user; in accordance with a determination that the activity comprises a first activity: determining, via one or more second sensors of the wearable head device, a viewing axis of the user; determining whether an angle between the viewing axis and a horizontal axis is between a first predetermined angle and a second predetermined angle; in accordance with a determination that the angle is not between the first predetermined angle and the second predetermined angle: cropping the initial content to produce cropped initial content, wherein the cropped initial content comprises a portion of the initial content between the viewing axis and the horizontal axis; shifting the cropped initial content toward a point between the viewing axis and the horizontal axis to generate an edited content; and presenting, via the display, the edited content; and in accordance with a determination that the angle between the viewing axis and the horizontal axis is between the first predetermined angle and the second predetermined angle, presenting, via the display, the initial content; and in accordance with a determination that the activity does not comprise the first activity, presenting, via the display, the initial content.