Optical calibration
AssigneeApple Inc.
InventorsBrian S. LAU, Michael J. OUDENHOVEN, Chih Jen CHEN, Dominic P. CINCIONE, Christopher PATTON
Life of this patent
Estimating the term…
Abstract
A wearable electronic device can include displays and/or cameras that can be calibrated for accurate recording and visual output. Whereas some aspects of a wearable electronic device can be calibrated at the time of production, usage and wear of the wearable electronic device can result in certain components becoming misaligned. A calibration device can provide an output that serves as a reference for each of a pair of displays of the wearable electronic device. Each of the displays can be independently adjusted so their corresponding outputs are properly aligned with the view of the external environment.
Claims20
A head-mountable device comprising:
- a first display comprising:
- a first waveguide configured to provide a first view to a calibration device;
- and
- a first projector for projecting light onto the first waveguide;
- a second display comprising:
- a second waveguide configured to provide a second view to the calibration device;
- and
- a second projector for projecting light onto the second waveguide;
- a sensor;
- and
- a processor configured to:
- detect the calibration device outputting an image of a calibration fiducial;
- determine, with the sensor, a position and orientation of the calibration device with respect to the head-mountable device;
- output, on the first display, a first display fiducial;
- output, on the second display, a second display fiducial;
- receive a user input;
- based on the user input, determine a recommended calibration;
- and
- operate the first display and the second display based on the recommended calibration.
A head-mountable device comprising:
- a first display comprising a first waveguide and a first projector for p light onto the first waveguide, the first display being configured to output a first display fiducial within a first view of a calibration fiducial of a calibration device;
- a second display comprising a second waveguide and a second projector for projecting light onto the first waveguide, the second display being configured to output a second display fiducial within a second view of the calibration fiducial of the calibration device;
- a sensor configured to detect a position and orientation of the calibration device with respect to the head-mountable device;
- and
- an input device configured to receive:
- a first user input, the first display being configured to update the first display fiducial based on the first user input and the position and orientation of the calibration device with respect to the head-mountable device;
- and
- a second user input, the second display being configured to update the second display fiducial based on the second user input and the position and orientation of the calibration device with respect to the head-mountable device.
A method of calibrating a head-mountable device, the method comprising:
- detecting, with a sensor of the head-mountable device, a calibration device outputting an image of a calibration fiducial;
- outputting, on a display of the head-mountable device, a display fiducial with respect to the calibration fiducial;
- receiving a first user input;
- updating the display fiducial by adjusting a position and orientation of the display fiducial with respect to the calibration fiducial;
- receiving a second user input indicating that the position and orientation of the display fiducial match a position and orientation of the calibration fiducial;
- determining a recommended calibration based on the updated display fiducial and the second user input;
- and
- operating the display based on the recommended calibration.
Dependencies are inferred from the claim text.