| CPC G02C 7/083 (2013.01) [A61B 3/032 (2013.01); G02B 27/0093 (2013.01); G02B 27/0172 (2013.01); G02F 1/294 (2021.01); G06F 3/013 (2013.01); G02B 2027/0178 (2013.01)] | 13 Claims |
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1. A method of adjusting refractive power of a varifocal lens of an augmented reality device, the method comprising:
outputting a first character having a first size at a first position on a waveguide of the augmented reality device;
obtaining a first user input response corresponding to the first character;
obtaining at least one piece of first gaze information detected through a gaze tracking sensor of the augmented reality device at a time point at which the first user input response is obtained;
comparing the first character with the first user input response;
determining, based on a result of the comparing, refractive power of the varifocal lens of the augmented reality device at the time point at which the first user input response is obtained as a first refractive power; and
performing gaze tracking sensor calibration by mapping the at least one piece of first gaze information with coordinate values representing the first position where the first character is displayed on the waveguide.
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