50.5: Pupil Swim Measurement and Analysis of Near‐eye displays

• Published in: SID International Symposium Digest of technical papers Vol. 54; no. S1; pp. 371 - 374
• Main Authors: Rui, Congshan, Zhao, Lei, Hou, Tianwen, Liang, Jiaojiao, Wang, Chaohao
• Format: Journal Article
• Language: English
• Published: Campbell Wiley Subscription Services, Inc 01-04-2023
• Subjects: Distortion; eyebox; Image quality; Near-eye displays; Position measurement; pupil swim
• ISSN: 0097-966X; 2168-0159
• DOI: 10.1002/sdtp.16306

Pupil swim is defined as the perceived change of image quality as
the eye moves or rotates within the system pupil or eyebox. This will
lead to the change of image distortion, lateral chromatic
aberration, and MTF. Pupil swim will make people uncomfortable
as the eye rotates off the center axis and across the lens. Even with
perfect distortion correction at the center viewing position the user
will still experience some distortion when moving the eye around
because the distortion field at the edge is different than the field in
the center. In this paper, pupil swim is measured using near-eyedisplay measurement system and the change of image displacement
and distortion are calculated. The simulation and measurement
results show the virtual image under different pupil position has
shifted and the distortion at different pupil position is different.