Patent ID: 11927872
Assignee: LUMUS LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC F  G  H

Claim 14:
15. A method for displaying an image to an eye of a user, the eye being located within an eye motion box, the method comprising the steps of:
(a) providing a display system comprising:
(i) a light-guide optical element (LOE) having a pair of major external surfaces that are parallel,
(ii) an image projector projecting image illumination of a collimated image, said image projector being optically coupled to said LOE so as to introduce said image illumination into said LOE so as to propagate within said LOE by internal reflection at said pair of major external surfaces, said image projector including an electrically-controllable variable lens, and
(iii) a coupling-out configuration associated with at least a coupling-out region of said LOE, said coupling-out configuration being configured to redirect at least part of said image illumination propagating within said LOE towards the eye motion box for viewing by the eye of the user,

(b) determining a current region of interest of the image; and
(c) varying a property of said electrically-controllable variable lens as a function of the current region of interest of the image so as to reduce at least one optical aberration in the region of interest at the expense of a reduction in viewed image quality in at least one other region of the image.