ACTIVE DIMMING CONTROL USING DISPARITY CAMERA IMAGES

A waveguide display includes a waveguide, a projector configured to project images (e.g., images to be displayed to a user and/or disparity test images) onto the waveguide, an input coupler configured to couple the images into the waveguide, and one or more output couplers on the waveguide. At least one output coupler of the one or more output couplers is configured to direct the projected images towards the user's eye. At least one output coupler of the one or more output couplers is configured to direct the projected images towards a disparity camera. The waveguide display includes an active dimming layer on the side of the waveguide opposing the user's eye. The active dimming layer is electrically controllable to attenuate ambient light reaching the users eye via the waveguide, based on the effect of the ambient light on the visibility of the projected images measured using the disparity camera.