See-through display brightness control

A display system comprising:

• a see-through, near-eye display device including a respective display optical system for each eye positioned to be seen through by the respective eye;
• an image generation unit for each eye attached to the see-through display device for generating at least one virtual image for display in the display optical system;
• a respective arrangement of gaze detection elements positioned on the display device;
• logic coupled to the gaze detection elements, the logic determines a gaze estimation for a wearer of the see-through display device, the logic accesses brightness data for a field of view of the system, the logic determines light intensity of a region in the field of view being gazed at, the logic adjusts brightness of the see-through display device based on light intensity of the region.

A method comprising:

• tracking a field of view of a wearer of a see-through display using a first camera;
• determining a gaze vector for at least one eye of the wearer using a second camera;
• identifying a brightness of a region in the field of view at which the wearer is gazing based on the tracking and the gaze vector;
• determining pupil size of the wearer;
• and
• adjusting brightness of the see-through display based on the light intensity of the region and the pupil size.