Patent Number: 6,169,526

Title: Space-variant brightness control system for see-through displays

Abstract: The visibility of an image projected onto a background of spatially and temporally varying brightness can be optimized by dynamically adjusting the brightness of the projected image. The brightness of the background is detected on a zone-by-zone basis and the brightnesses of the corresponding portions of the projected image are adjusted accordingly.

Inventors: Simpson; Robert G. (Ellicott City, MD), Burne; Richard A. (Columbia, MD)

Assignee: AlliedSignal Inc.

International Classification: G02B 27/01 (20060101); G09G 005/00 ()

Expiration Date: 01/02/2018