Increased 3D Virtual Image Opaqueness and Contrast Resolution in Optical See-Through Head Mounted Displays

Mixed-Augmented Reality (M-AR) provides the Warfighter with a unique and realistic training experience that blends virtual objects into the live training environment. The see-through head mounted display (HMD) is the critical interface into this type of training environment. Current HMDs, however, have principal limitations. Virtual 3D objects projected within see-through HMDs tend to appear translucent and ghostly. Also, the HMDs are lacking of opaqueness and resolution under varying levels of luminance both indoors and outdoors. We propose a novel approach that overcomes the above shortcomings. Our HMD is based on retinal scanning display (RSD) technology that uses a curved primary mirror in front of the eye in conjunction with novel method of creating local opaqueness. With the format of eye safety goggles, it is ergonomic, compact, and lightweight and provides minimal reduction of the see-through FOV. In Phase I, we will evaluate the feasibility of the proposed concept and develop a technology roadmap and system design addressing methods for increasing the level of opaqueness and contrast resolution. We will investigate trade-offs, limitations and cost factors associated with using the new HMD design to increase fidelity. We will demonstrate a working breadboard and develop initial designs of a Phase II prototype.