The USAF has defined the need to replace bulky, expensive, multi-element classical projection optics systems with light-weight, thin see-through diffractive optics in a waveguide configuration. A novel multiple holographic element design is proposed which is more efficient than conventional input-output gratings on a waveguide substrate. This multi - HOE design will increase the FOV and improve the light throughput for functional gaze angles within the eye box. The holographic structures will be spatially optimized by an exclusive post recording technique which adds a new degree of freedom in the hologram design as compared to traditional methods. Phase I optical design work will be complemented with fabrication and characterization of these unique spatially tuned holographic gratings which are critical to obtaining the desired system performance. Pathway to color is open since the holographic media is panchromatic. Using proprietary processes already developed for manufacture of LEP eyewear that incorporate holograms and a versatile qualified ballistic eyewear system with a unique two-part polycarbonate lens, transition to curved visor will be investigated to develop an integrated holographic waveguide display visor (HWVD). The technology offers a foundation for advancing HMDs with broad functionality for both military and civilian forces.
Benefit: Replace bulky, expensive, multi-element classical projection systems with lightweight, thin, see-through diffractive optics. Decrease weight and bulk on the head and improve ergonomics.
Keywords: Tranparent Holographic Waveguide Optics, Lightweight Helmet Mounted Display, Integrate Projection Optics Into Curved Visors, 30 X 30 Mm Eye Box, 40-Deg Field Of View, Demonstr
