SUNNYVALE, CA — Mar. 12, 2013: SBG Labs in partnership with Rockwell Collins has received a contract from the Army’s Night Vision Laboratory to support development of a next generation display to work with the Army’s Driver Vision Enhancement (DVE) program. The two-part contract calls for the development of a monochrome collimated display then a full color display.
Currently, drivers in vehicles like the Abrams tank, look at a small 15-inch monitor for night vision assisted driving operations. But because this is not a collimated display, drivers can experience discomfort or nausea while looking at this display, especially in a moving vehicle.
A collimated display is sometimes referred to as a virtual window, because the displayed image is stabilized with respect to the observer. That is, distant objects remain fixed in space as the head moves just as they do when one looks out a window. Replacing the existing DVE display with a collimated one will significantly reduce or eliminate viewer discomfort and nausea.
In phase one of this contract, SGB Labs will demonstrate a large eight-inch diagonal monochrome green collimated display using its proprietary Switchable Bragg Grating (SBG) technology. A display with a limited field of view will be used to prove out the feasibility before a color display with a wider field of view is constructed.
This SBG technology has been proven in smaller sized display, but this will be the first time it has been used in such large display surfaces. It will also be the first time the display is viewed at arm’s length instead of near the eye, which will allow viewers to focus on the display surface. SBG uses holographic exposure tools to create electrically switchable optical gratings and diffractive optical elements that can be embedded in thin (2mm) clear optical waveguides. This allows an image to be injected into the waveguide from the side where it travels down the waveguide by total internal reflection. These switchable elements are used to extract the image and can be used to increase the resolution and field of view of the image.
“Collimated displays are typically associated with large aircraft simulators using projection systems with complex screen technology,” said SBG Labs CTO Jonathan Waldern. “This is the first time we are aware of where a collimated display will be made in this size and thinness range, and certainly the first to do this in a planar waveguide using holographic technology.”
About SBG Labs, Inc.
Located in Silicon Valley, CA, SBG Labs is the leading optical technology company that has developed a revolutionary electrically switchable holographic device called “Switchable Bragg Gratings,” hence the name SBG Labs. The electro-holographic optical technology merges breakthroughs in nanomaterial science and optical software processing by recording holographic optics into nanocomposite electro-optical material, allowing this technology to be used in many everyday products and applications.