Cogni Trax

Cogni Trax is a company that has developed hard edge occlusion for optical see through displays, called alpha Pix.

Their technology uses at least one SLM and quarter wave plate to cancel out light.

Alpha Pix™, is an ultra-low power spatial compute platform developed by Cogni Trax. Existing spatial computing platforms such as video-pass-through VR and optical see-through AR headsets both have limitations. While VR headsets are bulky, slow and heavy, the AR displays are power hungry due to low efficiency of the Waveguides used. Alpha Pix™ is an ultra-low power spatial compute platform that overcomes these challenges. Designed like a smartphone camera, the patented Alpha Pix ™ technology utilizes light from the ambient scene in the user’s surroundings thereby not requiring power needed for new photon generation and only consumes about 70mW of power. The Alpha Pix™ CMOS display panel is designed like a smartphone camera, where the imaging lens is integrated directly on the CMOS panel. Moreover, employing a catadioptric combiner allows a compact folded optical path enabling very high optical efficiency ranging from 25-75% thereby reducing power consumption.

Based in Silicon Valley, Cogni Trax is a cutting-edge display photonics startup company focusing on unique visual experience for AR smart glasses application. Their patented Alpha Pix™ platform demonstrates a world first catadioptric combiner in a thin form factor for AR smart glasses. Thanks to Cogni Trax’ patented Alpha Pix™ technology that controls per-pixel transparency in the virtual image plane, Virtual objects and Holograms in Black color can now be realized. These Black holograms can hard-edge occlude Physical objects in the background REALITY scene making content visibility possible even in direct sun-lit environments.