Microvision Inc (MVIS)

[Norm2]

I was interested in the reference to the Substrate Guided Relay Optics in the post above by Aware. I found a patent application by Microvision theat gives a little info on the subject. Too technical for me.

"Substrate-guided relays for use with scanned beam light sources
USPTO Application #: 20090015929
Title: Substrate-guided relays for use with scanned beam light sources
Abstract: Substrate-guided relays that employ light guiding substrates to relay images from sources to viewers in optical display systems. The substrate-guided relays are comprised of an input coupler, an intermediate substrate, and an output coupler. In some embodiments, the output coupler is formed in a separate substrate that is coupled to the intermediate substrate. The output coupler may be placed in front of or behind the intermediate substrate, and may employ two or more partially reflective surfaces to couple light from the coupler. In some embodiments, the input coupler is coupled to the intermediate substrate in a manner that the optical axis of the input coupler intersects the optical axis of the intermediate substrate at a non-perpendicular angle. (end of abstract)

Agent: Microvision, Inc. - Redmond, WA, US
Inventors: Christian Dean DeJong, Karlton D. Powell, Mark O. Freeman, Joshua O. Miller
USPTO Applicaton #: 20090015929 - Class: 359633 (USPTO)"

Norman