I was thinking about Canon's implementation of the Intelligent Viewfinder, which uses a transmittive LCD to display AF points and other information.
http://www.imaging-resource.com/PRODS/E7D/ZPOLYNETLCD.JPG
This isn't the first time we've discussed hybrid viewfinders and possible implementation on DSLR cameras, but here's an idea for a more advanced information overlay: A full-color viewfinder overlay can be implemented by replacing the transmittive LCD and illumination LED in the Intelligent Viewfinder with a transparent OLED display as described in
this article. I'm not sure about patents regarding this system, but it would be relatively simple to implement. If implemented correctly, the OLED display could show a Live View image with the mirror up, hence producing a hybrid viewfinder.
--DragonLord
Last edited by bwDraco; 07-09-2012 at 09:41 AM.