The glasses — which weigh less than 100 grams — have two tiny projectors that display 3D images onto retro-reflective material. Those images bounce back to your eyes, producing a pretty cool scene in front of you.
Gamers will be able to interact with the images, similar to this scene from the 1977 film Star Wars: Episode IV – A New Hope:
There’s an interesting backstory with Jeri Ellsworth and Rick Johnson, who first began working on castAR while at Valve. Read all about it here.
Technical Illusions will use the money raised from Kickstarter to finish up the final production process. In light of the immediate interest, two stretch goals have been set for $600,000 and $800,000 to build add-on hardware that bolsters the whole castAR experience.