CastAR is a set of technologies that allow you to see projected augmented reality, which is like seeing 3D holographic projections as if they were right in front of you. The technology consists of glasses you wear, a surface, a tracking camera within the glasses, and a 3D input device.
The glasses have two micro-projectors on them, one for each eye. They project out a stereoscopic image to the surface. This surface is a special material called retro-reflective. It is designed to bounce light almost directly back with very little scatter. Thus, the wearer of the glasses will see a crisp bright image, but someone looking off to the side will only see a very faint or no image at all. Within the glasses there is a tiny camera which tracks infrared LEDs. This allows the hardware to know your position and orientation in the physical world, allowing the computer to display and update the visuals as you move around them. Finally, there is a 3D input device called the “magic wand”. This allows you to interact with the environment in 3D space.
Detailed specifications about this technology are included further down on this page.
CastAR is designed to be easily portable. The glasses connect to your PC via an HDMI cable as well as an USB cable. The surface rolls up very easily.
CastAR made nd judges alike. The team at Technical Illusions swept the show and took homeEditors Choice and Best its first public appearance at the 2013 San Francisco Maker Faire as a proof-of-concept prototype, wowing show goers aEducational awards. They repeated this triumph at New York Maker Faire with a win of Editors and Educators Choice awards
Photo courtesy of Laughing Squid
What are the castAR Specifications?
Less than 100 grams in weight
Fits over most prescription glasses
Ultra flexible micro coax cable
Active shutters with 50% duty cycle
1280 x 720 resolution per eye 120hz
refresh rate per eye 24 bits of color per pixel
65 degree horizontal field of view 93% fill factor
110 degree FOV
120hz update rate
8.3ms response time
6 degrees of freedom
Absolute positioning Over 200 unique tracking points 0.07mm accuracy at 1.5m
AR & VR Clip-On
90 degree horizontal FOV Very low distortion freeform optics 5mm by 8mm eye box
Removable flip up shutter for AR mode