With the glasses, the opposite image is blocked out for each eye via polarizing lenses at a rate of up to 140Hz. According to Elsa, each eye sees a slightly offset picture from what the other sees, just like your eyes see in the real world. The effect is a sense of depth that games just cannot create alone no matter how great their graphics are. It should be noted that, if your monitor is not capable of running a 120Hz or higher refresh rate, you may get some serious eyestrain with the 3D Revelator since each eye sees half the refresh rate of what the monitor is running at and anything below 60Hz can be uncomfortable. We feel our readers are the curious types who may be interested in how the technology works, so here is a quick and dirty explanation of polarization and how the Revelator uses it.
Polarization is a technique by which light can be filtered through a translucent film.
On a polarized film, fine, parallel and tightly packed opaque lines are laid out. These lines block about half of the visible light going through because the lines are close enough together to stop many visible light waves. Visible light can be entirely stopped by laying another polarized film flat against the first, but with its lines at a right angle. With the lines of each film at right angles to each other, a checkerboard is formed through which visible light cannot pass. With the Revelator, there is one layer of permanently polarized film and separate layers for each eye that polarizes at a right angle to the first film only when current is applied.