is that each polarization can display only half as many scanning lines. Advantages Generally inexpensive. Do not require power. Do not require a transmitter to synchronize them with the display. Do not suffer from flicker. Lightweight. Comfortable. Disadvantages The images for polarized glasses have to share the screen simultaneously in which full, native resolution is downgraded, compromising picture quality of both sides of the image delivered to each eye simultaneously. A full 1080p picture results from image fusion. This disadvantage does not occur on projections where each pixel can contain information for both eyes. Associated with the headaches many people attribute to 3D viewing. Narrow vertical viewing angles compared to Active shutter 3D See also Vectograph References External links "Experiments With Polarized Light" by Donald E. Simanek. 3D STEREO PORTAL Videos & Photos Collection 3D imaging Eyewear Stereoscopy