active eyewear : Spreety TV Online Glossary
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active eyewear n. Glasses that contain liquid
crystal lenses, used with 3-D imagery systems.
The right and left lenses in active eyewear turn on and off in
time with the presentation of images for the right and left eye by a high-speed
digital video projector. Thus, the left eye only sees left eye images and the
right eye only sees right eye images. (Synchronization is maintained through a
timing signal transmitted from the projector and picked up by the eyewear.)
Active eyewear is more expensive than the passive eyewear used with traditional
anaglyphic red/green or polarized lenses, but only requires a single-lens
projector and produces images that are superior to those produced by an
anaglyphic process since each eye sees a full-screen, full-resolution,
full-motion image.
Also 3-D eyewear; wireless shutter eyewear. Compare
passive eyewear.
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