| 摘要 |
A protection system for a video display terminal (VDT) is designed for two basic purposes, first, the blockage and absorption of EMF, ultraviolet and X-rays from the VDT, and second, the elimination of glare from ambient light directly impacting the eye and reflected from the screen VDT. The invention comprises a dark, dull enclosure which adjustably connects to the front of the VDT and has a first, lower reflector having a metal-based reflective surface absorb some harmful rays and reflects the visual image and some of the harmful rays from the VDT to a second, upper reflector having an organic-based reflective surface which reflects the visual light spectrum image forward, so that it can be viewed by persons sitting in front of the VDT while allowing the harmful higher-frequency radiation to harmlessly pass through the plastic material. The first reflector has a grounded ferromagnetic screen lining to absorb EMF from the screen, and also preferably a lead foil lining to at least partially absorb higher frequency radiation such as UV and X-rays. Eyeglasses with an annular gradient tint are also preferably used with the system to further reduce glare.
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