Safety Eyewear Protection for work Safety spectacles offer protection from light to moderate Impact hazards. These lenses are not unbreakable or impenetrable. This standard meets or exceeds the current ANSI Z87.1 A prism can break white light up into the visible light spectrum. Visible light is a form of electromagnetic (EM) radiation, as are radio waves, infrared radiation, ultraviolet radiation, X-rays and microwaves. Generally, visible light is defined as the wavelengths that are visible to most human eyes.
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