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optical |
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optical 1. of, relating to, producing, or involving light 2. of or relating to the eye or to the sense of sight; optic 3. (esp of a lens) aiding vision or correcting a visual disorder optical [′äp·tə·kəl] (optics) Pertaining to or utilizing visible or near-visible light; the extreme limits of the optical spectrum are about 100 nanometers (0.1 micrometer or 3 × 1015hertz) in the far ultraviolet and 30,000 nanometers (30 micrometers or 1013hertz) in the far infrared. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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