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focal power |
Also found in: Medical | 0.03 sec. |
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focal power [′fō·kəl ‚pau̇·ər] (optics) A measure of the ability of a lens, mirror, prism, or optical system to converge a parallel beam of light; equals the reciprocal of the focal length. Also known as power. 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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