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focal point |
Also found in: Dictionary/thesaurus, Medical, Legal, Wikipedia, Hutchinson | 0.04 sec. |
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focal point the point on the axis of a lens or mirror to which parallel rays of light converge or from which they appear to diverge after refraction or reflection focal point [′fō·kəl ‚pȯint] (optics) The point to which rays that are initially parallel to the axis of a lens, mirror, or other optical system are converged or from which they appear to diverge. Also known as principal focus. 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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Yonder was Arthur, King of Britain; yonder was Guenever; yes, and whole tribes of little provincial kings and kinglets; and in the tented camp yonder, renowned knights from many lands; and likewise the selectest body known to chivalry, the Knights of the Table Round, the most illustrious in Christendom; and biggest fact of all, the very sun of their shining system was yonder couching his lance, the focal point of forty thousand adoring eyes; and all by myself, here was I laying for him. |
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