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point source |
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source, point A source whose dimensions are sufficiently small to cause a radiation with a high degree of coherence. If the point source is situated on the axis of an optical system it gives rise to an axial ray and it is referred to as an axial point source. See coherent sources; axial ray. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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