focal point

The point toward which light rays converge to form an image after passing through a lens or having been reflected by mirrors. The condition of sharpest imagery.

Related Terms
focal plane,   focal point,   ground control point GCP,   Multi point videoconference,   National Control Point Procedures,   point spread function,   Point to Point Transmission,   Primary Entry Point PEP,   Termination point,  

External links for focal point
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focal point on Answers
focal point on The Free Dictionary

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