brandpunt (zn):
A fixed reference point on the concave side of a conic section
focus
brandpunt (zn):
A point of convergence of light (or other radiation) or a point from which it diverges
focal point, focus
Via: Ensyns.nl
brandpunt (zn):
focus(cs) střed čočky.
(de) Punkt, in dem achsenparallel einfallende Strahlen gebündelt werden.
(pt) (termo de ótica).
(ja) —.
(ja) —.
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Via: Memodata.com