Medical Definition of Abbe apertometre
1.
In microscopy, a device for measuring simultaneously, the numerical and angular apertures of an objective or condenser.
The back focal plane of the objective is viewed within auxiliary lens, and the device is set to show the position of an indicator just cutting into two opposite edges of the conoscopic field of view.
(11 Mar 1998)
Lexicographical Neighbors of Abbe Apertometre
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