Lecture+9a - Numerical Aperture(also ermed Object-Side...

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Numerical Aperture (also ermed Object-Side Aperture) is a value (often symbolized by the abbreviation NA) originally defined by Abbe for microscope objectives and condensers. It is given by the simple expression: Numerical Aperture NA = n • sin( α )
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2 n dn λ = Transmitted
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What is the speed (f-number) of a lens with a diameter of 5.4 cm
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This note was uploaded on 02/14/2011 for the course SCIENCE 321 taught by Professor Aaa during the Spring '11 term at Windsor.

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Lecture+9a - Numerical Aperture(also ermed Object-Side...

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