4:27

Depth of focus

By: plintilh

Depth of focus - image plane

21:21

Numerical aperture revisited

By: plintilh

N.A Plus immersion oil

10:26

el amohadon de plumas

By: garodrig

cortometraje animado en espanol

3:35

Object detail vs. acceptance angle

By: plintilh

The finer the spatial detail in an object the wider the diffraction angle - easily seen with a laser pointer and a fine grating.

4:32

Fourier musical analogy

By: plintilh

Complex frequency-based information can be decomposed into combinations of simple waveforms.

39:56

The Hunting Ground

By: smairold

The Hunting Ground cced

4:13

Importance of Condenser N.A.

By: plintilh

Condenser N.A. must at least match that of the objective to realize full resolution.

7:58

Deriving Numerical Aperture = N.A.

By: plintilh

The geometries of diffraction patterns must match the geometries of acceptance angle.