Ernst Abbe

Ernst Karl Abbe is a pioneering physicist and has done outstanding contributions to the fields of optics, microscopy, ....

Abbe Diffraction limit d = lambda/(2 n sin(theta))

Airy disk (3D picture/simulation)

Resolution limits

References and Further reading

http://www.rsc.org/chemistryworld/Issues/2008/November/AbbesRefractometer.asp