Tuatara: Volume 23, Issue 1, July 1977
Figure 2 — Schematic diagram showing how a ‘dry ‘objective fails to absorb all the diffraction of light rays. By using a liquid, e.g. oil, between the cover glass and objective, the numerical aperture is increased so that the lens can resolve all of the diffraction aperture
Figure 2
Schematic diagram showing how a ‘dry ‘objective fails to absorb all the diffraction of light rays. By using a liquid, e.g. oil, between the cover glass and objective, the numerical aperture is increased so that the lens can resolve all of the diffraction aperture.