Pinhole
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Pinhole Geometry: Four Corners are Perfect
Square and hexagonal pinholes provide identical image signal levels, if the geometries are compared in a sensible manner. The amount of light passing the pinhole depends on the area of that aperture,…Read article
Pinhole Controls Optical Slicing
True confocal scanning microscopes (TCS) use a variable detection pinhole. Good optical sectioning tries to use just the inner core of the PSF.Read article
Confocal Optical Section Thickness
Confocal microscopes are employed to optically slice comparably thick samples.Read article