Beam waistcalculator

It is important to adjust the distance between the microscope oculars, so that it matches the distance between your eyes. This will yield better image quality and reduce eye strain.

Beam waistformula

Microscope Anatomy & Function Ocular Lenses The ocular lenses are the lenses closest to the eye and usually have a 10x magnification.  Since light microscopes use binocular lenses there is a lens for each eye. It is important to adjust the distance between the microscope oculars, so that it matches the distance between your eyes. This will yield better image quality and reduce eye strain. Back to Microscope

The beam waist of a Laser beam is the location along the propagation direction where the Beam Radius has a minimum. The waist radius is the beam radius at this location. A small beam waist can be obtained by focusing a Laser Beam with a Lens which has a high numerical aperture, and making sure that the lens aperture is largely filled by the input beam. For non-circular beams, the position of the beam waist can be different for different transverse directions. This phenomenon is called astigmatism, and it may be generated or removed by using cylindrical optics.

Location with minimum beam radius.The beam waist of a Laser beam is the location along the propagation direction where the Beam Radius has a minimum. The waist radius is the beam radius at this location. A small beam waist can be obtained by focusing a Laser Beam with a Lens which has a high numerical aperture, and making sure that the lens aperture is largely filled by the input beam. For non-circular beams, the position of the beam waist can be different for different transverse directions. This phenomenon is called astigmatism, and it may be generated or removed by using cylindrical optics.

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