A type of eyepiece design consisting of a plano-convex field lens and a cemented doublet lens as the eye lens.
Electro-optical device constructed from a crystal with attached electrodes used to modulate a laser beam. A phase delay of a laser transmitting through the crystal is modulated by applying a variable electric voltage, causing birefringence. The change is proportional to the square of the field, which is known as the Kerr effect.
A type of optical mount capable of six degrees of freedom that are singularly constrained during alignment. It is designed to minimize stress to the optics or optical assemblies it holds.
A measure of material hardness. A higher Knoop hardness corresponds to a stronger material.