An optical reticle is a component of an embedded imaging system, glass substrate with precise reticle lines formed on its surface through precision etching. The reticle lines are extremely accurate and can be in the form of crosses, dots, circles, initials, etc. Reticles are widely used in optical instruments that require measurement layout, such as telescopes, binoculars, gun sights, and geodesy.
Reticles are divided into positive and negative forms. Positive reticles are deposited by vacuum sputtering onto a substrate with a metallized pattern, which has high reflectivity and is suitable for front and general applications. Negative reticles use the same coating technology, but leave the pattern blank, which is suitable for front and high-light applications.

Custom-made is available.