Search
Menu
DataRay Inc. - ISO 11146-Compliant Laser Beam Profilers
Photonics Dictionary

diopter

A unit of optical measurement that expresses the refractive power of a lens or prism. In a lens or lens system, it is the reciprocal of the focal length in meters. For example, if a lens has a focal length of 25 cm, the lens would have a power of 4 D. The lens with the shorter focal length has the greater power in diopters.
Products & Suppliers
Related Categories

We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.