Search
Menu
Bristol Instruments, Inc. - 872 Series High-Res 4/24 LB
Photonics Dictionary

optical extent

Mathematically defined as the product of etendue (or throughput) and the square of the refractive index, the optical extent is the quantitative value that describes the geometrical limit to how much light can pass through an optical system.
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.