Welcome to lightsource.tech – Tools for optical calculations

Use our tools to easily perform frequently occurring optical calculations.

Collimator Tool

Calculate the beam diameter, divergence and illuminance from the properties of your light source and collimator. See image below.

Angle to NA to f-number to steradian

Convert angle, numerical aperture, f-number, and steradian into each other. You can provide any of the values, and the other three values will be calculated.

Monochromator Tool

Calculates the aperture, maximum possible wavelength and bandwidth of a monochromator.