Free Optical Design Software – fresnel

Hi all!

We built fresnel as an internal optical design tool at work, and figured others might benefit from it, so we've released it for free online at fresnel.h-part.com

fresnel is designed to feel more like CAD software (Solidworks, onshape) and less like Zemax. This might make it more approachable to flashlight enthusiasts who want to model a potential design. Some video tutorials are here: youtube playlist , including a tutorial covering basic flashlight design here: flashlight_design_video

Hope you enjoy!