Haven't named it yet. Built it myself, but there's a few rudimentary versions that use uni-modal stimulation out there. Searching the term bio photo modulation should help.

I started building myself one, and after years and research I've arrived at trimodal stimulus being superior. I'm making all design schematics, cad files, software files, structural blueprints open source once I do safety analysis on circuitry and material. Additionally the frequencies selection process for the ones used and gamma oscillation increasing techniques with accompanied research that lead me to choose such techniques over others.

This has been a solo project for a few years that's required hunting down some of the newest techniques of brain stimulation and learning neurofeedback tech, so it's very time consuming going it solo. I hope to organize stuff soon so many people can experiment, it's pretty damn cheap too!

(Uni modal stimulators cost 5k$, I cut it down to 250$ for trimodal)