I'm working on Torch Lens Maker [1], an open-source Python library for differential geometric optics. The goal of this project is to design optical systems with modern numerical optimization (PyTorch autograd). The website has a detailed roadmap of what I have planned.

I also had a recent blog post [2] do fairly well on HN, and now I'm kinda thinking about a new design for version 2 of that project because I can't help it I guess.

[1] https://victorpoughon.github.io/torchlensmaker/

[2] https://victorpoughon.fr/i-tried-making-artificial-sunlight-...