There's some interesting info from Zemax on manufacture. https://www.zemax.com/blogs/news/future-of-cell-phone-camera-lens-manufacturing https://www.zemax.com/

There's some interesting info from Zemax on manufacture. https://www.zemax.com/blogs/news/future-of-cell-phone-camera-lens-manufacturing https://www.zemax.com/blogs/news/future-of-cell-phone-camera... Coarse manufacture is fairly simple - you can just press out plastic blanks. The tricks are fine shaping and polishing. You can also use resin: https://jp.mitsuichemicals.com/en/techno/feature/feature06.htm https://jp.mitsuichemicals.com/en/techno/feature/feature06.h...