3 ms·
How did you spread laser light over larger area? The idea I'm having right now is reflecting it off of the rough side of aluminum foil.
by scotty79 2y ago
How did you spread laser light over larger area?
The idea I'm having right now is reflecting it off of the rough side of aluminum foil.
- tianqi 2y agoI remember we just simply shone at a white wall.
- deleted 2y ago[deleted]