- Joined
- Jul 2, 2012
- Messages
- 31
- Points
- 8
A little project with scrap 780nm laser diode form CD burner 
I pressed the diode to metal pen and I can "write" on dark plastic, wood and gray cardboard . Diode is powered by LM317 set to 180mA.
Here is a video of this:
Laser Pen - YouTube
Watch in HD !
Merry Christmas
rafalrrrr
I pressed the diode to metal pen and I can "write" on dark plastic, wood and gray cardboard . Diode is powered by LM317 set to 180mA.Here is a video of this:
Laser Pen - YouTube
Watch in HD !
Merry Christmas
rafalrrrr
