Vermes
Advanced Member level 4
This is a laser of approximately 200mW based on diode of DVD-RW recorder. Laser is strong enough to burn black plastic paper, etc.
Construction:
Diode was removed from Philips DVD-8631 recorder. It is powered from classic application of current source based on LM317. To protect the diode, a diode 1N4148 was antiparallel connected to it. In this project, lenses from an ordinary CD were used, but it is better to use a good collimator. The lens was glued to the heat sink of the diode with Epidian at such distance to provide convergent beam.
Elements used:
- Philips 8631 recorder
- LM317
- resistors
- diodes
- heat sink
- collimator (lens from a CD-ROM)
Videos of the device can be found at:
**broken link removed**
Pictures:
And schematic:
Link to original thread (useful attachment) – Laser 225mW z nagrywarki DVD-RW
