Laser diode driver with controlled current
The laser diode used ADL-65055TL. Tested, and works fine.
Beam divergence: 9/28
Operating current: 25mA
Power: 5mW
Wavelength: 645-660nm
To increase the beam length, need to use:
1. Double convex lense
2. Planar - convex lense.
Should give us around 5m.