Step 3: Laser Stability
This laser uses an Open Can diode I found in a Lite On DVDRW drive, it has a 3 tripple A (AAA) cell battery holder and I have a 2.2 ohm resistor in series with the diode and I measured 310ma laser drive current. I used parts from the local hardware stores and for a colimnating lens I used the assembly on the end of a cheapo laser pointer. The lens is made of clear plastic. There is a switch on the end of and if i click it once it is on, click again it is off.