Thursday, March 10, 2011
LD1236VL (Sony) High Power AlGalnP Laser Diode Fixed and improved: * Faster burn time, only 1 sec. (with correct focal point) * Added a voltage regulator so that the voltage will be constant even after a 100 burns. * Reduced weight by using 9V battery instead of 4x AAA battery. ( well, the main reason for using a 9V battery is that 4xAAA only gives 5.7V max and if I wanna regulate 5.7V constantly is impossible. The regulator can only provide output voltage not larger then the input voltage. a 9V battery tipically drop from 9.xV (brand new) to 8.xV ( almost exhausted) 2.5V, 250mA, approx 150mW optical output power. Using LM37 voltage and current regulator for input stability. ** when added LD, the V-LD should be about 2.5V! not 5.7 or 5.23! ** the 5.7V is only the circuit output rating, no load ( R-LD ).
http://www.youtube.com/watch?v=tSi69jQpl7E&hl=en
