HOST: HomeDepot flashlight (2-pack for $5, so $2.5)
HEATSINK: Mohrenberg ($5)
LENS: Aixiz 650nm coated glass ($6)
DIODE: LOC ($10)
DRIVER: LD1117 (70c), two 3 Ohm resistors (20c)
I: 415mA (priceless)
BATT: 2x10440 in series ($5)
MODULE: Aixiz ($2.5)
The HD 2-pack flashlights come in red and...
Here is a build I just made using a PHR diode. There is a pot for controlling the current: 30-125mA. The unit is powered by a 9V AC adapter. A mini-tripod is used for mounting the laser.
Total Cost $47:
$10 PHR sled
$5 Moh heatsink
$0.2 4x diodes
Bought a 40mW LPM verified 532nm pointer from this thread. It is powered by a single AAA battery, and came with a AAA primary from the seller. The laser has an impressive visible beam, the dot is TEM00, little to no splash. Typical run-time is ~5m, see the rest of this post for more info.
This is my very first successful portable laser build! There are links in my signature (the letters 'DIY' are the links) to the albums. I thought I'd post it up in a thread and have some more info. A huge thanx to everyone on #laserchat and here who helped me get this working!:beer:
Hellowski, laserists! My name is Max. I was born and raised in Ukraine, but have now spent the majority of my life in the USA. I work as a software engineer for a corporation that sells products I would not use at home. I was in Virginia Tech class of 2004, Go Hokies! Some other stuff I'm...
Well, I am up to 5 dead diodes now in my quest to learn how to build lasers... I appologize in advance for the long post, but I would greatly appreciate any help in troubleshooting my mistakes.
Connected LOC #1, turn on, very dim TEM02 dot. Took the head off, connected DMM in series with LD...
I plan on eventually making drivers for lasers, but I haven't ordered a single "laser" part yet:) (well, except those 5 Mohrengberg heatsinks, but they were cheap) What I'm doing now is making simple power supplies using a breadboard and trying them out on equally make-shift test-loads. I have...