A couple small videos, of fun with lasers!
In addition to the laser diode I ‘rescued’ from a DVD burner, I have now got myself a Pulsar from Wicked Lasers and a nameless Greenie from the Bay.
The Pulsar is 150mW and the Greenie is 80mW. I don’t know the wattage of the diode from the DVD burner, but after comparing it to what the Pulsar can do, I am thinking that the DVD diode is in the 100mW range. It is mighty strong.
I still haven’t finished perfecting a collimator for the DVD diode so it’s pretty much a ‘contact’ sport using it. The Pulsar has a long focal length; the beam is about 4mm at the apterture and they tend to be focused to about 20-40 feet, so to do close-up burning, an external lense is required. The Greenie’s beam appears to be less than 1mm at the aperture, it’s very tight and compact, although it does seem to spread a bit at a distance.
Needless to say, proper safety precautions must be taken while working with these devices. After experimenting with these, the typical little red pointers are very sad and anemic.
Note: If the videos do not play properly, please download them and play them off-line. My server does not like MPG files.