Recent content by BiasP11

I recently bought an IR diode with high beam divergence (12 x 28 degrees rectangular). Unfortunately, the module I own has a focal length of about two inches and a lens diameter of 1 inch. This means that about half of the light is not focused and instead scatters around inside the module. I...

Length is not a problem; the host can be found here. Heat should not be a problem; I will only run it in pulses. I think the wires on that host look thick enough to handle 4.8A; will it?

Not just as that, a learning experience too. The cockroach was my original inspiration.

Semi-portable cockroach-blaster :P I have a very low tolerance towards cockroaches (plentiful where I live), so I felt that this was the cleanest way to kill them. It is also a learning project for me, as it will help me learn more electronics and optics. It doesn't have to be the laser...

After researching for some time, I found that I need a step-down regulator without much heat loss. I will be using a lithium ion battery (6V,9v,12v, depending on the driver) Laser can take a maximum of 4.8A 1.8V. Can anyone suggest a driver that requires minimal/no heatsinks and can allow...

By the way, are the goggles to protect me from blasting my retinas(direct/reflected), or to prevent me from blinding myself when I shine it at something like paper?

Thanks; I will go for whichever tends to scatter the least (which would be?). Got that covered; safety first! I can build one of these :D Yeah, thanks for all the help; you made a very happy noob out of me!

I'm building a laser that runs in 1 -5 second pulses in a semiautomatic fashion. Goals---------------------------------------------------------- 1. 1000-5000mW for power 2. above power at a range of a few (<10) meters 3. relatively small size (nothing should be more than 4cm x 4cm in width) 4...