Sounds like they could work well on regulated power though.. i've ordered a 50 mW to find out what it can do.BrewCityMusic said:As to the lasers themselves, hey - they're really REALLY low-cost and bottom line is they work very well for the price point, although I have noticed that yes, the batteries you use DO make a big difference (as they get low, the lasers will come on strong and drop significantly as to output within a second or so) ...
What I do is find a piece of red translucent plastic or glass. If it is the correct type it will block 100% of the 532nm light, leaving only IR. Then shine the IR spot on the wall or a piece of paper (or your LPM). One thing valuable is to get your tape measure and determine the divergence of the IR beam after a certain distance. In some of my modules it is much greater than the green divergence for the same distance. One IR spot size was approx. 4 inches (~10cm) at 15 feet. So that will give you an idea of where eyes could be at risk getting near the beam. What I do is just make sure my eyes never even get in the vicinity of a laser beam. A little dust or smoke/steam works wonders for seeing a great looking beam from a distance.919jack said:One question: I am sure there is a good chance the 30mW (and maybe the 5) is leaking some IR. Is there a good way to test for this without equipment? I tried viewing the 30mW laser (off-center of course) with my digital camera LCD, and all I saw was green no halos or anything. Anyone have other ideas for "seeing" or testing for IR, without equipment?
My thought too.. i expect the lasers to be similar if not identical to the range DX carries - you can get lucky with them and have a nice product for little money, or a rather crappy laser and lose a few bucks.Crossfire said:For 33 bones, let's see what's under the hood at LED Shoppe.