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They make charts on this stuff you know. A 1W green laser causes permanent eye damage up to 150m. Now go see the manual on the US Army 9mm pistol and look at the mechanical effective range. It's 50m. Your comment "dazzling with a 1W multimode laser at short range is possible" is absurdly...

It completely depends on the speed of your aim. It takes only a matter of miliseconds for a 1W green laser to cause permanent injury at 100 metres so any type of hit on the attacker's eye would change his world instantly and would make it impossible to aim at anything with the extreme flash...

Hi, I was referred by DTR's Laser Shop to inquire about a custom host for the 445nm 9mm Diode In Copper Module W/2.4A X-Drive & G-2 Glass Lens. I just have 2 requirements for the host. 1. Momentary push button switch rather than the usual latching switch. 2. Switch placement on side of hose...

Hi again :) What is the plastic piece that I must take off, is it on the front of the housing of on the rear side where the pins/leads are? I attached a few photos. See the second photo is this correct what I have removed there? Or should I remove something from the back as seen in the 3rd...

Cool thanks for the advice. I tried running it with a driver and it worked great. It could only power 1 diode at a time though. Are you very sure the solar panel can safely power the diode without a driver? If so I will try it and hopefully this is more efficient than using a driver allowing the...

Oh yes I recognize that pattern. Yeah I saw that too when I tried focusing it to a point with a collimating lens. Thankfully my application does not use that kind of focus and I don't get that effect with the lens I'm using I have all the light focused close to the lens. However the power loss...

I see, the voltage drop is occurring further down the current path where the leads of the volt meter panel connect to. I didn't understand enough about electricity when putting this together. My thinking was that if the wire doesn't heat up at all during use, then it's plenty thick enough to...

Ok thanks for the advice. When I get another one of these diodes then I'll try and do that. I think keeping under 10 sec duty cycle should be alright still with just the housing, they don't seem to get warm until 20 seconds. When you mention the beam being split by the diffraction grating. The...

I have a red laser with lm317 driver and would like to try and run it from a solar panel. It is not a very big panel only rated for 4W but on a sunny day it puts out up to 21V. I normally only use this laser with 8.4V max. That is why I didn't want to try using it yet before seeking a bit of...

I'm using steel to make the connection that puts the cells in series, all connections are very solid. The voltage is measured from the cells as in the same positive and negative terminals that the drivers connect to for power. Yeah it is measured through wiring. In the 2nd photo I uploaded you...

Yeah I actually happen to own a pair of AW IMR Li-Mn cells. I bought them from the seller seller"vapsol-australia" with 99.4% positive feedback. I tested them in my laser that draws 2 amps and the voltage sag under load was 1.2V rather than 1.5V for the "panasonic". Slightly better but not so...

They actually didn't look like this when I purchased them. They were black and had a protection circuit. I had to remove the protection circuit to make them fit into this device as well as my laser pointer which is in a CreeC6 host. And to remove the protection circuit I had to remove the outer...

Yeah its in a metal housing so I'm not sure exactly what the bare diode looks like. Here are a couple of pics though of the assembly. Also is that metal housing going to provide much heat sinking?

Ok thanks so much. That's been some great information that I couldn't find after hours of searching. Just a couple more things. Ok so I'm very interested in trying to use the infrared/red simultaneously. Perhaps I'll build another device with less diodes that utilizes this ability. So, 1) Is...

I see. So based on that I must be pushing it close to its limit already. This brings about a few more questions for me. 1) Do you think if I go to 450mA for example the light output will be significantly greater, or since I'm close to the limit, won't there be much of an increase in output for...

Yeah sure here is what it looks like and you can also see the voltage readings. The volt meter panel is connected directly to the batteries via a momentary switch.

I'm measuring the voltage directly from the batteries. So if it is correct then 750mΩ is 375mΩ per cell right? Then would this mean that these cells are unhealthy since its more than double that of the 150mΩ you mentioned?

They are both very new and high quality Panasonic cells that I purchased in store from Battery World. How much should the voltage sag under 2 amps load? Note that I have never had any issues with these cells, they have always worked perfectly, have consistently great battery life, they discharge...

Thanks very much for your reply. What about the voltage under load. For example when the battery voltage is 7.4V without load, then under load the voltage is only 5.9V. Will this then be reducing the performance of the laser diodes? Note that I do believe the minimum voltage for this driver is...

I would like to know if the following is true. I have a laser using an LM317 based driver. The laser has multiple diodes and driver for each diode. Total current draw is 2A and when the batteries are fully charged they give 8.4V (2 Li-ions in series). Now I have read in a couple of different...