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OD means Optical density, it shows how good the goggles block light of a certain wavelength. In your case, you goggles would be very effective at UVA light and violet(190-420nm), very strong at green, very good at near infrared(780-840) and very good over many other IR ranges. These will be...

Re: Lava Micro FlexDrive Driver (lavadrive2) fits Nah, it is great that you are always helpful! May I ask what happend to your eyes? I read that you had a surgery.... Rechargable and protected CR123A won´t fit my sonar II barrel... So I have cr123a primarys on the way to my home. I don´t know...

Re: Lava Micro FlexDrive Driver (lavadrive2) fits Argh. Sorry for the sloppy formulation :) Of course I know that It is a constant current source and I know that you can not set the voltage with a flexdrive. Why didn´t you just say, yes, It would xD But thanks anyway ;D Going to use 2 CR123a...

Re: Lava Micro FlexDrive Driver (lavadrive2) fits I have a few questions, the current that was set remains the same at all times, given the batterys can handle it? I can set the current at 5 V and if I use 2.7 V it would remain the same, right) Also, what is the best way to set the current...

I don´t think that he wants to build something like a cnc cutting machine, more a red burner ;D So search around on the forums, and use the information that is already posted in this thead. If you are going to build a laser cutter, the most suitable wavelength depends on the absorbance(?) of...

Re: What do you call the violet 405nm laser in gen perhaps because there was no competitor with a very cool name. So no need to invent one :)

Re: FS: igors 110mw BR laser AND CNI 20MW BR FOR O Did you forgot to mention the amount of money that you want? ArRaY

Re: FS: 65mW 803T Box build You see? That expresses my need to get a meter for my own.

Re: FS: 65mW 803T Box build Wasn´t the laserbee LPM the meter were you had to change the settings for each different wavelength you are measuring? IIRC, it does not have any 405 nm setting, and you have to use a mutiplier on the 473 setting... Could be wrong, though. ArRaY *edit: pretty sure...

Forgot to say, if your going to measure current directly, you have to measure it without the resistor. It is there in the first place, to eliminate the need to create a break in the circuitry, to measure mA as you can measure mV across it and then calculate the current. ArRaY

Let me re-state, that the formula is I=U/R. That means, if you use a 3 ohm resistor, you get I=V/3. Using your values, you can solve it. I=140/3 = 46,66666..... Again, it is not clear what you are measuring and what scale you are using. If you want to measure the current going into your diode...

Awesome! What are you waiting for? Get some more pictures! It literally shouts wallpaper... Very nice find. ArRaY

If they are airsoft guns, a 50 mW sight would be dangerous, unless used for target practice. ArRaY

Re: 5-400 mw green laser pointer again?

Re: OMG the new Firefox SUCKS!  (HELP!) Period.

What is it, then? Just beeing curious. ArRaY

The flex´s maximum input is 6V, hence the need for a silicon diode to drop the current of 2 full cr123a 3V batterys, which is about 6.4 V at full charge... ArRaY

Keep in mind that you measure across a 1k ohm resistor, not a 1 ohm one. I=U/R. Also, you gotta measure the voltage across the resistor. Couldn´t see from you post what you where measuring b/c you seem to be mixing up mV and mA... ArRaY

You know you want it... We all do. How expencive would it be to get a 3 phase supply for your house? ArRaY

Why do you guys always complain about 3 phase? Is it not very common in america? We have on in the garage and in the workshop, as well as in the kitchen, for the oven... ArRaY