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paul1598419 can you contact me in private please? I can not send you any message

Hi guys, help me if im wrong, Class I and II laser no need glasses = under 5mw. Class III laser yes = over 5mw. Now i know how to choose the wavelength, but i don't know how to choose the OD safety level, because i don't know how to compare the laser output and power to the right glasses... So...

Anyway this circuit is good even for red lasers i guess.

For a driver connected to an oclaro 638nm 0.8A working current is necessary to use a capacitor? And what about the 1N4001 on the picture?

Thanks you guys. I think to understand now. Is there anybody that can help me when i have some doubth? I'm also trying to make by myself these drivers. I'm sorry if i'm asking a lot of questions, the problem is that it is very hard for me to learn because most of these informations are just in...

It's written 5V. But the litium battery is just 3.7 V. Is it enought to run the diode? Or i should use an host with 2 litium 3.7 and add some resistor?

Hi guys, i found a neje 1500 violet cheap laser module on ebay, as you can see on the picture 1. This is for engraving, buy i would like to assembly on my perzonalizzed host, as you can see on the picture 2. Can someone help me to find the right driver for this laser? Just in case i receive the...

Untill today i just bought drivers to connect to my diodes. But now, i'm trying to learn how to build it by myself using cheapest components that i can easly find online (ebay or amazon). Is there anyone expert who knows exactly how to build a laser driver step by step and could kindly help me...

You are welcome! I want to add something that for most of people can appear as "a bulls***", but im for my own opinion as everybody has a different opinion, and i think that laser pointers over 500 mw of power should be treat as weapons. I don't know where you exactly came from, but most of USA...

I was a beginner before, but i made my first 2 lasers (5mw and 250 mw, using a DVD hp RW 16x). And both are working very well. My next step is to make a green laser, and actually the most powerfull green laser diode that i found is the NDG7475 1.3W 520nm, but before start im woundering if there...

Hi i'm Aldo from Italy, I'm sorry if my english is not good, but i think it's enought that you can still understand the meaning of my sentences. Anyway, I've been passionate about lasers for 5 years but i never had the possibility to buy something powerfull, because lasers over 5 mw are already...