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Recent content by twenglish1

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    Handheld Co2 Laser Project

    Yes, definitely one of my more crazy ideas that's for sure. That flash over incident I mentioned in the original post was exactly that, I completely overlooked the location of the high voltage lead from the power supply being so close to the mounting screw of the terminal strip, i will be...
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    Handheld Co2 Laser Project

    Here's the latest project I have been working on, haven't seen it done very often, a handheld Co2 laser, purchased a 50watt tube, and been working on putting together the control box for it, using a 12v motorcycle battery and a 500watt inverter to power the electronics and laser power supply...
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    Flash Pumped ND:YAG

    Unsure if correct forum, I didn't find any of the 1064nm variety. After originally considering a ruby laser, I ended up purchasing a JK-700 ND:YAG cavity assembly on eBay, and will be doing some experimentation with is unit, manufacturing quality. From my research it seems to be designed for 350...
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    Planning to attempt building a Ruby Laser

    I read through Sam's laser FAQ, lots of good info there. From my understanding the HR mirror needs to be as reflective as possible, and the OC mirror needs to be 70 - 90% reflective at operating wavelength, 694nm in the case of ruby. I also remember reading somewhere that optical cavity length...
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    Planning to attempt building a Ruby Laser

    I will check them out, definitely have time, flash tube is shipping from the ukraine and the ruby rod is shipping from russia so that will probably at least take a month, need to start designing a cavity and then still need to solve the mirror and lense issues, everything is mostly taken care of...
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    Planning to attempt building a Ruby Laser

    Been a while since I have been around here, took a break from lasing for a while, but recently started working on designing and building a hopefully functional flash pumped ruby laser, been experimenting with some large flash lamps, at relatively lower energy levels with regards to a powerful...
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    Beamshots of my 445nm 1+watt handheld

    Thanks! and it took me about 10 mins to assemble and cost was probably about $60 - $70, purchased laser diode and modules from ebay, and driver, heatsink, batteries, and host from survivallaserusa, also built a 2.5 watt since this post, that thing is wicked!
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    445nm Dot Viewing

    I have read about the photochemical damaged caused by the blue light, what are the symptoms of it? and i use safety glasses 98% of the time when using a laser indoor, and when i am not wearing the glasses i never view the dot or beam for more than a couple seconds
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    Just how safe are you behind your laser glasses?

    I am glad i asked, and i will always be skeptical to buy stuff like this from china, finding a propper pair of glasses now, thank you
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    445nm Dot Viewing

    I know that dot viewing of a 2 watt laser is not necessarily the safest but i am sure that everyone has done it at some point in time, i never look at the dot at close range (<10 feet), i always make sure it is on a flat black surface, and never do it for more then a second or too, hopefully...
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    Just how safe are you behind your laser glasses?

    Currently i have ebay glasses from china until i get the money to buy a quality pair, i got two pair for about $20 green lenses, here they are 2pcs 405nm 445nm 450nm Blue 808nm 980nm IR Laser Protection Glasses Goggles OD4 | eBay OD rating is 4+ and the T rating at the 445nm wavelength is 15%
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    Just how safe are you behind your laser glasses?

    I do not have a laser power meter to test them but I did a simple test of shining the laser through them and the dot is reduced to almost nothing, I know that isn't the best test but it does show that they are blocking the majority of the light
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    Just how safe are you behind your laser glasses?

    I purchased a pair of 445nm laser glasses with an OD of 4+ and while wearing them and putting my 1 and 2 watt 445nm lasers next to each other on the wall, the one watt appears white and the two watt still shows as blue, I assume this means less is being blocked, but just how much makes it...
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    Word of Caution on the C6 host

    I only had the problem with one switch and confirmed it was indeed the switch by trying the bad switch on a different host, the company is sending a replacement. It should not have failed within the first few minutes I had it, just wanted to post this as an example of laser safety, always make...
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    Word of Caution on the C6 host

    i have tested the cap on both of my c6 hosts and it will not turn off, it was working fine when i first got it, may try to disassemble and see if i can fix it, when i recieved it the box did appear kinda crushed, something may have gotten knocked loose in shipping




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