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FrozenGate by Avery

808NM 150mw 3.2VDC $52.00 USD from AixiZ

V

vist609

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Sep 20, 2007
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Hello all, I am thinking about building an ir laser with this module. I have a couple of questions. Do you think it would be possible to machine some very fine threads onto the od of this module if it was carfully chucked in plastic jaws or a collet? Is the focus that hard to get right? And finally is 150 mw enough burn power with an ir laser. Just to clarify I would not even turn it on without the right goggles.
 





Power is power is power is power......it does not REALLY matter that much what the wavelength is - except for the color to be obliterated when burning ! 150mw is MORE than enough to burn with - but YES....they are VERY difficult to focus properly, and very agravating
:-) I am sure you may be able to use a die to cut the threads into the housing - but I would recommend against using a lathe of any sort to cut on the housing while the diode is in it. The heat generated from friction would most likely murder the diode.
 
Ah I did not take the heat into consideration; obviously I can not use coolant. My thought was to build a housing much like a mag lite with a magnifying lens mounted in the front of the module, by screwing the laser module in and out, I hope to be able to focus it properly. My housing could hold my c-cells, driver board and be drilled for some kind of momentary switch. Please forgive my ignorance. I am just learning and being my first build I don[ch8217]t want to invest too much into it and wind up with scrap. If my housing works I could screw other modules into it kind of a uni laser. Thanks for the ideas.
 
Hey - no need at all to beg ignorance, man ! The entire reason for this forum is for people to learn, and ask questions, and shoot the bull about lasers ! :-) It sounds like you are on the right track - I would work on focusing the lense itself, rather than rotating hte module assembly, though - too many turns in the wrong direction could end up with messed up components (unless I misread your intentions !) Good luck, and post pictures, okay ? I would be very interested in seeing what you come up with !
 
Yea pics plz. I will be trying a IR laser soon as I get the diodes. Hope I do not hurt myself trying to focus it :D
 
I saw those! But I am not ready for a bare diode. My soldering skills are rusty, been a long time since i sat behind a Weller. I think a module will be my best bet for a first build. Then all I need to solder is wires,restors and caps. Later maybe switch out the diode.
 
I bought a 1 watt to-3 from him, it took 3 weeks to get here, but at 1.3 amps its awesome!!the to-5 has the exact same specs as mine does.  get the to-3 if u want a BIG diode, the pins are 1/2 inch apart! Im useing a plug from an old comp case to plug into the diode.  and a 6 ohm resistor with 6 nimh cells running it. I also put a 1000 uf cap accross the circuit BEFORE the switch, and AFTER the resistor so it slows the power on and absorbs spikes. it is after the resistor to prevent the plug from causeing problems with conectivity.

http://www.laserpointerforums.com/forums/YaBB.pl?num=1190514785
http://www.laserpointerforums.com/forums/YaBB.pl?num=1190574395
http://www.laserpointerforums.com/forums/YaBB.pl?num=1190574027

Max
 
Hey I found this on ebay-1 Watt 532nm Crystal Assembly! Just add 808nm no align. (Up for sale is a new Castix crystal assembly designed for a small 1 watt (1000mW) Green DPSS laser. This takes 808nm light in from any 808nm diode and, without alignment, produces 532nm light. Makes 1W @ 532nm with 3.76W 808nm input! In the picture you see two assemblies, you are bidding on ONE.) Am I missing something? So just by mounting this in front of a 808nm diode you have a powerful green laser, depending on the output of the 808nm diode?
 
Ok I have a question for you laser mathematicians. What would the approximate output be if you used a 1000mw 808 diode? Would it be close to 300mw?
 
It should be 1000mw's. I think you are confusing the current it takes to drive the diode vs. the output in mw's. For example, the one on the ebay auction claims an output of 1000mw's, but it takes 1400ma's of current to get the 1000mw's of output power.
 
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