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Recent content by DCS

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    Thorlabs is cool!

    Hey i was cruising the boards again tonite and i just realized you were giving me shit about the good deal thing.  Man, i must have been low on caffeine earlier...   Let me try again...   I shopped 904nm 10mw diodes at lasermate, frankfurt, aixiz, roithner and a few other manufacturers, plus...
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    Laser Tricks/Hacks?!

    I'm pretty sure the traffic light gizmo is based on a coded strobe sequence. I don't think it's IR. There's probably an associated event log. Theoretically, a traffic computer guy could correlate the event log with video from a security camera. A few iterations would ID any vehicle regularly...
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    Thorlabs is cool!

    Don't get me wrong - I love Aixiz. They are good people, and they will actually take an interest in your project if you talk with them about it. They have a good selection of modules, and you can buy a glass colimator in a threaded housing for a couple of bucks. On the other hand, the best...
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    Thorlabs is cool!

    I bought some low power IR diodes from thorlabs.com. I had a question about availability, so I called instead of ordering online. Great people there! I got my diodes, plus a bunch of freebies: shipping upgrade, two Lab-snack paks (boxes of various junk food) and a t-shirt! ;D I'll be buying...
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    Questions about this laser diode

    Hi thanks for the reply.   The diode in the picture is the red diode.  All the measurements are for the red diode.   Yes i want to use the board for the new IR laser.   The specs for the new IR diode are 904nm 10mw, operating current  = 50 to 70mA max, forward voltage =  2.0 to 2.5 max.  ...
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    Questions about this laser diode

    Let me try again.   I've got a red laser i want to convert to IR.   I measured some voltages and current with the laser on.  Then i took it apart.   Here's the top of the board.  It has a pot.   I arbitrarily numbered the pin-holes to help with my questions. Here's the bottom of the...
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    mini driver

    IgorT - got a link to those batteries?
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    Questions about this laser diode

    Subject - G&P 467A chinese airsoft red lasersight Red wire is +3.27v from the main circuit board. I pried up the little diode board to look under it. The diode has 3 pins, all sticking up through solder points on the edge of the board. The red wire connects to Pin 2, which is also common...
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    What's a good soldering iron for SMT work?

    I have a Weller SP23 with a few tips. Generally, I do pretty good with it. I need to mod a few driver / circuit boards, so I'm in the market for an inexpensive ~15W~ fine-tip iron. I'm not looking to buy a metcal or any variable power iron. Just a simple, inexpensive fine-tip iron. If it has...
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    ir help

    I hacked a green laser about a month ago, and posted here for help. What I've learned here and from other boards is echoed by flogged in the post above this one. IR pumps for green lasers are multi-mode, and aren't really meant to be collimated. Single-lens collimated IR lasers are commonly...
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    Laser+LED hack - help me find IR replacements

    I still need help with the laser. Can anyone tell me steps for disassembling the laser above without destroying it? My assumption would be: 1 - pick the glue off the rear board 2 - pick the glue off the collimator 3 - remove the collimator 4 - press the diode backwards to get the laser out of...
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    Laser+LED hack - help me find IR replacements

    FML - thanks! Here's my newb questions: 1 - the DX IR LED works well in my Elly mod flashlights. They run on one 1.5v battery. However, this PEQ Cree flashlight receives 3v from the control board inside the PEQ. What will happen if I install the DX LED on the Cree plate and supply 3v to it...
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    ir help

    Your (green) optics are well suited for collimating a green laser, but not for collimating the output from the IR pump once you remove the crystal. My understanding: If the laser had separate expander and collimating lenses, they would have to relocated closer to the IR diode to collimate it...
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    Laser+LED hack - help me find IR replacements

    flogged - thanks for the links. LOTS of choices there. Zom-B - yep, this is a red laser. Thanks for the heads-up though. Always a good idea to be sure that newbs don't fry their eyes with an IR pump they ripped from a green laser. Woo - thanks! Here's a pic of the DX 4669 next to the cree...
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    Laser+LED hack - help me find IR replacements

    I disassembled a PEQ Red Laser / Cree white Led combo made by G&P. It runs on 3 AA batteries.  It has four modes:  off, laser-only, laser & led, led-only. The laser is powered by 4.5 volts in laser-only mode. The led is powered by 3 volts in led-only mode. Both the laser and led receive 3...


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