Recent content by Arilou

fenix-store
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    Laser Pointer that Uses AAA or AA Batteries.

    They will allow it as long as the seller claims it's 5 mW. Of course, I don't believe that laser is really only 5 mW.
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    Can a decent laser pointer deter squirrels?

    Those ultrasonic repellents annoy people more than rodents.
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    Can a decent laser pointer deter squirrels?

    The air gun would only work if you actually shoot the sqirrels. The squirrels can see the laser, and they can see me coming. They just try to hide in the trashcans and wait for me to go away.
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    Can a decent laser pointer deter squirrels?

    The squirrels digging in the trash can be quite a nuisance. I've tried scaring them off with lasers and it was not effective. The squirrels saw the light, but just crouched down as if they were hoping I wouldn't see them.
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    Tmack customs

    I've got a 450 nm and a 405 nm from Tmack. The 405 (violet) focuses to a smaller spot, so it burns well, despite being less powerful than the blue. How much would a cypress (copper) host cost? It might be nice to have something smaller than the C11. Do you have any side-by-side pics for size...
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    Laser Help Needed - TV show

    UV will cause florescence and will be visible. If you want the beam to be invisible, you will have to use IR. Some video cameras may be sensitive to the IR light though, so if you're doing this for a TV show, you'll want to check what it looks like on camera before you film it.
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    Tmack customs

    The lens on my c11 came loose from the focus adapter, so now it doesn't focus properly when I turn it. What is the best way to fix this?
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    Tmack customs

    Search for 'laser destroys camera' on youtube. In some cases it will leave a few dead pixels in the image, in other cases it causes the ccd to shatter, completely destroying it. Be careful doing this, because the optics can reflect some of the light back at you.
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    laser noob safety question

    So the seller claims this is 350mA @ 3.7V. Assuming that is true, with typical components that would give about 50 mW output. Certainly more than 5 mW. You'll be able to see the beam pretty easily at night. Is it safe? Not if you get it directly in your eye.
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    Tmack customs

    Laser meters aren't all that accurate. Thermal meters can be affected by body heat, air conditioning, and ambient light. Photodiode meters are less sensitive to heat, but tend to have varying sensitivity by wavelength, which make them not entirely accurate over the visible spectrum. That...
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    is my laser pointer over spec

    That is way more than 5 mW... That's at least a few hundred mW.
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    Tmack customs

    How about not putting it in the freezer like you did before? LOL Obviously having the diode exposed isn't going to immediately kill it. But those things are sealed for a reason. There is some kind of photochemical reaction that is known to occur with GaN and water. So if you got water in...
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    Tmack customs

    I don't know how risky it actually is, but it is reportedly bad if the diode gets wet.
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    Tmack customs

    Be careful. The galium nitride crystal can be damaged if exposed to moisture. It should be encased in plastic, but if you break the seal humidity will eventually destroy it.
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    Tmack customs

    Great. Have you done any temperature measurements with the new heatsinking? How long is it safe to run?
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