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Recent content by fedcas

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    How is one supposed to use safety goggles?

    AH! Now I get it... that's the point I was missing! :p I was making the wrong assumption that the remaining light was so low to be completely invisible... also the fluorescence part is interesting, do you mean the dot you see has a different color? now it makes sense! ;) didn't think about...
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    How is one supposed to use safety goggles?

    Hello, Of course I have read the sticky threads several times and I have been using low powered (2xAAA) laser pointers for years quite responsibly (I mean focusing on these kind of issues https://laserpointerforums.com/f75/laser-safety-checklist-aware-your-environment-97407.html ) even though...
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    Broken 532nm DPSS Laser Pointer

    yes, laser light from laser diodes is polarized so its angular position is important, I've tried several times in different poitions but nothing is emitted. So I guess I need a new crystal group... thanks for your info about the DIY thread, I've paused the whole laser thing because i'm quite...
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    Broken 532nm DPSS Laser Pointer

    I've found this interesting link: DPM Crystals - Casix I've also opened the optic group and what I've found is a cystal similar to those in the above link, ie nd:yvo4 and ktp coupled together: at a visual analysis the crystal is ok: no burns or other strange things and it appears clear...
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    Broken 532nm DPSS Laser Pointer

    yes, the IR spot is normal. Also comparing to another IR diode I have, the intensity is similar. I've tried several times but almost nothing exits from the optic group. Just a little bit of ir light that is visible only pointing the camera directly inside the output hole. oh, that's...
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    Broken 532nm DPSS Laser Pointer

    I've dismantle it and tested with a camera sensible to IR light.
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    Broken 532nm DPSS Laser Pointer

    Hi guys, I just registered to this interesting forum ;) I know that there is a similar thread just next to this but I'll open another since my problem is different: in my case the diode is working. Anyway, starting from the beginning: some time ago I bought a cheap 5mw laser pointer on ebay. I...




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