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  1. alessnilsen

    My second red laser project (with pics)

    Thanks! :beer:
  2. alessnilsen

    "Laser 301" host breakdown.

    That's some photos of my 532: Got this lens cap out: I used a old laser tube that fits the screw, then it comes off with it: :beer:
  3. alessnilsen

    1A LM317 driver with current selection switch

    From China to Brazil usually takes up to 1 week, but our customs scan is sloooowww!
  4. alessnilsen

    1A LM317 driver with current selection switch

    Yeah! Thanks! I'm looking for a 1,4W 445nm diode OSRAM PL-TB450, but since it will come from China, will take about 2 months to arrive!
  5. alessnilsen

    1A LM317 driver with current selection switch

    NOOOOOOOOOO!!!!!!!!! :cryyy: :cryyy: :cryyy: :spank: :spank: :spank: I KILLED my U$40,00 LD!!!!! I just soldered it with the polarity reversed, now it's a led, don't lase anymore, tried it at 400mA and nothing! :cryyy: :cryyy: :cryyy: I don't know how I done this, I "almost" ever care about...
  6. alessnilsen

    1A LM317 driver with current selection switch

    Great! :yh: Thanks. :beer: Now I'll just wait for the heatsink that must arrive in the next weeks, and them, my first high power blue laser will be complete!
  7. alessnilsen

    1A LM317 driver with current selection switch

    Is best to drive this LD with 1A or 800mA? I think that the difference of output power will be compensated by the longer lifespan. I'll drop the low output from 285mA to 175mA, I see that at 285mA it produces a lot of light, when in this mode I only wan't a pointer. The lasing threshold is at...
  8. alessnilsen

    New here at LPF! :D

    Welcome to LPF! Be safe and have fun! :beer:
  9. alessnilsen

    "Laser 301" host breakdown.

    Probably about 100mW+, is a CD-RW diode driven at 165mA with a boost driver (originally a 405nm laser, but my actually 405nm LD only supports 100mA of current) using a very bad plastic lens (since the light is dim, I can't see the beam defects caused by the lens). I was planning get a low power...
  10. alessnilsen

    LG BD-ROM laser diode

    You're right! The 5.6mm is the 405nm. Can you guess what current should I put into it? I run it with 75mA and 100mA. Is REALLY BRIGHT! For who wanna know the polarity, it use the same as 650nm LD's: ---------------------- I assembled it in my old MDF host without the fan, because at...
  11. alessnilsen

    LG BD-ROM laser diode

    OK. Found too a 5.6mm LD: The window of the 5.6mm LD looks gold. Need help to identify those LD's in order to use it. Thanks :yh:
  12. alessnilsen

    LG BD-ROM laser diode

    Hi! Today I got a BD-RW of unknown model: Anyone knows what laser diode it have?
  13. alessnilsen

    "Laser 301" host breakdown.

    Thanks for the info! That's true! Here the 780nm host: And my 532nm where this joint is more tiny: I can try to take apart the 780nm, is a scratched and ugly host to see how it works! 303/301 is a cute, cheap and interesting host! You say this?
  14. alessnilsen

    "Laser 301" host breakdown.

    Mine looks like a single piece, but I'll definitively not try to take it apart. Lens barrel comes off easy, but the module (with the LD) don't! I need break the glue and force the module down using a hammer.
  15. alessnilsen

    1A LM317 driver with current selection switch

    My mistake, already corrected! Thanks! :beer: :beer: ---------- Another question, Is all OK with the RAW output of my LD? I know that's is multi mode, but it looks a bit "hairy" with spurious emissions around the main beam (you can see the entire diode aperture with little vertical beams)...
  16. alessnilsen

    1A LM317 driver with current selection switch

    Thanks for the advice! I touched a ground wire before touching the LD. Those wireless wrist strap are useless, I'll attach a cord on it! :beer:
  17. alessnilsen

    1A LM317 driver with current selection switch

    Today I received the LD: Now I'm thinking, should I test it now? The heatsink don't arrived yet. ---------- I tested it, 445nm is a beautiful color!
  18. alessnilsen

    "Laser 301" host breakdown.

    I have two lasers with the 303 host, one 780nm and one 532nm and I have some observations to do. The host is a unique piece, I think the module is glued into the host, in the 780nm that originally was 405nm, I only was able to lock the module inside the host using glue. To take the laser...
  19. alessnilsen

    1A LM317 driver with current selection switch

    445nm seems a great color, I only have seen 405nm and is a wonderful color! :yh: I finished mounting all the stuff into the wood board, here is the result: What do you think? It will be like my computer sound amplifier mounted into a MDF board, the manutention is very easy. :whistle:
  20. alessnilsen

    1A LM317 driver with current selection switch

    That's not too bad! :beer: I still waiting for the laser diode + heatsink to arrive, all the other stuff is already assembled. I never seen a 445nm laser.


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