Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

Thanks for supporting LPF!

Avery's Instagram | Open Source Cybersecurity Software by Avery | Considering selling LPF, DM if interested

Recent content by JLSE

  1. JLSE

    Boy Baby Names

    My wife also was in a rush to name both our daughter and son prior to birth. The way I saw it was to wait and meet your child.. I think this is more important if it is your first born. My advice is to compile a list of names you both like then see which one matches them best. The only exception...
  2. JLSE

    AX2002 lowest output

    Just be careful when your input voltage is low, as in, use with 2 Li-ion's in series, no matter how low the vf of the diode. A fully charged li-ion is ~4.2v, but once it drops down around the 3.6v mark, you can blow your diode as they become unstable at this voltage. With 445's its not much...
  3. JLSE

    Scorpion King 7.3W of beam expanded insanity!

    Not much mystery... knife edge is knife edge, how small and how well it performs is the key:shhh:
  4. JLSE

    AX2002 lowest output

    I run lower power diodes at 150mA with no problem. The relationship between input and output voltage can cause issues, but other than that, providing lower current has been no issue for me. *edit Just be careful with diodes that have active ground pins, especially -neg gnd...
  5. JLSE

    Probably the biggest SHG in existence

    The level of engineering in these videos always blows me away :scared:
  6. JLSE

    Laser on Airliner, User Arrested.

    The laserist in me says that is a short trip :whistle:
  7. JLSE

    Scorpion King 7.3W of beam expanded insanity!

    Appreciate it, thanks :beer: This one is already with the buyer unfortunately, and range was not a consideration as much as power was. He needed the most power over 20-30ft. Im working on one now thats designed for range, I will get some footage at a distance.. Regarding the internals of the...
  8. JLSE

    PBS cube, or diode anomaly?? ML501P73

    Makes sense, and overlooked that. I guess playing with too many cubes from sled optics put the confidence of broadband coatings in my mind. I shone a white light and got a purple which looks close to AR for red lol :thinking:
  9. JLSE

    Anyone else having problems with youtube?

    If you're not using firefox, that process shouldnt appear in your list, I didnt notice it was with chrome. With firefox, I just get the odd freeze on YT with FF. Sometimes if you click another video while one is playing it hangs, I find myself ending that process at least once a day, and it...
  10. JLSE

    Correct spherical aberration from DVD-RW lens

    Replicate what you see in the video which will most likely require that you experiment with your individual set of lenses. Work at low power, and you'll figure it out. There are also additional comments below the video where some questions were answered on the lenses used.
  11. JLSE

    Correct spherical aberration from DVD-RW lens

    Most sled optics produce 'rings' when the small asphere is used, ive seen this in many types for a few years. Looking at the first pic you posted... This if im not mistaken is the smaller lens only on the diodes output.. Follow the steps I show in that video, and you will get good power and...
  12. JLSE

    Correct spherical aberration from DVD-RW lens

    If im not mistaken, those rings are part of the lens. To get a decent beam, use that lens with the near flat PCX located under the pickup. I have a tutorial here which is the same idea, obviously lens sizes will vary, but you get the idea :beer: KYMZWu8tPLg
  13. JLSE

    Anyone else having problems with youtube?

    Open your task manager, find plugin-container.exe This is the process I find to be an issue from time to time, and killing it usually helps.. along with a refresh of course. You may have something blocking it also which wont allow video to play. Any new software instals, or or blocked items...
  14. JLSE

    40W+ 445nm laser kit

    I think the heat would be a major contributor to that as well. I had to play around with several designs for 3 x 9mm running at 2.1A and solid optic mounts yet the beam would still come out of alignment even with a lot of mass and active cooling. If no mirrors were involved it would greatly...
  15. JLSE

    40W+ 445nm laser kit

    Interesting design, though im not sure if I would call that 'handheld' as much as I would 'portable' My last build with 3 LD's was so big, I almost called it portable,, but 18 diodes!! Damn thats crazy. Nice work either way :beer:




Top