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

How to Register on LPF | LPF Donations

Search results

  1. crazyhobo

    488nm GH04850B2G

    I've picked up a 488nm GH04850B2G build which is great, but I think it has the G2 lens, and definitely has the large rectangle artifact on one side of the spot. Would swapping the lens for the G8 totally remove that artifact? Also is 275ma still the agreed upon safe current?
  2. crazyhobo

    Glass lens swap for DPSS green!

    I HATE plastic lenses. They are nearly impossible to clean or even handle without becoming scratched. This had become the case with my "Cyber" 100mw 532nm green laser, so I bought some glass lenses from Laserlands on eBay to see if they would be more durable. 10x Double Concave Glass Lens F...
  3. crazyhobo

    Is there a US seller for DPSS green optics?

    I need a collimating lens for 532 DPSS green. I found some on eBay but they are in China. I know I can buy a $5 eBay green pen and harvest the lens but I really need a bare lens. Does anyone know of a US seller? :thanks: Edit - I tried an Aixiz lens but the beam was too thin and as a result had...
  4. crazyhobo

    Simple mod to keep you laser from shorting out.

    I noticed that my "Cyber" green laser didn't have the little foam ring around the contact spring that I am used to seeing. I was concerned because the spring is quite long, compresses considerably when a battery is installed, and the wall of the battery compartment is unpainted. If the spring...
  5. crazyhobo

    0.32 mRad DPSS 532nm green!

    This defies all that I've ever seen. I glued a second expanding lens in my "Cyber" 532 100mw green laser to reduce divergence. I did this 2 years ago to another laser (http://laserpointerforums.com/f42/lazerer-classic-150-divergence-cut-half-69924.html) but I had even better results this time...
  6. crazyhobo

    WTB: 520 green 50-100mw from US seller

    Getting married very soon so this may be my last chance to buy something with money that is solely mine. :crackup: If nobody has one they are willing to part with I am going to get the 50mw 520 from laserbtb. Thought I'd check here first as I hate waiting for things to arrive from China...
  7. crazyhobo

    Laserbtb HL-520 divergence?

    I see that there was a group buy of these a while back, and that recipients reported "very low" divergence, but I have not been able to find where anyone actually measured it. Divergence is my favorite thing about lasers. :D Can anyone satisfy my curiosity? :beer:
  8. crazyhobo

    Super cheap beam expander!

    Take a Brunton 7x18 pocket monocular and break out the prisms (they absorb a TON of light) and relocate the smaller lens to the outside and glue it in place. (This is necessary to make it focus properly without the prisms.) The image will now be inverted, but that won't matter unless you wanted...
  9. crazyhobo

    How to deal with Westboro "Baptist" "Church"

    Westboro "Baptist" "Church" came to a town near where I live this morning. I had waited a long time for that. I had about a week to think of something LEGAL (LOL) that I could do to them. This is what I came up with. How to deal with Westboro "Baptist" "Church" (Oxford, MS 5/18/2013) - YouTube
  10. crazyhobo

    Interesting grating from an LCD screen

    I replaced the LCD screen on my fiancee's camera and decided to dissect the broken one. On both sides I found a clear sheet that generated a line when I shined a laser through it - one vertical and the other horizontal. Shining a laser through both blocks the beam entirely, so I think this is...
  11. crazyhobo

    SOLD Stainless Steel 1500mw 445nm SH-032

    Price drop! I wasn't planning on selling this, but several unexpected expenses have come up, so this needs a new home. Yobresal build Aurora SH-032 stainless steel host M-140 diode 3 element glass lens 1.62A Mohgasm driver (heavily heatsinked) Aluminum heatisink Custom focus ring Includes...
  12. crazyhobo

    10X 532nm Chrome Pen Laser from Cajun Lasers

    This is a mini review of the 10X 532nm chrome pen laser from Cajun Lasers. Link: 10X 532nm chrome pen laser [532PN50] - $39.99 : Cajunlasers Store Pics at the bottom! First off Clif is great to deal with. I had a question before ordering and he responded to my email within a matter of hours...
  13. crazyhobo

    Lazerer charger tip

    The charger that Lazerer sells has an LED that gradually changes from red to green as the battery is charging. I just noticed that even though it looked like it had turned green, there was still a tiny amount of red being mixed in. If you break the connection it goes to pure green. SO - before...
  14. crazyhobo

    1.4A 445 battery life

    How long should I expect the batteries to last in my 1.4A 445? They are the blue TrustFire 16340's that say 880 mah. I seem to only be getting 10 minutes out of them.
  15. crazyhobo

    Multiple diodes and one lens? Is it possible?

    Would it be possible to de-can two 445 diodes and line up the emitters to make one long one and have one lens to collimate them into one beam? Or does the light even come out at that angle? :thinking:
  16. crazyhobo

    (SOLD) LZPL - 650nm 200mW Focusable Red Laser Pointer Waterproof

    I am selling this laser: LZPL - 650nm 200mW Focusable Red Laser Pointer Waterproof It has been used less than 5 minutes. The only issue is the clicky. It doesn't want to turn off on the first try. It helps if you press it hard past the point where it makes the click sound. It's easy to turn on...
  17. crazyhobo

    Low Divergence Modified Lazerer Classic 150 532nm

    I hate do sell this, but I never use it. I bought it to take to my GF's over New Years. We had a blast pointing at water towers MILES away from a dock across a bay. It served it's purpose, so now it's time for someone else to enjoy it. I glued a second expansion lens on top of the first to...
  18. crazyhobo

    Lazerer Classic 150 Divergence Cut in HALF!!!

    I added a second expanding lens from a broken laser and the beam is now twice as wide and diverges half as much! The only other difference is that the point at which the beam is focused to infinity is now when the focusing knob is about halfway out instead of all the way in. I like that better...
  19. crazyhobo

    Which lens determines beam width in green DPSS?

    Is it the the focusing lens between the diode and the crystal set or the expanding lens between the crystal set and the collimating lens? I put the expanding lens from a dead new wish pen that had a wide beam with great divergence in my Lazerer Classic 150 that has a really thin ( <1mm ) beam to...
  20. crazyhobo

    What is the beam diameter of your green Lazerer?

    I am still waiting for my Classic 150 to be repaired/replaced, but I was wondering if anyone could chime in on what they are measuring for beam diameter is at the aperture. Mine was ~1mm. Knowing that beam diameter and divergence are inversely related, I am confused as to how the handful of...


Back
Top