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  1. joshshermannn1

    First 9mm build 1.8A

    Good build. +1 Beamshots pls
  2. joshshermannn1

    Need a protective glass for diode that does not decrease intensity.

    I don't know a lot about the properties of quartz; I would venture a guess the closer to UV you get, the more efficiency. If you can't afford a UV laser, I don't think a quartz lens would be an option either. They are near impossible to come by, and you might have to get one custom made. I don't...
  3. joshshermannn1

    Need a protective glass for diode that does not decrease intensity.

    A quote from wikipedia about fused quarts, *also note that there are many different types of quarts. "Fused quartz is manufactured by fusing (melting) naturally occurring quartz crystals of high purity at approximately 2000 °C, using either an electrically heated furnace (electrically fused) or...
  4. joshshermannn1

    Need a protective glass for diode that does not decrease intensity.

    If there's a box that is heated to 5000 degrees Fahrenheit, a 1400mw 445nm laser will literally do nothing. I can't think of any other reason to use 445nm laser besides burning at near room temperature; it has no niche, any niche it could fill, another wavelength would fill better. Also, as for...
  5. joshshermannn1

    Tonyt's random prize giveaway!!

    Congrats Laik :D and shipping wont be bad either
  6. joshshermannn1

    Tonyt's random prize giveaway!!

    Post #2 :D
  7. joshshermannn1

    Tonyt's random prize giveaway!!

    Very generous Tonyt. :) +1 post #1
  8. joshshermannn1

    Lenses

    The little spring goes between the lens and heatsink for resistance. The big silver thing is where you would put your diode, i.e a module. I can't tell what the lenses are by this picture, can you post one showing the color that you see in each?
  9. joshshermannn1

    Artic 1,4W problem

    I'm not sure I understand the issue, are you unhappy about the wings on the dot? Or just that it's not a clean dot? You could try getting another lens, or even cleaning the diode window. I would rather just live with the laser as is, rather than risk damaging or worsening the diode windows's or...
  10. joshshermannn1

    What's your education?

    @Bionic-Badger, great advice. But If having a degree is the important part, why is it ones ability to learn, not what one has learned? It seems that if anything in college measures ones ability and competence, it would be their grades, not the fact that they have a degree. Especially since many...
  11. joshshermannn1

    Help 500mw Green Laser Dim Red Light

    I did not tell him to look down the end to see green. I said if you looked at the crystal, i.e from above, like I said TOP VIEW, you could see green in there. If you looked down the aperture you could only see a future of blindness ;) I also did not say IR isn't very powerful. Please read...
  12. joshshermannn1

    Help 500mw Green Laser Dim Red Light

    @jcranmer I don't quite understand, why would the IR jump up in power once the green stopped lasing? It seems like the amount of IR should stay constant, or at least go down to me. The KTP is probably the thing that is out of place; It seems most of the light that should be going out of the...
  13. joshshermannn1

    Help 500mw Green Laser Dim Red Light

    Yep, everything has to stay somewhere in the system. :D If you were to look inside the laser, the top view of the crystals, you would see green light in there.
  14. joshshermannn1

    Help 500mw Green Laser Dim Red Light

    It would, except the green light is being reflected somewhere else, i.e inside the host. Again, I'm only half sure this is right :D
  15. joshshermannn1

    Help 500mw Green Laser Dim Red Light

    @LivinLoud, Actually it's probably safer than it was previously, because the IR was always there, only now you can see it. The laser could be more powerful than before, but only if the crystal were to be removed. The IR is still hitting the crystal, but at an angle that doesn't reflect well...
  16. joshshermannn1

    Help 500mw Green Laser Dim Red Light

    You should be equally careful with the 532nm as you should with the IR wavelengths ;) If you see DPSS in a laser's description, get IR glasses. E.g 589,532nm, 593.5, etc If the crystal is moved out of place or cracked, it's hard to move back into place or repair; I wouldn't be very hopeful.
  17. joshshermannn1

    Playing with a 1.5w Blue laser and my eye hurts

    I would say about about 15 meters. I've never really measured it, so I can't give you an accurate answer. Comparing LEDs and lasers is like comparing apples to oranges, even if we're talking about the reflection. The power density of the laser is very different, and 445nm specifically is a...
  18. joshshermannn1

    Playing with a 1.5w Blue laser and my eye hurts

    Yep @ LivinLoud^ If its cloudy its cloud it doesn't matter, just watch our for planes. Lasers are different from other kind of lights, they have a higher power density. [they are not actually coherent after about a few centimeters though] From WikiPedia: "Another mechanism is photochemical...
  19. joshshermannn1

    Playing with a 1.5w Blue laser and my eye hurts

    http://laserpointerforums.com/f53/hit-eye-1000mw-445nm-blue-laser-69469.html Quote from Xoul "Take-aways: Rushing to the ER is not always the best option. It's better to see a specialist that can actually help you. The total outcome of going to 2 ERs was having to pay about $1000 (this is after...
  20. joshshermannn1

    Big hey from the Mile High City

    Welcome to the forum! +1 for reading the stickies before you post :D




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