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  1. CoherentRays

    CLOSED Group Buy for LPC-815, SF-AW210, PHR-803T, and GBW-H10L - Cheap!

    If you get this going again for anywhere near those prices, I'd definitely take 5 (maybe 10) LPC-815 sleds. A month ago I didn't know enough about building to take advantage of this buy, but I'm ready now. Ed
  2. CoherentRays

    The Scale of the Universe

    And, if trying to grasp the range of scale demonstrated there doesn't sufficiently boggle your mind, add the concept of quantum entanglement whereby the change in state of one particle in the universe can instantly (i.e. faster than the speed of light) effect the state of another particle in the...
  3. CoherentRays

    Use goggles/glasses

    That's sad. After all the advice and pleading that was directed to you back in June about the need for appropriately rated safety goggles/glasses, I'm sorry that you came to this point. But thanks for warning other beginning laserists about the danger of using lasers without proper eye...
  4. CoherentRays

    handy laser color chart

    Thanks for those. :bowdown: The top one (Visablespectrum-2.jpg) is the one I have been looking for for some time now. :thanks: Ed
  5. CoherentRays

    Building an Infrared Laser

    There are a lot of kits listed in the laser pro section and the for sale section. Reading those listings carefully will help you to understand what's needed for a successful build. I'm no build expert--I'm still learning what is needed myself and I'm sure other experts can jump in with more...
  6. CoherentRays

    Building an Infrared Laser

    This is extremely dangerous. The fact that you can look at a 300 mW infrared dot and barely see it could lead you to damage your retinas without any immediate visual warning. The infrared, which you can't see, can damage your eyes without any warning to cause you to blink or shut your eyelids...
  7. CoherentRays

    1-1.2 watt 445nm lasers

    Re: 1-1.2 watt 445nm lasers CHEAP $180 PM and payment sent. :D Ed
  8. CoherentRays

    GB#1 COMPLETED! JETLASERS;)-DELIVERED-WOW!-250 mWs OVERSPEC average+100mWs

    Re: GB#1 IS CLOSED!! JETLASERS THEY ARE ON THE WAY!! 250 mWs all overspec free ext Got mine today. Kudos to both Len and Gray :thanks: for their work to make this buy successful. I'll be getting a review up as soon as I can. Things are a little hectic here right now. That PL-C sure is...
  9. CoherentRays

    Hey guys names jakeGt and am new to the site!

    Welcome aboard and the best advice I can think of is don't use your laser indoors without the appropriate goggles. :) Ed
  10. CoherentRays

    5 Watt Laser Power Meter

    My orange goggles are Eagle Pair, a cheapie model ($30 US) that I got off ebay. They are stamped 200-540 nm OD > 4 CE. I can barely see the focused dot of my 22 mW greenie (532 nm) with the goggles and the focused dot of my 1200 mW yorbesal 445 nm laser is very comfortable to look at, even...
  11. CoherentRays

    GB#1 COMPLETED! JETLASERS;)-DELIVERED-WOW!-250 mWs OVERSPEC average+100mWs

    Re: GB#1 IS CLOSED!! JETLASERS THEY ARE ON THE WAY!! 250 mWs all overspec free ext :D DELIVERED!!! :drool:
  12. CoherentRays

    Just used my 1.6W 445nm for self-defense.

    I'd be afraid that, at a distance of 8 feet, a 1.6 watt laser, no matter how defocussed, would permanently blind someone if aimed at the eyes. For that sort of up close and personal type of interaction I don't think even a 50 mW standard laser pointer could be defocussed enough to to only...
  13. CoherentRays

    GB#1 COMPLETED! JETLASERS;)-DELIVERED-WOW!-250 mWs OVERSPEC average+100mWs

    Re: GB#1 IS CLOSED!! JETLASERS THEY ARE ON THE WAY!! 250 mWs all overspec free ext I saw that too. Really feeling relieved now. :yh: Pretty amazing. Leave Hong Kong yesterday. Out for delivery in Houston today :wave: Ed
  14. CoherentRays

    GB#1 COMPLETED! JETLASERS;)-DELIVERED-WOW!-250 mWs OVERSPEC average+100mWs

    Re: GB#1 IS CLOSED!! JETLASERS 200&250 mWs ordered all overspec and free extras I just PP'd the shipping owed. Now I'll just wait and dream in green. And keep checking my mailbox. :drool: Ed
  15. CoherentRays

    FS: The Apollo Kit

    OK. I'll keep an eye on this section and place an order when I see you post the green light. Thanks, Ed
  16. CoherentRays

    FS: The Apollo Kit

    If I'm not too late to the party, I'd like to get on the list for one of these hosts with the focus adapter painted black gloss. I've finally decided to try my own build. Ed
  17. CoherentRays

    1-1.2 watt 445nm lasers

    Re: 1-1.2 watt 445nm lasers CHEAP $180 I just got my laser yesterday and have just been getting used to it. Yesterday my LPM reading with the supplied batteries was around 1240+ mW. Today, with different focus, different temperatures and different setup for the LPM, I get around 1150 mW with...
  18. CoherentRays

    1-1.2 watt 445nm lasers

    Re: 1-1.2 watt 445nm lasers CHEAP $180 Mine arrived yesterday. Fast shipping and lots of power in that little unit. It measured more that 1230 mW on my LPM. I'll be doing more careful measurements in the coming days, but I'm pretty impressed. Ed
  19. CoherentRays

    5 Watt Laser Power Meter

    Normally, I prefer a red display and I worried about this too when I ordered my LPM so I asked nospin about the visibility. He replied: Since my goggles are blue (for red blocking) and orange (for both blue and for green blocking) I finally ordered the blue display and it's very visible with...
  20. CoherentRays

    GB#1 COMPLETED! JETLASERS;)-DELIVERED-WOW!-250 mWs OVERSPEC average+100mWs

    Re: GB IS ON!!!--150/200/250 mW PGL-OR any item in STOCK-- all overspec and free extr Thanks for your message, Gray. If by having "time to regret", you mean it's not too late to get the regular tailcap instead of the disabled tailcap, I'd like to go for that, however I don't want to delay...


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