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Thread: Red laser with good beam ?

  1. #11
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    I've been thinking about doing this, but it's just the footprint that holds me back
    Maybe I should give it a go. The footprint of my beam-halving setup would be pretty big as well. How did you make the diode mounts? I need some (hint hint )

  2. #12
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  3. #13
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    Yes, I've looked into those before. They are NICE, but outside of my budget range .
    Imagine ... 2W of 642nm

  4. #14
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    Cool

    Suppose I told you that you could get 500 mw of 635 nm red with a 4 mm square beam at the aperture and ~ 1 mrad divergence or less? (To put that in perspective, you're talking about a spot that is less than 35 mm square at 100 feet.)

    What would you be willing to pay for such a laser? (Or, alternately, what would you consider a fair price to be for such a laser?)

    And before you say that such a laser doesn't exist, rest assured that it does, and it's made in the USA.

    Adam

    PS: I'm not selling these lasers. I'm trying to get some feedback to the person that makes them so I can convince that person to start making more of them and selling them to us! I know I'd love to have one...

  5. #15
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    Quote Originally Posted by buffo View Post

    PS: I'm not selling these lasers. I'm trying to get some feedback to the person that makes them so I can convince that person to start making more of them and selling them to us! I know I'd love to have one...
    He don't have more projectors than he really needs does he?

  6. #16
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    Quote Originally Posted by allthatwhichis View Post
    He don't have more projectors than he really needs does he?
    Shhhhh! You'll scare him away.

    Adam

  7. #17
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    Quote Originally Posted by buffo View Post

    And before you say that such a laser doesn't exist, rest assured that it does, and it's made in the USA.
    Actually, it's being made in the UK as well

  8. #18
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    Quote Originally Posted by p1t8ull View Post
    Actually, it's being made in the UK as well
    Yeah, but this is not a multi-diode solution. This is a single diode laser that can be scaled up to nearly 1 watt of power. (So figure 1.8 watts if you were to combine two of them with a PBS cube, and lots more than that if you want to start stacking diodes using the knife edge mirror trick.)

    It's all in the optics...

    Adam

  9. #19
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    This is also a single MM diode
    Those are very impressive sounding power levels there though

  10. #20
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    Smile

    Quote Originally Posted by p1t8ull View Post
    This is also a single MM diode
    Those are very impressive sounding power levels there though
    Yeah, I was blown away when I first hear about it. I'll have more details and pictures later. (No time between now and my vacation, and I'll be tied up later in the month w/ my Mom's foot surgery.)

    If I can prove that there's interest for this sort of laser, I think I can convince him to build a few of them to sell. Need to show him that they're worth building though. (Lots of work - custom housing, complicated optics train, etc...)

    I figure a 500 mw 635 nm red with the beams specs I posted above ought to be worth something close to a grand, and a 1 watt laser of the same spec should be close to 2 grand. I think at those prices, it would be worth his while to build a couple.

    Likewise, I think he could produce a 200 mw 635 red with the same beam specs and have it be priced at around $400. That's pretty good when you consider how bright 635 nm red really is. (Remember that at FLEM Mark II we showed that 375 mw of 660 red appears to be the same brightness as just 73 mw of 635 nm red!)

    I'll be leaning on him pretty hard over the next month. If I can prove to him that there's a market for these lasers, I think I can convince him to build a few for us!

    Adam

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