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Thread: Red diode

  1. #1
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    Default Red diode

    Question about this auction:

    http://cgi.ebay.com/LE635-200-200mw-...QQcmdZViewItem

    I notice that this seller is quoting 635nm, not 660nm. Is this accurate? Usually, 635nm above, say, 50mW is extremely expensive, whereas this seems to be quite reasonable, if it is indeed 635nm. Anyone deal with this seller before? :?:

    Thanks,
    David

  2. #2
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    Default Re: Red diode

    Quote Originally Posted by DZurcher
    Question about this auction:

    http://cgi.ebay.com/LE635-200-200mw-...QQcmdZViewItem

    I notice that this seller is quoting 635nm, not 660nm. Is this accurate? Usually, 635nm above, say, 50mW is extremely expensive, whereas this seems to be quite reasonable, if it is indeed 635nm. Anyone deal with this seller before? :?:

    Thanks,
    David
    The seller of that item is a member of the forum here, maybe he will chime in.

    Thats decidedly a lasever production, I will contact them and find out all the details. The divergence is unfortunate however to be expected with a multimode diode and lesser than optimal optics.

    It kinda miffs me that some sellers on ebay forget to list certain specifications like that. Nothing person Aijii, i understand its a pain working with lasever and testing drop-shipped items is impossible at best.

  3. #3
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    Default RE: 635 nm laser on E-bay

    The price makes sense to me. $900 is wayyyyy too high for a 200 mw 650 nm laser, but it's a pretty *good* price for a 200 mw 635nm laser - especially when you consider the higher divergence.

    (A 650 nm laser would be less than $300 at that power level)

    So yeah, I'd say that you can feel comfortable that it's really a 635 nm laser.

    But like Spec said - aijii is a member here on PL... You could always just send him a PM. (Or wait a few days... I'm sure he'll respond to this post.)

    Adam

  4. #4
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    Default

    it is a 635nm diode, hence the lower bean specs
    KVANT Australian projector sales
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  5. #5
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    Default

    yo...

    yeah its kinda hard drop shipping. We try to buy one of everything we sell to test... (and write manuals for) but it gets a bit...umm.. expensive after a while.

    Anyway ... i'm not sure what specifications we haven't listed... but i will re-iterate that it IS a 635nm 200mw laser diode.

    Any questions please don't be afraid to ask....

    BTW, i'll add that both "dave" and I manage this store.... so hit either of us up with questions if you have any...

    cheers

    adrian
    Now proudly stocking and offering the best deals on laser-wave

    www.lasershowparts.com
    http://stores.ebay.com.au/Lasershow-Parts

  6. #6
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    Default

    Thanks for the info. I am just right on the edge about buying one. I really like the overall package that it is in, along with the 473nm model you have. The small size would be perfect for the projector design that I am getting ready to start. These diode lasers are still quite new to me and the information about them on this forum has provided for some great reading. There still seems to be alot of concern over thier blanking ability, beam quality and IR issues. On the other hand though, its great not having to rent a 25kW generator ever time I want to fire up the whitelight.....


    David Zurcher

  7. #7
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    Default

    :?: Hey David, if / when you get one of the 635nm red units I would love to see the color of the mixed lasers. It seems the color levels we have been chasing are somewhat off the levels of power that we have been shown to use. Very interested how the orange hues will react in a white light balance. I'll bet you will have yellows that are just unreal. Let us know of the output power of each unit for a good balance. If it does 30khZ analog it would be worth getting the collimation right.
    You are the only one that can make your dreams come true....and the only one that can stop them...A.M. Dietrich

  8. #8
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    Default

    we will at some stage get a rgb going with 635(first is getting the rgb with our arctos red finished). One of the things that makes them so appealing to me is their tiny size, and same beam height for all 3 colors..
    KVANT Australian projector sales
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    Lasershowparts- Laser Parts at great prices
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  9. #9
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    Default

    I am a bit concerned. I am not sure when it happened, maybe I was asleep, but more and more folks seem to refer to the 632.8nm line from a HeNe as orange. Perhaps I am color blind in some way, but the 632.8nm line does not look even close to being orange to me. If you want to see how 632.8nm looks with 532nm, see the web site listed in my profile and look at the photos closer to the bottom, starting with the rainbow fan. This was created with the 632.8nm from a HeNe, 532 from a dpss and 488nm from a 60X. All lines ran through individual AOM's. It looks pretty good to me. Also the video was done with the same projector.

    David

  10. #10
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    Default

    I believe the term is "orange-ish"

    Put a 632 next to a same visual power 660 and youll see the difference, the 632/635 looks "pretty orange" but its a comparison shot.

    They both make pretty neat reds and shades of orange/yellow.

    I prefer 660 for the sheer candy-apple-red look and mixing ability but 635 is a hell of a lot brighter per mW while offering a little less intense color mixes.

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