Page 1 of 4 1234 LastLast
Results 1 to 10 of 34

Thread: 460nm diodes---Really?

  1. #1
    Join Date
    Aug 2007
    Location
    Under a rock in Cambridge UK
    Posts
    1,353

    Default 460nm diodes---Really?

    Interesting Facebook post from Medialas, just wondering if 460nm diodes are a reality, or are they talking about 460nm OPS Lasers...

    Click image for larger version. 

Name:	Screen Shot 2013-03-28 at 20.49.14.png 
Views:	123 
Size:	66.3 KB 
ID:	37592

    Cheers
    Mark

  2. #2
    Join Date
    Aug 2007
    Location
    Under a rock in Cambridge UK
    Posts
    1,353

    Default

    The plot thickens....

    I asked and they replied, "Fully diode"... Anyone else seen 460nm diodes?

  3. #3
    Join Date
    Nov 2005
    Location
    Melbourne, Australia
    Posts
    3,702

    Default

    Nichia was talking about them some time ago.

    If they have been released, I bet they will still be pricey as :-(
    KVANT Australian projector sales
    https://www.facebook.com/kvantaus/

    Lasershowparts- Laser Parts at great prices
    https://www.facebook.com/lasershowparts/

  4. #4
    Join Date
    Nov 2008
    Location
    Cleveland Ohio
    Posts
    2,613

    Default

    Think about it. 445nm 1W $50.00 or 460nm 1W $xxxx.xx To the eye it won't matter. Just use more 445nm and be happy. It's not like red where you can see the difference in hue. In fact the 445nm should give a larger pallet to work wth.

    It's like complaining that you have too much 640nm and an expensive 632nm laser just came out. Sometimes I think we fixate a bit too much.

  5. #5
    Join Date
    Sep 2006
    Location
    Netherlands
    Posts
    1,438

    Default

    In fact the 445nm should give a larger pallet to work wth.
    I dare too differ. If a smaller wavelenght would give a larger , then 405 would be king. But it is not as we all know.
    If you compare the respective triangles into the color-locus, you'll see that they have the same surface, (half height x base)
    But I agree it is all nitpicking as you just said.

    It might be that there are secondary dis(advantages) such as better or worse scattering.

  6. #6
    Join Date
    Dec 2006
    Location
    Essex, UK
    Posts
    8,648

    Default

    dont we have similar conversations on here about 660 and 638 and which one does everyone recommend cos its brighter...
    Eat Sleep Lase Repeat

  7. #7
    Join Date
    Sep 2006
    Location
    Netherlands
    Posts
    1,438

    Default

    ... not to mention the 473 vs 445 discussion ...

  8. #8
    Join Date
    Jan 2007
    Location
    Florida
    Posts
    4,382

    Default

    My wife loves the 488. She calls it "peacock color". When I switched to 445 she said "where's the peacock color ?? .. this color looks almost gray .. "
    Made me think a bit ..

  9. #9
    Join Date
    Jan 2006
    Location
    Charleston, SC
    Posts
    2,147,489,525

    Default

    I think 460 nm would be a nice compromise between the sky-blue of 473 nm DPSS blue, and the deep blue of 445 nm direct-injection blue.

    While I will admit that 445 looks great for beam shows, and even for some graphics shows, there are frames that, at least in my opinion, look terrible in 445 because it's too dark of a shade. In those cases, I really miss having 473 nm DPSS blue.

    That being said, Marc is right. In the end, price is king. So if 460 nm blue ends up being an order of magnitude more expensive than 445 nm blue, it's doomed.

    Adam

  10. #10
    Join Date
    Sep 2012
    Posts
    64

    Default

    I agree with above post. 460 looks great as opposed to 445. It doesn't sound like much, but it gives the blue everyone is really after. Especially for graphics. The lighter tint seems to be easier on the eyes and is a more "happy" color technically speaking.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •