Page 3 of 13 FirstFirst 1234567 ... LastLast
Results 21 to 30 of 128

Thread: 445nm specific PBS cube GB

  1. #21
    Join Date
    Feb 2010
    Posts
    9

    Default

    I meant to say 15x15x15 I think that gets the qty pretty close to 50 right?

  2. #22
    Join Date
    Nov 2005
    Location
    Melbourne, Australia
    Posts
    3,694

    Default

    Looks like we can do 50pcs of 15mm

    Is everyone cool with 15mm cubes? 50pcs of 15mm cubes are going to come to $38AUD a cube
    KVANT Australian projector sales
    https://www.facebook.com/kvantaus/

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

  3. #23
    Bradfo69's Avatar
    Bradfo69 is offline Pending BST Forum Purchases: $47,127,283.53
    Join Date
    Jul 2010
    Location
    Wilmington, DE
    Posts
    5,968

    Default

    Damn... it's takes a whole bunch of extra keystrokes here to say the word "fine".

  4. #24
    Join Date
    Jan 2006
    Location
    Charleston, SC
    Posts
    2,147,488,805

    Default

    Sorry for being so late coming to the party. If there's still room in this GB, I'm in for 2 cubes.

    Adam

  5. #25
    Join Date
    Feb 2010
    Posts
    9

    Default

    I just discovered a company that sells the waveplate attached the the beamcube. I really need to go with this sort of design. I would assume everyone else would benifit from the same thing. Not having to mount the waveplate seperately, not needing to mount the 2nd diode(s) at different orientation, would benifit every show laser design that I am aware of. Except maybe the guys that want to have slow and fast axis crossed, but typically those designs don't need a larger beam cube or special coating as power is not really an issue on such low tech solutions. But I might be wrong.

    http://www.cn-optics.com/products/Be...ers_PBS_WP.asp

    Dave can you ask them if they can do the same waveplate as attached to the beam cube as in the link above?
    It would need to be a 1/2 waveplate for 445nm.

    I am not 100% certain on it needing to be 1/2 or 1/4 wave plate, but so far it seems it should be 1/2.

    Does anyone have issue with the cost increase this might cause? Does anyone really not want a waveplate on the beamcube?

  6. #26
    Join Date
    Nov 2005
    Location
    Melbourne, Australia
    Posts
    3,694

    Default

    Hmm, I have been thinking about the idea of a 1/2 waveplate ( not 1/4 glued to a pbs, and I would have thought it would be useful to be aqble to rotate the 1/2 wp to get max thruput?

    PS Jon, I have just ordered some bits and pieces from the mob i get the 1/2 waveplates off - just asked the question regarding bigger 445 waveplates
    KVANT Australian projector sales
    https://www.facebook.com/kvantaus/

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

  7. #27
    Join Date
    Feb 2013
    Location
    Dallas, TX
    Posts
    427

    Default

    I'd be in on this group buy, but I'd rather not have to wait since I have a show coming up in 2 weeks and a burnt 10mm 445nm PBS cube that needs replacement. Seeking a replacement from anyone that might have one. Please send PM!

    Much appreciated,

    -rick

  8. #28
    Join Date
    Jan 2011
    Location
    Boston
    Posts
    255

    Default

    I would be up for wave plates, true zero order contacted, AR coated for 638 and 445.
    Rick

  9. #29
    swamidog's Avatar
    swamidog is online now Jr. Woodchuckington Janitor III, Esq.
    Join Date
    Nov 2006
    Location
    santa fe, nm
    Posts
    1,545,361

    Default

    Quote Originally Posted by zetist View Post
    I just discovered a company that sells the waveplate attached the the beamcube. I really need to go with this sort of design. I would assume everyone else would benifit from the same thing. Not having to mount the waveplate seperately, not needing to mount the 2nd diode(s) at different orientation, would benifit every show laser design that I am aware of. Except maybe the guys that want to have slow and fast axis crossed, but typically those designs don't need a larger beam cube or special coating as power is not really an issue on such low tech solutions. But I might be wrong.
    crossing slow and fast axis isn't exactly a low-tech solution. it's a way to ensure divergence on the x and y axis remains constant and makes for better beam blending with other lasers.

    power is not an issue on my smaller builds...

    Click image for larger version. 

Name:	complicated-445.jpg 
Views:	51 
Size:	80.5 KB 
ID:	37519

    but it certainly is on my larger ones.

    Click image for larger version. 

Name:	10x445-aligned-01.jpg 
Views:	71 
Size:	199.6 KB 
ID:	37520
    suppose you're thinkin' about a plate o' shrimp. Suddenly someone'll say, like, plate, or shrimp, or plate o' shrimp out of the blue, no explanation. No point in lookin' for one, either. It's all part of a cosmic unconciousness.

  10. #30
    Join Date
    Nov 2007
    Location
    SoCal / San Salvador / NY
    Posts
    4,017

    Default

    ..I think the other-concern with the 'cubiplate-combo' is rotational-range limitation.. not far you can rotate to glean max-thruput, if one/two of a multi-watt knifed-input is a nano-tweek off, (...and the diodes are already rotated as far as they can-go / dialed-in the best they can on the prism-knives.) w/o killing the others' efficiency, or possibly murdering the other axis.. Still, might be an interesting cube to test for 'lower-risk' builds, ie: a 4-up'er... ...

    Quote Originally Posted by swamidog View Post
    ...but it certainly is on my larger ones.
    Click image for larger version. 

Name:	10x445-aligned-01.jpg 
Views:	71 
Size:	199.6 KB 
ID:	37520
    ..I believe this laser can be 'heard' at 2:44-2:45 http://www.youtube.com/watch?v=WKt2Y83njlk, amirite?
    nice werk, Mr C...

    ..So, Dave - are we at 50, yet? Keep us posted, and me on that larger 1/2-wave - *NEED*..

    cheers..
    j
    Last edited by dsli_jon; 03-22-2013 at 15:26. Reason: moar clarity...
    ....and armed only with his trusty 21 Zorgawatt KTiOPO4...

Posting Permissions

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