Page 1 of 2 12 LastLast
Results 1 to 10 of 16

Thread: What 638nm diode correction optics vendors are out there?

  1. #1
    Join Date
    Jul 2010
    Location
    Netherlands
    Posts
    3,245

    Default What 638nm diode correction optics vendors are out there?

    I know lasershowparts.com sells an entire mitsubishi correction kit and Drlava at (some point or maybe even still?) sells correction optics other then just a lens for correcting a red 638nm diode.
    But what vendors/options are out there?

    I'm 100% sure it's listed somewhere but the red holy grail topic is humongous and it seems kinda spread around.. maybe I just suck at looking though

  2. #2
    Join Date
    Jul 2007
    Location
    Brooklyn NYC
    Posts
    838

  3. #3
    Join Date
    Mar 2010
    Location
    Raleigh, NC
    Posts
    2,201

    Default

    I haven't seen that website; thanks for the link. I'm also interested in obtaining some correction lenses. I have been wanting to upgrade my current projector and build a couple more using 100% direct diode lasers but I don't feel like experimenting with different diodes and optics. I'm still waiting for a combination that will have suitable power, a low minimum lasing threshold, and a dot on the wall comparable to a DPSS or old open can 650nm diode. Does anyone have any real world experience to share? I'm interested power levels under 1W total for white.

  4. #4
    Join Date
    Nov 2008
    Location
    Cleveland Ohio
    Posts
    2,423

    Default

    http://optlasers.com/en/laser-module...h-75v-psu.html Looks like a good deal. f they had added two more reds it would be really nice

  5. #5
    Join Date
    Apr 2010
    Location
    Grand Rapids, Mi
    Posts
    2,474

    Default

    Quote Originally Posted by kecked View Post
    http://optlasers.com/en/laser-module...h-75v-psu.html Looks like a good deal. f they had added two more reds it would be really nice
    Pretty sure that module only has correction on the red and nothing on the blue or green. It is pretty but surprised they wouldn't have pulled the green and blue back a bit and added lens to tighten it up.

    http://www.ebay.com/itm/4W-RGB-laser...item35ec1bfb37
    leading in trailing technology

  6. #6
    Join Date
    Aug 2010
    Location
    Belgium
    Posts
    294

    Default

    I still have a few set of x6 cyl. lenses, available for 45€.

    They have specific coating for RED 600-700 nm (or BLUE 420-480 nm), 40-20 scratch-dig.

    There's also some sets of x4 cyl. lenses, perfect for green and blue waiting to find a new owner .
    PS : a divergence as low as 0.6-0.7 mrad with 6 mm FL lens has been reached with NDG7475 or NDB7875 diodes

    --- www.neodym.be ---

  7. #7
    Join Date
    Jul 2007
    Location
    Brooklyn NYC
    Posts
    838

    Default

    i also just ordered a set of these i have no idea what they are 3x 4x 6x ect
    but i will say the look very small i haven't unwrapped them yet but in the tissue paper they look tiny almost unusably so
    http://www.ebay.com/itm/141761145377...%3AMEBIDX%3AIT

  8. #8
    Join Date
    Jul 2010
    Location
    Netherlands
    Posts
    3,245

    Default

    What is the difference between the cylindrical lenses of the 520 and 638nm one? I thought they were the same because they have the same beam profile.. or close to
    Only the coating?
    Would be cost efficient to pbs the 520 and 638 and then correct.

  9. #9
    Join Date
    Jul 2010
    Location
    Netherlands
    Posts
    3,245

    Default

    Quote Originally Posted by kecked View Post
    http://optlasers.com/en/laser-module...h-75v-psu.html Looks like a good deal. f they had added two more reds it would be really nice
    Where is the correction on the green and blue in this?
    Why is only red corrected?

  10. #10
    Join Date
    May 2014
    Location
    Barcelona, Spain
    Posts
    439

    Default

    I highly suggest purchasing cyls from reliable sources like Dave's laser show parts.
    Jordi Luque


    AtenLaser.com
    Barcelona

    "Let there be light"

Posting Permissions

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