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  1. CDBEAM777

    New! Sharp Diodes 1W 520nm & 5W 455nm & +2W 638nm

    HMMMM....For the sake of my lifelong education....What axis are we manipulating with a FAC. lens ???????? Fast or Slow....Are we expanding/correcting the Slow Axis to achieve X=Y Aspect ratio....or are we reducing/correcting the Fast Axis to achieve X=Y Aspect ratio ??? Again....I believe...
  2. CDBEAM777

    New! Sharp Diodes 1W 520nm & 5W 455nm & +2W 638nm

    OK...As I understand the operations of a Cylindrical Lens Pair...The Slow Axis is expanded/multiplied....This is why we identify C-Lenses as 2X, 3X...6X...With the Slow axis expanded....With this multiplication.... we then have a almost have X=Y expansion....Unfortunately...I have not done...
  3. CDBEAM777

    The Green Gargoyle 10.08 W @ 520nm

    FYI...we continue to move forward....each issue/problem taking it's turn....in the " Magic Bag of Tricks " !!!! ( RE: Felix the Cat ) CDBeam
  4. CDBEAM777

    New! Sharp Diodes 1W 520nm & 5W 455nm & +2W 638nm

    Yea...I think Trinh does not have the FAC'ed diodes....SOoooo...we wait.....Drum Roll please !!! 🥁 CDBeam
  5. CDBEAM777

    New! Sharp Diodes 1W 520nm & 5W 455nm & +2W 638nm

    Hmmmm...I think the FAC corrected Sharp is on the left....because....525nm would have more a yellow tint...and the left unit looks to have a yellow tint....IMNSHO...also...the beam on the left appears to have a tighter geometry...at least at about 3M !! Trinh...Stop Dick'en around ( HAHAHAHA...
  6. CDBEAM777

    New! Sharp Diodes 1W 520nm & 5W 455nm & +2W 638nm

    Great discussions to all of you !!! This is sure changing fast...prices going up !! $45 for shipping a diode ??? Come on !!!! Well....basically...we are at their discretion...PERIOD !! To Bad...So Sad !! OK...I can see FAC for CNC at the Blue line...Why Red and Green ???? Really...IF we...
  7. CDBEAM777

    New! Sharp Diodes 1W 520nm & 5W 455nm & +2W 638nm

    Well...Quite a lively conversation !! SO...We must ask ourselves...." Why were these FAC lenses added to any multimode diode " ???? What was/is the final desired engineering outcome ??? What is the application ????? Surly...Hundreds of thousands of $$$ were not invested so that we may enjoy...
  8. CDBEAM777

    Dye Laser Comes to Life!

    Well...." PoorMan's" sounds lika bad choice of words on my part...ALL things are relative !!! ....But then....a DPSS/OPLS...or other professional grade Yellow with some decent PO...5~10 K ??? Now...If we made $$ with our hobby....well..." That is a Horse of different Colour " !!! Well...Do...
  9. CDBEAM777

    Dye Laser Comes to Life!

    Oh Crap..... See pic !!!! My FIRST Coherent inspiration was based upon this SciAM article !!! Hmmmmm…….Clickamouse wants a Yellow source for Lumia...BADLY...Very Badly...SO...can we morph over to pulsed....to deliver the perception of CV...maybe at 2W intensity......Maybe we can have a "...
  10. CDBEAM777

    Diode damage??

    LPF is a unique place !!! Really...a singular place of a passion and sharing regarding Laser light !! It is a very, very specialized place !! LPF …is a " Virtual Internet Island " ….of like minded individuals who share a common passion..." All things dealing with Coherent Light " LPF is...
  11. CDBEAM777

    Diode damage??

    In this case....What you have is now extremely dangerous !! A swinging, unmounted beam....which is invisible !!! Damage to your eyesight is very possible !! THROW IT AWAY.... or use the pointer as a hammer !!! ….Really, just a friendly ...but serious suggestion !! Unless you are a...
  12. CDBEAM777

    LPF's Build showroom

    Yes...I am Still here....and " I stand on the Shoulders of Giants " !! .Although....This latest build....with many, many NDG7475's is kill'in me !! Alignment will be a complete...CF !! But...It will happen....er...eventually !! CDBeam
  13. CDBEAM777

    LPF's Build showroom

    Very, very nice Gallery......THANK YOU !! SO MANY more works of Art to choose from....Such passion !! You bet....2020 will add to that list...." I assure you, Such power exists " Klaatu !!! CDBeam
  14. CDBEAM777

    My new year artillery is on the way :)

    WOW !!!! Just Freak'in WOW !!!! Happy New Year my friend !!! Be careful !!!...Your passion for Lasers WILL return.... For now....your passion is firmly planted in Firework's....their making and using !!! And...as typical....you are " ALL IN " !!!!!!!!!!! I am VERY impressed !! Bob
  15. CDBEAM777

    Dye Laser Comes to Life!

    PICS....PLEASE !!! Yes....A trip in the " WayBack Machine " is in order here ( Thanx Mr. Peabody !!).....Back to 1970....There was an article in the Magazine " Scientific American " See the link !!! A Homebuilt Dye Laser.....I assume this is a variation of THAT build ??? BRAVO....Indeed...
  16. CDBEAM777

    Cheap OLike/LPS RGB Handheld

    Good thing you did " No DisAssemble" yet....OLike...IF you read this...You had better WELCOME a return...We had better read if it here...OR...your WILL LOOSE FACE ???? SAVY !!!!! I think you should send TWO (2) for his disappointment and trouble !!! CDBeam
  17. CDBEAM777

    CLens GB #2 Interest_sign-up

    OK...GB is going.... S L O W....but...we will get there !! Now @ 35 sets...need 50 sets to order !!! " Buhler....Buhler ????? " CDBeam
  18. CDBEAM777

    Cheap OLike/LPS RGB Handheld

    Sheeezzz ….Sorry Z.......Failed to read all your thread.....DUH !! You state ALL Single Mode...OK....Just get'r open....and hope ya got some wiggle room.....as for color balance...well ...I bet you are stuck with a lamo Red !! IIRC..For White Balance.....RGB ratio...
  19. CDBEAM777

    Cheap OLike/LPS RGB Handheld

    Interesting !!! Please show is the Internals when you get it apart....IF you can get it apart !!!! Curious to see how 10 lbs of SH!T....is packed in a 9 lbs bag !!!!! Good luck with adjustment !!!!Hopefully....there is the ability to adjust !!! Did I miss info...What is total Power...
  20. CDBEAM777

    Researchers generate terahertz laser with laughing gas

    WOW.....NOW I feel like Patrick...on Sponge Bob !!! Thank you for the paper....Need to learn more every day !! CDBeam


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