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Thread: 642nm laser question

  1. #1
    Join Date
    Jul 2007
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    west sussex uk
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    Default 642nm laser question

    will two 150mw 642 nm be brighter than my 5 diode 700mw 660nm
    i dont think threre will be much in it
    hope one of you guys know the answer

  2. #2
    Join Date
    Jan 2007
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    Sheepsville, Wales, UK
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    Default

    Chris
    According to the chart I have pinned the wall next to my desk (Medialas source) the visibility of the 2 wavelengths is as follows

    660nm =0.061
    642nm =0.159
    (555nm =1.000)

    so on this basis 642 is 2.6 times as visible, so 100mw of 642nm =260mw of 660nm or 300mW of 642nm = 780mW of 660nm

    Which makes the answer to your question YES!

    Rob
    If you need to ask the question 'whats so good about a laser' - you won't understand the answer.
    -----------------------------------------------------------------------------------------------
    Laserists do it by the nanometre.

    Stanwax Laser is a Corporate Member of Ilda

    Stanwax Laser main distributor of First Contact in UK - like us on Facebook http://www.facebook.com/FirstContactPolymerCleaner
    www.photoniccleaning.co.uk

  3. #3
    Join Date
    Jul 2007
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    west sussex uk
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    Default 642nm

    i did a few more tweaks to the five diode red and its now just under 750mw and thats only pushing the diodes to 300ma now the 642 idea is looking very expensive for the few extra mw that i would get
    then again i supose i could overdrive the 642's a little bit
    it a difficult choice when i should be saving for a blue laser
    and buying some scanners
    dam i wish this was not happening so close to christmas then i would say fcuk it and go for it
    i think i will have to give the gb a miss and hope theres another soon
    unless i can find some more stuff to sell on ebay

  4. #4
    Join Date
    Mar 2008
    Location
    Crawley (UK)
    Posts
    449

    Talking

    Hi Chris,

    I know your feeling..I am deciding about new processor for PC and few more things and... it is not easy!
    ..I want to keep my handz of CC..hmm...

    Are we comming to the UKLEM by the way?

    Cheers

  5. #5
    Join Date
    Jul 2005
    Location
    Lancashire UK
    Posts
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    Default

    Hi Martin

    Just got a new PC a few weeks ago and im "over the moon" with it

    so i will gladly reccomend it

    it was a brand new bare bones system ( no keyb mouse or monitor )

    but had a Intel 2.4g Quad core proceesor ( 9.6 Ghz )
    4gig of ram
    500 gig sata Hard drive
    Litescribe DVD writer
    groovy light up case and PSU
    Downside was onboard grafix ( but has a PCI express slot for grfx card )
    but they do a 1gb pci card version

    and the best bit 175 ready built and tested

    link here ... EBAY PC from G4-technologies

    delivered 2 days later ... great quality unit and could not find it cheaper seperately

    hope this helps buddy ...

    all the best ... Karl

  6. #6
    Join Date
    Feb 2007
    Location
    Herts, UK
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    Default

    And the best thread hijack award of 2008 goes to..


  7. #7
    Join Date
    Jul 2005
    Location
    Lancashire UK
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    Default

    ME ....

    anyway did i mention about my new PC

    ok ... back to the diodes .....



    all the best ... Karl

  8. #8
    Join Date
    Oct 2006
    Location
    Central Florida
    Posts
    7,067

    Talking

    Quote Originally Posted by Banthai View Post
    and the best bit 175 ready built and tested

    link here ... EBAY PC from G4-technologies

    delivered 2 days later ... great quality unit and could not find it cheaper seperately
    Kinda makes you wonder if he now has a night job assembling PCs...
    Love, peace, and grease,

    allthat... aka: aaron@pangolin

  9. #9
    Join Date
    Jan 2007
    Location
    Florida
    Posts
    4,382

    Default

    OK Mr. hi-Jacker..
    I put an OEM (LG) DVD-RAM burner in my pc so I can use it with the DVD recorders downstairs by the TVs, but it came with no program disc (being oem, of course-D'OH)-where was my brain that day? What do you use with your new Litescribe DVD writer? Or- do you know of any good cheap DVD burning downloadable programs?
    (now back to the diodes,, maybe)
    Thanx,
    -S

  10. #10
    Join Date
    Jul 2005
    Location
    Lancashire UK
    Posts
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    Default

    funny you should mention about DVD recorders

    As i .... just got a new PC

    it was a brand new bare bones system ( no keyb mouse or monitor )

    but had a Intel 2.4g Quad core proceesor ( 9.6 Ghz )
    4gig of ram
    500 gig sata Hard drive
    Litescribe DVD writer
    groovy light up case and PSU
    Downside was onboard grafix ( but has a PCI express slot for grfx card )
    but they do a 1gb pci card version

    and the best bit 175 ready built and tested

    link here ... EBAY PC from G4-technologies

    delivered 2 days later ... great quality unit and could not find it cheaper seperately



    but you did not want to know about my new pc ...did ya

    mine had no disk but xp loaded the correct driver etc ....

    for burning discs .... for the last 2 years i have used

    Cute DVD burner

    http://www.tucows.com/preview/500608

    its shareware .... and only $30 for the full version

    ive found it burns everything with no coasters for me beer

    i highly recommend it ......

    anyway back to the diodes ..... but did i tell you about my new PC

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