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Thread: DTR's Laser Shop: Diodes-Drivers-Lenses-LEDs & More

  1. #251
    Join Date
    Oct 2007
    Location
    Wisconsin
    Posts
    305

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    When I bought my projector it was an opened box unit that I purchased at a reduced price after I opened it up and
    took a look inside to make sure all the diodes were there, I just looked into the lenses and made sure I saw some gold
    color. To get it to that stage took just a minute or two and I did it on Best Buys' service counter.

    It does not look so easy with this model!

  2. #252
    Join Date
    Feb 2011
    Location
    St. Louis
    Posts
    526

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    Yep it does not have a nice trap door to the diodes like the other projector but was not too bad. Just the cover, a metal cover plate and two special screws and it was able to be unplugged and pulled. The real downer is the low number of diodes and the crappy lenses.

  3. #253
    Join Date
    Feb 2011
    Location
    St. Louis
    Posts
    526

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    Osram 1.4W PLTB450 450nm diodes now in stock. I will post up some testing info tonight.

    https://sites.google.com/site/dtrlpf...450-1-4w-450nm

  4. #254
    Join Date
    Aug 2010
    Location
    Belgium
    Posts
    295

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    Whoow

    If we take a look at the datasheet,

    Beam divergence parallel : MAXIMUM 15°
    Beam divergence perpendicular : 18 < .... < 25°

    Goodbye extra beam correction ??

  5. #255
    Join Date
    Feb 2011
    Location
    New Hampshire
    Posts
    3,513

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    DTR,
    Power output and beam dimensions with a common lens type would be very interesting.

  6. #256
    Join Date
    May 2007
    Location
    1 hr from everything in SoCal
    Posts
    2,753

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    Eagerly awaiting results!
    If you're the smartest person in the room, then you're in the wrong room.

  7. #257
    Join Date
    Feb 2011
    Location
    St. Louis
    Posts
    526

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    Tonight I will do some testing. Got to get through my orders at the moment so I can get them in the mail by 4pm.

  8. #258
    Join Date
    Jun 2009
    Location
    The Woods, CA, USA
    Posts
    534

    Default

    On your page you have listed some of the Osram's as "PLTB450" and some as "PL450B" just a typo?

  9. #259
    Join Date
    Aug 2010
    Location
    Belgium
    Posts
    295

    Default

    PLTB450 are the 1.4W ones, PL450B are the 0.08W monomode 3.8mm ones

  10. #260
    Join Date
    Feb 2011
    Location
    St. Louis
    Posts
    526

    Default

    Here is a comparison. Paced out 30 feet so it could be off by a foot or two either way. Measured the line with my calipers.


    Here is a comparison of the raw output. M140 on top.
    Last edited by DTR; 07-23-2016 at 08:16.

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