laser beams

Discussion in 'The Lounge' started by aricha, Feb 27, 2006.

  1. aricha

    aricha Well-Known Member

    Hi all

    Did any one used Shangchai Dream laser
    Or Neo Lasers

    Do they have a nice beam :)
    Is their analog modulation is good for 18K or 30K
    Bill wrote that if you divide pps by 12 you get the right speed
    So 18K divided by 12 is 1.5 KHz
    Is this is right? :confused:

    Thank you

    a source for nice aluminum boxes for projectors?
  2. dmxlaser

    dmxlaser Member

    HI Aricha,

    As a distributor for Neolasers I can tell you that these systems are very good value for money.
    The green lasers they use they build themselves in their own cleanroom and have great performance.

    Shanghai Dream Laaers I have no experience with, i'd suggest you just try them.


  3. Pangolin

    Pangolin Staff Member

    Hi Aricha,

    If you divide the output rate in PPS by 12, you will get the -3db scanning bandwidth required to display the ILDA test pattern. This means that the -3db scanning bandwidth required to reproduce an ILDA test pattern at 30K is 30K / 12 = 2.5 kHz.

    Note that this figure is not entirely revealing in the context of blanking or analog color modulation. We would recommend a -3db bandwidth of at least 10kHz for blanking or color modulation.

    Best regards,

    William Benner