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DLPLCR4500EVM: DLPLCR4500EVM

Eldar Noe
Prodigy 20 points
Part Number: DLPLCR4500EVM
Other Parts Discussed in Thread: DLP4500NIR, DLP4500, DLP2010NIR, DLP5500

Hello folks,

I am working on a project where we would like to use a DLP to scan an infrared (2 um) laser in a 2-d raster.  At first glance, if would seem that the DLP Discovery 4100 Development Kit would be the right product to use, except that the wavelength transmittance is not optimized for the 2 um range (it's 70%).  Figure 6 in the technical document http://www.ti.com/lit/an/dlpa031c/dlpa031c.pdf shows that the NIR Corning Eagle XG window does transmit in our wavelength, but it also states that it applies to the DLP4500NIR DMD.

Looking for the DLP4500NIR DMD, I found the DLP4500 Lightcrafter.  However, it does not seem to be the same thing as the DLP 4100 Development Kit.  I was wondering if you could help me select the product that would allow me to scan the 2 um laser.  

Thanks,

Eldar Noe

  • 0
    TI__Mastermind 28005 points
    Eldar Noe,

    The DLP4500 LightCrafter is a visible-light wavelength EVM, so you probably won't be able to achieve effective results with it. You may need to consider the DLP4500 NIRscan EVM or the NIRscan Nano EVM (which uses the DLP2010NIR DMD).

    What is the wavelength of your incoming laser light?

    Best Regards,
    Philippe Dollo
  • 0 in reply to Philippe Dollo
    Prodigy 20 points
    Phillipe,

    I am working with a 2 um laser.
    I looked up the DLP4500 NIRScan EVM, but that seems to be a spectrometer that uses the DLP4500.

    Also, what is the difference then between the DLP4500, 5500, and 6500? The 5500 seems to use a window that is transparent in the NIR
  • 0 in reply to Eldar Noe
    TI__Mastermind 28005 points

    Eldar Noe,

    That's correct. The DLP4500NIR is a spectroscopy platform.

    The DLP4500, DLP5500, and DLP6500 are all DMDs rated for high-speed visible light spectrum applications. The DLP4500 has a diagonal window size of 0.45" and provide WXGA resolution. The DLP5500 measures 0.55" across with XGA resolution, and the DLP6500 measures 0.65" across with 1080p resolution.

    The reason I recommended the NIR platform devices is that they are rated for infrared wavelengths, which appears to be your application. The evaluation kits we provide for our NIR devices are aimed at spectroscopy applications.

    Have you verified whether or not our NIR EVMs provide the feature set you are looking for?

    I hope this helps.

    Best Regards,
    Philippe Dollo