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Taking apart the LightCrafter

Christopher Cheatum
Prodigy 35 points

Is it possible to remove the LEDs and the optics so that I can get light from an external source into and out of the DMD? This system is really affordable and seems to be an ideal way for me to set up a basic single-pixel camera. I do not want the LEDs or associated optics in the light engine, but there is not a simple development kit available at such a low cost without it. Can I buy this simple model and just remove the light engine? Will the DMD still work?

  • 0
    TI__Genius 9935 points

    Christopher,

    Welcome to the DLP & MEMS E2E forum.

    Yes. It is indeed possible to remove the light engine from a DLP LightCrafter development kit. It is quite easy.

    See this link to an E2E thread:

    http://e2e.ti.com/support/dlp__mems_micro-electro-mechanical_systems/f/850/p/159950/586943.aspx#586943

    This thread has instructions and photos showing how it is done.

    I would be interested in knowing more about your project, should you be willing to share.

  • 0 in reply to Pascal DLP
    Prodigy 35 points

    This is perfect! Thank you so much! With this information, I will order one right away.

    The project eventually is to do infrared spectroscopic imaging using the DMD to construct the image by compressive sampling. In the near term, I want to do a proof-of-concept experiment in the near-IR. Once I have done that, which I expect will be straightforward, I am interested in having a custom DMD manufactured with an IR-transmitting window. Do you happen to know if that is possible or with whom I should speak about it? 

  • 0 in reply to Christopher Cheatum
    TI__Genius 9935 points

    Christopher,

    Thank you for saying more about your project. Very interesting. I would like to know more as you progress.

    Can you tell me the range of IR wavelengths which you are interested in?

    Please have a look at this document: http://www.ti.com/lit/an/dlpa031b/dlpa031b.pdf "Wavelength Transmittance Considerations for DLP® DMD Window"

  • 0 in reply to Pascal DLP
    Prodigy 35 points

    I will be much further out in the IR than the stock window will allow. My initial applications will be around 2500 nm or so, which is easily accessible with the stock window, but, I eventually want to go out as far as 10 microns. It will require a CaF2 or ZnSe window to transmit across that region of the mid-IR. That would definitely be a custom item. In spite of the potentially high cost, my eventual application will really depend on being able to get this device. I am hopeful that I can speak with someone at TI about the possibility of having such a DMD manufactured. If I cannot get it, then it would kill this very high impact research project.