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DLPDLCR4710EVM-G2: controlling mirrors individually

Elizabeth Strong
Prodigy 120 points
Part Number: DLPDLCR4710EVM-G2
Other Parts Discussed in Thread: DLP3010, DLPC3438

Hello!

Is it possible to achieve direct control of individual mirrors with my DLPLCR4710EVM-G2?  In my application I would like to have most of the mirrors at -17°, switching patterns of mirrors to +17° at known times.  Can this be done by, for example, playing a with the same number of pixels as mirrors (1080x1920) that is, say, black with red features, through the HDMI connection?  My concern is that, for each frame, the mirror might not remain in the intended position.  

Thanks! 

  • 0
    TI__Mastermind 23070 points
    Hi Elizabeth,
    Thank you for your interest in DLP technology. Could you please share more details about your application and what operations you would like to perform? Your applications seems like “Light control”.

    The DLPLCR4710EVM-G2 is optimized for display application. The input image goes through several images processing steps to enhance visual experience. A pixel level control is not supported in this EVM.

    Please review the evaluation module (EVMs) available for light control application at the following:
    www.ti.com/.../tools-software.html

    Do any of them meet your requirement?

    You may also want to consider the new controller “DLPC3438”, currently under preview. This controller supports display and light control applications for DLP3010 DMD.
    www.ti.com/.../dlpc3478

    Regards,
    Vivek
  • 0 in reply to Vivek Thakur
    Prodigy 120 points
    Thanks for the response, Vivek. I'm planning on using a DMD in my optics research. I'd like to simulate light being scattered off of small particles. I was envisioning programming the DMDy to have most of its mirrors to point in one direction but to have groups of 10-15 mirrors pointing in the opposite direction. In my experiment, I'll illuminate the DMD with a red laser and collect the light reflected from these groups of mirrors.

    It looks like this could be possible with the DLP Lightcrafter 4500 EVM, correct? The new controller you mentioned also looks excellent. However, the reason I was drawn to the EVMs as opposed to purchasing the controller & the DMD separately and assembling them myself was purely for convenience; I'm inexperienced with assembling circuitry.
    Thank you!
  • 0 in reply to Elizabeth Strong
    TI__Mastermind 23070 points
    Hi Elizabeth,
    DLP Lightcrafter 4500 EVM should able to support your application. It allows pixel accurate control using pattern and bitmaps, i.e. each pixel in the pattern/bitmap corresponds to a mirror on the DMD and is not processed by any of the video processing functions
    www.ti.com/.../dlplcr4500evm
    Regards,
    Vivek