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  • TI Thinks Resolved

DLPDLCR2000EVM: Ultrashort Throw

Part Number: DLPDLCR2000EVM

Hello,

I'm thinking about purchasing the DLPDLCR2000EVM from DigiKey. My question is, with the included optical engine what is the minimum focal distance? For my application I would like to create a screen on a surface from less than 12 inches away.

Thanks!

  • Hi Hunter,
    Please refer to page 8 and Table 2 of "TI DLP® LightCrafter™ Display 2000 EVM User's Guide" www.ti.com/.../dlpu049c.pdf. It has specification of the optical engine used.
    The focus range is 10 -60 inches.

    regards,
    Vivek
  • In reply to Vivek Thakur:

    Thank you very much!

    Is there an optical engine I can purchase that will work better for distances less than 10 inches?

  • In reply to Hunter Long61:

    Hi Hunter,
    Could you please describe your requirement for projection - resolution ,Minimum focus distance, brightness and throw ratio (size of image @10 inches)? I understand that minimum focus distance is critical, does size of image matters at that distance?

    regards,
    Vivek
  • In reply to Vivek Thakur:

    The ideal minimum focus distance will be 2 inches. The brightness doesn't need to be very high, and the throw ratio doesn't really matter to me. It is ok if the image is really small at 2 inches. At this point, the brightness and throw ratio would be determined by whatever is cheapest/easiest. However, having as small of a focus distance as possible is very important.

    Thanks,
    -Hunter
  • In reply to Hunter Long61:

    Hi Hunter,
    I am not aware of off-the self optical engine with 2 inches minimum focus distance. The closest , I could find is engine used in DLP2010 EVM. It has has focus range 5 - 50 inches. The DLp2010 DMD has WVGA 854x480 (854x480) . www.ti.com/.../dlpu027b.pdf

    If your system configuration has available space in other axis, you may want to consider using a fold mirror .

    Regards,
    Vivek

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