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DLP9500: DLP removing the protective window over the mirrors

Justin Lariviere
Prodigy 20 points
Part Number: DLP9500

Hi,

A while ago I asked about removing the protective window over the mirrors of a DMD. We want to use the DLP9500 since it is the biggest array diagonal size with a mirror size of about 10 microns or less. We intend to use it for a Multi Object Spectroscopy in the range of 150-300nm. With the previous answer I got, I wasn't sure if it is possible to ask for the DMD without the protective window and what would be the associated cost.

Regards,

Justin

  • 0
    TI__Expert 5000 points

    Hey Justin,

    I wasn't able to find your previous thread but hopefully I can help. Is there a dire reason for taking off the protective window of the DMD?

    We don't sell DMDs without protective windows because of the delicate mechanics innately involved in the motion of the micro-mirrors. Additionally, please note this E2E thread Removal/replacement of DMD cover glass.

    Others might have comments as well.

    Best,

    Aaron

  • 0
    TI__Mastermind 43135 points

    Hello Justin,

    As mentioned in the other thread, TI does not support removal of the DMD window.  There are proprietary materials inside the DMD so that the warranty is voided by removing the window.  We do not offer the DMD without a window as the proprietary materials are required to ensure reliable operation of the micromirrors.

    Fizix

  • 0 in reply to Aaron Black
    Prodigy 20 points

    Hi, the reasons are : 

    - Avoid ghost images
    - For the UV transmission, we want to have the maximum transmission as possible. Is there any possibility to have a custom window, for example CaF2 ? With anti-reflectivity coating on it. 

    I would also like to know if the "lubricity" of the mirrors is compatible in a space environment ?

    Thanks,

    Justin

  • 0 in reply to Justin Lariviere
    TI__Mastermind 43135 points

    Hello again Justin,

    Regrettably we are not set up to provide custom windows either.  There have been a number of independent papers on space use of DMDs, but not with the window removed.  I would suggest searching SPIE's publications on the subject.  There are also papers on the affects of radiation on DMD operation in the SPIE publications.

    The "lubricity" is part of the proprietary material and removing the window releases it.

    You can certainly remove the window and do testing, but I was simply letting you know that we do not provide support in any way for doing so and do not guarantee that the mirrors will continue to operate for any length of time.

    Fizix