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Coating on the transmission window

Jack Bunn
Prodigy 60 points

Dear all:

I am trying to use DLP1700 for longer wavelengths application. Simulations showed it should work for NIR and MIR. 

I also acknowledged that the transmission window is coated with some material  to reject energy outside the frequency range. For DLP1700, the wavelength should not be larger than 2.5 microns in order to get a acceptable transmission through the window.

The problem is that, since I cannot remove the window which protect the DMD , is it coated for a single side of the window or both sides? Can I just scratch the coated material from the window and design a new filter for my application?

Best wishes

Jack 

  • 0
    TI__Genius 9935 points

    Jack,

    The DMD windows are anti-reflection coated on both sides of the window.

    The windows can not be removed without destroying the DMD.

    We certainly do not recommend trying to remove the coating on the outside of the window. It would be difficult, and would probably damage the window.

    Best regards,

    Pascal