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DLP7000UV: window transmission at 300nm

Renaud Ligot
Prodigy 10 points
Part Number: DLP7000UV

Hello

I am investigating the possibility to use the DLP7000UV evaluation board at wavelength 300nm.

Fig. 3 of your document DLPA031E-May2012 shows a transmission of the window equals to 75% at 300nm.

1. Can you confirm this transmission value?

2.Is this simple pass or double pass?

Beside that, do you see any possible issue of using this DMD at 300nm?

Best regards,

Renaud

  • 0
    TI__Guru 54320 points

    Hello Renaud,

    The last paragraph of page 1 of DLPA031E states: "The measured data provided in the following sections reflects a typical single-pass transmittance through both top and bottom AR coated window surfaces with random polarization." [emphasis added]

    This is measured data for 0 degrees incident is showing more like 73%.  However the note at the bottom of page one says, "NOTE: The curves shown are typical performance and not minimum specified limits or ensured values."

    I will point out that transmission values are not the only consideration on this.  Please check the data sheet for the DLP7000UV [DLPS061D].  On page 12 the Recommended Operating Conditions indicate that for wavelengths less than 363 the illumination should be less than 2 mW/cm^2.

    Fizix