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DMD to be used 266 nm Laser

user4808229
Prodigy 10 points
Other Parts Discussed in Thread: DLP7000UV

Dear,

My research group is building  an interference exposure system using 266 nm laser, and we are looking for the DMD arrays  as the mirror adjusting angular.

However, the lowest specified wavelength for the DLPs on the TI website seems to be 363nm.

We have some questions.

1) Which DLP do you recommend? DLP7000UV or DLP 9500UV?

2) Can DMD be used in 0, 5, or 10 degree state?

3) Can  DMD be used under 266 nm laser and then what is the percentage of the reflection?

I am looking forward to hearing.

Best Regards,

Kazuki

  • 0
    TI__Mastermind 30600 points
    Kazuki,

    Thank you for your questions and welcome to the DLP Forums.


    1. I cannot recommend any device for operation below the specified wavelengths. The primary difference between the two devices is resolution. Choose whichever device meets your requirements.

    2. The mirrors have a fixed angle that they tilt at, it is not adjustable.

    3. Below 363nm, the power level has be to held to 2mW/cm2. This constraint must be observed or you will risk damaging the device - there is a proprietary material inside the DMD which can be impacted by those wavelengths and could reduce the lifetime or change the operation of the device. The wavelength range is also a function of the window that is put over the DMD.

    Thanks!
    Paul