Can I use UV LED instead of RGB in DLP LightCrafter?

Juyoung Kim

Prodigy 40 points

Hi Everyone,

I have one application in which I need to display image sequences with UV-LED instead of visible RGB LED?

Is it doable for user to replace one of the LED with what I want to use?

I would appreciate your help.

Regards,

Juyoung

over 9 years ago

0 A214529 over 9 years ago

TI__Intellectual 2305 points

Hi Juyoung,

For UV applications, we suggest these: DLP7000UV and DLP9500UV.

The DMD on the DLP Lightcrafter is optimized to work in 420-700 nm wavelength (visible) range, not for UV. We have not tested this device to specify its life time performance below 420 nm, and its UV operation is not covered by any warranty.

The white paper on DMD Window transmittance contains information on the window transmission efficiency.

Regards,

A214529

0 Adam Kunzman45 over 9 years ago

Intellectual 345 points

Juyoung -

Even though TI does not the DMD below 420 nm, we have made a 405 nm version by replacing the LED in our LC3000-UV. If you attempt the modification yourself, please note that most UV LED require a higher forward voltage from a different LED driver, and that you will likely need to modify the housing mechanically to fit the LED.

0 Juyoung Kim over 9 years ago in reply to Adam Kunzman45

Prodigy 40 points

Thanks for the info.

Do you have a DLP which can run R-G-UV instead of R-G-B?

I am interested in 3-color UV-DLP in which the blue is replaced by UV LED (385 nm).

2-color operation is also of interest.

Thank you.

0 Adam Kunzman45 over 9 years ago in reply to Juyoung Kim

Intellectual 345 points

Juyoung,

Yes, we have a R-G-UV solution. But there is very limited output power available at 385 nm due to lens materials, so we only support 405 nm.

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Can I use UV LED instead of RGB in DLP LightCrafter?