Hi David,
is there a need to use UV light, e.g. does the photoresist need UV to react? Blue or white light would not only be more friendly to the DMD chip but also require less precautions, be directly visible with a microscope for alignment and checking (or at 50u, maybe even a good magnifying glass), etc.
At least at 50u the wavelength will be much smaller so sharpness or diffraction isn't a concern.
If you really need UV, I'd suggest using a socket so you can at least replace the DMD chip when it breaks. 30-50€ is okay-ish to try if it survives "long enough" on average.
Greetings, Martin
On Thu, Apr 8, 2021 at 1:32 PM David Lanzendörfer < leviathan@libresilicon.com> wrote:
Hi So in the data sheet of the DLP2000 they say that UV light will reduce the life span of the DMD chip. However. Sam Zeloof is using a DMD display from an overhead projector and it seems to be working ok. Should I take the chance and take this 30 Euro chips from Mouser, although the data sheet says, UV wouldn't be advised? I mean, I still can replace the chip afterwards through a more expensive UV chip, when the rest of the machine works...
Cheers -lev
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