Check exposure time for individual pixel

[Suigm]

Hi,
I would like to check what are exposure time for an individual pixel at a given layer ?

A little bit more context : I use Concept3D athena printer and in NanoDLP slicer they use, there is a "Middle exposure" that seems to permit to use for edge pixel normal layer time even for base layer in order to compensate in a clever way for the elephant foot.

I can read the Brightness of a given pixel but I don't know how to read for the exposure time of an individual pixel. Is there a way ? I would like to check how far from the edges this option is activated.

Thanks

Edit : PWN corrected by Brighness

[sn4k3]

I'm unaware of any technology that can apply PWM per pixel, PWM is applied to LED and not pixels.
The LED will affect pixel brightness in different way across the area, if that what you want to measure then you need a device capable of inspect that at pixel size, which you can't have. But you can have per a small area (Group of pixels sq). You can scan your screen and mesure the lighter areas to make a compensation.

[Suigm]

Thank you for your answer,

Sorry, I did use the wrong term, instead of PWM, I was talking about "Brighness" setting, that can be found on the bottom right box in UV tools, B=255 for a fully white pixel, B=0 for a full black pixel and intermediate values between. (example attached)

I wanted to know if something similar was possible to read through UV Tools for exposure time for individual pixel. I can only find in the left side table the cure general settings (for at least a full layer).

Please find below the function I was refering to in NanoDLP: https://docs.nano3dtech.com/manual/elephant-foot/
Multicuring example: https://docs.nano3dtech.com/manual/multicure/

[sn4k3]

UVtools does not offer that functionality, also if you prepare a file with it, using UVtools might disable that.
In most formats you can't have times per pixel nor zones, times are defined per layer. but you can have two layers at same position to do that effect. Sadly, most printers won't support that.

[Suigm]

Thanks for you answer, I will check with Nano3Dtech and Concepts3D how they implement it. Wish you a good day.