Since I received my Screeneo U5, I have been having problems with warped / curved images. I tried everything with the configuration but it is impossible to have a straight frame. I tried projecting on other walls and the image was still curved. I tried another projector on my projection wall and then the image is straight - so the problem is not the wall. I tried a laser level - the laser lines are straight and the projection is curved.
How to solve it?
Hello, the first thing to check is if your wall is straight UST technology is very sensitive to any wall difference and even if you warp the image you will still have some waves on your image.
You won’t see that with a normal throw projector as the light is coming from the front.
I had the same issue with my first UST projector. No wall is ever 100% flat. Got an ALR screen and it’s worth it. Can have the lights on and maintain a great picture even during the day with ambient light.
Got mine today and I’m impressed with the image quality during the day.
This is what I learned for what it’s worth. . .
Note that H and V values are positive numbers only, so for H set your vertical laser line at bottom left corner (i.e. narrowest width) and work up with H values increasing in middle to max on top ( whatever is required to move the image edge right to match the laser line. And so on for other edges.
Don’t forget to set up projector focus first by ensuring projector is perpendicular/parallel to the wall. Only calibrate for distortion after picture in focus over whole image.
Btw a laser line on its own does NOT tell you how flat your wall is. And these short throw projectors amplify that lack of flatness inherent to the design. So other non short throw projectors may look fine. From your images though it seems to me you might just be misunderstanding how to apply HV procedure.
Having the same issue. I think my ALR screen isn’t flat. Annoying but tweaking as a go
Even with ALR screens, it’s never 100% flat. My screen has spring tensions so that helps make it flatter.
