I have two specific ceiling lights that I want to partially block from shining directly into my eyes while watching TV.

I’m not sure how common this size and specific shape are, but it is modeled with a 5.8英寸 (147毫米) diameter and features a 10-degree slope on the ribbed insert, which fits into the corresponding ribs of the inset light barrel.

Please note that I have uploaded both a .step file and the conventional .STL file. Using the .step file, I can achieve a much smoother curvature in the slicer, free from the faceting effects resulting from tessellation in the .STL file.