Light bleed cover for Benq W4000i / HT4550i projector

Since my ceiling mounted Benq W4000i projector (named HT4550i in the US market) shows a disturbing bright light bleed / glow on the ceiling, I designed this visor to block the stray light.

Works pretty well for me and should be working for all vertical lens shift degrees. Should also work for floor standing set-ups, where people might get disturbed by the stray light on the floor.

Can be easily removed, if you want to put on the lens cover.