olemus
lainurkprojektor, mis väga lähedasele ekraanile tekitab rahuldava kvaliteediga normaalsuuruses kujutise
= an electronic optical device that uses special wide angle lenses and mirrors to “throw” the image onto the screen from a very short distance

ülevaateid
https://elitescreens.com/2017/11/the-difference-between-standard-short-throw-and-ust-projectors/
https://www.projectorscreen.com/blog/ultra-short-throw-UST-projector-buying-guide
https://www.nytimes.com/wirecutter/blog/ultra-short-throw-projector-vs-tv/