olemus
teleri, monitori, filmiprojektori vms seadme
pildivahetussagedus

Oxford Languages:
the frequency at which frames in a television picture, film, or video sequence are displayed
https://www.premiumbeat.com/blog/beginners-guide-to-frame-rates/

(a) film, video, animatsioon:
üksikpiltide arv sekundis (kaader/s, FPS)
= the number of frames or images that are shown per second
https://en.wikipedia.org/wiki/Frame_rate
https://www.studiobinder.com/blog/video-frame-rate/

(b) kuva või TV-pilt:
värskenduse sagedus (Hz)
= screen refresh rate
https://www.epiphan.com/blog/frame-rate-refresh-rate/
https://vanillavideo.com/blog/2012/history-frame-rates-why-speeds-vary

näiteid
https://www.youtube.com/watch?v=pfiHFqnPLZ4

https://www.youtube.com/watch?v=XRaDV8YADiQ