The chart Projector wata na'ura ce mai ƙarfi ta AC da aka yi niyya don tsara hoto akan allo don gwajin hangen nesa.Za'a iya sarrafa ginshiƙi ɗauke da fayafai, farantin abin rufe fuska da bututun ma'auni na astigmatic ta ƙwanƙwasa duk an samar da su a gaban panel na majigi.