Việt
nicon vuông góc
nicôn vuông góc
Anh
crossed Nicols
erect
normal
Đức
gekreuzte Nicol-Prismen
crossed nicols /điện lạnh/
crossed nicols
crossed nicols, erect, normal
gekreuzte Nicol-Prismen /nt pl/V_LÝ/
[EN] crossed Nicols
[VI] nicon vuông góc