ぜん反射 はんしゃプリズムじゃなかったです
zenhanshapurizumujanakattadesu

Noun
Desu Copula

The polite, past negative form of 全反射プリズム

1. Wasn't a total reflection prism.; Wasn't a total internal reflection prism.

Past/Perfective
Negative
Polite
Casual Register