absorptive glass (protective filter against optical radiation), filter lens

Chinese

吸收玻璃（防光学辐射防护滤镜）; 滤光镜片

Vietnamese

kính hấp thụ (bộ lọc bảo vệ chống bức xạ quang học); thấu kính lọc

English

absorptive glass (protective filter against optical radiation), filter lens