Metadata
Author: LASER-wikipedia2
Data
English[en]
Class 3R (formerly IIIa) lasers are usually up to 5 mW and involve a small risk of eye damage within the time of the blink reflex.
Chinese[zh]
第3 a/R級(Class IIIa/3R):功率通常會達到5mW,並且在眨眼反射的時間內會有對眼睛造成傷害的小風險。