"BladeScan AHS reflects LED light onto a blade mirror rotating at high speed..." is translated to "BladeScan AHS refleja luz LED sobre un reflector a alta velocidad..." In this part, "blade mirror" is translated as "reflector" because it refers to a component that reflects light. The term "blade" is not translated literally but rather understood in the context of its function, hence "reflector" is used to convey the idea of a surface that redirects light. I attached a video with the exactly moment that shows the mirror blade for your reference.