I'm translating an English document that lists equipment used in a qPCR procedure:
- Optical cap, 8X Strip
I googled and found that the meaning of this line is "a strip of 8 caps for PCR tubes". What is the meaning of optical though? I'm not sure how to translate it into Russian.
Does the word indicate the the cap is fully transparent? Or that the cap creates no visual distortion (it is flat)?
I'm googling but I can't seem to find any definition of "optical cap". It is used in a lot of books and documents as if the term is self-evident, while it's not.