Drop Ball Test on every lens?
Good Morning,
I have been following this site for many years and it has provided an invaluable experience! Thank you all.
I know that drop test is requirement in the US, but never really paid attention to it, as it is not required here in Canada.
Yesterday my curiosity kicked in and I did some research on FDA site. So, I am not sure how practically this is executed at the smaller lab level.
My understanding is that drop test is required to be performed on edged lenses before mounting. Do you drop test EVERY single surfaced lens??? Does not it damage lenses? I know my lab works hard to prevent any tiniest scratches on the AR coated lenses. I am not sure how much of the impact the steel ball will make on the lens and coating.
Also, do you get some kind of certificate with every job, that states that lens was drop tested?
Thank you in advance
NP
The drop ball test was used in the old days of glass lenses.......................
The drop ball test was used in the old days of glass lenses, and not needed for plastic lenses.