Since yesterday, i have problems with some mistakes, they look as bubbles.
After dip coating, we canīt see anything. But after the curing oven they are visible.
Temperatures are ok. I have some batches over night in another oven, will see then if this apears also.
Itīs definately on the dip coating, if we scrip off the coating the lens is ok.
Attatched the pictures make with a microscope.
Any ideas, what it could be?
Thanks
Rafael
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