To whom it may concern,
According to the latest review of our glass portfolio, we will do a reclassification of following glass-types, effective from May, 1St 2019:
Change to “special order”:
S-LAH79, S-NPH53, L-LAH86 und S-TIM1.
Special order types may be still available for some time, but we cannot guarantee. On your order we can melt these types during the next five years.
We recommend to change
from S-NPH53 to S-TIH53W and
from S-TIM1 to S-TIM2.
Change to „discontinued“:
we recommend to change to S-BSM81.
Please consider these changes in your optical designs.