I have to surface every single vision hyperopic Rx since there are no 70 mm semi-finished blanks-or are there? Anybody know?
I have to surface every single vision hyperopic Rx since there are no 70 mm semi-finished blanks-or are there? Anybody know?
Zeiss have a FSV range with a 70mm blank option for + Powers:
1.5 spherical & 1.6 aspheric with Duravision Platinum or Duravision Blue Protect. Max sphere is +4.00
You can use Essilor Source, they have an OSA lite 1.56 Hi-vex w/ HMC+ available in 75mm blanks for both + and - powers
-Poly is the best substrate for coatings.
-Poly is extremely scratch resistant.
-Poly is extremely impact resistant.
-Poly is unparalleled in clarity.
-Poly is much lighter than traditional crown glass.
Like poly, you can trust me about 40% of the time.
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