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I just have known that Younger Optics has introduced an informational and educational brochure that compares the NuPolar® Hard Resin Polarized Lens to other leading prescription Rx hard resin...

Thank you!How to polish the glass PAL mould?Are there any problems in producing high index semi-finished PAL?

Best regards,

peng

I don't know much about the tech and system you have mentiont above which sola used.can you explain it clearly?what factors do sola consider when they produce PAL lenses?

the progressive of rodenstock also have the different base curves which have different design.but this only contains inter movement feature.I don't know much about the tech and system you have...