the greatest trajedy of Essilor is how poor their progressive really are. They are just now adding features to their lenses that Rodenstock had in 2002, and Zeiss, Shamir and Seiko all had by 2004. Sadly most of their technical effort has been to get around the Zeiss and Seiko patents on Free-form. Essilor still does not make a fully compensated spherical free-form with advance ray-tracing. They just added frame adjustments into 1 design. Yea!
I sadly see a huge rush by Essilor when the Ziess patent expires in 2019 to full embrace free-form, but spin it in way the entire idea is their invention.
Sadly millions of Essilor customers are wearing way over priced, pathetically under optimized progressives and don't even know it, all because Essilor doesn't want to pay a $2.60 patent fee per pair, yet still charges exorbitant prices for very old technology.
I sadly see a huge rush by Essilor when the Ziess patent expires in 2019 to full embrace free-form, but spin it in way the entire idea is their invention.
Sadly millions of Essilor customers are wearing way over priced, pathetically under optimized progressives and don't even know it, all because Essilor doesn't want to pay a $2.60 patent fee per pair, yet still charges exorbitant prices for very old technology.
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