Allentown Optical Corp.

Traditional vs Freeform Surfacing

Traditional lens making tools can work only on the backside of the lens. They cannot create aspheric shapes or the complex curves required for PALs (progressive addition lens). This is why the progressive channel of designs has traditionally been pre-molded by the manufacture on the front surface of the lens.

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SHAMIR LENS DESIGNS

Creation – 19mm fitting height

Freeform Optics – design resolution up to six times more accurate than standard cast PAL’s

Previous technologies created semi-finished PAL’s which used ceramic molds (mechanical molds)

Freeform Optics – patented software which bypasses the ceramic molds and creates digital molds (Glass Molds) which provide higher resolution.

Analogy

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