Seiko Uses 3D Virtual Reality System to Design Free-Form PAL

By Andrew Karp: Group Editor, Lenses + Technology

Seiko Supernal incorporates many of the same design features as Seiko Surmount but has fewer inset steps and no convex curves on the concave side for improved flatter base plus Rx cosmetics.
MAHWAH, N.J.—Seiko Optical Products of America is introducing Supernal, its first free-form lens designed using an advanced 3D Virtual Reality System for improved lens design capabilities.

“This new 3D Virtual Reality System is an evaluation method utilizing computer graphics technology which enables optical engineers to understand how patients view objects in numerous settings and improve PAL lens design performance by simulating vision through the wearer’s eyes,” explained Mike Rybacki, Seiko’s senior vice president of sales and marketing.

Seiko Supernal offers seven automatic semi-variable insets based on the prescription that range from 1.75mm to 3.25mm, in 0.25mm increments and also utilizes patented “Internal progressive and Internal Aspheric design” to reduce blurriness and distortions. The width of clear vision around the fitting point has been increased by approximately 50 percent by utilizing Non-Linear Progressive Power Change. This technology maintains a broad near field of vision while expanding clarity around the fitting point and distance area.

Advanced Aspheric Compensation and Multi-Polar Astigmatic Correction combine to improve visual comfort, panoramic vision, and image stability, especially difficult for Rx’s with very high astigmatic correction, Rybacki said. ■