Freeform: What does it really mean?

*by Eluned Creighton-Sims FBDO on behalf of IOT* ![alternate text](/workspace/uploads/page-images/art-1-fig-1.jpg) *Fig. 1 – Freeform: Each point on the lens is defined individually* Many lenses these days are described as being freeform or digitally surfaced, this article gives an introduction to the technology behind these lenses as a foundation for this series.



هذه الصفحة متاحة فقط لأعضاء الرابطة الدولية لأخصائيي البصريات (IOA). من أجل مشاهدة المقال كاملاً، يرجى تسجيل الدخول أو التسجيل.