Before 1980, aspherical surfaces were only used on high-power plus spectacle lenses that lie beyond the range of powers that can be corrected for aberrational astigmatism with spherical surfaces. In recent years, this has changed and once again this was made possible by the development of freeform machining.
Yes, we live in a digital world. And yes, we not only use emails as a matter of course, but also business messaging service providers such as WhatsApp. But although these digital systems offer many advantages, the question remains as to whether we, as participants in the popular online dialog, would sometimes prefer to have a human contact.
Freeform technology brought the possibility, not only of optimizing the performance for any individual prescription, but also of varying the design characteristics of the lens by incorporating more fitting data relating to the facial characteristics of the wearer. That is, the lens could be optimized and personalized.
Empowering women in the optical industry is the goal of the Optical Women’s Association (OWA). The organization has long been popular in the USA. Now it is also taking its first steps in Europe. MAFO has spoken to Nancy Gries, Co-Vice Chair International Expansion Committee and Co-Founder of Coti Vision Limited.
The perfect surface – lenses between human and machine The EssilorLuxottica Group operates hundreds of ophthalmic lens production facilities worldwide. Some of them are located in Europe, and one plant is even in the middle of Germany. For 80 years, high-quality ophthalmic lenses have been manufactured in Braunschweig.
Based on 20 years of experience, a world-renowned Japanese manufacturer has completed a fully
automated dry tinting system. The digital tinting method works completely differently compared to
traditional dipping and is said to have a number of advantages in terms of productivity, environmental
impact, and material versatility as a result.
Without doubt, the most significant development in spectacle lens design is the change in the
manufacturing process from lapping to computer numerically controlled milling methods usually
referred to as freeform or digital surfacing. The first part of this paper is designed to remind you of the principles of design which have led to the modern personalized and optimized progressive power lens.
Data security is not just a buzzword, – it is a vital part of keeping modern businesses running smoothly. We have all seen real-world examples where data breaches caused massive headaches for companies that did not take their security seriously. But do not worry, we have got some positive news to balance that out! When data security is done right, it brings a ton of benefits.
The process of measuring the position of the spectacles frame in relation to a user’s face and pupils is called the centering process. Its purpose is to provide the optician with the necessary measurements to correctly order the lenses. For a long time, this process was carried out by hand, but there are now numerous digital methods and even technology using AI to improve the process.
AI has dramatically evolved across various industries, from gaming to manufacturing. A striking example is chess, where AI transitioned from rudimentary programs weaker than humans in the 1950’s to AlphaZero’s unprecedented dominance in 2017. This evolution mirrors the progress in cosmetic inspection of ophthalmic lenses, where machines are moving from simple assistance to eventual full automation.
