Location History:
- ruelle Boutet Boviolles, FR (2007)
- Boviolles, FR (2005 - 2010)
Company Filing History:
2 out of 738 
1 out of 719 
Years Active: 2005-2010
Title: Yvon Helmstetter: Innovator in Optical Technology
Introduction
Yvon Helmstetter is a notable inventor based in Boviolles, France. He has made significant contributions to the field of optical technology, holding a total of 3 patents. His work primarily focuses on enhancing the performance of optical articles through innovative coatings and production methods.
Latest Patents
One of Helmstetter's latest patents is for an optical article covered with a visible-absorbing, multi-layer anti-reflective coating. This invention relates to a transparent substrate made of organic or inorganic glass, featuring main front and rear faces. At least one of these faces includes a multi-layer anti-reflection coating, which comprises at least two visible-absorbing layers made of sub-stoichiometric titanium oxide. The design aims to reduce the relative transmission factor of visible light by at least 10% compared to similar articles without these layers.
Another significant patent is for a cold antireflection layer deposition process. This method involves creating an antiglare stack by vacuum evaporation on an organic substrate at a temperature lower than 150°C. The process includes depositing a layer of material with a refractive index different from that of magnesium fluoride, preparing the surface of the coated substrate, and finally depositing an outer magnesium fluoride layer without ionic assistance. The resulting antiglare stack exhibits excellent adherence and scratch resistance, making it applicable to ophthalmic lenses.
Career Highlights
Throughout his career, Yvon Helmstetter has worked with prominent companies in the optical industry, including Essilor International and Compagnie Générale d'Optique. His experience in these organizations has allowed him to develop and refine his innovative ideas in optical technology.
Collaborations
Helmstetter has collaborated with notable colleagues such as Frederic Arrouy and Michele Thomas. These partnerships have contributed to the advancement of his research and the successful development of his patents.
Conclusion
Yvon Helmstetter is a distinguished inventor whose work in optical technology has led to significant advancements in the field. His innovative patents and collaborations reflect his commitment to enhancing optical performance through cutting-edge solutions.