Location History:
- Ditzingen, DE (1978)
- Diekholzen, DE (1985)
Company Filing History:
Years Active: 1978-1985
Title: Innovator Helmut Stein: Advancing Optical Technology
Introduction: Helmut Stein, an accomplished inventor based in Ditzingen, Germany, has contributed significantly to the field of optical technology. With two patents to his name, he is recognized for his innovative approaches to enhancing the functionality of optical reflectors used in automotive vehicle headlamps.
Latest Patents: Helmut Stein's most recent patents include a novel process for making electrical connections between two surfaces and a method to apply a protective layer to the surface of optical reflectors. The latter patent describes a detailed methodology wherein reflectors are coated by evaporating aluminum in a vacuum. This process occurs at a vacuum pressure of approximately 10^-7 bar. Following this, a gaseous monomer is introduced, raising the pressure to about 5 x 10^-6 bar to deposit a protective layer through polymerization from the gaseous phase. The monomer gases, which include low molecular weight siloxanes such as hexamethyldisiloxane (HMDS) and vinyltrimethylsilane (VTMS), undergo polymerization accelerated by an electrical discharge generated within the vessel. The end result is a hydrophobic layer that is subsequently treated with oxygen at a controlled pressure to form a hydrophilic surface, enhancing the performance and durability of the optical reflectors.
Career Highlights: Helmut Stein has made significant advancements in his career, working at Robert Bosch GmbH, where he has played a crucial role in advancing technologies in optical components. His expertise has led to developments that improve the efficiency and reliability of automotive lighting systems.
Collaborations: Stein's work has involved collaboration with notable colleagues, including Ernst Zehender and Bernhard Blaich. Together, they have contributed to the innovative landscape of optical technology, fostering an environment of teamwork and shared knowledge.
Conclusion: Helmut Stein's contributions to the field of optical technology through his patents and collaborations highlight his commitment to innovation. His work at Robert Bosch GmbH not only demonstrates his expertise but also reflects the broader advancements in the automotive industry, paving the way for improved safety and performance in vehicle lighting systems.