Sylvain Petitgrand

Title: Sylvain Petitgrand: Innovator in Optical Measurement Technologies

Introduction

Sylvain Petitgrand is a notable inventor based in Caissargues, France. He has made significant contributions to the field of optical measurement technologies, holding a total of 3 patents. His work focuses on developing advanced devices and methods for measuring interfaces of optical elements.

Latest Patents

Among his latest innovations is a patent for a "Device and method for measuring interfaces of an optical element." This device includes at least one low-coherence light source and at least one optical sensor. It features an interferometric device that is illuminated by the light source and is configured to shape at least one measurement beam and at least two reference beams. The device directs one measurement beam to the optical element to pass through its interfaces and directs light from at least two interfaces to the sensor or sensors. Each sensor is designed to detect at least two interference signals resulting from the measurement beam reflected by one of the interfaces and one of the reference beams. Additionally, the measurement device includes a positioner for positioning a coherence area at each interface and a digital processor for producing information about the shape of each interface according to a field of view.

Another significant patent is a "Method and device for measuring interfaces of an optical element." This method is designed for measuring interfaces of an optical element that is part of a plurality of similar elements, including at least one reference optical element. The method is implemented by a device and includes various steps to ensure accurate measurements.

Career Highlights

Throughout his career, Sylvain Petitgrand has worked with several companies, including Fogale Nanotech and Unity Semiconductor Corporation. His experience in these organizations has allowed him to refine his skills and contribute to innovative projects in optical technologies.

Collaborations

Sylvain has collaborated with notable professionals in his field, including Alain Courteville and Gilles Fresquet. These collaborations have further enhanced his work and contributed to the development of cutting-edge technologies.

Conclusion

Sylvain Petitgrand is a distinguished inventor whose work in optical measurement technologies has led to significant advancements in the field. His patents reflect his commitment to innovation and excellence in optical engineering.