Richard Legras

Title: Innovations by Richard Legras in Optical Technology

Introduction

Richard Legras is an accomplished inventor based in Robinson, France. He has made significant contributions to the field of optical technology, particularly in the development of advanced contact and intraocular lenses. With a total of two patents to his name, Legras has focused on improving the performance and functionality of lenses used for vision correction.

Latest Patents

Legras's latest patents include a contact or intraocular lens and a method for its preparation. His innovative design features toric contact or intraocular lenses that possess a correcting portion characterized by novel constructions. These constructions enhance the optical path, improving angular misalignment tolerance. The lens can be designed with a "smooth atoric" aspect, which corrects for both astigmatism and other axisymmetric aberrations without sudden surface discontinuities. Additionally, the lens may incorporate sectors arranged circumferentially around the optical axis, allowing for variations in the optical path based on angular separation from the reference meridian plane. This design significantly increases angular misalignment tolerance by at least 30% compared to standard toric lenses.

Another patent focuses on a method for producing angular tolerance markings on contact lenses designed to correct astigmatism. This method involves creating tolerance markings that consist of at least two straight line segments in the peripheral part of the lens, with an angle between them that depends on the cylinder of the contact lens.

Career Highlights

Throughout his career, Richard Legras has worked with notable companies in the optical industry, including Ocular Sciences, Inc. and Essilor International. His experience in these organizations has contributed to his expertise in lens design and manufacturing.

Collaborations

Legras has collaborated with several professionals in the field, including Nicolas Chateau and Bruno Fermigier. These partnerships have likely enriched his work and led to further advancements in optical technology.

Conclusion

Richard Legras is a prominent inventor whose work in optical technology has led to significant innovations in contact and intraocular lenses. His patents reflect a commitment to enhancing vision correction through advanced design and manufacturing techniques.