Petri Antero Stenberg

Title: Petri Antero Stenberg: Innovator in Optical Technologies

Introduction

Petri Antero Stenberg is a notable inventor based in Niittylahti, Finland. He has made significant contributions to the field of optical technologies, particularly in the development of diffractive optical elements. With a total of 2 patents, Stenberg's work is recognized for its innovative approaches to enhancing near-eye display devices.

Latest Patents

Stenberg's latest patents include groundbreaking technologies that improve the functionality of waveguides used in near-eye display (NED) devices. One of his patents, titled "Refractive coating for diffractive optical elements," describes a waveguide that utilizes a light-transmissive substrate to propagate light rays through total internal reflection. This patent also details a diffractive optical element (DOE) that can input and output light rays, featuring a diffraction grating made of a first material with a specific refractive index, coated with a second material of a different refractive index.

Another significant patent is "Diffractive optical elements with analog modulations and switching." This invention outlines a switchable DOE that varies its diffractive properties across its surface. The design includes a surface relief diffraction grating, a layer of liquid crystal material, and a conducting layer that applies voltage to the liquid crystal, allowing for dynamic control of light propagation.

Career Highlights

Stenberg is currently employed at Microsoft Technology Licensing, LLC, where he continues to push the boundaries of optical technology. His work at Microsoft has allowed him to collaborate with leading experts in the field, further enhancing his contributions to innovative optical solutions.

Collaborations

Throughout his career, Stenberg has worked alongside talented colleagues, including Jani Kari Tapio Tervo and Tuomas Heikki Sakari Vallius. These collaborations have fostered a creative environment that has led to the development of advanced optical technologies.

Conclusion

Petri Antero Stenberg is a prominent figure in the realm of optical innovations, with a focus on enhancing near-eye display technologies. His patents reflect a commitment to advancing the field and improving user experiences through innovative designs. Stenberg's contributions are a testament to the importance of creativity and collaboration in technological advancements.