Daniel J Rogers

Title: Daniel J. Rogers and Diffractive Optical Replication.

Introduction

Daniel J. Rogers is an inventor associated with White Bear Lake, Minnesota, and Honeywell GmbH. His work includes methods for replicating diffractive optical elements, with an emphasis on high-fidelity patterns and scalable production. He is credited with 2 patents.

Latest Patents

Rogers’s patent, “Apparatus for Use in High-Fidelity Replication of Diffractive Optical Elements,” describes embossing a master optical element into photopolymer material on a substrate. The apparatus retains and aligns the sample and conveys radiation to cure the photopolymer under pressure. The disclosure also describes using intermediate nickel optical elements instead of quartz masters and liquid-processing techniques that enable replication on curved substrates. This approach can eliminate the need for a plano optical interface, potentially reducing the number of elements in an optical system.

His patent, “Scale-Up Process for Replicating Large-Area Diffractive Optical Elements,” presents photopolymer replication on plastics and a step-and-repeat process for producing large-area diffractive optical elements. A master with submicron features is replicated in UV-curable photopolymer through tiled exposures. The disclosed use of a chrome mask helps prevent ridges around individual elements and creates narrow seams, designed to minimize optical distortion in the finished component.

Career Highlights

Rogers’s patent work addresses both the precision and manufacturability of diffractive optics. The inventions describe techniques for reproducing fine optical patterns, adapting replication to curved surfaces, and scaling production to create lightweight, lower-cost, large-area components.

Collaborations

Rogers is associated with Honeywell GmbH. Lynn M. Galarneau is identified as a coworker.

Conclusion

Daniel J. Rogers’s patents focus on improving the fidelity, flexibility, and scalability of diffractive optical element manufacturing.