Richard Oleschuk

Title: Innovations by Richard Oleschuk

Introduction

Richard Oleschuk is a notable inventor based in Kingston, Canada, recognized for his contributions to the field of capillary technologies. With a total of eight patents to his name, Oleschuk has made significant advancements in the design and application of micro-nozzle arrays and axicon lenses.

Latest Patents

Among his latest patents, the Axicon lenses invention describes a capillary that includes a capillary channel, an inner layer, and an outer layer, where the inner and outer layers consist of different silica materials. The axicon lens formed on the facet end of the capillary channel features a specific geometry, with the inner layer having an axicon angle and a post angle. This innovation allows for the inner layer to be fused silica while the outer layer may be borosilicate glass. The post angle is influenced by the etch rate constants of both materials in various etching reagents. Additionally, the invention may include multiple capillary channels, each equipped with an axicon lens, which can be utilized as an electrospray emitter.

Another significant patent is the Micro-nozzle array, which comprises a plurality of capillaries made from a first silica-based material and a second silica-based material that surrounds the first. Each capillary corresponds to a nozzle that extends beyond the face of the micro-nozzle array, with applications in hydrodynamic or electro-os