David A Stewart

Title: Innovations by David A Stewart

Introduction

David A Stewart is a notable inventor based in Kirkland, WA (US). He has made significant contributions to the field of optical instruments and imaging technologies. With a total of three patents to his name, Stewart's work has advanced the capabilities of high-resolution imaging and lithography.

Latest Patents

One of Stewart's latest patents is titled "Dispersing immersion liquid for high resolution imaging and lithography." This patent describes methods and apparatus for delivering index-matching immersion liquid in high numerical-aperture optical microscopy and lithography. An array of immersion liquid droplets is delivered to a specimen substrate or specimen substrate cover by an immersion liquid printing apparatus. The immersion liquid reservoir provides immersion liquid to the printer via a precision pump. The printer delivers immersion liquid to the substrate or substrate cover in arrays of defined volumes and patterns. The volumes and patterns of array droplets are optimized to maintain adequate immersion liquid while avoiding air bubbles and excess accumulation.

Another significant patent is the "Objective lens changer for optical instruments." This invention relates to objective lens changers and includes an objective lens carrier that is moveably attached to a changer frame by a mechanical link arrangement. The objective lens carrier features multiple objective lens positions, and the mechanical link arrangement allows for translation and alignment of the objective lens with respect to the optical axis of the instrument.

Career Highlights

David A Stewart is currently employed at GE Healthcare Bio-Sciences Corp. His work at this company has allowed him to focus on innovative solutions in the healthcare and imaging sectors. Stewart's expertise in optical technologies has positioned him as a valuable asset in his field.

Collaborations

Stewart has collaborated with notable colleagues, including William Michael Dougherty and Paul Carlyle Goodwin. These collaborations have contributed to the development of advanced technologies in optical instruments.

Conclusion

David A Stewart's contributions to the field of optical imaging and lithography are noteworthy. His innovative patents reflect his commitment to advancing technology in healthcare and imaging. Through his work at GE Healthcare Bio-Sciences Corp, Stewart continues to make significant strides in his field.