This inventor holds 11 USPTO granted patents. Top assignee: International Business Machines Corporation. Active years: 1976-1979.
Company Filing History:
Years Active: 1976-1979
Title: Einar S Mathisen: Innovator in Spectrophotometry
Introduction
Einar S Mathisen is a notable inventor based in Poughkeepsie, NY (US). He has made significant contributions to the field of spectrophotometry, holding a total of 11 patents. His work focuses on developing advanced systems for analyzing colorimetric properties, which are essential in various scientific applications.
Latest Patents
One of Mathisen's latest patents is a spectrum analyzing system with a photodiode array. This innovative system measures or analyzes the colorimetric properties of a test sample at preselected wavelengths within the ultraviolet, visible, and near-infrared regions. The system includes a spectrophotometer equipped with a wideband light source, optical devices for sample and reference light paths, and a chopper wheel for directing light alternately along these paths. Additionally, it features a dispersion grating, a series of neutral density filters, and a linear array of photodiodes for detecting dispersed light at different wavelengths. The electronic control section includes a programmable power supply to control light intensity, ensuring optimal operation of the photodiode array.
Another significant patent is the spectrophotometer sample holder with an improved sample viewing apparatus. This design includes a stationary base forming a cylindrical cavity that supports a fiber optic head assembly for analyzing the color of a sample positioned adjacent to the base. The fiber optic head assembly covers the top of the cavity, making the sample area invisible to the operator. A shutter mechanism allows the operator to view the sample when needed, while a prism raises the viewing position to a normal level.
Career Highlights
Einar S Mathisen is currently employed at International Business Machines Corporation (IBM), where he continues to innovate in the field of spectrophotometry. His work has significantly advanced the capabilities of spectrophotometric analysis, making it more efficient and accurate.
Collaborations
Throughout his career, Mathisen has collaborated with notable colleagues, including Alvin H Tong and Paul A Schumann, Jr. These collaborations have contributed to the development of his innovative patents and advancements in the field.
Conclusion
Einar S Mathisen is a distinguished inventor whose contributions to spectrophotometry have had a lasting impact on the field. His innovative patents and work at IBM demonstrate his commitment to advancing technology in colorimetric analysis.