This inventor holds 4 USPTO granted patents. Top assignees: Sagax Instrument Ab, Other. Active years: 1982-1995.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- 11 Goteborg, SE (1982)
- Molndal, SE (1987)
- 43 Molnlycke, SE (1995)
Company Filing History:
2 out of 3 
2 out of 834,513 Years Active: 1982-1995
Title: Erland T Sandstrom: Innovator in Optical Technologies
Introduction
Erland T Sandstrom is a notable inventor based in Molnlycke, Sweden. He has made significant contributions to the field of optical technologies, holding a total of 4 patents. His work focuses on innovative methods and apparatuses that enhance optical imaging and measurement accuracy.
Latest Patents
Among his latest patents, Sandstrom has developed an optical spatial filtering method aimed at attenuating the zero diffractive orders. This method involves forming an image of an object through optical projection, utilizing a focusing system that collimates multiple incoherent light beams. The beams are directed towards the object in such a way that the non-diffracted components intersect the aperture stop at specific points. This innovative approach allows for the attenuation of the zero diffraction order relative to other diffraction orders, ultimately enhancing image quality.
Another significant patent by Sandstrom is an ellipsometric method and apparatus designed to study the physical properties of materials. This method employs comparative ellipsometry to improve measurement accuracy. It involves dividing a reference surface into two equal portions with different reflection characteristics, which are symmetrically related to the test piece. This design aims to provide more precise measurements of characteristics such as layer thickness.
Career Highlights
Throughout his career, Erland T Sandstrom has worked with various companies, including Sagax Instrument AB. His expertise in optical technologies has positioned him as a valuable contributor to advancements in this field.
Collaborations
Sandstrom has collaborated with notable individuals such as Johan E Stenberg and Lars B Stiblert. These partnerships have likely enriched his work and contributed to the development of his innovative patents.
Conclusion
Erland T Sandstrom's contributions to optical technologies through his patents demonstrate his commitment to innovation and precision in measurement. His work continues to influence the field and inspire future advancements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile