Company Filing History:
Years Active: 2012-2013
Title: Kyuman Cho: Innovator in Optical Measurement Technologies
Introduction
Kyuman Cho is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of optical measurement technologies, holding a total of 2 patents. His work focuses on advancing the capabilities of scanning microscopes and optical surface measuring apparatuses.
Latest Patents
One of his latest patents is a "Scanning microscope using heterodyne interferometer." This invention relates to a scanning microscope that utilizes a heterodyne interferometer for mapping or imaging complex optical parameters. It can analyze the physical structures and material properties of a sample under test. The design allows for in- and quadrature-phase interference signals, which are essential for extracting phase and amplitude changes induced on the probe beam. By scanning the probe beam, local variations of the phase and amplitude can be mapped, enabling three-dimensional imaging of microscopic physical structures.
Another notable patent is the "Optical surface measuring apparatus and method." This invention provides a method for accurately measuring surface status, including minute variations in height, protrusions, depressions, surface damage, and surface roughness. The apparatus employs both a signal from an interferometer and a Focus Error (FE) signal from a Position Sensitive Detector (PSD) to overcome the limitations of conventional interferometers.
Career Highlights
Kyuman Cho is associated with the Industry-University Cooperation Foundation at Sogang University. His work in this institution has allowed him to collaborate with other talented individuals in the field of optical technologies.
Collaborations
Some of his notable coworkers include Kang-Hyuk Kwon and Seung-Yop Lee. Their collaborative efforts contribute to the advancement of innovative technologies in optical measurement.
Conclusion
Kyuman Cho's contributions to optical measurement technologies through his patents demonstrate his commitment to innovation in this field. His work continues to influence advancements in scanning microscopy and surface measurement techniques.