Company Filing History:
Years Active: 1992-1995
Title: Paul J Caber: Innovator in Interferometry
Introduction
Paul J Caber is a notable inventor based in Tucson, AZ, who has made significant contributions to the field of interferometry. With a total of five patents to his name, Caber has developed innovative technologies that enhance measurement accuracy in various applications.
Latest Patents
Caber's latest patents include a groundbreaking combination of white-light scanning and phase-shifting interferometry. This interferometric apparatus integrates white-light VSI and single-wavelength PSI capabilities to improve the accuracy of height measurements in steep regions and areas with large inter-pixel steps on the test surface. The technique involves performing VSI measurements to obtain a coarse profile of the test surface, followed by PSI measurements to achieve a fine profile. Offsets between the two sets of measurements are calculated to correct for any misalignments and phase shifts, ultimately enhancing the quality of height data.
Another notable patent is the combination of motorized and piezoelectric translation for long-range scanning. This scanning interferometer utilizes a DC gear motor in a closed-loop configuration with an LVTD position sensor. The motor's rotational motion produces translation along the optical axis, allowing for constant-speed scans. Non-linearities in speed are corrected by adjusting the motor voltage, ensuring precise measurements.
Career Highlights
Caber works at Wyko, Inc., where he continues to innovate and develop advanced measurement technologies. His work has significantly impacted the field of optical measurement, providing solutions that enhance the accuracy and efficiency of various applications.
Collaborations
Caber collaborates with esteemed colleagues, including Donald K Cohen and Chris P Brophy, who contribute to his innovative projects and research endeavors.
Conclusion
Paul J Caber is a distinguished inventor whose work in interferometry has led to significant advancements in measurement technology. His innovative patents and collaborations reflect his commitment to enhancing accuracy in optical measurements.