Tuan H Phan

Title: The Innovations of Tuan H. Phan in Optical Imaging Systems

Introduction

Tuan H. Phan, an accomplished inventor based in Lynwood, Washington, has made significant contributions to the field of optical imaging systems with a total of four patents to his name. His innovative work revolves around improving accuracy in measurements and enhancing imaging techniques.

Latest Patents

Among his recent patents is a method for modulation transfer function test compensation for test pattern duty. This patent focuses on improving the accuracy of frequency response measurements in linear systems through advanced optical imaging techniques. The process involves illuminating and capturing an input test pattern, with a processor that measures the modulation transfer function while determining a compensating factor for errors in the input test pattern duty cycle. Notably, the use of a windowed fast Fourier transform on a grayscale image helps to adjust amplitude values of odd harmonics, thus correcting the resolution target duty cycle errors.

Another notable patent developed by Tuan is related to astigmatism measurement apparatus and methods based on a focal plane. This innovation leverages a computer to analyze image data received from a star-shaped optical target. By calculating angle-dependent boundary sharpness, Tuan’s method can identify distortions in point spread functions that reveal astigmatism. The process involves a meticulous Z panning of a microscope slide stage, allowing for precise analysis of changes as the target moves through and across focal points.

Career Highlights

Tuan H. Phan’s expertise and consistent contributions highlight his position as a leading inventor in his field. His work at Neopath, Inc. has reinforced the importance of innovation in optical instrumentation concerning medical and technical applications.

Collaborations

Tuan collaborates with esteemed colleagues such as James K. Riley and Keith L. Frost, further enriching the innovative environment at Neopath, Inc. Their combined knowledge and experience contribute to the success of their projects and the advancement of their technologies.

Conclusion

Through his innovative inventions and collaborative efforts, Tuan H. Phan continues to make a notable impact in the field of optical imaging systems. His work not only enhances measurement accuracy but also paves the way for future advancements in technology, reflecting the essence of innovation in scientific research and practical applications.