Yin-Chieh Lai

Title: Yin-Chieh Lai: Optical Measurement and Displacement Sensing Patents

Introduction

Yin-Chieh Lai is an inventor associated with Taichung, Taiwan. Her patent work includes technologies for measuring optical-fiber dispersion and detecting displacement and rotation. She is credited with 4 patents.

Latest Patents

“System and Method for Measuring Dispersion” describes a technique for determining dispersion in an optical fiber. A periodic frequency-swept pulse light source generates a signal with periodic wavelength variations, which is transmitted through a test fiber. The system detects the signal after it passes through the fiber and transforms it into an RF spectrum. By analyzing slow periodic variations in pulse timing, the method determines the fiber’s dispersion value.

“Displacement Measurement System and Method Thereof” uses a coherent light source, a two-dimensional grating, a photo sensor, and signal-processing equipment. The grating produces a zero-order beam and multiple first-order diffraction beams. Interference fringes formed on the sensor allow the system to calculate displacement in different directions from phase differences. The system can also determine the grating’s rotational angle from the diffraction pattern.

Career Highlights

Lai’s listed organizational affiliations include National Yang Ming Chiao Tung University and the Industrial Technology Research Institute. Her patent portfolio reflects work in optical measurement and sensing systems.

Collaborations

Her listed collaborators include Kuei-Chu Hsu and Chia-Hua Chan. Their names are associated with her patent-related work.

Conclusion

Yin-Chieh Lai’s patents address practical measurement challenges, applying optical and signal-processing techniques to fiber dispersion, displacement, and rotation sensing.