Inventor

AI CHIAYU

US19 patents

⚠️ This page may combine multiple inventors who share the name “AI CHIAYU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

AI CHIAYU

WYKO CORP

Combination of white-light scanning and phase-shifting interferometry for surface profile measurements

Optical alignment system utilizing alignment spot produced by image inverter

Method for testing an optical window with a small wedge angle

Centroid approach for estimating modulation peak in broad-bandwidth interferometry

Method and apparatus for absolute optical measurement of entire surfaces of flats

Multimode-laser interferometric apparatus for eliminating background interference fringes from thin-plate measurements

Interferometric integration technique and apparatus to confine 2π discontinuity

Coaxial disc-mount for measuring flatness of computer-drive discs by interferometry

OPTOPLEX CORP

Optical path length tuner

Wide range tunable filter

Pseudo common-path DPSK demodulator

Optical performance monitoring device

Optical spectrum analyzer with continuously rotating tunable filter

HSIEH YUNG-CHIEH

Sagnac delay-line interferometer for DPSK demodulation

Step-phase interferometric optical interleaver

Bandwidth enhancement device

Optical spectrum analyzer with continuously rotating tunable filter

(unassigned)

Tunable filter for optical add/drop module

HSIEH YUNG CHIEH

Formation of a beam with a flat-top profile and elongated cross-section and use of same