Patent ID: 8958078
Filing Date: 2015-02-17
Classification: G01B,G03F

Abstract:
1. A two-dimensional position-sensitive sensor-based system for positioning an object having six degrees of freedom in space, characterized in that the system comprises a semiconductor laser ( 1 ), an optical fiber collimator ( 2 ), an input optical fiber ( 3 ), an optical fiber splitter ( 4 ), a first output optical fiber ( 7 ), a first filter plate ( 6 ), a first PSD sensor ( 5 ), a second output optical fiber ( 10 ), a second filter plate ( 9 ), a second PSD sensor ( 8 ), a third output optical fiber ( 13 ), a third filter plate ( 12 ), a third PSD sensor ( 11 ) and a signal processing system; wherein, laser emitted by the semiconductor laser ( wherein, the first PSD sensor (