| 摘要 |
PROBLEM TO BE SOLVED: To provide a measuring method and a measuring device which measures the eccentricity quantity of a lens having at least one aspheric surface accurately in a short time. SOLUTION: This measuring method includes processes for: allowing the aspheric axis of a first surface 1a to agree with the rotation axis of an air bearing 11 for holding the lens 1 by observing the first surface 1a whose eccentricity quantity is to be measured of the lens 1 comprising aspheric surfaces wherein the first surface 1a has an aspheric surface and a second surface 1b has a plane part 1c by an interferometer 20, and by adjusting an interference fringe in one color; and measuring runout of the plane part 1c and the second surface 1b by an optical lever 30, and measuring the parallel eccentricity quantity and the tilt eccentricity quantity of the lens 1, in the state where the lens 1 is rotated with the air bearing 11. COPYRIGHT: (C)2005,JPO&NCIPI
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