Patent ID: 6801694
Filing Date: 2004-10-05
Classification: G02B

Abstract:
A face alignment device comprising:a first convex semi-spherical block having a first contact surface and a first convex semi-spherical surface on the opposite side of the first contact surface; a second convex semi-spherical block having a second contact surface and a second convex semi-spherical surface on the opposite side of the second contact surface; a first base block having a first concave portion corresponding to the first convex semi-spherical surface of the first convex semi-spherical block for rotatably holding the first convex semi-spherical block; a second base block having a second concave portion corresponding to the second convex semi-spherical surface of the second convex semi-spherical block for rotatably holding the second convex semi-spherical block; a clamping element making contact with the first contact surface and the second contact surface at an eccentric position from the center axes of the first and second convex semi-spherical blocks for securing an object; and an air layer forming means for forming an air layer between the first convex semi-spherical surface of the first convex semi-spherical block and the first concave portion of the first base block and between the second convex semi-spherical surface of the second convex semi-spherical block and the second concave portion of the second base block; wherein the first convex semi-spherical block and the second convex semi-spherical block are arranged such that the first contact surface faces the second contact surface.