Object with radially varying refractive index, and producing method and apparatus thereof

1. Field of the Invention Disclosed herein is a method of producing an object having a refractive index which varies radially from the central portion of the object toward the peripheral portion thereof. Also, an object produced by the method and an apparatus for carrying out the method are disclosed. The method comprises the steps of mounting in a rotatable reactor a solid central rotating body formed by polymerizing a first component; filling a liquid second component in the rotatable reactor around the central rotating body; rotating the central rotating body and/or the rotatable reactor to subject the first component to a dissolution, diffusion, and radial mixing into the second component; and polymerizing the dissolved first component and the second component.