Method for manufacturing rotational non-axisymmetric lens, method for manufacturing rotational non-axisymmetric lens molding die, method for manufacturing rotational non-axisymmetric surface mirror, and method for manufacturing rotational non-axisymmetric surface mirror molding die

A method for manufacturing a molding die for a lens including a rotational non-axisymmetric surface,

• wherein, when the rotational non-axisymmetric surface is formed while scanning a surface of a workpiece by grinding or cutting means, the rotational non-axisymmetric surface is ground or cut by the grinding or cutting means while scanning the surface with movement in a direction along a meridional surface of the rotational non-axisymmetric surface.

A method for manufacturing a rotational non-axisymmetric surface mirror including a rotational non-axisymmetric surface,

• wherein, when the rotational non-axisymmetric surface is formed while scanning a surface of a workpiece by grinding or cutting means, the rotational non-axisymmetric surface is ground or cut by the grinding or cutting means while scanning the surface with movement in a direction along a meridional surface of the rotational non-axisymmetric surface mirror.

A method for manufacturing a molding die for a rotational non-axisymmetric surface mirror including a rotational non-axisymmetric surface,

• wherein, when the rotational non-axisymmetric surface is formed while scanning a surface of a workpiece by grinding or cutting means, the rotational non-axisymmetric surface is ground or cut by the grinding or cutting means while scanning the surface with movement in a direction along a meridional surface of the rotational non-axisymmetric surface mirror.