Abstract: In order to adjust the optical axis of a light beam L1 in an exposure apparatus, on a support body in an XYZ three-dimensional coordinate system are mounted: a first mirror 10 having a reflective surface M1 obtained by rotating a plane parallel to the XY plane around an axis 11 parallel to the Y axis by an angle of ?; and a second mirror 20 having a reflective surface M2 obtained by rotating a plane parallel to the XZ plane around an axis 21 parallel to the X axis by an angle of ?. There are provided: position adjustment means for moving the entire support body having the two mirrors parallel to the XY plane; and angle adjustment means for adjusting the angle of the second mirror 20. The incident light L1 is reflected on the reflective surfaces M1 and M2 to be output as an outgoing light L3, where it is possible to perform an optical axis adjustment concerning position and angle by controlling the position adjustment means and the angle adjustment means.

Abstract: In order to adjust the optical axis of a light beam L1 in an exposure apparatus, on a support body in an XYZ three-dimensional coordinate system are mounted: a first mirror 10 having a reflective surface M1 obtained by rotating a plane parallel to the XY plane around an axis 11 parallel to the Y axis by an angle of ?; and a second mirror 20 having a reflective surface M2 obtained by rotating a plane parallel to the XZ plane around an axis 21 parallel to the X axis by an angle of ?. There are provided: position adjustment means for moving the entire support body having the two mirrors parallel to the XY plane; and angle adjustment means for adjusting the angle of the second mirror 20. The incident light L1 is reflected on the reflective surfaces M1 and M2 to be output as an outgoing light L3, where it is possible to perform an optical axis adjustment concerning position and angle by controlling the position adjustment means and the angle adjustment means.

Abstract: An elastic polishing tool that comes into contact with a surface to be polished of a lens and rotates to polish the surface, includes: an elastic polishing body which has a cylindrical shape and whose shape can be changed according to the surface to be polished; and a polishing pad that is adhered to one surface of the elastic polishing body opposite to the surface to be polished of the lens, wherein the polishing pad has a diameter larger than the length of an arc of the elastic polishing body in a cross section including a rotation axis of the elastic polishing tool.

Abstract: In order to adjust the optical axis of a light beam L1 in an exposure apparatus, on a support body in an XYZ three-dimensional coordinate system are mounted: a first mirror 10 having a reflective surface M1 obtained by rotating a plane parallel to the XY plane around an axis 11 parallel to the Y axis by an angle of ?; and a second mirror 20 having a reflective surface M2 obtained by rotating a plane parallel to the XZ plane around an axis 21 parallel to the X axis by an angle of ?. There are provided: position adjustment means for moving the entire support body having the two mirrors parallel to the XY plane; and angle adjustment means for adjusting the angle of the second mirror 20. The incident light L1 is reflected on the reflective surfaces M1 and M2 to be output as an outgoing light L3, where it is possible to perform an optical axis adjustment concerning position and angle by controlling the position adjustment means and the angle adjustment means.

Abstract: An elastic polishing tool that comes into contact with a surface to be polished of a lens and rotates to polish the surface, includes: an elastic polishing body which has a cylindrical shape and whose shape can be changed according to the surface to be polished; and a polishing pad that is adhered to one surface of the elastic polishing body opposite to the surface to be polished of the lens, wherein the polishing pad has a diameter larger than the length of an arc of the elastic polishing body in a cross section including a rotation axis of the elastic polishing tool.

Abstract: In order to adjust the optical axis of a light beam L1 in an exposure apparatus, on a support body in an XYZ three-dimensional coordinate system are mounted: a first mirror 10 having a reflective surface M1 obtained by rotating a plane parallel to the XY plane around an axis 11 parallel to the Y axis by an angle of ?; and a second mirror 20 having a reflective surface M2 obtained by rotating a plane parallel to the XZ plane around an axis 21 parallel to the X axis by an angle of ?. There are provided: position adjustment means for moving the entire support body having the two mirrors parallel to the XY plane; and angle adjustment means for adjusting the angle of the second mirror 20. The incident light L1 is reflected on the reflective surfaces M1 and M2 to be output as an outgoing light L3, where it is possible to perform an optical axis adjustment concerning position and angle by controlling the position adjustment means and the angle adjustment means.

Abstract: A lens surface shape is created by a near-finish surface forming rough-cutting step of creating a near-finish surface shape analogous to a lens surface shape based on a prescription of a spectacle lens from a spectacle lens base material 11 by numerically controlled cutting, and a finish-cutting step of creating the lens surface shape based on the prescription of the spectacle lens from the near-finish surface shape by numerically controlled cutting. According to this method of producing a spectacle lens, all kinds of spectacle lenses including an inner surface progressive power lens can be produced with high productivity. A complex curved surface can be mirror-polished by a polishing tool, which includes an elastic sheet 41 having a curved surface, wherein a workpiece is polished by applying a pressure to the inner surface side of the elastic sheet 41, to stretch the elastic sheet 41 and bring the outer surface side of the elastic sheet 41 into contact with the workpiece.

Abstract: A lens surface shape is created by a near-finish surface forming rough-cutting step of creating a near-finish surface shape analogous to a lens surface shape based on a prescription of a spectacle lens from a spectacle lens base material 11 by numerically controlled cutting, and a finish-cutting step of creating the lens surface shape based on the prescription of the spectacle lens from the near-finish surface shape by numerically controlled cutting. According to this method of producing a spectacle lens, all kinds of spectacle lenses including an inner surface progressive power lens can be produced with high productivity.