A tool, a device, and a method for zonal polishing of optical workpieces, wherein the tool has a preformed cap for forming a polishing surface, and the tool is placed against the workpiece that is to be polished in such a way that the tilt angle of the axis of rotation of the tool to the normal of the contact surface on the workpiece remains at least essentially constant and/or the size of the contact surface remains at least essentially constant.

A tool, a device, and a method for zonal polishing of optical workpieces, wherein the tool has a preformed cap for forming a polishing surface, and the tool is placed against the workpiece that is to be polished in such a way that the tilt angle of the axis of rotation of the tool to the normal of the contact surface on the workpiece remains at least essentially constant and/or the size of the contact surface remains at least essentially constant.

A spectacle lens processing device includes a drilling tool and a processor. The processor acquires a position of a hole formed in a lens and a pantoscopic angle. The pantoscopic angle is an angle in a vertical plane between a visual axis of a user and an optical axis of the lens when the user wears spectacles in which the lens after processing is mounted and faces forward. The processor determines, based on the acquired pantoscopic angle, a relative angle between the drilling tool and the lens when the hole is formed in the lens in the position of the hole.

A spectacle lens processing device includes a drilling tool and a processor. The processor acquires a position of a hole formed in a lens and a pantoscopic angle. The pantoscopic angle is an angle in a vertical plane between a visual axis of a user and an optical axis of the lens when the user wears spectacles in which the lens after processing is mounted and faces forward. The processor determines, based on the acquired pantoscopic angle, a relative angle between the drilling tool and the lens when the hole is formed in the lens in the position of the hole.

Methods for manufacturing a rotational non-axisymmetric lens which is manufactured by grinding using a machining tool, manufacturing a molding die for the lens, manufacturing a rotational non-axisymmetric mirror, and manufacturing a molding die for the mirror are provided. The provided methods are methods for manufacturing a rotational non-axisymmetric lens partially including a non-axisymmetric surface, manufacturing a molding die for the lens, manufacturing a rotational non-axisymmetric mirror partially including a non-axisymmetric surface, and manufacturing a molding die for the mirror. When a 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.

Methods for manufacturing a rotational non-axisymmetric lens which is manufactured by grinding using a machining tool, manufacturing a molding die for the lens, manufacturing a rotational non-axisymmetric mirror, and manufacturing a molding die for the mirror are provided. The provided methods are methods for manufacturing a rotational non-axisymmetric lens partially including a non-axisymmetric surface, manufacturing a molding die for the lens, manufacturing a rotational non-axisymmetric mirror partially including a non-axisymmetric surface, and manufacturing a molding die for the mirror. When a 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.

An optical element processing tool for grinding or polishing an optical element includes: a base plate including a fixing region having a predetermined curvature; and a plurality of grindstones each formed in a columnar body having a same initial height, one end surface of the columnar body having an initial shape molded into a first spherical shape conforming to a processing target spherical shape of the optical element, and the other end surface of the columnar body being fixed to the fixing region of the base plate. A grindstone deviant from a condition among the plurality of grindstones, which is the grindstone not meeting a condition determined by a processing tool diameter of the processing tool, includes an outer end portion cut out at least in parallel to a center axis of the base plate so as to meet the condition.

An optical element processing tool for grinding or polishing an optical element includes: a base plate including a fixing region having a predetermined curvature; and a plurality of grindstones each formed in a columnar body having a same initial height, one end surface of the columnar body having an initial shape molded into a first spherical shape conforming to a processing target spherical shape of the optical element, and the other end surface of the columnar body being fixed to the fixing region of the base plate. A grindstone deviant from a condition among the plurality of grindstones, which is the grindstone not meeting a condition determined by a processing tool diameter of the processing tool, includes an outer end portion cut out at least in parallel to a center axis of the base plate so as to meet the condition.

An apparatus can comprise a body and a first portion. The first portion can be coupled to the body and moveable therewith. The first portion can comprise a rigidifying material and a layer. The rigidifying material can be positioned in a chamber defined by an envelope formed of a gas-impermeable material. A pressure within the chamber can be variable between at least a lower pressure state and a higher pressure state. In the higher pressure state the material is relatively flexible, and in the lower pressure state the material can be relatively less flexible than in the higher pressure state. The layer can be manipulatable by the rigidifying material. More particularly, the layer can have a first state when the pressure within the chamber is in the higher pressure state. In the first state, the layer can be formable by the target surface to take on a desired shape that can be substantially a match of the target surface. The layer can have a second state when the pressure within the chamber is in the lower pressure state. In the second state, the layer can maintain the desired shape and can be substantially less formable than in the first state.

The method includes applying glue onto one surface of one component of the tool placed in a support of a first supporting member and/or onto one surface of another component of the tool placed in a support of a second supporting member while the support of the first supporting member and the support of the second supporting member are side by side; then driving the first supporting member and the second supporting member relative to one another to a second position where the support of the first supporting member and the support of the second supporting member are aligned; and then pressing the first supporting member and the second supporting member towards one another for applying onto each other the one surface of the one component and the one surface of the another component.