A method for polishing a workpiece in the production of an optical element, in particular for microlithography, wherein a relative movement takes place between a polishing tool (300) and a workpiece surface (110, 120, 210) being machined. A polishing tool surface (215, 315) of the polishing tool (300) is formed by a viscoelastic polishing medium (303), wherein the polishing tool surface has an average diameter which is less than 50% of the average diameter of the workpiece surface being machined. The polishing tool surface during polishing is guided by an overrun distance beyond at least one edge (110a, 110b, 120a, 120b, 210a, 210b) delimiting the workpiece surface being machined, wherein the average diameter of the polishing tool surface is at least twice the overrun distance.

The invention relates to a method for manufacturing an ophthalmic lens having at least one optical function, comprising the step of providing a starting optical system of the lens, having a basic optical function and the step of additively manufacturing an additional optical element of the lens, by deposition of multiple predetermined bulking components made of at least one material having a predetermined refractive index, directly onto the front surface and/or the rear surface of the starting optical system; wherein the additive manufacturing step comprises the step of determining a manufacturing guideline for the additional optical element on the basis of the characteristics of said at least one optical function to be provided to the lens, the characteristics of said at least one basic optical function, the geometric characteristics of the starting optical system, and the predetermined refractive index of the material.

The invention relates to a method for manufacturing an ophthalmic lens having at least one optical function, comprising the step of providing a starting optical system of the lens, having a basic optical function and the step of additively manufacturing an additional optical element of the lens, by deposition of multiple predetermined bulking components made of at least one material having a predetermined refractive index, directly onto the front surface and/or the rear surface of the starting optical system; wherein the additive manufacturing step comprises the step of determining a manufacturing guideline for the additional optical element on the basis of the characteristics of said at least one optical function to be provided to the lens, the characteristics of said at least one basic optical function, the geometric characteristics of the starting optical system, and the predetermined refractive index of the material.

An optical machine (AV) for treatment and/or processing optical workpieces (L) has a machine frame (MG) on which a workpiece holding arrangement (WH) is movably supported and at least two treatment and/or processing devices (DB1, DB2, DB3) for treatment and/or processing a workpiece. The workpiece holding arrangement has a plurality of partition walls (TW) which separate and delimit at least three work spaces (AR1, AR2, AR3, AR4) from one another. The work spaces can be moved, together with the workpiece holding arrangement.

To each work space, a workpiece holder (CH) is assigned for the purpose of parallel use of the work spaces. Each work space can be moved, together with the workpiece holding arrangement, with respect to the machine frame in a movement cycle from a loading station (PS) on the machine frame, via stationary treatment and/or processing stations (DS, CS) which are spatially distanced from the loading station.

A hydraulic arrangement (HA) for an apparatus (AV) for deblocking optical workpieces (L), from associated block pieces (B), includes a nozzle arrangement (DA) for delivery of high pressure jets of pressure means for deblocking the workpiece from the associated block piece at a first pressure and for cleaning the blocked workpiece and/or block piece at least one second pressure which is different from the first pressure. Furthermore, there is a pump device (PE) which applies pressure in a defined manner to the pressure means and conveys it under pressure to the nozzle arrangement. The pump device has at least one high pressure pump (HP1, HP2) which is drivable by an associated rotary drive (SM1, SM2), the speed of which is modifiable in order to adjust the first pressure or the second pressure.

The invention relates to a method for manufacturing an ophthalmic lens having at least one optical function, comprising the step (200) of providing a starting optical system of the lens, having a basic optical function and the step (500) of additively manufacturing an additional optical element of the lens, by deposition of multiple predetermined bulking components made of at least one material having a predetermined refractive index, directly onto the front surface and/or the rear surface of the starting optical system; wherein the additive manufacturing step comprises the step of determining a manufacturing guideline for the additional optical element on the basis of the characteristics of said at least one optical function to be provided to the lens, the characteristics of said at least one basic optical function, the geometric characteristics of the starting optical system, and the predetermined refractive index of the material.

The invention relates to a method for manufacturing an ophthalmic lens having at least one optical function, comprising the step (200) of providing a starting optical system of the lens, having a basic optical function and the step (500) of additively manufacturing an additional optical element of the lens, by deposition of multiple predetermined bulking components made of at least one material having a predetermined refractive index, directly onto the front surface and/or the rear surface of the starting optical system; wherein the additive manufacturing step comprises the step of determining a manufacturing guideline for the additional optical element on the basis of the characteristics of said at least one optical function to be provided to the lens, the characteristics of said at least one basic optical function, the geometric characteristics of the starting optical system, and the predetermined refractive index of the material.

Disclosed is a system for edging ophthalmic lenses, including: a first database table including first data relating to referenced eyewear frames; a second database table including second data relating to corrections to apply to the first data; and a processing unit suitable to calculate an edging setpoint as a function of at least a datum read in the first database table, corrected by a datum read in the second database table, the edging setpoint being suitable to be used by an edging machine to edge an ophthalmic lens along a final outline.

The method includes the steps of: providing spectacles including a template eyeglass having a mounting portion inserted in a groove of an arc and being to be replaced by a prescription eyeglass having a step-back portion with the same conformation as the mounting portion; providing a set of visible marks on the template eyeglass independently of the arc; having an outline editor providing a visualization of the template eyeglass provided with the visible marks; determining through observation of the spectacles the location—with respect to the visible marks—of points of the arc from which the template eyeglass projects; entering on the provided visualization the so determined locations of the points of the arc; and outputting from the editor the data representative of an edited outline based on the point locations so entered on the provided visualization, whereby the edited outline is the outline of the shoulder.

Method for machining an optical surface of an optical lens, including: a lens blank providing step, during which a lens blank blocked on a lens blocker is provided; a clamping step, during which the lens blocker is clamped in a lens machining device; a tilting step, during which the lens blank and lens blocker are tilted relative to the rotation axis of the lens machining device; a surface position determining step, during which the position of the surface to be machined is determined based on the tilt angle of the lens blank and lens blocker relative to the rotation axis of the lens machining device; and a machining tool configuration step, during which the operational parameters of the lens machining tool are configured to manufacture the surface to be manufactured according to the determined surface position so the desired optical properties of the optical lens are respected.