A method for controlling an eyeglass lens processing device includes: polishing the lens, and measuring a separation distance between a movable block and a carriage using a Hall sensor detection unit, in an n.sup.th rotation direction of what is obtained by equally dividing an angle of 360 degrees covered by one rotation of the lens rotation axis into m (S100); determining whether the separation distance in the n.sup.th rotation is less than a predetermined separation distance upper limit (S200); determining whether the separation distance in the n.sup.th rotation is greater than or equal to a predetermined separation distance lower limit (S300) if the separation distance in the n.sup.th rotation is less than the predetermined separation distance upper limit in S200; and rotating the lens to an n+1.sup.th rotation position (S400) if the separation distance in the n.sup.th rotation is greater than or equal to the predetermined separation distance lower limit in S300.

A method for controlling an eyeglass lens processing device includes: polishing the lens, and measuring a separation distance between a movable block and a carriage using a Hall sensor detection unit, in an n.sup.th rotation direction of what is obtained by equally dividing an angle of 360 degrees covered by one rotation of the lens rotation axis into m (S100); determining whether the separation distance in the n.sup.th rotation is less than a predetermined separation distance upper limit (S200); determining whether the separation distance in the n.sup.th rotation is greater than or equal to a predetermined separation distance lower limit (S300) if the separation distance in the n.sup.th rotation is less than the predetermined separation distance upper limit in S200; and rotating the lens to an n+1.sup.th rotation position (S400) if the separation distance in the n.sup.th rotation is greater than or equal to the predetermined separation distance lower limit in S300.

A method of preparing individual spectacle lenses (L) in accordance with a prescription order comprises the steps of: (i) blocking, a provided lens blank (LR) as workpiece on a block piece provided from a plurality of block pieces (B) from a block piece store (BL), (ii) processing the blocked lens blank at least at a second surface so as to obtain a blocked, processed spectacle lens (L) as workpiece, and (iii) deblocking the processed spectacle lens from the block piece, wherein the workpiece, optionally in the blocked state, is transported between the steps (i) to (iii) in one of a plurality of provided transport boxes (T). In the method, the block pieces prior to the step (i) of blocking are stored in the transport boxes in the block piece store and, for the step (i) of blocking, are provided in the transport boxes from the block piece store.

A method of preparing individual spectacle lenses (L) in accordance with a prescription order comprises the steps of: (i) blocking, a provided lens blank (LR) as workpiece on a block piece provided from a plurality of block pieces (B) from a block piece store (BL), (ii) processing the blocked lens blank at least at a second surface so as to obtain a blocked, processed spectacle lens (L) as workpiece, and (iii) deblocking the processed spectacle lens from the block piece, wherein the workpiece, optionally in the blocked state, is transported between the steps (i) to (iii) in one of a plurality of provided transport boxes (T). In the method, the block pieces prior to the step (i) of blocking are stored in the transport boxes in the block piece store and, for the step (i) of blocking, are provided in the transport boxes from the block piece store.

A method and device for milling a large-diameter aspheric surface by using a splicing method and a polishing method to solve the problems of large time consumption and serious tool wear in the machining of a meter-scale large-diameter aspheric surface are disclosed. where an aspheric surface is discretized into a series of rings with different radii, and the rings are sequentially machined via generating cutting by using an annular grinding wheel tool with an outer diameter less than ¼ of a diameter of the aspheric surface; the rings are equally spaced, there are a total of N rings, and a width of any ring is jointly determined by the N.sup.th ring, the (N−1).sup.th ring, positioning accuracy and a generatrix equation of the aspheric surface; and the aspheric surface is enveloped by a large number of rings. A contact area between the tool and a workpiece surface is rings.

The present invention is a method for producing a spectacle lens from a lens material, and includes: a marking step (step S10) of marking an identification mark for identifying the spectacle lens, and a processing information mark which is used to process a lens blank and includes a tray identification 2D code, a tray identification code, a shape line and a position mark by forming a hole or a groove in a convex surface of the lens material by laser; and a concave surface machining processing step (step S13) of reading the processing information mark, and machining a concave surface of the lens blank based on the read processing information mark.

The present invention is a method for producing a spectacle lens from a lens material, and includes: a marking step (step S10) of marking an identification mark for identifying the spectacle lens, and a processing information mark which is used to process a lens blank and includes a tray identification 2D code, a tray identification code, a shape line and a position mark by forming a hole or a groove in a convex surface of the lens material by laser; and a concave surface machining processing step (step S13) of reading the processing information mark, and machining a concave surface of the lens blank based on the read processing information mark.

A method for producing a spectacle lens from a lens material and includes: a marking step of marking an identification mark for identifying the spectacle lens, and a processing information mark which is used to process a lens blank and includes a tray identification 2D code, a tray identification code, a shape line and a position mark by forming a hole or a groove in a convex surface of the lens material by laser; and a concave surface machining processing step of reading the processing information mark, and machining a concave surface of the lens blank based on the read processing information mark.

A method for producing a spectacle lens from a lens material and includes: a marking step of marking an identification mark for identifying the spectacle lens, and a processing information mark which is used to process a lens blank and includes a tray identification 2D code, a tray identification code, a shape line and a position mark by forming a hole or a groove in a convex surface of the lens material by laser; and a concave surface machining processing step of reading the processing information mark, and machining a concave surface of the lens blank based on the read processing information mark.

An eyeglasses lens machining apparatus works to perform a check operation implementation step of causing the apparatus to implement a check operation for checking a malfunction state of an operation of the apparatus, a self-restoration step of updating a calibration state of the apparatus related to the malfunction state, to self-restore the apparatus from the malfunction state, and a determination step of determining whether to shift to the self-restoration step, based on a result of the check operation. The apparatus works to further perform a measures output step of outputting information related to measures against an operation failure of a component in the apparatus, in which, in the determination step, it is determined whether to shift to the measures output step or shift to the self-restoration step, based on the result of the check operation.