The invention relates to an edging pad for releasably connecting a material blank that is to be edged to a holder, wherein the edging pad has a polymeric carrier layer and adhesive coatings which are applied to both sides of the polymeric carrier layer, wherein one side of the polymeric carrier layer, which is to be connected to the holder, has an adhesive coating formed of a first adhesive, and the other side of the polymeric carrier layer, which is to be connected to the material blank, has an adhesive coating formed of a second and a third adhesive which are different from one another, such that the second adhesive provides adhesiveness to the material blank and the third adhesive is an adhesive which limits twisting and slippage of the polymeric carrier layer relative to the material blank, wherein the second adhesive and the third adhesive are applied to the other side of the polymeric carrier layer in separate regions.

A workpiece has an optical lens blank with a first lens face and a second lens face, which are arranged opposite each other and are delimited at a lens circumference, and a cover film on the first lens face, wherein a first recess in the lens blank is formed, which is open in the direction of the first lens face and which is at least partially spanned in the direction of the first lens face by the cover film. A method for the production thereof and a method for the machining thereof. The machining method is distinguished, in particular, by the cover film being gripped for the purpose of pulling it off in the area that spans the first recess.

A lens processing system used for removing a lens blank (98, 110) from an edging block (40). The system includes an elongated collet (22) that engages the mating edging block (40). The block (40) includes an enlarged groove (41) that receives a pair of blades (65, 66) extended upwardly from the floor (75) of the collet (22). Each lens blank (98,110) is formed to include a series of surface markings (191,192) to verify proper functioning of the edging machine that forms a finished lens. Each lens blank also includes a series of circular markings (117,133) arranged in diagonal rows to verify the accurate drilling of bores with the lens blank (98,110).

Disclosed is a method for manufacturing an optical lens including the following successive steps: a step of providing an optical lens attached to a blocking piece; a step of laminating a functional film on a surface of the optical lens; a step of obtaining an assembly constituted by the blocking piece, the optical lens and the functional laminated film; a step of cutting the excess film directly on the assembly, so as to reduce the film shape; and a step of deblocking the optical lens with the film, and the blocking piece.

An apparatus and a method for deblocking a lens, wherein the lens is blocked with a block material on a block piece. The block material is preheated by radiation. The blocked lens, the deblocked lens, and the deblocked block piece are handled by means of separate grippers. For deblocking, the lens and the block piece are held by opposing holding devices in a rotating manner, while a fluid jet acts on the block material from the side. After the deblocking, the lens and the block piece are cleaned simultaneously. Then, a holding device together with the deblocked lens pivot out from a working space. The deblocked lens is placed with the block side upward in a transport carrier. This makes possible a simple design and an optimized process sequence.

An apparatus and a block mold for blocking a lens are proposed, wherein the lens is blocked on a block piece by means of a block material. The space between the lens and the block piece is laterally delimited by a block mold. The block mold is preferably plate-shaped and has a plurality of block openings for forming different block sizes and has an integrated coolant channel. This enables easy and fast changing between different block sizes and very good cooling.

An apparatus for separating a first liner from a lens wafer includes: at least one air nozzle including a first open end facing an edge of the lens wafer and configured to eject a gas, the at least one air nozzle disposed proximal to a first lens wafer holder configured to hold the lens wafer having the first liner attached to a first surface of the lens wafer, a first peeling device including a second lens wafer holder configured to hold the lens wafer, a first auxiliary air nozzle facing the lens wafer and including a first opening configured to eject a gas, and a first at least one suction cup configured to contact the first liner on the first surface of the lens wafer and form a vacuum seal with the first liner, each suction cup of the first at least one suction cup being retractable in a direction away from the lens wafer.

An apparatus and a method for deblocking a lens, wherein the lens is blocked with a block material on a block piece. The block material is preheated by radiation. The blocked lens, the deblocked lens, and the deblocked block piece are handled by means of separate grippers. For deblocking, the lens and the block piece are held by opposing holding devices in a rotating manner, while a fluid jet acts on the block material from the side. After the deblocking, the lens and the block piece are cleaned simultaneously. Then, a holding device together with the deblocked lens pivot out from a working space. The deblocked lens is placed with the block side upward in a transport carrier. This makes possible a simple design and an optimized process sequence.