Fabricating a prescription optical element include providing a glass substrate layer and coupling an optical plastic layer to the glass substrate layer. A prescription surfaces is formed on an eyeward side of the optical plastic layer that is opposite an object side of the optical plastic layer. The object side is a planar surface that overlays the glass substrate layer and the glass substrate layer has a glass thickness to provide rigidity to the prescription optical element.

Disclosed is a method of preparing an operation of surfacing of a lens blank to transform the lens blank into a generated lens having a predetermined prism corresponding to an inclination between a front surface and a back surface of the generated lens at least locally. The method includes: for a plurality of devices destined to interact with the lens blank during the operation of surfacing to manufacture the predetermined prism of the generated lens, attributing a priority order to each; based on the priority order, attributing to each device a prism portion which is zero or included in a respective range delimited by a respective minimum prism portion and a respective maximum prism portion, the prism portion representing contribution of the corresponding device to the prism of the generated lens, for further interaction of each device with the lens blank during the operation of surfacing.

A blocking device for positioning and blocking an optical element to an insert at a given position, including an insert having a surface intended to be blocked against a face of the optical element with a glue material, the insert being positioned in respect with a blocking station; at least three pins to support the optical element at the given position, wherein the height of the extremity of each pin is adjustable independently of each other, the extremities being configured to position the optical element at the given position; and a locking device to hold the position of the optical element at the given position while the glue material is solidifying, the locking device including a lock associated with each pin.

An optical element includes a glass substrate layer and an optical plastic layer. The optical plastic layer has a planar surface. A prescription surface may be formed in the optical plastic layer opposite the planar surface.

The supply systems for providing spectacle ophthalmic lenses have improved efficacy, in particular with respect to lens blank picking performance and/or lens manufacturing performance.

A lens blocker includes a drive cam having a blocker arm guide groove; a blocker arm coupled to the drive cam to be movable up and down along the drive cam or to be rotatable about the drive cam, and having a blocker arm guide formed at one end thereof, wherein the blocker arm guide is inserted into the blocker arm guide groove of the drive cam and moves along the blocker arm guide groove; a leap block mount (50), to which a leap block to be attached to a blank lens is mounted and which is coupled to the blocker arm; a blocker arm base moving the blocker arm up and down along the drive cam; and a lens mount onto which the blank lens, is mounted.

Disclosed is a lens holding block for positioning and retaining a lens substrate in a processing machine, including a bottom part that is able to immobilize the lens holding block in the processing machine and an upper part. The upper part includes a chamber wherein is housed and attached a porous article so as to receive the lens substrate to be processed and which is able to be impregnated with a fluid, and a method for positioning and retaining a lens substrate onto a lens holding block.

Disclosed is a method of manufacturing an ophthalmic lens to be mounted into a frame, including: a step of acquiring an optical prescription for the future wearer of the ophthalmic lens and an information relative to the ophthalmic lens and/or to the future wearer and/or to the frame; a step of calculating a surfacing instruction of the ophthalmic lens, the surfacing instruction being determined so that the ophthalmic lens once surfaced satisfies the optical prescription; and a step of surfacing during which the at least one optical face of the ophthalmic lens is surfaced according to the surfacing instruction. During the step of calculating, the surfacing instruction is calculated so that the optical face of the ophthalmic lens once surfaced includes a mark that results from the step of surfacing and that forms a code associated with the information.

A method implemented by computer for processing an unfinished optical lens member for manufacturing an optical lens, the unfinished optical lens member having an unfinished surface and an aspherical finished surface having a first reference system with a first reference point, and the optical lens to be manufactured including first and second surfaces, the first surface including a second reference system with a second reference point and included in the aspherical finished surface of the lens member, the method including: providing an unfinished optical lens member data; providing an optical function; providing a reference point position; providing an optical lens parameter; determining a reference system; determining a first surface dataset; and determining a second surface dataset.

A lens holder assembly (49) and method of using the lens holder assembly (49) to mark an ophthalmic lens (3) is provided. The lens holder assembly (49) comprises a stem (61) having a central axis and a first opening (5) extending along the central axis of the body (65), a second opening (7) integrated within the stem (61) such that the second opening (7) is substantially parallel to the first opening (5), and at least one illumination source positioned within the second opening (7). The illumination source is capable of emitting light through the second opening (7) for illuminating at least a portion of an ophthalmic lens (3). At least a portion of the lens (3) is placed over the first opening (5). Suction is applied to the lens (3), and a marking is applied to a surface of the lens (3).