Method for manufacturing ophthalmic devices having optical functions including down-up values, and set of ophthalmic devices having

Abstract

The present disclosure relates to a method for manufacturing an ophthalmic device having an optical function comprising at least a lower add value, the method comprising: providing (101) a substrate having a first predetermined lower add value on a first face; and determining (102) the position of the positioning mark in the first face and a second face opposite the first face depending at least on a first predetermined add-down value on the first face of the provided substrate and on the add-down value to be imparted to the ophthalmic device.

Description

Technical Field

[0001] This disclosure relates to a method for manufacturing an ophthalmic device having optical functions including an additional light value.

[0002] This disclosure further relates to a command and control unit that includes system elements configured to run a computer program to perform at least some steps of the method.

[0003] This disclosure also relates to a manufacturing system and a computer program, the manufacturing system being configured to perform at least some steps of the method, the computer program including instructions configured to perform at least some steps of the method when the computer program is run by a computer.

[0004] This disclosure further relates to a client-server communication interface for transmitting at least some data determined by a computer program implementing at least some steps of the method to a remote computer, which implements other steps of the method when the computer program is running in a command and control unit.

[0005] The present invention also relates to an ophthalmic device assembly having different optical functions, including at least the same applied light value. Background Technology

[0006] As is well known, ophthalmic devices are manufactured by machining methods performed by a machining system that processes a substrate or blank having a so-called semi-finished surface.

[0007] Ophthalmic devices can have optical functions including downlight value and spherical lens value.

[0008] Substrates are typically selected from a substrate group that has the same predetermined material, multiple predetermined curvatures, and multiple initial downlight values ​​on the semi-finished surface of the substrate.

[0009] First, depending on the spherical lens value to be imparted to the ophthalmic device and independent of the initial downlight value, a substrate subgroup is selected from the plurality of substrates, the substrate subgroup having the same predetermined material and the same predetermined curvature.

[0010] Then, depending on the downlight value to be imparted to the ophthalmic device, a substrate is selected from the chosen substrate subgroup having the same predetermined material and the same predetermined curvature.

[0011] If available, depending on the initial value of the selected substrate, a supplementary under-light value can be added to the opposite side of the selected substrate to the semi-finished side of the substrate.

[0012] In addition, the substrate selected from the selected substrate subgroup has a so-called manufacturing mark at a predetermined position on one of the surfaces of the substrate.

[0013] Such manufacturing marks are used to position another face relative to the semi-finished face for machining.

[0014] More generally, the other side of the selected substrate is manufactured, for example, by machining, so that the ophthalmic device has a prescription-prescribed additional light value and a spherical lens value.

[0015] Then, additional markings (called positioning marks or reference marks) are added by engraving at predetermined positions on one of the surfaces of the substrate.

[0016] Such positioning markers are used to center the ophthalmic device relative to the wearer's eye. Summary of the Invention

[0017] This disclosure relates to a method for manufacturing an ophthalmic device having at least an optical function including an additional light value and made of a substrate of the type disclosed above, the method being easy and convenient to implement.

[0018] Accordingly, according to a first aspect, this disclosure provides a method for manufacturing an ophthalmic device having an optical function including at least an under-illuminated value, the method comprising the steps of: providing a substrate having a first predetermined under-illuminated value on a first surface; and wherein the method comprises the steps of: determining the position of a positioning mark in a first surface and a second surface opposite to the first surface, depending at least on the first predetermined under-illuminated value on the first surface of the provided substrate and depending on the under-illuminated value to be imparted to the ophthalmic device.

[0019] According to this disclosure, the ophthalmic device to be manufactured has positioning marks (also known as reference marks) that are determined and positioned on the first or second surface depending on a first predetermined downlight value on the first surface and on the downlight value to be assigned to the ophthalmic device.

[0020] Therefore, the substrate used for manufacturing ophthalmic devices is also selected based on the determined position of these positioning marks.

[0021] Such positioning markers are used to center the ophthalmic device relative to the wearer's eye.

[0022] Additionally, by means of the method according to this disclosure, for a given downlight value to be applied to an ophthalmic device, a substrate can be provided: the substrate has a first predetermined downlight value on a first surface and a defined position for positioning marks on a first or second surface.

[0023] It should be noted that the positioning marks may be further added to the step of providing the selected substrate, or may be provided together with the provided substrate.

[0024] Specifically, the provided substrate may include additional markings (referred to as manufacturing marks) for positioning the second surface relative to the first surface (which is a semi-finished surface) for machining. Such manufacturing marks are located at predetermined positions on the first surface.

[0025] If it is determined that the positioning mark must be located on the second surface rather than on the first surface where the manufacturing mark is located, then the positioning mark is engraved on the second surface after the second surface has been machined.

[0026] If it is determined that the positioning mark must be located on the first surface where the manufacturing mark is located, such a manufacturing mark can also be used as a positioning mark, or in a variant, the positioning mark is further engraved on the first surface after the second surface has been machined.

[0027] In other words, in addition to each having a first predetermined downlight value on the first surface, each substrate group also has, for example, the same predetermined material and the same predetermined curvature, and in this substrate group, some substrates have positioning marks on the first surface, and some other substrates do not have positioning marks on the first surface but only have manufacturing marks on the first surface. This substrate group can be used for a range of prescription optical functions and therefore for a large number of progressive ophthalmic devices.

[0028] It should be noted that the method may therefore include the following steps: engraving positioning marks at a defined location.

[0029] Positioning marks can be formed, for example, by microcircles and / or microcrosses and / or other shapes.

[0030] Location markers can be those defined with reference to the ISO 10322-2 standard in the field of ophthalmology.

[0031] Imparting optical functionality to an ophthalmic device may include spherical lens value, and the method may include the following steps:

[0032] -At least depending on the spherical lens value to be imparted to the ophthalmic device, a substrate subgroup is selected from a group of substrates with different materials and different curvatures, each substrate subgroup having a predetermined material and a first surface having a first predetermined curvature; and

[0033] -Depending on both the spherical lens value and the downlight value to be imparted to the ophthalmic device, a substrate is selected from the substrate subgroup having a predetermined material and a first predetermined curvature and a plurality of first predetermined downlight values, the substrate having a first predetermined downlight value on a first surface.

[0034] According to this disclosure, the ophthalmic device to be manufactured has an optical function, which includes at least a spherical lens value and an under-illuminated light value to be assigned to two surfaces of the ophthalmic device, wherein the first surface of the selected and provided substrate has a selected predetermined curvature selected at least according to the spherical lens value and a selected first predetermined under-illuminated light value selected at least according to the spherical lens value and the under-illuminated light value.

[0035] Because the selected substrate subgroup and the selected and provided substrates within the selected substrate subgroup are selected at least according to the spherical value to be imparted to the ophthalmic device, the selection can be completed simultaneously, allowing the selection of the selected substrate in one step, including selecting (if any) the determined positioning marks, or simply selecting the location of the determined positioning marks to be added.

[0036] In other words, in a substrate subgroup having the same predetermined material and the same predetermined curvature, for a given downlight value to be imparted to an ophthalmic device, the selected and provided substrate in the substrate subgroup may: have the same first predetermined downlight value on a first surface, or have different first predetermined downlight values ​​on a first surface for two different spherical values ​​to be imparted to the corresponding ophthalmic device; and have (if any) positioning marks on a first surface, or have the determined position of the positioning marks on a first or second surface, depending on the determined position of these marks.

[0037] Therefore, the methods described in this disclosure allow for the provision of a large number of progressive ophthalmic devices from a limited set of substrates.

[0038] In addition to providing the substrate group, a series of prescription optical functions (including a series of spherical lens values, downlight values) and the positions of defined positioning marks can be proposed for each selected and provided substrate in the substrate group and the substrate subgroup.

[0039] The foregoing indicates that, when selecting a substrate, the spherical lens value and the under-illuminated value do not function independently, but rather, in the method according to this disclosure, the spherical lens value and the under-illuminated value are combined and work together with the determination of the position of these positioning marks.

[0040] The following describes the advantageous and convenient features of the manufacturing method.

[0041] The optical functions to be imparted to an ophthalmic device include the cylindrical value, and the selection of the substrate subgroup also depends on the cylindrical value to be imparted to the ophthalmic device.

[0042] The plurality of first predetermined additional light values ​​include 3 to 5 values, for example, between 0.25 diopters and 5 diopters, with intervals between 0.5 diopters and 2 diopters.

[0043] The step of determining the location of the positioning mark further depends at least on the first predetermined curvature of the provided substrate and on the spherical value to be imparted to the ophthalmic device.

[0044] These positioning marks are located on the first and second surfaces of the provided substrate, which have the highest complexity and / or the highest downlight value, the complexity being defined by at least one of the parameters of the highest cylindrical lens gradient and the highest spherical lens gradient on the respective surface.

[0045] Determining the location of the positioning markers takes into account the numerical simulation optical quality and / or physical test optical quality of the ophthalmic device to be manufactured.

[0046] Numerical simulation of optical quality (correspondingly, physical testing of optical quality) includes the probability that the ophthalmic device to be manufactured will exhibit (correspondingly, actually exhibit) unacceptable characteristics due to manufacturing errors.

[0047] The method includes the following steps: determining a second curvature value and a second downlight value to be applied to a second surface of the provided substrate, depending on a first surface of the substrate and at least on the downlight value to be applied to the ophthalmic device.

[0048] The method includes the following steps: manufacturing a second surface of the provided substrate to impart at least a second curvature value and a second under-brightness value to the second surface; and engraving positioning marks at a defined location on a first or second surface obtained after manufacturing.

[0049] The method includes the following steps: positioning the ophthalmic device in the frame of the spectacle lens using positioning markers so that the ophthalmic device is centered relative to the wearer's eyes.

[0050] According to a second aspect, this disclosure also provides a command and control unit configured to manufacture an ophthalmic device having an optical function including at least an under-illuminated value, and includes system elements configured to run a computer program to perform at least the following steps: providing a substrate having a first predetermined under-illuminated value on a first surface; and determining the position of a positioning mark in a first surface and a second surface opposite to the first surface, depending at least on the first predetermined under-illuminated value on the first surface of the provided substrate and depending on the under-illuminated value to be imparted to the ophthalmic device.

[0051] The command and control unit may also perform the following steps: depending at least on the spherical lens value to be assigned to the ophthalmic device, selecting a substrate subgroup from a substrate group having different materials and different curvatures, each substrate subgroup having a predetermined material and including a first surface having a first predetermined curvature; and depending on both the spherical lens value and the downlight value to be assigned to the ophthalmic device, selecting a provided substrate from the substrate subgroup having a predetermined material, a first predetermined curvature, and a plurality of first predetermined downlight values, the provided substrate having a first predetermined downlight value on its first surface.

[0052] According to a third aspect, this disclosure also provides a manufacturing system comprising tools for manufacturing an ophthalmic device having an optical function including at least an under-illuminated value, and a command and control unit configured to perform at least the following steps: providing a substrate having a first predetermined under-illuminated value on a first surface; and determining the position of a positioning mark in a first surface and a second surface opposite to the first surface, depending at least on the first predetermined under-illuminated value on the first surface of the provided substrate and depending on the under-illuminated value to be imparted to the ophthalmic device.

[0053] The manufacturing system can also be configured to perform at least the following steps: determining a second curvature value and a second under-illuminance value to be applied to a second surface of the provided substrate, depending on a first surface of the provided substrate and at least depending on the under-illuminance value to be applied to the ophthalmic device; manufacturing the second surface of the provided substrate to obtain the ophthalmic device; and optionally, engraving positioning marks on the first or second surface obtained after manufacturing; and also optionally, positioning the ophthalmic device in the frame of the spectacle lens by means of the positioning marks so that the ophthalmic device is centered relative to the wearer's eye.

[0054] The manufacturing system can also be configured to perform at least the following steps: depending on the spherical lens value to be imparted to the ophthalmic device, selecting a substrate subgroup from a group of substrates having different materials and different curvatures, each of the substrate subgroups having a predetermined material and including a first surface having a first predetermined curvature; and depending on both the spherical lens value and the downlight value to be imparted to the ophthalmic device, selecting a provided substrate from the substrate subgroup having a predetermined material, a first predetermined curvature, and a plurality of first predetermined downlight values, the provided substrate having a first predetermined downlight value on the first surface.

[0055] According to the fourth aspect, this disclosure also provides a computer program including instructions configured to perform at least the following steps when the computer program is run by a computer: providing a substrate having a first predetermined downlight value on a first surface; and determining the position of a positioning mark in a first surface and a second surface opposite to the first surface, depending at least on the first predetermined downlight value on the first surface of the provided substrate and depending on the downlight value to be imparted to the ophthalmic device.

[0056] The computer program can also be configured to perform at least the following steps when the computer program is run by a computer: at least depending on the spherical lens value to be assigned to the ophthalmic device, selecting a substrate subgroup from a group of substrates having different materials and different curvatures, each of the substrate subgroups having a predetermined material and including a first surface having a first predetermined curvature; and depending on both the spherical lens value and the downlight value to be assigned to the ophthalmic device, selecting a provided substrate from a group of substrate subgroups having a predetermined material and a first predetermined curvature and a plurality of first predetermined downlight values, the provided substrate having a first predetermined downlight value on the first surface.

[0057] According to the fifth aspect, this disclosure also provides a client-server communication interface for performing a method for manufacturing an ophthalmic device having optical functions including at least an under-illuminated value, the method comprising: providing a substrate having a first predetermined under-illuminated value on a first surface; and determining the position of a positioning mark in a first surface and a second surface opposite to the first surface, depending at least on the first predetermined under-illuminated value on the first surface of the provided substrate and depending on the under-illuminated value to be imparted to the ophthalmic device; the client-server communication interface being configured to transmit at least some data, such as the position of the positioning mark, determined by a computer program implementing at least some steps of the method to a remote computer, the remote computer implementing other steps of the method when the computer program is executed in a command and control unit.

[0058] The client-server communication interface can also be used to perform the following steps: at least depending on the spherical lens value to be assigned to the ophthalmic device, selecting a substrate subgroup from a group of substrates with different materials and curvatures, each substrate subgroup having a predetermined material and including a first surface having a first predetermined curvature; and depending on both the spherical lens value and the downlight value to be assigned to the ophthalmic device, selecting a provided substrate from a group of substrates having a predetermined material, a first predetermined curvature, and a plurality of first predetermined downlight values, the provided substrate having a first predetermined downlight value on a first surface; the client-server communication interface is configured to transmit at least some data, such as the spherical lens value and the downlight value, determined by a computer program implementing at least some steps of the method to a remote computer, which implements other steps of the method when the computer program is running in a command and control unit.

[0059] According to the sixth aspect, this disclosure also provides an ophthalmic device assembly having different optical functions including at least the same downlight value, the ophthalmic devices being made of provided substrates having different first predetermined downlight values ​​on respective first surfaces of the substrates, some substrates having defined positions for positioning marks on the first surfaces, and some other substrates having defined positions for positioning marks on a second surface opposite to the first surfaces.

[0060] The ophthalmic device assembly may also have different optical functions including different spherical lens values ​​and the same downlight value. These ophthalmic devices are made of provided substrates, which have different first predetermined downlight values ​​on corresponding first surfaces of the substrates. The substrates are selected from a subgroup of substrates having the same predetermined material and the same first predetermined curvature on the corresponding first surfaces and multiple first predetermined downlight values. Attached Figure Description

[0061] The description of this disclosure will now continue in detail with reference to the accompanying drawings and the advantageous embodiments given below, by way of non-limiting examples.

[0062] Figure 1 A manufacturing system according to this disclosure is schematically depicted, the manufacturing system including machining equipment and a command and control unit, the manufacturing system being configured to perform the steps of a method for manufacturing an ophthalmic device.

[0063] Figure 2 A client-server communication interface is illustrated in the diagram, which includes system components configured to transmit at least some data determined by the method according to this disclosure to a remote data processing system.

[0064] Figure 3a It is a cross-sectional view of a substrate provided and manufactured by means of the method according to this disclosure in order to obtain an ophthalmic device.

[0065] Figure 3b yes Figure 3a The provided substrate is shown in top view.

[0066] Figure 3c yes Figure 3a Rear view of the provided substrate variant.

[0067] Figure 4 This is a block diagram illustrating the main operational steps of a method for manufacturing an ophthalmic device, which is achieved by means of... Figure 1 and Figure 2 This is obtained through the manufacturing system and / or client-server communication interface shown in the document.

[0068] Figure 5 It is a block diagram that illustrates... Figure 4 More detailed operating steps of the method for manufacturing ophthalmic devices are shown.

[0069] Figure 6 This indicates the defined table, which can be stored in... Figure 1 and Figure 2 The command and control units of the manufacturing system and / or client-server communication interface shown herein are used to determine the selected and provided substrate.

[0070] Figure 7a Indicated by, for example, by means of Figure 6 The quality diagram of the ophthalmic device made from the selected and provided substrate shows that the positioning marks are located on the first surface of the substrate.

[0071] Figure 7b Similar to Figure 7a This represents a quality diagram of an ophthalmic device made from the selected and provided substrate, wherein the positioning mark is located on a second surface opposite to the first surface of the substrate.

[0072] Figure 7c Similar to Figure 7a and Figure 7b , representing a quality diagram of an ophthalmic device made from a selected and provided substrate, wherein the positioning markers are located on both the first and second surfaces depending on the downlight value of the optical function of the ophthalmic substrate.

[0073] Figure 7d Similar to Figure 6 The difference is that it indicates the position of the positioning mark on the defined table. Detailed Implementation

[0074] This disclosure relates to a method for manufacturing an ophthalmic device from a selected and provided substrate from a defined set of substrates.

[0075] In particular, by means of the method according to this disclosure, a large number of progressive ophthalmic devices can be provided from a limited set of substrates.

[0076] Figure 1 A manufacturing system was demonstrated, which is configured to perform the manufacture of ophthalmic devices from selected and provided substrate 3.

[0077] The system may include a manufacturing machine 21 and system components generally formed by at least one command and control unit 22, which is configured to communicate with a data processing system (or control unit) of the machine 21 and is configured to run a computer program having instructions configured to implement at least the manufacturing steps of the method when the computer program is run by a computer.

[0078] Machine 21 here is a digitally controlled machine, a group of digitally controlled indicating devices and software, whose function is to give movement instructions to all the components of the machine.

[0079] Machine 21 includes a cutting tool 27 and a data processing system or control unit (not shown) configured to control the cutting tool 27, which is mounted, for example, on a movable arm.

[0080] The command and control unit 22 includes a microprocessor 23 having a memory 24, particularly non-volatile memory, which allows it to load and store computer programs (also known as software) that, when executed in the microprocessor 23, enable the implementation of methods according to this disclosure.

[0081] The non-volatile memory 24 is, for example, of the ROM ("Read-Only Memory") type.

[0082] The command and control unit 22 further includes a memory 25, particularly a volatile memory, which allows data to be stored during the execution of software and implementation of methods.

[0083] The volatile memory 25 is, for example, of the type RAM or EEPROM ("Random Access Memory" and "Electrically Erasable Programmable Read-Only Memory", respectively).

[0084] Command and control units can be integrated into the machine, at least partially. In other words, control units can be located partially or entirely outside the machine.

[0085] The command and control unit may form at least part of the machine and may include one or more command and control modules located inside and / or outside the machine.

[0086] Machine 21 is configured to machine at least one surface of the selected and provided substrate 3 to form an ophthalmic device, which is mounted on the sealing device 4 in a defined position.

[0087] Machine 21 can also be configured to engrave positioning marks on a specific location on the provided substrate after machining.

[0088] Command and control unit 22 is configured to command and control (see below). Figure 4 and Figure 5 At least some steps of the manufacturing method described.

[0089] Figure 2A client-server communication interface 26 is shown, including, for example, a so-called vendor side 29a and another so-called client side 29b, and these two sides communicate via an Internet interface 28.

[0090] The supplier side includes server 29a, which is linked to or connected to the data processing system. Figure 1 The same type of command and control unit 22a is used, and the server 29a is configured to communicate with the Internet interface 28.

[0091] The client side 29b is configured to communicate with the Internet interface 28 and connect to a data processing system or a command and control unit 22b of the same type as the supplier side.

[0092] Furthermore, the command and control unit 22b on the client side is connected to... Figure 1 The same type of manufacturing machine 21b is used to manufacture at least the surface of the ophthalmic substrate 3.

[0093] For example, the command and control unit 22b on the client side is configured to receive by the user some parameters about the ophthalmic device to be manufactured, in particular including at least optical functional parameters such as the down-illuminated value, spherical value and / or cylindrical value.

[0094] The client-side command and control unit 22b uses the Internet 28 and server 29a interface to send the received data to the supplier-side command and control unit 22a to determine other parameters, such as the position of the positioning mark on the substrate 3.

[0095] The supplier-side command and control unit 22a executes its contained computer program to determine the location of the positioning marker.

[0096] The supplier-side command and control unit 22a executes its contained computer program to select a substrate subgroup from a group of substrates with different materials and curvatures, each of the substrate subgroups having a predetermined material and including a first surface having a first predetermined curvature, depending at least on the spherical lens value to be assigned to the ophthalmic device; and to select a provided substrate 3 from the substrate subgroup having a predetermined material, a first predetermined curvature, and a plurality of first predetermined under-illuminance values, depending on both the spherical lens value and the under-illuminance value to be assigned to the ophthalmic device. The provided substrate has a first predetermined under-illuminance value on its first surface.

[0097] Using server 29a and Internet interface 28, the supplier-side command and control unit 22a sends manufacturing documents and operating parameters, including at least the determination of the location of the positioning mark on the selected and provided substrate 3.

[0098] The client-side command and control unit 22b is configured here to execute software for implementing other steps of the method for manufacturing an ophthalmic device by means of the manufacturing system 21b.

[0099] In the variant, the step of determining the location of the positioning marker can be performed by the command and control unit 22b on the client side.

[0100] In another variant, the manufacturing system can be located on the supplier side, such that the supplier-side command and control unit 22a is further configured to machine ophthalmic surfaces.

[0101] Figures 3a to 3c The selected and provided substrate 3 is shown, which will be manufactured by means of the method according to this disclosure in order to obtain an ophthalmic device.

[0102] The selected and provided substrate 3 is made of predetermined materials.

[0103] The selected and provided substrate 3 has a first surface 11, which is a semi-finished surface, and has a first predetermined curvature value and a first predetermined under-light value.

[0104] The selected and provided substrate 3 has a second side 12 opposite to the first side 11, and an edge 10 that defines the outline and joins the first side 11 and the second side 12.

[0105] exist Figure 3b In addition, the selected and provided substrate 3 also has some positioning marks 14, which are, for example, in the shape of a micro cross and located at a specific position on the first surface 11.

[0106] Specifically, manufacturing mark 14 is made on the first surface 11 of the selected and provided substrate 3 and is used to position the second surface 12 relative to the first surface 11 (which is a semi-finished surface) on the sealing device 4, at least for machining the second surface 12 to obtain an ophthalmic device having at least a finished or semi-finished second surface 13, thereby serving as a manufacturing mark.

[0107] In this respect, the second surface 13 of the finished or semi-finished product may include a second curvature value and / or a second downlight value, such that the resulting ophthalmic device has prescription optical functions including at least downlight value, spherical value and / or cylindrical value.

[0108] The finished lens will also include positioning marks. According to this disclosure, such positioning marks may be located on the first surface 11 or on the finished or semi-finished second surface 13 obtained from the second surface 12, especially on the surface with the highest complexity and / or the highest downlight value.

[0109] In other words, the positioning mark may be different from the manufacturing mark 14.

[0110] Figure 3c This is a rear view of an ophthalmic device obtained from the selected and provided substrate 3 through machining, showing the finished or semi-finished second surface 13 obtained from the manufactured second surface 12, and on this second surface are engraved positioning marks 14 in the shape of microcircles. Figure 3c The positioning mark 14 on it is either a manufacturing mark or a positioning mark.

[0111] It should be noted that the complexity is defined by at least one of the parameters of the highest cylindrical lens gradient and the highest spherical lens gradient on the corresponding surface of the selected and provided substrate 3.

[0112] Figure 4 It shows how to use by means of Figure 1 and Figure 2 The illustrated system and / or client-server communication interface are steps for manufacturing 100 ophthalmic devices from the selected and provided substrate 3, the ophthalmic devices having optical functions including at least downlight value, spherical value and / or cylindrical value.

[0113] In a first embodiment, the method includes the following steps: providing 101 a substrate having a first predetermined downlight value on a first surface 11; and determining the position of a positioning mark 14 formed on the first surface 11 and a second surface 12 opposite to the first surface 11, the position of the positioning mark 14 depending at least on the first predetermined downlight value on the first surface 11 of the selected and provided substrate 3 and on the downlight value to be applied to the ophthalmic device.

[0114] The method may then include the following steps: selecting a substrate 103 from a group of substrates having a first predetermined under-illumination value on the first surface 12 and having a positioning mark 14 in a different position or without a positioning mark, the substrate having a positioning mark 14 in a defined position or without a positioning mark.

[0115] In a variant, the method may include the following steps: engraving a 104 mark at a defined location on the provided substrate 3 (if it has not already been engraved).

[0116] In combination with the first embodiment Figure 5 In the second embodiment shown, the method further includes the step of receiving 105 optical functions, which include an additional light value, a spherical value, and (if any) a cylindrical value to be assigned to the ophthalmic device.

[0117] The method includes the following steps: selecting 106 substrate subgroups from a substrate group having different materials and different curvatures, depending at least on the spherical and (if any) cylindrical values ​​to be imparted to the ophthalmic device. Each substrate subgroup is made of the same predetermined material and each has a first surface having a first predetermined curvature.

[0118] The method includes the following steps: depending on the spherical lens value, (if any) cylindrical lens value, and downlight value to be imparted to the ophthalmic device, selecting a substrate 3 provided by 107 from the substrate subgroup having a predetermined material and a first predetermined curvature and a plurality of first predetermined downlight values, the provided substrate having a first predetermined downlight value on a first surface 11.

[0119] The plurality of first predetermined additional light values ​​may include 3 to 5 values, for example, between 0.25 diopters and 5 diopters, with intervals between 0.5 diopters and 2 diopters.

[0120] The method may then include the following steps: determining the position of the 102 positioning mark 14 based on a first predetermined downlight value, a first predetermined curvature on the first surface 11 of the selected and provided substrate 3, and the downlight value, spherical value, and (if any) cylindrical value to be imparted to the ophthalmic device.

[0121] The method may further include the following steps: determining, 108, a second curvature value and a second downlight value to be applied to the second surface 12 of the selected and provided substrate 3, depending on the first surface 11 of the selected and provided substrate 3 and at least on the downlight value to be applied to the ophthalmic device.

[0122] The method may further include the following steps: positioning the selected and provided substrate 3 by means of manufacturing marks (which may be the same as positioning marks); and manufacturing, for example by machining, a second surface 12 of the selected and provided substrate 3 to impart at least a second curvature value and a second downlight value to the second surface in order to obtain a finished or semi-finished second surface 13 of the ophthalmic device.

[0123] The method then includes (if any) the following steps: engraving 104 at a defined location on the first surface 11 or on the second surface 13 of the finished or semi-finished product obtained from the second surface 12. Figure 4 (As shown in the image) Positioning marker 14.

[0124] It should be noted that the step of determining the position of the 102 positioning mark 14 can take into account the numerical simulation optical quality of the ophthalmic device to be manufactured, which includes the probability that the ophthalmic device to be manufactured will have unacceptable characteristics due to manufacturing errors.

[0125] In variations or combinations, the step of determining the position of the 102 positioning mark 14 may take into account the physical test optical quality of the ophthalmic device to be manufactured, which includes the probability that the ophthalmic device to be manufactured will actually exhibit unacceptable characteristics due to manufacturing errors.

[0126] Figure 6This indicates the determined table, which is used to determine the selected and provided substrate 3.

[0127] Specifically, here, the form is provided for a substrate assembly made of a predetermined material and having a first predetermined curvature on its first surface.

[0128] The substrate in this substrate group has, for example, three different first predetermined light-receiving values ​​on the first surface of the substrate, namely FA1 diopter, FA2 diopter and FA3 diopter.

[0129] The table shows that the first predetermined downlight value among FA1, FA2, and FA3 can be selected depending on both the downlight value and the spherical lens value to be assigned to the ophthalmic device.

[0130] Additionally, the table shows that for a given downlight value to be applied to an ophthalmic device, a first predetermined downlight value can be selected from FA1, FA2, and FA3, depending on the spherical value to be applied to the ophthalmic device.

[0131] In other words, the table also shows that a wide range of prescription optical functions can be incorporated into ophthalmic devices for a given set of substrates.

[0132] It should be noted that, using the first predetermined downlight value and the downlight value, a second downlight value to be imparted to the second surface of the substrate can be determined. This second downlight value can be positive or negative.

[0133] Similarly, a second curvature value is assigned to the second surface of the substrate, which is thus determined at least by means of the first predetermined curvature and by means of the spherical lens value and (if any) the cylindrical lens value.

[0134] Such a table can be reproduced using at least different materials of the substrate and / or a first predetermined curvature.

[0135] Additionally, as explained below, such a table can be constructed for more than three first predetermined light values, and more generally 3 to 5 values, for example, between 0.25 diopters and 5 diopters, with intervals between 0.5 diopters and 2 diopters.

[0136] These forms can be stored Figure 1 and Figure 2 The manufacturing system and / or client-server communication interface shown herein are used in the command and control units, and can be used to determine the selected and provided substrate 3 for manufacturing ophthalmic devices.

[0137] Figure 7a This indicates the quality diagram of the ophthalmic device made from the substrate 3 selected and provided, for example by means of the table above, when the positioning mark 14 is located on the first surface 11 of the ophthalmic device.

[0138] In other words, regardless Figure 6 Regardless of the position on the table shown, the positioning mark 14 is always located on the first face 11.

[0139] It should be noted that the positioning mark can also be a manufacturing mark or can be different from the manufacturing mark.

[0140] As mentioned above, optical quality can be numerical simulation and / or physical test optical quality, respectively based on the probability that the ophthalmic device to be manufactured will have and / or actually have unacceptable characteristics due to manufacturing errors caused by positioning the selected and provided substrate on the sealing device for machining the second surface.

[0141] Optical quality is derived from simulation and categorized by grade: from grade one to grade four, corresponding to light gray to dark gray, labeled L1, L2, L3, and L4 in the attached diagram. Grade one, corresponding to the lighter gray, indicates negligible error and therefore high quality, while grade four, corresponding to the darker gray, indicates high error and therefore low quality.

[0142] In particular, Figure 7a The location of the positioning mark 14 can be determined at least from a simulation, specifically by: modeling an ophthalmic device with a positioning mark on a first surface corresponding to the anterior refractive power; simulating the positioning error of the second surface corresponding to the posterior refractive power relative to the anterior refractive power of the ophthalmic device, assuming that the anterior refractive power is correctly positioned relative to the wearer's eye; and evaluating the performance of such an ophthalmic device for the wearer.

[0143] Figure 7a The first distribution of optical quality from level one to level four is shown, depending on the optical functions of the simulated ophthalmic device, including the downlight value and the spherical lens value.

[0144] Figure 7b Similar to Figure 7a This indicates the quality diagram of the ophthalmic device made from the selected and provided substrate 3 when the positioning mark 14 is located on the second surface 12 of the ophthalmic device.

[0145] In other words, regardless Figure 6 Regardless of the position on the table shown, the positioning mark 14 is always located on the second side 12.

[0146] therefore, Figure 7bThe location of the positioning mark 14 can be determined at least from simulation, specifically by: modeling an ophthalmic device with a positioning mark in the posterior refractive power; simulating the positioning error of the anterior refractive power relative to the posterior refractive power of the ophthalmic device, assuming that the posterior refractive power is correctly positioned relative to the wearer's eye; and evaluating the performance of such an ophthalmic device for the wearer.

[0147] Figure 7b The second distribution of optical quality from level one to level four is shown, depending on the optical functions of the simulated ophthalmic device, including the downlight value and the spherical lens value.

[0148] The second distribution is significantly different from the first distribution, thus indicating that the optimal location of the positioning marker can be determined from the above simulation by means of the optical function and the table above.

[0149] in this regard, Figure 7c Therefore, similar to Figure 7a and Figure 7b And indicates the quality diagram of the ophthalmic device made from the selected and provided substrate 3 when the positioning mark 14 is located on both the first surface 11 and the second surface 12 of the ophthalmic device, depending at least on the first predetermined downlight value on the first surface 11 and depending on the first predetermined curvature and depending on the downlight value and spherical lens value to be given to the ophthalmic device.

[0150] In other words, the positioning mark 14 depends on Figure 6 The position shown on the table is on the first page 11 or the second page 12.

[0151] like Figure 7d The diagram shown is similar to Figure 6 It also shows which areas of the table are marked with the location mark 14 on the first face 11 and the second face 12.

[0152] In this example, the positioning mark 14 is in the table with FA2 and FA3 (in Figure 7d Located on the first face 11 in the area corresponding to the "Front" label in the attached figure, and in the table corresponding to FA1 (in Figure 7d The area marked "Rear" in the attached diagram is located on the second surface 12, corresponding to another area.

[0153] therefore, Figure 7c The third distribution of optical quality is shown, ranging only from the first optical quality level to the second optical quality level, depending on the optical functions of the simulated ophthalmic device, including the downlight value and the spherical lens value.

[0154] therefore, Figure 7cThe location of positioning marker 14 can be determined using the above simulation and the following method as the optimal approach: (Refer to...) Figure 7d The location of the positioning marker is selected so that it can still provide the wearer with the expected quality performance even when there is positioning error.

[0155] This third distribution can also be physically tested by the wearer to confirm the optical quality under actual use conditions.

[0156] According to this disclosure, the ophthalmic device to be manufactured therefore has positioning marks 14, which are determined and positioned on the first surface 11 or the second surface 12 depending on a first predetermined downlight value on the first surface 11 and on the downlight value to be imparted to the ophthalmic device.

[0157] Therefore, the substrate 3 for manufacturing the ophthalmic device is also selected based on the determined position of the positioning mark 14.

[0158] Additionally, by means of the method according to this disclosure, for a given downlight value to be applied to an ophthalmic device, a substrate 3 can be provided: the substrate has a first predetermined downlight value on a first surface 11 and a defined position for a positioning mark 14 on either the first surface 11 or the second surface 12.

[0159] As described above, if it is determined that the positioning mark 14 must be located on the first surface 11 where the manufacturing mark is located, such a manufacturing mark can also be used as a positioning mark, or in a variant, the positioning mark can be further engraved on the first surface after the second surface has been machined. In this case, the positioning mark 14 can be provided for the substrate 3.

[0160] In contrast, if it is determined that the positioning mark 14 must be located on the second surface 12 rather than on the first surface 11 where the manufacturing mark is located, then the positioning mark 14 is engraved on the second surface after the second surface 12 is machined. In this case, a substrate 3 without positioning marks can be provided, which can be engraved later.

[0161] In other words, in addition to each having a first predetermined downlight value on the first surface, each substrate group also has, for example, the same predetermined material and the same predetermined curvature, and in this substrate group, some substrates have positioning marks on the first surface, and some other substrates do not have positioning marks on the first surface but only have manufacturing marks on the first surface. This substrate group can be used for a range of prescription optical functions and therefore for a large number of progressive ophthalmic devices.

[0162] Therefore, the method according to this disclosure allows for the manufacture of an ophthalmic device assembly having different optical functions including at least the same downlight value, the ophthalmic devices being made from provided substrates 3 having different first predetermined downlight values ​​on respective first surfaces 11 of the substrates, some substrates having defined positions for positioning marks 14 on the first surfaces 11, and some other substrates having defined positions for positioning marks 12 on a second surface 12 opposite to the first surfaces 11.

[0163] In addition, according to this disclosure, the ophthalmic device to be manufactured has an optical function, which includes at least a spherical lens value and an under-illuminated light value to be assigned to two surfaces of the ophthalmic device, wherein the first surface 11 of the selected and provided substrate 3 has a selected first predetermined curvature selected at least according to the spherical lens value and a selected first predetermined under-illuminated light value selected at least according to the spherical lens value and the under-illuminated light value.

[0164] Since the selected substrate subgroup and the selected and provided substrates in the selected substrate subgroup are selected at least according to the spherical value to be imparted to the ophthalmic device, the selection can be completed simultaneously, so that the selected substrate can be selected in one step, including the selection of the determined positioning mark 14.

[0165] In other words, in this substrate subgroup having the same predetermined material and the same predetermined curvature, for a given downlight value to be imparted to the ophthalmic device, the selected and provided substrate 3 in this substrate subgroup may: have the same first predetermined downlight value on the first surface 11, or have different first predetermined downlight values ​​on the first surface 11 for two different spherical values ​​to be imparted to the corresponding ophthalmic device; and have (if any) positioning marks 14 on the first surface 11, or have the determined position of the positioning marks 14 on the first surface 11 or the second surface 12, depending on the determined position of these positioning marks.

[0166] Therefore, the method according to this disclosure allows for the provision of a large number of progressive ophthalmic devices from a limited set of substrates 3.

[0167] In particular, the methods according to this disclosure allow for the use of, for example, methods based on... Figure 6 and Figures 7a to 7d The so-called "semi-finished mapping" refers to the complexity of the ophthalmic device located on the first or second surface, and its design must take into account that: although there may be positioning errors between the opposite surfaces of the ophthalmic device, it can still provide good performance for the wearer.

[0168] The ophthalmic device assembly may also have different optical functions including different spherical lens values ​​and the same downlight value. These ophthalmic devices are made of the provided substrate 3, which have different first predetermined downlight values ​​on the respective first surface 11 of the substrate. The substrate is selected from a subgroup of substrates having the same predetermined material and the same first predetermined curvature and multiple first predetermined downlight values ​​on the respective first surface 11.

[0169] In addition to providing the substrate group, a series of prescription optical functions (including a series of spherical values, downlight values) and the position of a defined positioning mark 14 may be proposed for each selected and provided substrate 3 in the substrate group and the substrate subgroup.

[0170] The foregoing also indicates that, when selecting substrate 3, the spherical lens value and the under-illuminated value do not simply function independently, but rather, in the method according to this disclosure, the spherical lens value and the under-illuminated value are combined and work together with the determination of the position of these positioning marks 14.

[0171] Furthermore, the methods described in this disclosure can be used to manufacture aesthetically pleasing ophthalmic devices, such as those with thinner edges and limited central thickness despite having progressive prescription features.

[0172] In practice, the distribution of the down-illuminance value on the opposite side of an ophthalmic device can be defined based on aesthetic considerations. For example, if we want to obtain an ophthalmic device that is as flat as possible, we can choose a substrate with a low down-illuminance value on the front side, allowing for a higher down-illuminance value to be added on the back side. In another example involving hyperopic high down-illuminance, the ophthalmic device can become biconvex if the substrate has too low a primary curvature. A substrate with most or all of the down-illuminance value of the ophthalmic device can be chosen to obtain a flatter ophthalmic device without biconvexity.

[0173] More generally, it should be noted that this disclosure is not limited to the examples described and presented.

Claims

1. A method for manufacturing an ophthalmic device having at least an added optical value, the method comprising: Provide (101) a substrate (3) having a first predetermined downlight value on a first surface (11); wherein the method includes: determining (102) the position of a positioning mark (14) in the first surface and a second surface (12) opposite to the first surface, depending at least on the first predetermined downlight value on the first surface of the provided substrate and depending on the downlight value to be imparted to the ophthalmic device.

2. The method according to claim 1, wherein, To impart the optical function of the ophthalmic device, including a spherical lens value, the method includes: -At least depending on the spherical lens value to be imparted to the ophthalmic device, select (106) substrate subgroups from a group of substrates with different materials and different curvatures, each of the substrate subgroups having a predetermined material and a first surface (11) having a first predetermined curvature; and - Depending on both the spherical lens value and the downlight value to be imparted to the ophthalmic device, a substrate (3) is selected (107) from the substrate subgroup having a predetermined material and a first predetermined curvature and a plurality of first predetermined downlight values, the provided substrate having the first predetermined downlight value on the first surface (11).

3. The method according to claim 2, wherein, The optical functions to be assigned to the ophthalmic device include a cylindrical lens value, and the selection of the substrate subgroup also depends on the cylindrical lens value to be assigned to the ophthalmic device.

4. The method according to any one of claims 2 and 3, wherein, The plurality of first predetermined downlight values ​​include 3 to 5 values, for example, between 0.25 diopters and 5 diopters, wherein the interval is between 0.5 diopters and 2 diopters.

5. The method according to any one of claims 2 to 4, wherein, The location of the positioning mark (14) is determined further by at least the first predetermined curvature of the substrate (3) provided and by the spherical value to be imparted to the ophthalmic device.

6. The method according to any one of claims 1 to 5, wherein, The positioning mark (14) is located on a surface of the first surface (11) and the second surface (12) of the provided substrate (3), the surface having the highest complexity and / or the highest downlight value, the complexity being defined by at least one of the parameters of the highest cylindrical gradient and the highest spherical gradient on the respective surface.

7. The method according to any one of claims 1 to 6, wherein, Determining the position of the (102) positioning mark (14) takes into account the numerical simulation optical quality and / or physical test optical quality of the ophthalmic device to be manufactured.

8. The method according to any one of claims 1 to 7, comprising determining (108) a second curvature value and a second under-illumination value to be applied to a second surface (12) of the provided substrate (3) depending on a first surface (11) of the provided substrate and at least depending on the under-illumination value to be applied to the ophthalmic device.

9. The method of claim 8, comprising manufacturing a second surface (12) of the provided substrate (3) to impart at least the second curvature value and the second downlight value to the second surface; and optionally, engraving the positioning mark (14) at a defined location on the first surface (11) or the second surface (12) obtained after manufacturing.

10. A command and control unit configured to manufacture an ophthalmic device having an optical function including at least an under-illuminated value, and comprising a system element configured to run a computer program to perform at least the following steps: providing (101) a substrate (3) having a first predetermined under-illuminated value on a first surface (11); and determining (102) the position of a positioning mark (14) in the first surface and a second surface (12) opposite to the first surface, depending at least on the first predetermined under-illuminated value on the first surface of the provided substrate and depending on the under-illuminated value to be imparted to the ophthalmic device.

11. A manufacturing system comprising tools for manufacturing an ophthalmic device having an optical function including at least an under-illuminated value, and a command and control unit, the system being configured to perform at least the following steps: providing (101) a substrate (3) having a first predetermined under-illuminated value on a first surface (11); and determining (102) the position of a positioning mark (14) in the first surface and a second surface (12) opposite to the first surface, depending at least on the first predetermined under-illuminated value on the first surface of the provided substrate and depending on the under-illuminated value to be imparted to the ophthalmic device.

12. The manufacturing system of claim 11, wherein the manufacturing system is configured to perform the following steps: determining (108) a second curvature value and a second under-illuminance value to be assigned to a second surface (12) of the provided substrate (3) depending on a first surface (11) of the provided substrate and at least depending on the under-illuminance value to be assigned to the ophthalmic device; manufacturing (110) the second surface of the provided substrate to assign at least the second curvature value and the second under-illuminance value to the second surface, thereby obtaining the ophthalmic device; and optionally, engraving the positioning mark (14) on the first surface or the second surface obtained after manufacturing; and also optionally, positioning the ophthalmic device in the frame of a spectacle lens by means of the positioning mark so that the ophthalmic device is centered relative to the wearer's eye.

13. A computer program comprising instructions configured to perform at least the following steps when the computer program is executed by a computer: providing (101) a substrate (3) having a first predetermined downlight value on a first surface (11); and determining (102) the position of a positioning mark (14) in the first surface and a second surface (12) opposite to the first surface, depending at least on the first predetermined downlight value on the first surface of the provided substrate and depending on the downlight value to be imparted to the ophthalmic device.

14. A client-server communication interface for performing a method for manufacturing an ophthalmic device having at least an under-illuminated optical function, the method comprising: Provide (101) a substrate (3) having a first predetermined downlight value on the first surface (11); The position of the positioning mark (14) in the first surface and the second surface (12) opposite to the first surface is determined (102) based at least on a first predetermined downlight value on the first surface of the provided substrate and based on the downlight value to be applied to the ophthalmic device; the client-server communication interface is configured to transmit at least some data, such as the position of the positioning mark, determined by a computer program implementing at least some steps of the method to a remote computer, which implements other steps of the method when the computer program is running in a command and control unit.

15. An ophthalmic device assembly having different optical functions including at least the same downlight value, the ophthalmic device being made of a provided substrate (3) having different first predetermined downlight values ​​on corresponding first surfaces (11) of the substrate, some substrates having defined positions for positioning marks (14) on the first surfaces, and some other substrates having defined positions for positioning marks (14) on a second surface (12) opposite to the first surfaces.

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