Methods and arrangements for producing ophthalmic devices

Abstract

The invention relates to a method for producing an ophthalmic device, the method comprising: providing a tube transparent to electromagnetic radiation, filling the transparent tube with a liquid curable by electromagnetic radiation, introducing a first component of the ophthalmic device into the transparent tube, supplying the first component to a tomography printing apparatus by laminar flow, a data record consisting of an image of a second component of the ophthalmic device is created and / or provided, the curable liquid is tomographically printed in the transparent tube by electromagnetic radiation using the created and / or provided data record as a starting point to form the second component, and the curable liquid is printed in the transparent tube by means of electromagnetic radiation. The creation and / or provision of the data record and the tomographic printing are implemented in such a way that the second component is arranged on and / or at least partially surrounds the first component, and the first component and the second component arranged thereon are removed from the at least one tomographic printing device by laminar flow. The invention also relates to an arrangement.

Description

Technical Field

[0001] The present invention relates to a method and an arrangement for producing an ophthalmic device. Background Art

[0002] Ophthalmic devices, such as intraocular lenses, are conventionally produced, in particular, by turning. For this purpose, a starting material is first prepared by polymerization. A blank is subsequently cut from the starting material. In the case of hydrophilic intraocular lenses, the blank is fixed to the lathe by wax, while in the case of hydrophobic intraocular lenses, the blank is fixed to the lathe by freezing at approximately -20°C. A computer-controlled robotic arm equipped with a diamond tool head processes the intraocular lens, for example, from the blank rotating in a lathe. However, this is a complex and expensive method. It is also disadvantageous that the diamond tool head used during turning leaves grooves on the surface of the ophthalmic device, which reduce the optical quality of the ophthalmic device.

[0003] DE 102020108375 B3 discloses a method for producing an intraocular lens by tomographic printing. The method comprises the following steps: providing a container, which is transparent to electromagnetic radiation and in which a liquid that can be cured by the electromagnetic radiation is arranged; irradiating the liquid with a set of images formed by the electromagnetic radiation and each depicting an intraocular lens, wherein each image in the set of images is irradiated into the liquid at a different angle of incidence relative to a reference plane extending through the liquid, whereby the liquid is cured and the cured liquid forms an intraocular lens, an actuator, a solar module and / or a sensor are arranged in the liquid and the intraocular lens is formed around the actuator, the solar module and / or the sensor.

[0004] WO 2019 / 043529 A1 discloses a method for producing a three-dimensional object, the method comprising: calculating a backprojection sequence describing the three-dimensional object to be formed, the backprojection being calculated from different orientation angles of the object; using the backprojection to define a sequence of light patterns; and using light having each of the light patterns to irradiate a photoresponsive material capable of changing its material phase upon irradiation at respective corresponding orientation angles according to a defined sequence, thereby producing a three-dimensional distribution of changes within the photoresponsive medium, these changes physically reproducing the three-dimensional object, thereby forming a three-dimensional object. Summary of the invention

[0005] The object of the present invention is to improve a method and an arrangement for producing an ophthalmic device.

[0006] According to the invention, this object is achieved by a method having the features of claim 1 and an arrangement having the features of claim 12. Advantageous configurations of the invention are evident from the dependent claims.

[0007] One of the basic concepts of the present invention is to produce an ophthalmic device having at least one first component and at least one second component. In this case, at least one first component is provided, while at least one second component is printed in a tomographic manner. Therefore, the ophthalmic device can be produced so that the at least one second component is arranged on the at least one first component and / or at least partially surrounds the at least one first component. This allows at least one first component to be at least partially integrated in at least one second component. Here, at least one first component (already in its final state) is provided so that at least one first component can be produced in principle by any desired production method. At least one first component is supplied to at least one tomographic printing device. This is achieved by a laminar flow in a curable liquid through a tube transparent to electromagnetic radiation. At least one second component of the ophthalmic device is subsequently printed in a tomographic manner in at least one tomographic printing device. For this purpose, a data record consisting of images of the second component of the ophthalmic device is created and / or provided for at least one second component, which images contain projections of the at least one second component from different directions. Then, using the created and / or provided data record as a starting point, a liquid curable by electromagnetic radiation in a transparent tube is printed in a tomographic manner, i.e., locally cured, in particular according to the light pattern in the image of the data record, to form at least one second component. In this case, the creation and / or provision of the data record and the tomographic printing are implemented such that the at least one second component is arranged on the at least one first component and / or at least partially surrounds the at least one first component. After the tomographic printing of the at least one second component, the at least one first component and the at least one second component arranged thereon are removed from the at least one tomographic printing device by a laminar flow in the curable liquid.

[0008] In particular, a method for producing an ophthalmic device is provided, the method comprising: providing a tube transparent to electromagnetic radiation, filling the transparent tube with a liquid curable by electromagnetic radiation, introducing at least one first component of the ophthalmic device into the transparent tube, supplying the at least one first component to at least one tomographic printing device by a laminar flow in the curable liquid, creating and / or providing a data record consisting of images of at least one second component of the ophthalmic device, the images containing projections of the at least one second component from different directions, using the created and / or provided data record as a starting point, tomographically printing the curable liquid in the transparent tube by electromagnetic radiation to form the at least one second component by at least one tomographic printing device, the creation and / or provision of the data record and the tomographic printing being carried out in such a way that the at least one second component is arranged on the at least one first component and / or at least partially surrounds the at least one first component, removing the at least one first component and the at least one second component arranged thereon from the at least one tomographic printing device by the laminar flow in the curable liquid.

[0009] Furthermore, an arrangement for producing, in particular, an ophthalmic device is formed, the arrangement comprising: a tube transparent to electromagnetic radiation; a flow generating device, which is configured to generate a laminar flow in a liquid, which liquid can be cured by electromagnetic radiation and is contained in the transparent tube; a data processing device; and at least one tomographic printing device, the flow generating device further being configured and the transparent tube being arranged to: supply at least one first component of the ophthalmic device to the at least one tomographic printing device and remove the at least one first component from the at least one tomographic printing device by the generated laminar flow, the data processing device being configured to create and / or provide a data record consisting of images of at least one second component of the ophthalmic device, the images containing projections of the at least one second component from different directions, the tomographic printing device being configured to tomographically print the curable liquid in the transparent tube by electromagnetic radiation using the created and / or provided data record as a starting point to form the at least one second component, the creation and / or provision of the data record and the tomographic printing being implemented in such a way that the at least one second component is arranged on the at least one first component and / or at least partially surrounds the at least one first component.

[0010] The method and arrangement have the advantage that a plurality of ophthalmic devices can be produced in the manner of assembly line production. The production volume can thus be increased, resulting in overall savings in expenses and costs. In this respect, it can be provided that, for example, a plurality of first components are moved by a laminar flow and these first components are conveyed to and removed from a tomographic printing device. In particular, a plurality of simultaneous tomographic printings can be provided, wherein this can be implemented by one or more tomographic printing devices. In an alternative, it can be provided that each first component is conveyed individually to at least one tomographic printing device and at least one second component is printed individually tomographically for each ophthalmic device, respectively.

[0011] Another advantage of the method and arrangement is that in principle any desired materials (substances) can be combined with one another. For example, it can be provided that the first component is a haptic of an intraocular lens and the second component forms an optical unit of the intraocular lens. The material (substance) of the first component can in principle be selected almost arbitrarily and / or produced in any desired manner.

[0012] The electromagnetic radiation is particularly in the optical wavelength range, in particular in the visible and / or UV wavelength range. In particular, the curable liquid can have the properties described in DE 102020108375 B3. In particular, in principle, tomographic printing is implemented in the manner described in DE102020108375 B3. For the purpose of creating and / or providing, for example, an image of a data record can be calculated from a three-dimensional data record (e.g. CAD data), and the three-dimensional data record includes the shape of the ophthalmic device, in particular the shape of at least one second component. In particular, this is a process opposite to that used for tomographic imaging. For example, tomographic imaging is used for computer tomography. For example, tomographic imaging can utilize Radon transformation. In particular, tomographic printing utilizes this reverse process so that the curable liquid is locally cured according to the light pattern contained in the data record image through the calculated image.

[0013] In particular, the curable liquid comprises a solution with dissolved monomers and a photoinitiator, which can initiate polymerization of the monomers in a radiation-dependent manner. In addition, other substances can also be components of the curable liquid, such as filler substances, optically excitable dyes or nanoparticles and / or medical agents. In particular, the curable liquid is provided to have a specified minimum viscosity of at least 100 mPa*s (cps).

[0014] It can be provided that the ophthalmic device is an intraocular lens. The intraocular lens can also be an adjustable intraocular lens. The ophthalmic device, in particular the intraocular lens, can in particular also include an actuator, a solar module and / or a sensor as a first component. Furthermore, the ophthalmic device, in particular the intraocular lens, can include an optical device body and at least one haptic.

[0015] In addition, the ophthalmic device can be one of the following: a glaucoma drainage device, an eye stent, a surgical port, a capsular ring, a capsular tension ring, an eyeball ring, a capsular support device, a corneal implant, an iris implant (e.g., with dye particles), an iris prosthesis, a contact lens, a therapeutic contact lens with a drug, an implantable contact lens, a saddle ring, an iris dilation ring, etc.

[0016] It may be provided that the ophthalmic device produced according to the method may also be subsequently post-processed, such as turning, mechanical polishing, laser polishing and / or laser cutting, etc.

[0017] The components of the arrangement, in particular the data processing device, can be designed individually or together as a combination of hardware and software, for example as a program code executed on a microcontroller or microprocessor. However, it can also be provided that the components are designed individually or together as an application specific integrated circuit (ASIC) and / or a field programmable gate array (FPGA).

[0018] In an embodiment, a curable liquid is provided that contains a specified proportion of silicone. For example, the proportions may be as follows but are not limited to these values: 5% (w / w), 10% (w / w), 15% (w / w), 20% (w / w), 25% (w / w), 30% (w / w), 35% (w / w), 40% (w / w), 45% (w / w), 50% (w / w), 55% (w / w), 60% (w / w). This allows the viscosity to be set. For example, methyl methacrylate may be provided mixed with a photoinitiator, a crosslinker (e.g., trimethylolpropane trimethacrylate) and silicone as a thickening means for use as a curable liquid. For example, Cabot Corporation's Can be used as silicone.

[0019] In an embodiment, a curable liquid is provided to contain a mixture of prepolymerized methyl methacrylate and / or a long-chain polymer and a short monomer. This can set, in particular, increase viscosity. For example, it can be provided that prepolymerized methyl methacrylate is partially used in the mixture so that a longer chain of polymethyl methacrylate (PMMA) that increases the viscosity of the curable liquid is partially present. In particular, prevention of complete polymerization is provided herein. And then complete polymerization is triggered only by tomographic printing. The corresponding description is applicable to a mixture of long-chain polymers and short monomers. For example, a long-chain poly (ethylene glycol) acrylate mixed with a short monomer can be used. Some representative but non-limiting examples are listed in Table 1 below. The number of possible combinations of monomers, prepolymers, various starting materials and individual monomers is too large, and only a small selection is listed, which is not intended to be restrictive. For example, one of the PMMA prepolymers can be combined with one or more auxiliary monomers in Table 1. Various prepolymers (such as PMMA prepolymers of different lengths or prepolymers of PMMA prepolymers and auxiliary monomers) can also be mixed. In addition, the mixture ratio can be changed in any possible mutual proportion to obtain the desired properties of the resulting copolymer.

[0020]

[0021] Table 1: Examples of formulations of PMMA prepolymers and various candidate copolymers. In this case, each prepolymer can be linked to each auxiliary monomer. The choice of the respective ratios can also vary.

[0022] In an embodiment, the transparent tube is provided to rotate about the longitudinal axis together with the curable liquid contained therein at least during the tomographic printing. Thus, the individual images of the data record can be projected from all directions into the curable liquid using a single exposure device of the tomographic printing device. In this case, the viscosity of the curable liquid is selected to be so large that, in particular, at least one first component rotates together with the curable liquid when the curable liquid rotates. It can be provided that the rotation starts and ends with a gradual change in the speed, so that the change in the speed is small and it is ensured that the first component can rotate together.

[0023] In an embodiment, it is provided that the curable liquid is cooled at least in sections by means of a cooling device. Thus, the viscosity of the curable liquid can be increased at least in sections. In particular, it can be provided that the temperature of the curable liquid is lowered at least during tomographic printing in order to prevent or at least reduce gravity-driven sinking of the at least one first component in the curable liquid during tomographic printing.

[0024] In an embodiment, a tomographic printing of at least one second component is performed simultaneously for a plurality of ophthalmic devices. This can increase the production volume in relation to the number of ophthalmic devices produced, whereby costs and expenses can be reduced. In this respect, it can be provided that a plurality of first components are arranged in a tomographic printing device and tomographic printing is performed simultaneously in the device, for which images of data records are created and / or provided for a plurality of second components respectively. However, it is also possible to provide a plurality of tomographic printing devices, in each of which a first component or a plurality of first components are arranged for simultaneous tomographic printing of respective second components.

[0025] In an embodiment, a method is provided for stabilizing and / or correcting the position of at least one first component in the curable liquid by applying at least one energy and / or force from the outside to the curable liquid. In particular, this can reduce or even prevent the gravity-driven sinking of at least one first component in the curable liquid. Correction and / or stabilization can be implemented before tomographic printing. However, alternatively or additionally, stabilization and / or correction can also be performed during tomographic printing. However, it must be noted that stabilization and / or correction will not affect tomographic printing. It can be provided that the correction and / or stabilization device moves parallel to the transparent tube together with one or more first components. For example, a slideway and / or a linear drive can be provided for this purpose. Within the scope of stabilization and / or correction, the rotational movement of the transparent tube around the longitudinal axis can also be considered. It can be provided that the position and / or orientation of at least one first component is detected by at least one sensor system, wherein the detected position and / or orientation is used as a starting point for stabilization and / or correction. For example, the difference between the actual position and / or actual orientation detected by the first aspect and the target position and target orientation of the second aspect can be determined respectively, and the determined difference is used as a starting point to implement stabilization and / or correction.

[0026] In an embodiment, provision is made for stabilizing and / or correcting the position of the at least one first component in the curable liquid by means of at least one optical tweezers. In this regard, provision is made in particular for the tomographic printing to be independent of the wavelength used by the optical tweezers.

[0027] In an embodiment, a stabilization and / or correction of the position of at least one first component in the curable liquid is provided by at least one electric field and / or at least one magnetic field. This can be achieved if the first component can be influenced by an electric field and / or a magnetic field. In particular, a directed and / or focused electric and / or magnetic field can be purposefully generated for this purpose. For example, if the first component contains ferromagnetic regions, the first component can be held in place by such a magnetic field.

[0028] In an embodiment, there is provided a method for stabilizing and / or correcting the position of at least one first component in a curable liquid by acoustic mechanical forces. In particular, this can be achieved by acoustic standing waves. Standing waves allow forces to be exerted on the first component, so that the position of the first component can be stabilized and / or corrected in this way. For example, reference can be made to the method described in Nature Methods, Vol. 15, No. 12, pp. 1021-1028, November 26, 2018, Adem Ozcelik et al., "Acoustic tweezers for the life sciences", https: / / doi.org / 10.1038 / s41592-018-0222-9.

[0029] In an embodiment, a laminar flow in the opposite direction of gravity is provided to stabilize and / or correct the position of at least one first component in a curable liquid. This can keep at least one first component in place. In particular, this embodiment can be used if the viscosity of the curable liquid is not sufficient to keep at least one first component in place. By generating a laminar flow acting in the opposite direction of gravity, the gravity-driven sinking of at least one first component can be compensated. In this case, the speed of the laminar flow acting in the opposite direction of gravity is selected according to the sinking speed of at least one first component, so that the at least one first component is generally maintained in the same position. It can be provided that the position of at least one first component is detected by at least one sensor system, wherein the speed of the laminar flow acting in the opposite direction of gravity is selected using the detected position as a starting point. For example, the sinking speed can be determined from the change in the detected position, and the speed of the laminar flow acting in the opposite direction of gravity can be selected and set using the determined speed as a starting point. In particular, the speed is selected to have the same absolute value but opposite signs, so that the laminar flow direction is opposite to gravity.

[0030] Through the description of the configuration of the method, other features related to the configuration of the arrangement can be understood. The advantages of the arrangement are respectively the same as those of the configuration of the method. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be described in more detail below based on preferred exemplary embodiments with reference to the accompanying drawings. In the accompanying drawings:

[0032] Figure 1 A schematic flow chart showing an embodiment of a method for producing an ophthalmic device;

[0033] Figure 2 A schematic diagram for illustrating an embodiment of the method is shown; and

[0034] Figure 3 A schematic diagram is shown to illustrate an embodiment of the arrangement. DETAILED DESCRIPTION

[0035] Figure 1 A schematic flow chart of an embodiment of a method for producing an ophthalmic device is shown. It is assumed hereinafter by way of example that the ophthalmic device comprises a first component and a second component. In principle, the ophthalmic device can also comprise a plurality of first components and / or a plurality of second components. For example, the ophthalmic device is an intraocular lens, wherein the first component is a haptic and the second component is an optical unit. The aim is to print the optical unit in a tomographic manner around a portion of the haptic.

[0036] In method step 100, a tube transparent to electromagnetic radiation is provided. In particular, in this case, the tube extends horizontally. However, in principle, the tube can also extend in a different direction, for example vertically.

[0037] In method step 101, the transparent tube is filled with a liquid curable by electromagnetic radiation. In this case, the curable liquid has in particular a specified viscosity.

[0038] In method step 102, a first component of an ophthalmic device is introduced into a transparent tube. In this regard, the first component is particularly arranged centrally with respect to the cross-sectional area of ​​the tube. In particular, a plurality of first components, i.e. respective first components for a plurality of ophthalmic devices, are introduced into the transparent tube. For this purpose, a locking element can be provided, by means of which the first component (or first components) can be introduced into the tube and into the curable liquid.

[0039] In method step 103, the first component is supplied to at least one tomographic printing device by a laminar flow in the curable liquid. To this end, the laminar flow is generated by a flow generating device. In particular, at this point, the flow speed provided for establishing the laminar flow is slowly changed so that the first component floating in the curable liquid moves with the curable liquid and does not change its relative position relative to the (moving) curable liquid, but is carried by it.

[0040] In method step 104 , a data record consisting of images of the second component of the ophthalmic device is created and / or provided, the images containing projections of the second component from different directions.

[0041] In method step 105, the curable liquid is tomographically printed in the transparent tube by electromagnetic radiation using the created and / or provided data record as a starting point to form the second component by at least one tomographic printing device. At this point, for this purpose, it can be provided that the speed of the laminar flow is reduced or even set to zero, so that the first component moves more slowly relative to the tomographic printing device or does not move at all during tomographic printing.

[0042] In this case, the creation and / or provision of the data record in method step 104 and the tomographic printing in method step 105 are carried out in such a way that the second component is arranged on the first component and / or at least partially surrounds the first component.

[0043] In method step 106 , the first component and the second component arranged thereon are removed from the at least one tomography printing device by means of a laminar flow in a curable liquid.

[0044] Provision may be made for the presence of further workstations to which already produced ophthalmic devices are transported by laminar flow.

[0045] By reference below Figure 2 and Figure 3 The described embodiments enable other embodiments of the method to be understood.

[0046] Figure 2 A schematic diagram with steps a) to c) is shown for illustrating the method. In step a), a first component 11 arranged centrally in a transparent tube 2 in a curable liquid 3 is transported to at least one tomographic printing device by a laminar flow 4. In this case, the first components 11 are in particular arranged equidistant from one another. In step b), a plurality of second components 12 are tomographically printed so that each of the second components 12 is arranged on the first component 11 and / or each at least partially surrounds the first component. In step c), the finished ophthalmic device 10 comprising the first component 11 and the second components 12 arranged thereon is removed by the laminar flow 4 and the device is thus in particular transported away from the tomographic printing device.

[0047] Figure 3 A schematic diagram of an embodiment of an arrangement 1 for producing an ophthalmic device 10 is shown. The arrangement 1 comprises: a tube 2 transparent to electromagnetic radiation 6; a flow generating device 5 configured to generate a laminar flow 4 in a liquid 3 curable by electromagnetic radiation 6 and contained in the transparent tube 2; a data processing device 7, for example comprising a computing device and a memory (neither shown); and a tomographic printing device 8.

[0048] Furthermore, the arrangement 1 comprises in particular a lock 9 - 1 for loading the first component 11 into the tube 2 and a lock 9 - 2 for unloading the finished ophthalmic device 10 from the tube 2 . The arrangement 1 may further comprise a filling device 15 configured to fill the tube 2 with the curable liquid 3 .

[0049] The flow generating device 5 is configured and the transparent tube 2 is arranged to supply first components 11 of the ophthalmic apparatus 10 to the tomographic printing device 8 by means of the generated laminar flow 4 and to remove these first components from the tomographic printing device after tomographic printing.

[0050] The data processing device 7 is configured to create and / or provide a data record 20 consisting of images 21 of the second component 12 of the ophthalmic apparatus 10 , the images 21 containing projections of the second component 12 from different directions.

[0051] The tomographic printing device 8 is configured to use the created and / or provided data record 20 as a starting point to tomographically print the curable liquid 3 in the transparent tube 2 by electromagnetic radiation 6 for forming the second component 12. To this end, the image 21 in the data record 20 is projected into the curable liquid 3 from different directions by the exposure device 8-1 of the tomographic printing device 8, so that the curable liquid 3 is cured in a targeted manner and forms the second component 12.

[0052] In this respect, it can be provided that the transparent tube 2 rotates about the longitudinal axis together with the curable liquid 3 contained therein at least during the tomographic printing, as indicated by the arrow. To this end, the arrangement 1 can have a rotating device 16. Alternatively, it can also be provided that the exposure device 8-1 rotates about the transparent tube 2 in order to provide radiation or exposure from different directions. Alternatively or additionally, it can also be provided that the tomographic printing device 8 comprises more than one exposure device 8-1, so that exposure can be provided simultaneously from multiple directions.

[0053] The creation and / or provision of the data record 20 and the tomographic printing are carried out in such a way that the second component 12 is arranged on the first component 11 and / or at least partially surrounds the first component, such as Figure 3 Schematically shown in FIG.

[0054] The curable liquid 3 may be provided to contain silica gel in a specified ratio.

[0055] It may be provided that the curable liquid 3 comprises prepolymerized methyl methacrylate and / or a mixture of long chain polymers and short monomers.

[0056] It can be provided that the curable liquid 3 is cooled at least sectionally by a cooling device 13. To this end, the arrangement 1 comprises a cooling device 13 which cools the curable liquid 3 so that the viscosity increases. For example, the cooling device 13 is arranged directly upstream of the tomography device 8.

[0057] It is possible to provide for a plurality of ophthalmic devices 10 to simultaneously implement tomographic printing of the second component 12. To this end, a plurality of first components 11 are simultaneously arranged in a tomographic printing device 8, as already described. Figure 2 This is shown by way of example.

[0058] It can be provided that at least one energy and / or force is applied from the outside to the curable liquid 3 to stabilize and / or correct the position of the first component 11 in the curable liquid 3. To this end, the arrangement 1 includes a positioning device 14-x, which performs the stabilization and / or correction. The positioning device 14-x can be arranged in the tomographic printing device 8, as long as it does not affect the tomographic printing process, and / or arranged at other positions on the transparent tube 2.

[0059] Stabilization and / or correction of the position of the first component 11 in the curable liquid 3 may be provided by at least one optical tweezers 14 - 1 .

[0060] Furthermore, alternatively or additionally, stabilization and / or correction of the position of the first component 11 in the curable liquid 3 by means of at least one electric field and / or at least one magnetic field can be provided, wherein the positioning device 14-x is in the form of a field generating device 14-2, for this purpose the field generating device being particularly capable of generating directional and / or focused electric and / or magnetic fields.

[0061] Alternatively or additionally, provision may be made for stabilizing and / or correcting the position of the first component 11 in the curable liquid 3 by means of an acoustomechanical force. The positioning device 14-x is then in the form of an acoustomechanical modulator 14-3.

[0062] A laminar flow 4 counter to gravity can be provided to stabilize and / or correct the position of the first component 11 in the curable liquid 3. For example, the flow angle can be modified for this purpose. The tube 2 can include appropriate guide elements (not shown) for generating or guiding such a laminar flow 4.

[0063] In principle, it is possible to provide an ophthalmic device 10 comprising a plurality of first components 11 and / or a plurality of second components 12. In particular, it is possible to provide a further tomographic printing device to simultaneously produce a plurality of ophthalmic devices 10 and / or to tomographically print further second components individually.

[0064] List of Reference Numerals

[0065] 1. Layout

[0066] 2 Transparent tube

[0067] 3 Curable liquid

[0068] 4 Laminar Flow

[0069] 5 Flow generating equipment

[0070] 6 Electromagnetic Radiation

[0071] 7 Data processing equipment

[0072] 8 Tomography Printing Equipment

[0073] 8-1 Exposure equipment

[0074] 9-1 Locking parts

[0075] 9-2 Locking parts

[0076] 10 Ophthalmic devices

[0077] 11. Part I

[0078] 12 Second Part

[0079] 13 Cooling equipment

[0080] 14-x Positioning device

[0081] 14-1 Optical Tweezers

[0082] 14-2 Field generating equipment

[0083] 14-3 Acoustic Mechanical Modulator

[0084] 15 Filling equipment

[0085] 16 Rotating equipment

[0086] 20 Data Records

[0087] 21 images

[0088] 100-106 Methods and Steps

Claims

1. A method for producing an ophthalmic device (10), comprising: providing a tube (2) which is transparent to electromagnetic radiation (6), filling the transparent tube (2) with a liquid (3) that can be cured by electromagnetic radiation (6), introducing at least one first component (11) of the ophthalmic device (10) into the transparent tube (2), supplying the at least one first component (11) to at least one tomographic printing device (8) by means of a laminar flow (4) in the curable liquid (3), creating and / or providing a data record (20) consisting of images (21) of at least one second component (12) of the ophthalmic device (1), the images (21) containing projections of the at least one second component (12) from different directions, Using the created and / or provided data record (20) as a starting point, tomographically printing the curable liquid (3) in the transparent tube (2) by means of electromagnetic radiation (6) to form the at least one second component (12) by means of the at least one tomographic printing device (8), The creation and / or provision of the data record (20) and the tomographic printing are carried out in such a way that the at least one second component (12) is arranged on the at least one first component (11) and / or at least partially surrounds the at least one first component, and The at least one first component (11) and the at least one second component (12) arranged thereon are removed from the at least one tomography printing device (8) by means of a laminar flow (4) in the curable liquid (3).

2. The method according to claim 1, characterized in that The curable liquid (3) contains silica gel in a specified ratio.

3. The method according to claim 1 or 2, characterized in that: The curable liquid (3) comprises prepolymerized methyl methacrylate and / or a mixture of long chain polymers and short monomers.

4. The method according to any one of the preceding claims, characterized in that At least during tomographic printing, the transparent tube (2) rotates together with the curable liquid (3) contained therein about a longitudinal axis.

5. The method according to any one of the preceding claims, characterized in that The curable liquid (3) is cooled at least in sections by means of a cooling device (13).

6. The method according to any one of the preceding claims, characterized in that For a plurality of ophthalmic devices (10), tomographic printing of at least one corresponding second component (12) is performed simultaneously.

7. The method according to any one of the preceding claims, characterized in that The position of the at least one first component (11) in the curable liquid (3) is stabilized and / or corrected by at least one energy and / or force applied to the curable liquid (3) from the outside.

8. The method according to claim 7, characterized in that The position of the at least one first component (11) in the curable liquid (3) is stabilized and / or corrected by at least one optical tweezers (14-1).

9. The method according to claim 7 or 8, characterized in that: The position of the at least one first component (11) in the curable liquid (3) is stabilized and / or corrected by at least one electric field and / or at least one magnetic field.

10. The method according to any one of claims 7 to 9, characterized in that The position of the at least one first component (11) in the curable liquid (3) is stabilized and / or corrected by means of acoustomechanical forces.

11. The method according to any one of the preceding claims, characterized in that The position of the at least one first component (11) in the curable liquid (3) is stabilized and / or corrected by a laminar flow counter to gravity.

12. An arrangement (1) for producing an ophthalmic device (10), comprising: a tube (2) transparent to electromagnetic radiation (6), a flow generating device (5) configured to generate a laminar flow (4) in a liquid (3) which is solidifiable by electromagnetic radiation (6) and which is contained in the transparent tube (2), data processing equipment (7), and at least one tomographic printing device (8), The flow generating device (5) is further configured and the transparent tube (2) is arranged to supply at least one first component (11) of the ophthalmic device (10) to the at least one tomographic printing device (8) and remove the at least one first component from the at least one tomographic printing device by means of the generated laminar flow (4), the data processing device (7) being configured to create and / or provide a data record (20) consisting of images (21) of at least one second component (12) of the ophthalmic device (10), the images (21) containing projections of the at least one second component (12) from different directions, The tomographic printing device (8) is configured to tomographically print the curable liquid (3) in the transparent tube (2) by electromagnetic radiation (6) using the created and / or provided data record (20) as a starting point to form the at least one second component (12), The creation and / or provision of the data record (20) and the tomographic printing are carried out in such a way that the at least one second component (12) is arranged on the at least one first component (11) and / or at least partially surrounds the at least one first component.

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