EP3126091B1 - Outil de polissage ainsi que dispositif et procédé de polissage de surface de verres de lunettes optimisé en termes de défauts de moulage et coques de moulage pour fabriquer des verres de lunettes - Google Patents

Outil de polissage ainsi que dispositif et procédé de polissage de surface de verres de lunettes optimisé en termes de défauts de moulage et coques de moulage pour fabriquer des verres de lunettes Download PDF

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Publication number
EP3126091B1
EP3126091B1 EP15712885.1A EP15712885A EP3126091B1 EP 3126091 B1 EP3126091 B1 EP 3126091B1 EP 15712885 A EP15712885 A EP 15712885A EP 3126091 B1 EP3126091 B1 EP 3126091B1
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EP
European Patent Office
Prior art keywords
polishing
spectacle lens
elastic body
tool
annular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15712885.1A
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German (de)
English (en)
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EP3126091A1 (fr
Inventor
Wolf Krause
Georg Michels
Gerd Nowak
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Carl Zeiss Vision International GmbH
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Carl Zeiss Vision International GmbH
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/02—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor by means of tools with abrading surfaces corresponding in shape with the lenses to be made
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
    • B24D13/12—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising assemblies of felted or spongy material, e.g. felt, steel wool, foamed latex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
    • B24D13/142—Wheels of special form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
    • B24D13/147—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face comprising assemblies of felted or spongy material; comprising pads surrounded by a flexible material

Definitions

  • the invention relates to a polishing tool, in particular a ring-adaptive polishing tool according to the preamble of patent claim 1, a method for polishing of spectacle lens surfaces and G confuseformschalenobervid, in particular surfaces of spherical, toric and / or progressive spectacle lenses, according to the preamble of claim 7 and an apparatus for Polishing of spectacle lens surfaces and mold shell surfaces, in particular of surfaces of spherical, toric and / or progressive spectacle lenses, according to the preamble of patent claim 14.
  • polishing tools are used with a spherically shaped polishing body according to the internally known state of the art, which adapts to the machined spectacle lens surface during polishing. So that the surface of the spherical polishing body can adapt to the geometry of the spectacle lens surface which is often very divergent from the spherical shape, an elastic foam material layer is adhered to a solid tool body. On this elastic layer, a polishing foil facing the workpiece is applied as a polishing pad.
  • a polishing tool is eg in the DE 10 2004 003 131 A1 , of the DE 10 2008 062 097 A1 or the DE 603 12 475 T2 described.
  • the polishing tools are generally smaller than the workpiece as shown in FIG Fig. 1 of the EP 1 251 997 B2 is shown.
  • the polishing removal takes place with the aid of an abrasive polishing fluid through the relative movement between the pressurized rotating polishing tool and the rotating spectacle lens. Details are also taken from the EP 1 251 997 B2 ,
  • the fundamental disadvantage of this arrangement is that the elastic layer of the spherical polishing tool, the height differences caused by the toric or free-form geometry of the spectacle lens has to compensate for the momentarily covered spectacle lens area completely. These height differences can be common with today, with toric Share equipped progressive lens surfaces may well be in the range of several millimeters. During the polishing process, the pressure distribution on the spectacle lens surface is therefore not constant. Because of the proportionality of locally applied polishing pressure and the resulting removal rate arise in this polishing basically form errors, the size of which depends on the extent of the asphericity of the spectacle lens.
  • Such a systematic polishing error can be reduced by making the tool diameter smaller with increasing deviation of the spectacle lens surface from the spherical shape. Because of the thereby reduced by the polishing tool covered and machined surface portion of the spectacle lens and also the generally reduced relative speed between the spectacle lens and polishing tool, the efficiency of the polishing process is significantly reduced.
  • a method for producing aspherical surfaces on lens blanks, in particular made of glass employs a CNC machine tool having a control unit and a rotatable cup tool for polishing a workpiece in a fixture that is movable along a feed axis to a machining position, the axes of the cup tool and fixture forming an angle to one another.
  • the pot tool is guided on the lens blank along a predetermined by the control unit machining contour such that between the longitudinal axis of the pot tool and the normal in its point of contact on the workpiece a selectable lead angle is maintained constant.
  • the pot tool remains the same orientation from the polishing point insert during the entire machining with respect to the machining point on the workpiece, so that changing aspheres or ball radii are processed contour-faithfully in changing series. This is done with a constant same polishing diameter, so that the wear on the pot tool is minimized perpendicular to the contact surface.
  • the pot tool always comes only inclined to rest on the workpiece because of the lead angle, so that a point contact at best - after a long service life - to a very small segment or curved surface increased.
  • the inclination of the pot tool and the lead angle for each polishing task can be optimally adjusted.
  • the lead angle is 0 °, from the starting position at the beginning of processing.
  • the object of the invention is to develop the generic polishing tool, the generic device and the generic method for polishing processing such that free-form surfaces can be polished with high dimensional accuracy and high efficiency.
  • the polishing tool according to the invention for surfaces of spectacle lenses or casting shells for spectacle lenses comprises a polishing lip with a rigid support, an elastic body arranged on the rigid support and a polishing covering arranged on the elastic body.
  • the surface of the polishing pad provides a polishing surface.
  • This polishing surface has at least one closed annular portion. Under closed annular portion means an annular (circumferential) segment of the shell of a ring torus, that is, an annular part surface of a Ringtorus Diagram.
  • Such a polishing tool according to the invention may be similar to the pot polishing tool after DE 44 12 370 A1 be formed and a polishing lip in the form of a Ringtorus Halbschale to have.
  • the polishing lip of the polishing tool according to the invention additionally comprises, in addition to the rigid body functioning as a carrier according to the invention, an elastic body arranged on the carrier and a polishing pad arranged on the elastic body.
  • the elasticity of the elastic body allows an adaptation of the polishing surface to the surface contour of the surface to be polished and thus a flat polishing removal, which according to the teaching of DE 44 12 370 A1 just not wanted.
  • the DE 44 12 370 A1 rather calls for punctual polishing removal.
  • the flat contact of the polishing surface and the workpiece instead of a punctiform contact makes it possible to polish free-form surfaces with high dimensional accuracy and high efficiency. The stated object is therefore fully solved by the invention.
  • the closed annular portion of the polishing surface has a ring torus radius (main radius) and a lip radius (minor radius). It has proven to be advantageous to choose the aspect ratio formed between the ratio of the ring torus radius and the lip radius between 2 and 250. With an aspect ratio selected in this way, a wide range of free-form surfaces can be polished on the one hand with the polishing tool and on the other hand the demand for a homogeneous pressure distribution within the contact surface polishing tool / spectacle lens surface or polishing tool / G devisformschalenober Construction can be achieved.
  • the majority of common eyeglass lens or mold shell surface geometries can be machined with polishing tools whose polishing surface has a closed annular portion whose aspect ratio is selected between 2.5 and 40.
  • the number of tools required to polish the entire range of eyeglass lenses can be reduced.
  • the aspect ratio has a value between 3 and 8. If one selects the aspect ratio for the ring-or toric section of the polishing surface in this range of values, one may possibly completely dispense with different tools for processing different workpiece surface geometries.
  • the annular torus forming the ring-oring polishing surface has a main radius between 20 and 200 mm, most preferably between 30 and 80 mm.
  • a broad spectrum of spectacle lens / shell geometries can be efficiently polished with a high removal rate.
  • the rigid carrier of the polishing tool has a closed annular outer contour section, preferably complementary to the polishing surface, on which the elastic body is arranged, and the elastic body has a constant thickness. This ensures that the elasticity of the elastic body, assuming a homogeneous material, is largely the same over the entire polishing surface. If the rigid support has a ring-shaped outer contour, on which the elastic body is arranged, and the elastic body has a constant thickness, a configuration of the polishing tool is obtained which is characterized by a polishing force distribution which decreases substantially to the edge area of the contact area. This degressive Polierkraftverlauf to the edge avoids unwanted, caused by abrupt pressure gradients polishing structures.
  • the rigid support may have a hollow cylindrical portion with a flat end face on which the elastic body is disposed, the elastic body having a closed annular outer contour portion.
  • This alternative variant of a polishing tool is characterized in that such tools are easy to produce.
  • Improvements can already be achieved if one does not align the ring-shaped half-shell surface in the axial direction or if the polishing surface has a ring-shaped half-shell surface, which is not aligned in the axial direction.
  • the elastic body is generally made of a material whose modulus of elasticity is greater than 0.02 N / mm 2 . Suitable materials are thus elastomers, such as rubber or rubber, in particular polyurethane, polyetherurethane or the like. This elastic body may for example be an injection molded part.
  • a polishing pad As a polishing pad, a commercially available polyurethane-based polishing film can be used. Instead of a polishing foil and an abrasive coating can be applied to the elastic body.
  • the inventive method of polishing a spectacle lens surface or mold shell surface (which regularly has a shape complementary to the spectacle lens surface) with a polishing tool having a rigid body polishing lip having a polishing surface having at least one closed annular portion is characterized by using a polishing tool whose rigid body acts as a carrier of an elastic body and a polishing pad.
  • the elasticity of the elastic body allows an adaptation of the polishing surface to the surface contour of the surface to be polished and thus a flat polishing removal.
  • the surface contact of polishing surface and workpiece instead of one in the DE 44 12 370 A1 Proposed selective contact makes it possible to polish freeform surfaces with high form fidelity and high efficiency. The stated object is therefore fully solved by the invention.
  • the annularly adaptively formed polishing tool is preferably guided or moved relative to the spectacle lens or shell surface in such a way that is deformed by a compressive stress of the elastic body of the polishing tool on the spectacle lens or shell surface.
  • the currently polished surface portion on the eyeglass lens or shell surface, the so-called contact surface is then not circular as in the EP 1 251 997 B2 described methods and not punctiform as in the DE 44 12 370 A1 described method, but preferably strip to kidney-shaped.
  • the geometry of the polishing surface and the geometry of the spectacle lens surface or the casting shell surface are taken into account for the instantaneous relative movement of the polishing surface to the spectacle lens surface or the casting shell surface.
  • the geometry of the polishing surface and the geometry of the spectacle lens surface or of the casting shell surface are incorporated in the actually performed relative movement between the polishing surface and the workpiece surface.
  • the contact surface ie the partial surface of the polishing surface which is brought into contact with the workpiece surface, is interposed in dependence on the geometry of the polishing surface and the geometry of the spectacle lens surface or the casting shell surface by corresponding relative alignment between the polishing tool and the workpiece and corresponding feed movement direction Polishing tool and workpiece controlled.
  • the invention differs from the teaching of DE 44 12 370 A1 , which requires a constancy of the lead angle.
  • the geometry of the polishing surface and / or the geometry of the spectacle lens or the casting shell surface is provided in the form of a mathematical description. In this way, a desired alignment and feed movement direction between the polishing tool and the workpiece can be calculated in advance and adjusted with the aid of a control device.
  • a particularly preferred approach is based on the idea that conventional free-form surfaces in spectacle lens manufacturing can be subdivided into a sequence of segments which can be approximated in detail with minimally deformed rings of different radii. This finding would suggest a variety of annular polishing tools with different radii. According to the invention, a single polishing tool to be continuously adjusted in inclination during the polishing process replaces this plurality of polishing tools.
  • the geometry of the spectacle lens surface or mold shell surface may be approximated, for example, by at least one toric surface segment or according to the above concept by a series of such segments.
  • the polishing tool and the polishing movement are to be chosen so that during the polishing process, the currently polished surface portion on the spectacle lens surface is not circular as in the EP 1 251 997 B2 described method and not punctiform as in the in DE 44 12 370 A1 described method, but approximately strip or kidney-shaped.
  • the generally rotationally supplied annular-adaptive polishing tool with its pressed against the spectacle lens polishing lip is different from the teaching of DE 44 12 370 A1 arcuately guided along the flat radius of the torus approximation of the spectacle lens surface ("rotation radius"), wherein this ideal tool path line in the case of progressive spectacle lenses with or without a toric component can also have a shape which differs greatly from the circular arc.
  • the described polishing can be done in a single overflow in the feed direction or in several individual overflows, which can also be arranged side by side parallel or approximately parallel to the feed direction.
  • the method variant may be advantageous in the case of spectacle lens surfaces, which are characterized by very great variance of the surface curvatures.
  • the polishing tool is moved relative to the spectacle lens or the mold shell touching the spectacle lens surface or the mold shell surface with the polishing lip on a contact surface and if an inclination of the polishing tool against the spectacle lens surface or Gelloformschalenober Structure while minimizing the differences in the deformation of the elastic body within the contact surface is adjusted.
  • the elastic body is compressed as uniformly as possible in the area of the contact surface. If the shape of the polishing surface and the shape of the workpiece surface to be polished are known, it is always possible to find surface portions which are approximately complementary to one another and which can be brought into abutment with one another by suitable positioning and guidance.
  • a particularly uniform polishing of the lens surface is obtained when the polishing tool is adjusted so that the respective average radius of the currently covered Surface segment is continuously approximated best fitting.
  • the pressure distribution can be controlled.
  • the polishing pressure for each currently covered area segment of the spectacle lens or the mold shell can be continuously controlled by the delivery of spectacle lens surface / shell surface and tool.
  • the calculation of the relative movement between polishing tool and workpiece and their control is preferably carried out computer-aided.
  • a device according to the invention suitable for carrying out the above method for polishing a spectacle lens surface or a cast shell surface requires a polishing tool having a polishing lip comprising a rigid support with a polishing surface having at least one closed annular portion, wherein on the rigid support an elastic body and a polishing pad are arranged.
  • the apparatus may include guide means for deformably guiding the polishing tool over the spectacle lens surface or the mold shell surface. It depends solely on the relative movement between the polishing tool and the workpiece surface, i.
  • the term guiding comprises both a sole movement of the tool or the workpiece or a movement of the tool and the workpiece.
  • the apparatus may include guide means for moving the polishing tool and the spectacle lens surface or the mold shell surface relative to one another such that the polishing surface rests on the spectacle lens surface or the mold shell surface in a strip or kidney shape.
  • guide means for moving the polishing tool and the spectacle lens surface or the mold shell surface relative to one another such that the polishing surface rests on the spectacle lens surface or the mold shell surface in a strip or kidney shape.
  • the guide device can be designed such that it takes into account the geometry of the polishing surface and the geometry of the spectacle lens surface or the casting shell surface for the momentary relative movement of the polishing surface to the spectacle lens surface or G confuseformschalenober Structure. It may be for this purpose e.g. an electronic computer can be present, which calculates the required relative movement between tool and workpiece on the basis of the geometry data.
  • the guide means may comprise a providing means e.g. in the form of an electronic memory and / or an electronic computer, which provides the geometry of the polishing surface and / or the geometry of the spectacle lens surface or G cumformschalenober Structure in the form of a mathematical description.
  • the provision device may be designed such that the geometry of the spectacle lens surface or the casting shell surface is approximated by at least one toric surface segment.
  • the guide means may be configured to guide the polishing tool to contact the spectacle lens surface or the mold shell surface with the polishing lip touching the spectacle lens surface or the mold shell surface at a contact surface, thereby inclining the polishing tool against the spectacle lens surface or the mold shell surface while minimizing the difference in deformation of the elastic body within adjust the contact surface.
  • FIG. 1 shows a first embodiment of a ring-adaptive polishing tool according to the invention 100 and a lens block 104 blocked on a block piece, not shown, in longitudinal section.
  • the annular adaptive polishing tool 100 is held by a spindle 106 rotatably driven about its center axis A 106 .
  • the direction of rotation of the rotary drive of the spindle 106 is in the FIG. 1 represented by the arrow marked with the reference ⁇ 1 .
  • the annular adaptive polishing tool 100 comprises a rigid support 110, which in the present embodiment, a shaft 110 a, a rotatably connected thereto Circular disk 110b and a peripheral annular torus section 110c arranged on the outer peripheral side rotatably fixed thereto.
  • circumferential ring torus section is meant an annular (circumferential) segment of the shell of a ring torus, that is to say an annular partial surface of the annular torus surface.
  • the annular torus section 110c is therefore an annular torus outer surface minus the surface which adjoins the outer circumference of the circular disc 110b.
  • the center axis A 106 of the spindle 106 and the center axis A 110 of the ring torus section 110c coincide.
  • an elastic body 114 is disposed on the surface 110d of the ring torus section 110c.
  • the surface 118 of this elastic body 114 has a ring-toric shape.
  • the center axis A 118 is identical to the above-mentioned center axes A 106 , A 110 .
  • a polishing pad 116 is preferably applied constant thickness.
  • the elastic body 114 and the polishing pad 116 as well as the ring torus 110c of the carrier 110 and the elastic body 114 are each non-rotatably connected by means of an adhesive 115.
  • This arrangement of carrier 110, elastic body 114 and polishing pad 116 forms a so-called polishing lip 128 formed by the outer contour of the polishing pad 116 polishing surface 120th
  • the rigid support 110 may be made of a metallic material, such as e.g. Stainless steel, or plastic, such. Acrylonitrile-butadiene-styrene (ABS), polymethyl methacrylate (PMMA), polyamide (PA), fiber reinforced plastic, e.g. carbon fiber reinforced plastic (CFRP), glass fiber reinforced plastic (GRP), etc., be made.
  • ABS Acrylonitrile-butadiene-styrene
  • PMMA polymethyl methacrylate
  • PA polyamide
  • fiber reinforced plastic e.g. carbon fiber reinforced plastic (CFRP), glass fiber reinforced plastic (GRP), etc.
  • the elastic body 114 is made of a material whose Young's modulus is larger than 0.02 N / mm 2 .
  • Suitable materials for the elastic body 114 are elastomers such as rubber, rubber, in particular polyurethane, Polyreliherurethan or the like into consideration.
  • the thickness d of the elastic body 114 in the present embodiment is 1.5 cm. Thicknesses between 0.3 cm and 3 cm, preferably between 0.5 cm and 2 cm, most preferably between 0.8 cm and 1.5 cm have been found to be favorable.
  • the polishing pad 116 may be a polishing film, a technical textile, an abrasive coating, or a combination of such materials.
  • Polishing foils for polishing spectacle lenses consist for example of polyurethane. A possible combination could be eg Polyurethane coating with embedded diamond particles.
  • the thickness of the polishing film is generally about 0.5 mm to about 3.0 mm, that of an abrasive coating 0.3 mm to 3.5 mm, most preferably between 0.5 mm to 3.0 mm.
  • the polishing pad 116 is therefore in terms of its thickness in the FIG. 1 (and also in the FIGS. 2 to 13 ) not true to scale.
  • the main radius R can generally assume a value between 20 and 200 mm and the minor radius r a value between 2 and 50 mm.
  • the aspect ratio A is selected between 1.5 and 100, more preferably between 2.5 and 40, most preferably between 3 and 8.
  • the polishing surface 120 or the closed ring torus section or the annular partial shell extends in the in the FIG. 1 illustrated longitudinal section along the center axis A 106 , A 110 , A 118 over an angle ⁇ 1 of about 270 °.
  • it comprises the part shell surface directed outwards from the center axis A 118 of the ring torus in the radial direction (ie in the direction of the main radius R), which extends completely over the angle ⁇ 2 of 180 °. Since this radially outwardly directed part shell surface extends over half of the full angle, it is referred to in the present description as a radially outwardly directed annular half-shell surface, although their surface area does not equal half the surface area of the entire ring gate.
  • FIG. 2 shows a second embodiment of an inventive annular adaptive polishing tool 200 in longitudinal section.
  • the annular-adaptive polishing tool 200 is rotatably driven by means of spindle 106.
  • the annular adaptive polishing tool 200 in turn comprises a rigid support 210 with shaft 210a and with this rotatably connected disc 210b.
  • the disk 210b has a rounded edge contour 212 which has a ring-shaped surface shape.
  • an elastic body 214 of preferably uniform thickness d is arranged on the ring-orally rounded edge contour 212 of the carrier 210. Due to its uniform thickness d and the ring-shaped contact surface 212, this elastic body 214 has a closed (or encircling) ring-or toric surface section 218 on its side facing the spectacle lens (not shown).
  • a polishing pad 216 is also preferably of constant thickness attached on the elastic body 214.
  • the edge contour 212 of the carrier 210, the elastic body 214 and the polishing pad 216 are non-rotatably connected together as in the previous embodiment by means of an adhesive 215. This arrangement of rigid support 210, elastic body 214 and polishing pad 216 forms the polishing lip 228 with the polishing surface 220 formed by the outer contour of the polishing pad 216.
  • central axes A 106 , A 210 , A 218 of spindle 106, annular (surface) surface 212 of the carrier 210, and closed annular (surface) surface 218 of the elastic body 214 are identical as in the previous embodiment.
  • the polishing pad 216 completely covers the side of the elastic body 214 facing the eyeglass lens surface.
  • the materials proposed in connection with the first embodiment can also be used in this configuration.
  • the ring torus has a main radius R of 50 mm and a minor radius r of 15 mm in the exemplary embodiment.
  • the main radius R can generally assume a value between 20 mm and 200 mm and the minor radius r a value between 2 mm to 50 mm.
  • the aspect ratio A is usually chosen between 1.5 and 100. Further preferably, A takes values between 2.5 and 40, most preferably between 3 and 8.
  • FIG. 3 shows a third embodiment of an inventive annular-adaptive polishing tool 300.
  • the annular-adaptive polishing tool 300 is rotatably driven by spindle 106 about its center axis A 106 .
  • This annular adaptive polishing tool 300 is largely identical to the annular adaptive polishing tool 200 of FIG. 2 educated.
  • the polishing tool 300 in turn comprises a rigid support 310 with shaft 310a and with this rotatably connected disc 310b.
  • the disk 310b has a rim contour section rounded round in the manner of a torus section.
  • the disk-shaped region 310b of the rigid support 310 is completely enveloped by an elastic body 314, preferably of uniform thickness.
  • the elastic body 314 has a ring-toric surface section 318 on its side facing the spectacle lens (not shown here).
  • the elastic body 314 is not completely overlapping-a polishing pad 316 also preferably constant thickness applied.
  • the edge contour 312 of the carrier 310, the elastic body 314 and the polishing pad 316 are non-rotatably connected to one another with the aid of an adhesive 315, as in the previous exemplary embodiments.
  • This arrangement of rigid support 310, elastic body 314 and polishing pad 316 forms the polishing lip 328 with the polishing surface 320 formed by the outer contour of the polishing pad 316.
  • the polishing pad 316 does not completely cover the side of the elastic body 314 facing the lens surface 104. However, it would also be possible to provide both the entire surface and only the annular portion 315 or a portion of this annular portion 315 of the elastic body 314 with a polishing pad 316.
  • the ring torus of which a section or segment forms the ring-shaped polishing surface 320, has in the exemplary embodiment a main radius R of 50 mm and a minor radius r of 10 mm up.
  • the main radius R can generally assume a value between 20 mm and 200 mm and the minor radius r a value between 2 mm to 50 mm.
  • the aspect ratio A is selected between 1.5 and 100, more preferably between 2.5 and 40, most preferably between 3 and 8.
  • central axes A 106 , A 310 , A 318 of spindle 106, annular (sub) surface 312 of the carrier 310 and annular (surface) surface 318 of the elastic body 314 are identical as in the previous embodiment.
  • the materials proposed in connection with the first embodiment may also be used in this configuration.
  • FIG. 4 shows a fourth embodiment of an associated with a tool spindle 106 and rotationally driven by this in the direction of rotation ⁇ 1 drivable inventive annular-adaptive polishing tool 400.
  • This annular-adaptive polishing tool 400 according to FIG. 4 in turn comprises a rigid support 410, which in the present embodiment of a shaft 410a, which is rotatably connected at one end to the tool spindle 106, and with this other end-side rotatably connected hollow cylinder 410b.
  • the hollow cylindrical end 410b of the rigid support 410 carries a ring-gate geometry 424 at its end facing the spectacle lens.
  • the surface of the hollow cylinder 410 has an inwardly-facing cylinder-jacket shape 410d and an outward-facing cylinder-jacket-shaped shape 410c and the end-side ring-toric shape 424.
  • the entire surface 410c, 410d, 424 of the hollow cylinder 410 is enveloped by an elastic body 414 of substantially constant thickness.
  • the elastic body 414 has on its side facing the spindle 106 a cylinder jacket-shaped section 417 and on its side facing the spectacle lens a ring-toric section 415. On the elastic body 414, a polishing pad 416 is attached. This arrangement of rigid support 410, elastic body 414 and polishing pad 416 also forms a polishing lip 428 analogous to the preceding embodiments with the polishing surface 420 formed by the outer contour of the polishing pad 416.
  • the polishing pad 416 completely covers the side of the elastic body 414 facing the lens surface 104.
  • the angle component ⁇ 2 of the radially outward-facing ring torus segment is only about 90 °.
  • the angle ⁇ 3 of the radially inwardly directed ring torus segment is also 90 °.
  • the ring torus segment over both angular components ⁇ 2 , ⁇ 3 faces the axial direction of the ring torus.
  • the materials proposed in connection with the first embodiment can also be used in this configuration.
  • the ring torus whose partial surface forms the ring-oring polishing surface 420, in the exemplary embodiment has a main radius R of 45 mm and a minor radius r of 10 mm.
  • the main radius R can generally assume a value between 20 mm and 200 mm and the minor radius r a value between 2 mm to 50 mm.
  • the aspect ratio A is selected between 1.5 and 100, more preferably between 2.5 and 40, most preferably between 3 and 8.
  • central axes A 106 , A 410 , A 418 of spindle 106, annular (surface) surface 424 of the carrier 410, and annular (surface) surface 418 of the elastic body 414 are identical as in the embodiments described above.
  • FIG. 5 shows a fifth embodiment of a connected to a tool spindle 106 and rotatably driven by this in the rotational direction ⁇ 1 inventive annular-adaptive polishing tool 500 and a machined with this spectacle lens 504.
  • This polishing tool 500 is particularly suitable for polishing of convex spectacle lens surfaces 522nd
  • the annular-adaptive polishing tool 500 is held by the above-described spindle 106 of a processing machine that is rotatably driven about its center axis A 106 .
  • the direction of rotation of the rotary drive of the spindle 106 is in the FIG. 5 marked with the aid of the arrow marked with the reference symbol ⁇ 1 .
  • the annular adaptive polishing tool 500 includes a rigid support 510, which in the present embodiment comprises a shaft portion 510a, a circular disk portion 510b, a cylinder jacket portion 510c, and a circular disk portion 510d.
  • a rigid support 510 which in the present embodiment comprises a shaft portion 510a, a circular disk portion 510b, a cylinder jacket portion 510c, and a circular disk portion 510d.
  • Einend the shaft portion 510a with the tool spindle 106 is rotatably connected.
  • the circular section 510b connects centrally to the shaft section 510a in a rotationally fixed connection.
  • the circular-disk section 510b is adjoined by the cylinder-jacket section 510c with one end in a rotationally fixed connection.
  • the other end of the cylinder barrel portion 510c merges into the outer circumference of the annular disk portion 510d in a rotationally fixed connection.
  • the circular ring disk section 510d has a rounded edge contour forming a ring torus section 512.
  • the center axis A 106 of the spindle 106 and the center axis A 510 of the ring torus section 512 of the carrier 510 coincide.
  • an elastic body 514 is disposed on the ring torus section 512.
  • the surface 518 of this elastic body 514 has a ring-toric shape.
  • This center axis A 518 is identical to the aforementioned center axes A 106 , A 510 .
  • a polishing pad 516 preferably constant thickness is applied on the elastic body 514.
  • the elastic body 514 and the polishing pad 516 and the ring torus 512 of the carrier 510 and the elastic body 514 are each rotatably connected by means of an adhesive 515.
  • This arrangement of carrier 510, elastic body 514 and polishing pad 516 forms a polishing lip 528 with a polishing surface 520 formed by the outer contour of the polishing pad 516.
  • the rigid support 510 can be made of a metallic material, such as aluminum, copper or stainless steel, or of plastic, such as acrylonitrile-butadiene-styrene (ABS), polymethyl methacrylate (PMMA), polyamide (PA), fiber-reinforced plastic, such as carbon fiber reinforced plastic (CFRP), glass fiber reinforced plastic (GRP), etc., be made.
  • ABS acrylonitrile-butadiene-styrene
  • PMMA polymethyl methacrylate
  • PA polyamide
  • fiber-reinforced plastic such as carbon fiber reinforced plastic (CFRP), glass fiber reinforced plastic (GRP), etc.
  • the elastic body 514 is made of a material whose modulus of elasticity is preferably greater than 0.02 N / mm 2 .
  • Suitable materials for the elastic body 514 are elastomers such as rubber, rubber, in particular polyurethane, Polyreliherurethan or the like into consideration.
  • the polishing pad 516 may be a polishing film, a technical textile, an abrasive coating, or a combination of such materials.
  • Polishing foils for polishing spectacle lenses may e.g. consist of polyurethane or have polyurethane as an ingredient.
  • One possible combination could be e.g. a polyurethane polishing pad with embedded diamond particles.
  • the thickness of the polishing film is generally about 0.5 to about 3.0 mm, that of an abrasive coating about 0.5 to 3.0 mm.
  • the polishing surface 520 or the closed ring torus section or the annular partial shell extends in the in the FIG. 5 illustrated longitudinal section along the center axis A 106 , A 510 , A 518 over an angle ⁇ 3 of about 180 °. Since this radially inwardly directed part shell surface extends over half of the full angle, it is referred to in the present description as a radially inwardly directed ring-shaped half-shell surface.
  • the FIG. 6 shows a variant of the embodiment of the FIG. 5 , Shown again is the polishing tool 600, which can be driven by the spindle 106 in a rotating manner about its center axis A 106 .
  • the polishing tool 600 has a sectionally ring-trained Polishing surface 620, which like the polishing surface 520 of the polishing tool 500 after the FIG. 5 is aligned.
  • FIG. 7 shows a seventh embodiment of an associated with a tool spindle 106 and rotationally driven by this in the direction of rotation ⁇ 1 drivable inventive annular-adaptive polishing tool 700.
  • This annular-adaptive polishing tool 700 according to the FIG. 7 in turn comprises a rigid support 710, which in the present embodiment of a shaft 710a, which is rotatably connected at one end with the tool spindle 106 and a second end side rotatably connected thereto with the hollow cylinder 710b.
  • the hollow cylindrical end 710b of the carrier 710 is formed at its end facing the spectacle lens as a flat surface 712.
  • an elastic body 714 is placed, which forms one half of a ring torus.
  • the flat annular surface 714a of the elastic body 714 i. the ring door half, has the same size as the flat annular end face 712 of the hollow cylinder 710. Both surfaces 714a, 712 are non-rotatably bonded together by means of an adhesive 715.
  • polishing pad 716 On the elastic body 714 is a polishing pad 716. Also between these two surfaces fixing with the aid of an adhesive 715.
  • This arrangement of rigid support 710, elastic body 714 and polishing pad 716 forms a polishing lip 728 analogous to the previous embodiments with through the outer contour the polishing pad 716 formed polishing surface 720th
  • the polishing pad 716 completely covers the side of the elastic body 714 facing the eyeglass lens surface.
  • the materials proposed in connection with the above embodiments can be used also in this configuration.
  • the ring torus forming the ring-oring polishing surface 720 in the exemplary embodiment has a main radius R of 50 mm and a minor radius r of 25 mm.
  • the main radius R can generally assume a value between 20 mm and 200 mm and the minor radius r a value between 2 mm to 50 mm.
  • the aspect ratio A is selected between 1.5 and 100, more preferably between 2.5 and 40, most preferably between 3 and 8.
  • central axes A 106 , A 710 , A 718 of spindle 106, hollow cylinder 710b of the carrier 710, and annular (sub) surface 714b of the elastic body 714 coincide as in the above-described embodiments.
  • FIG. 8 shows a first embodiment of an inventive device 8000 for polishing processing spectacle lens surfaces 802 in a schematic representation.
  • This device 8000 is a CNC processing machine with two characteristic assemblies BG81 and BG82.
  • the assembly BG81 comprises a spindle 806 for driving ⁇ 1 of a polishing tool 800 about the rotation axis A 806 and a (not shown in detail) pivoting means for pivoting the polishing tool 800 about a deviating from the axis of rotation A 806 pivot axis B 806th
  • the pivoting directions are in the FIG. 8 represented by the indicated by the reference numeral ⁇ 1 double arrow.
  • the pivotal movement of the assembly BG81 about the pivot axis B 806 is CNC controlled and is used for optimal employment of the polishing tool 800. This can be positioned or tracked during the polishing process constant or the surface geometry of the spectacle lens 801 accordingly.
  • the second module BG82 has a receptacle 803 for the workpiece to be machined 801, a first linear drive 8104 with a first linear axis L 8104 for positioning the workpiece 801 in the X direction and a second linear drive 8204 with a perpendicular to the first linear axis L 8104 second Linear axis L 8204 for the positioning of the Workpiece 801 in the Z direction.
  • the pivot axis B 806 is both perpendicular to the axis of rotation A 806 of the spindle 806 and on the two linear axes L 8104 , L 8204 .
  • polishing tool 800 for example, any of the above with reference to FIGS. 1 to 7 described polishing tools 100 to 700 are used. Exemplary is in the FIG. 8 a variant according to the FIG. 1 outlined.
  • FIG. 9 shows a second embodiment of a device according to the invention 9000 for polishing processing spectacle lens surfaces 902 in a schematic representation.
  • This device 9000 is similar to device 8000 of FIG. 8 a CNC machine with two characteristic assemblies BG91 and BG92.
  • the BG91 board is identical to the BG81 board.
  • the second assembly BG92 comprises the components of the BG82 assembly described above, which are described in the FIG. 9 are provided in a corresponding manner with the reference numerals 903, 9104, 9204. Moreover, in the embodiment of the FIG. 9 an additional pivoting device for pivoting the two linear drives 9104 and 9204 provided about a C 904 axis, which allows a rotational positioning ⁇ 2 of the lens 901, so as to enable an optimized depending on the individual spectacle lens geometry alignment to the pivoting movement ⁇ 1 of the assembly BG91 ,
  • polishing tool 800 As a polishing tool 800, each of the above with reference to the FIGS. 1 to 7 described polishing tools 100 to 700 are used. Exemplary is in the FIG. 9 a variant according to the FIG. 1 outlined.
  • FIG. 10 shows a third embodiment of an inventive apparatus 10000 for polishing processing spectacle lens surfaces 1002 in a schematic representation.
  • This device 10000 is a CNC processing machine with the two characteristic assemblies BG101 and BG102.
  • the assembly BG101 has a spindle 1006 for driving a polishing tool 1000 about a spindle-axis axis of rotation A 1006 .
  • the second assembly BG102 has a receptacle 1003 for a workpiece to be machined 1001 and a linear actuator 10204 to move the receptacle 1003 along an axis L 10204 in the Z direction.
  • pivoting device 10204 provided to pivot the workpiece 1001 about a pivot axis B 10204 .
  • the FIG. 11 shows a fourth embodiment of a device according to the invention 10100 for polishing of spectacle lens surfaces 1102 in a schematic representation.
  • the device 10100 comprises the two characteristic assemblies BG111 and BG112.
  • the BG111 module is designed like the BG101 module. It has a spindle 1106 for driving a polishing tool 1100 about a spindle-axis axis of rotation A 1106 .
  • the second module BG112 includes the features of the BG102 module. It thus comprises a receptacle 1103 for a workpiece 1101 to be machined and a linear drive 11204 for displacing the receptacle 1103 along an axis L 11204 in the Z direction. Moreover, in the embodiment of the FIG. 11 a (11204 realized here in the linear actuator) pivoting device 11204 provided to pivot the workpiece 1101 about a pivot axis B 11204 .
  • an additional pivoting device is provided for pivoting the linear drive 11204 about a C 11204 axis, which allows a rotational positioning ⁇ 2 of the spectacle lens 1101, so as to allow optimized as a function of the individual spectacle lens geometry alignment to the pivoting movement ⁇ 1 of the assembly BG111.
  • inventive devices 10000, 10100 after the FIGS. 10 and 11 is thus in contrast to the representations in the FIGS. 8 and 9 the Schenk axis respectively in the second, the workpiece associated assembly.
  • FIGS. 12 and 13 show further embodiments of the device according to the invention 10200, 10300.
  • the structures correspond to the arrangements of the FIGS. 10 and 11 , where here the second modules BG102, BG112 are duplicated and in the FIGS. 12 and 13 are designated as BG102a, 102b and 112a, 112b, respectively, so as to allow the simultaneous processing of two spectacle lenses.
  • All linear and rotary actuators can be controlled independently of each other, so as to be able to position the respective workpieces simultaneously and independently of one another in the linear direction X1, X2, Z1, Z2 and swivel direction B1, B2, C1, C2. It is also possible to provide the second assemblies BG102, BG112 more than twice, thus increasing the number of simultaneously processed glasses.
  • FIGS. 14 a) and b) show the geometrical engagement conditions during the machining process of a ring-adaptive polishing tool 100 according to the invention after FIG. 1 at an inclination ⁇ 1 of the center axis A 106 of the polishing tool 100 driving tool spindle 106 with respect to an optical axis A 104 of the spectacle lens 104 of 15 ° in a schematic representation and that from a view from the side ( FIG. 14 a) ) and in plan view through the spectacle lens 104 ( FIG. 14b) ).
  • FIGS. 15 to 17 show the annular adaptive polishing tool 100 after FIG. 1 in the same views at different inclinations ⁇ 2 , ⁇ 3 , ⁇ 4 with respect to the optical axis A 104 of the spectacle lens 104 of 30 °, 45 ° and 60 °.
  • FIGS. 14 a) . 15 a) . 16 a) . 17 a) are drawn as if the ring-toric shape of the outer contour of the polishing pad 116 of the annular adaptive polishing tool 100 penetrate the outer contour 122 of the spectacle lens 104. In fact, however, the elastic body 114 and thus the polishing pad 116 is deformed and the polishing pad 116 lies flat (in the first approximation within the respective cutting lines 1402, 1502, 1602 1702) on the eyeglass lens surface 122.
  • the respective contact surfaces are in the FIGS. 14 b) . 15 b) . 16 b) . B) designated by the reference numerals 1404, 1504, 1604, 1704.
  • FIG. 10 shows a flowchart 1800 of an exemplary method of polishing a spectacle lens surface according to the present invention.
  • a mathematical description of the spectacle lens surface to be processed is provided.
  • a second step 1802 which can also take place before the first step 1801, there is provided a mathematical description of the ring or toric section of the polishing surface of the polishing tool.
  • a third step 1803 the entire lens surface is approximated by a bestfit ring torus.
  • the torus axis of the bestfit ring torus is determined in the present embodiment as the preferred feed direction of the polishing tool. In principle, it is of course possible to set the feed direction in a different way.
  • the spectacle lens surface is divided into area segments orthogonal to the feed direction of the polishing tool.
  • a fifth step 1805 an average curvature is calculated for each of these surface segments as the starting point of the following iteration calculation.
  • the ideal tool inclination is iterated for each of these surface segments.
  • a seventh optional step 1807 the tool inclination and the delivery can be optimized with regard to the desired local pressure distribution and thus the local removal rate.
  • the data for the control of a CNC processing machine according to the invention is calculated. It can be any of the in the FIGS. 8 to 13 shown machines are used.
  • the CNC data is calculated for the complete polishing process with continuous, surface segment-dependent tool inclination and feed movement.
  • the entire area to be polished can be used as a single area segment for the further calculation, which simplifies the above-mentioned calculation steps 1804 to 1808 accordingly.
  • FIG. 19 FIG. 12 is a flow chart showing optimization algorithms which are selected singly, in a selection, or in a complete combination in the method of polishing a spectacle lens surface or a mold shell for spectacle lens manufacturing of the first embodiment of FIG. 18 can be realized.
  • a sub-step of the process step 1806, which in the FIG. 19 The reference numeral 1806b may include ensuring that the compression of the annular adaptive polishing tool, in particular the deformation of the elastic body in each surface point of the spectacle lens, is within defined limits.
  • a sub-step of the process step 1806, which in the FIG. 19 indicated by reference numeral 1806b, an optimization of the tool inclination may be such that within the segment surface elements, a predetermined mean value of the compression is achieved and at the same time the differences of the compression values become minimal.
  • a further sub-step 1806d may be an optimization of the feed rate along the large torus radius (main radius), so that the residence time differences caused by tool tilt change are compensated.
  • Another sub-step 1806e may be to optimize the compression values of the polishing tool by changing the tool tilt to compensate for local, for example, dwell-time, removal inhomogeneities.
  • a sub-step 1806f can also consist of an empirically supported derivative calculation of tool inclination, feeds and delivery.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Claims (15)

  1. Outil de polissage (100) pour des surfaces de verres de lunettes et de coques de moulage pour des verres de lunettes avec une lèvre de polissage (118) comprenant un corps rigide (110), avec une face de polissage (120), qui présente au moins une partie torique annulaire fermée, caractérisé en ce que le corps est réalisé en forme de support (110) et en ce qu'un corps élastique (114) et une garniture de polissage (116) sont disposés sur le support (110).
  2. Outil de polissage (100) selon la revendication 1, caractérisé en ce que la partie torique annulaire fermée de la face de polissage (120) présente un rayon de tore annulaire (R) et un rayon de lèvre (r) et en ce qu'un rapport d'élancement (A) formé par le quotient du rayon de tore annulaire (R) et du rayon de lèvre (r) présente une valeur comprise entre 2 et 100, de préférence entre 2,5 et 40, et de préférence encore entre 3 et 8.
  3. Outil de polissage (100) selon la revendication 1 ou 2, caractérisé en ce que le rayon de tore annulaire (R) entre 20 et 200 mm, de préférence encore entre 30 et 80 mm, et un rayon de lèvre (r) entre 2 et 50 mm, de préférence encore entre 5 et 20 mm présente.
  4. Outil de polissage (100) selon l'une quelconque des revendications précédentes, caractérisé en ce que le support rigide (110) présente une partie de contour extérieur torique annulaire fermée, sur laquelle le corps élastique (114) est disposé et en ce que le corps élastique (114) présente une épaisseur constante (d).
  5. Outil de polissage (100) selon l'une quelconque des revendications précédentes, caractérisé en ce que le support rigide (110) présente une partie cylindrique creuse avec une face frontale plane (112), sur laquelle le corps élastique (114) est disposé et en ce que le corps élastique (114) présente une partie de contour extérieur torique annulaire fermée.
  6. Outil de polissage (100) selon l'une quelconque des revendications précédentes, caractérisé en ce que la partie torique annulaire fermée de la face de polissage (120) présente une face de demi-coque torique annulaire orientée radialement vers l'extérieur ou une face de demi-coque torique annulaire orientée radialement vers l'intérieur.
  7. Procédé (1100) pour le polissage d'une surface de verres de lunettes (122) ou d'une surface de coques de moulage avec un outil de polissage (100) avec une lèvre de polissage (118) comprenant un corps rigide (110), avec une face de polissage (120), qui présente au moins une partie torique annulaire fermée, caractérisé en ce que le corps rigide (110) est réalisé en forme de support et en ce qu'un corps élastique (114) et une garniture de polissage (116) sont disposés sur le support rigide (110).
  8. Procédé selon la revendication 7, caractérisé en ce que l'on déplace l'outil de polissage (100) et la surface du verre de lunettes (122) ou la surface de la coque de moulage l'un par rapport à l'autre, de telle manière que le corps élastique (114) soit déformé.
  9. Procédé selon une des revendications 7 ou 8, caractérisé en ce que l'on déplace l'outil de polissage (100) et la surface du verre de lunettes (122) ou la surface de la coque de moulage l'un par rapport à l'autre, de telle manière que la face de polissage (120) s'applique sur la surface du verre de lunettes (122) ou sur la surface de la coque de moulage en forme de bande ou en forme de rein.
  10. Procédé selon l'une quelconque des revendications 7 à 9, caractérisé en ce que l'on tient compte de la géométrie de la face de polissage (120) et de la géométrie de la surface du verre de lunettes (122) ou de la surface de la coque de moulage pour le mouvement relatif instantané de la face de polissage (120) par rapport à la surface du verre de lunettes (122) ou à la surface de la coque de moulage.
  11. Procédé selon la revendication 10, caractérisé en ce que l'on prépare la géométrie de la face de polissage (120) et/ou la géométrie de la surface du verre de lunettes (122) ou de la surface de la coque de moulage sous la forme d'une description mathématique.
  12. Procédé selon la revendication 11, caractérisé en ce que l'on approche la géométrie de la surface du verre de lunettes (122) ou de la surface de la coque de moulage par au moins un segment de surface torique.
  13. Procédé selon l'une quelconque des revendications 8 à 12, caractérisé en ce que l'on guide l'outil de polissage (100) touchant la surface du verre de lunettes (122) ou la surface de la coque de moulage avec la lèvre de polissage (118) sur une face de contact (704, 804, 904, 1004) sur la surface du verre de lunettes (122) ou sur la surface de la coque de moulage et en ce que l'on règle une inclinaison de l'outil de polissage (100) par rapport à la surface du verre de lunettes (122) ou à la surface de la coque de moulage en minimisant les différences de la déformation du corps élastique (114) à l'intérieur de la face de contact.
  14. Dispositif (600) de polissage d'une surface de verres de lunettes (122) ou d'une surface de coques de moulage avec un outil de polissage (100) avec une lèvre de polissage (118) comprenant un corps rigide (110), avec une face de polissage (120) qui présente au moins une partie torique annulaire fermée, caractérisé en ce que le corps rigide (110) est réalisé en forme de support et en ce qu'un corps élastique (114) et une garniture de polissage (116) sont disposés sur le support rigide (110).
  15. Dispositif selon la revendication 14, caractérisé en ce qu'il est prévu un dispositif de guidage, pour guider l'outil de polissage (100) en déformant le corps élastique (114) sur la surface du verre de lunettes (122) ou sur la surface de la coque de moulage.
EP15712885.1A 2014-04-03 2015-03-26 Outil de polissage ainsi que dispositif et procédé de polissage de surface de verres de lunettes optimisé en termes de défauts de moulage et coques de moulage pour fabriquer des verres de lunettes Active EP3126091B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014206424.4A DE102014206424A1 (de) 2014-04-03 2014-04-03 Polierwerkzeug sowie Vorrichtung und Verfahren zur formfehleroptimierten Polierbearbeitung von Brillenlinsenoberflächen und Gießformschalen zur Brillenlinsenherstellung
PCT/EP2015/056486 WO2015150201A1 (fr) 2014-04-03 2015-03-26 Outil de polissage ainsi que dispositif et procédé de polissage de surface de verres de lunettes optimisé en termes de défauts de moulage et coques de moulage pour fabriquer des verres de lunettes

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CN117428680B (zh) * 2023-12-06 2024-06-04 丹阳丹金航空材料科技有限公司 一种导弹弹翼加工模具

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03221362A (ja) 1990-01-19 1991-09-30 Matsushita Electric Ind Co Ltd トーリック面研磨装置
DE4412370A1 (de) 1994-04-12 1995-10-19 Schneider Gmbh & Co Kg Verfahren und Vorrichtung zum Herstellen asphärischer Linsenoberflächen
DE10031057A1 (de) 2000-06-26 2002-01-17 Optotech Optikmasch Gmbh Verfahren zum korrigierenden Feinstpolieren von optischen Linsen oder Spiegeln und Vorrichtung zur Durchführeung des Verfahrens
EP1249307A2 (fr) 2001-04-10 2002-10-16 ESSILOR INTERNATIONAL (Compagnie Générale d'Optique) Outil torique de polissage d'une surface optique d'une lentille atorique et procédé de polissage au moyen d'un tel outil
DE102007026841A1 (de) 2007-06-06 2008-12-11 Satisloh Ag Polierteller für ein Werkzeug zur Feinbearbeitung von optisch wirksamen Flächen an insbesondere Brillengläsern und Verfahren für dessen Herstellung
US8348717B2 (en) * 2004-12-21 2013-01-08 Essilor International (Compagnie Generale D'optique) Polishing wheel
DE102012103743A1 (de) 2012-04-27 2013-10-31 Schneider Gmbh & Co. Kg Polierfolie für Kunststoff-Brillengläser

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4945771B2 (ja) 2000-02-03 2012-06-06 カール ツァイス ヴィジョン ゲゼルシャフト ミット ベシュレンクテル ハフツング 研磨機用の研磨ヘッド
FR2834662B1 (fr) 2002-01-16 2004-05-14 Essilor Int Outil pour le surfacage d'une surface optique
DE102004003131A1 (de) 2004-01-15 2005-08-11 Carl Zeiss Vorrichtung und Verfahren zum Polieren einer optischen Fläche, optisches Bauelement, sowie Verfahren zum Herstellen eines Polierwerkzeugs
DE102008062097A1 (de) 2008-12-16 2010-06-17 Schneider Gmbh & Co. Kg Polierkopf zum zonalen Bearbeiten von optischen Brillenflächen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03221362A (ja) 1990-01-19 1991-09-30 Matsushita Electric Ind Co Ltd トーリック面研磨装置
DE4412370A1 (de) 1994-04-12 1995-10-19 Schneider Gmbh & Co Kg Verfahren und Vorrichtung zum Herstellen asphärischer Linsenoberflächen
DE10031057A1 (de) 2000-06-26 2002-01-17 Optotech Optikmasch Gmbh Verfahren zum korrigierenden Feinstpolieren von optischen Linsen oder Spiegeln und Vorrichtung zur Durchführeung des Verfahrens
EP1249307A2 (fr) 2001-04-10 2002-10-16 ESSILOR INTERNATIONAL (Compagnie Générale d'Optique) Outil torique de polissage d'une surface optique d'une lentille atorique et procédé de polissage au moyen d'un tel outil
US8348717B2 (en) * 2004-12-21 2013-01-08 Essilor International (Compagnie Generale D'optique) Polishing wheel
DE102007026841A1 (de) 2007-06-06 2008-12-11 Satisloh Ag Polierteller für ein Werkzeug zur Feinbearbeitung von optisch wirksamen Flächen an insbesondere Brillengläsern und Verfahren für dessen Herstellung
DE102012103743A1 (de) 2012-04-27 2013-10-31 Schneider Gmbh & Co. Kg Polierfolie für Kunststoff-Brillengläser

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HUE038798T2 (hu) 2018-11-28
DE102014206424A1 (de) 2015-10-08
WO2015150201A1 (fr) 2015-10-08

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