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WO2019135498A1 - Procédé de conception et de fabrication d'une surface asphérique double face d'une lentille multifocale progressive personnalisée, et dispositif de fabrication de lentille asphérique double face à l'aide de celui-ci - Google Patents

Procédé de conception et de fabrication d'une surface asphérique double face d'une lentille multifocale progressive personnalisée, et dispositif de fabrication de lentille asphérique double face à l'aide de celui-ci Download PDF

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Publication number
WO2019135498A1
WO2019135498A1 PCT/KR2018/015116 KR2018015116W WO2019135498A1 WO 2019135498 A1 WO2019135498 A1 WO 2019135498A1 KR 2018015116 W KR2018015116 W KR 2018015116W WO 2019135498 A1 WO2019135498 A1 WO 2019135498A1
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WIPO (PCT)
Prior art keywords
lens
concave
design
infrared
progressive multifocal
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Ceased
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PCT/KR2018/015116
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English (en)
Korean (ko)
Inventor
진재홍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANMI SWISS OPTICAL CO Ltd
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HANMI SWISS OPTICAL CO Ltd
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Publication of WO2019135498A1 publication Critical patent/WO2019135498A1/fr
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    • 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
    • B24B13/0018—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor for plane optical surfaces
    • 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
    • B24B13/06—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor grinding of lenses, the tool or work being controlled by information-carrying means, e.g. patterns, punched tapes, magnetic tapes
    • 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
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/12—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
    • 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
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant

Definitions

  • the present invention relates to a double-sided aspherical spectacle lens manufacturing method, and more particularly, to a double-sided aspherical surface design and manufacturing method of a personalized progressive multifocal lens and an apparatus for manufacturing a double-sided aspheric lens using the same.
  • PAL Progressive Multi-Focussing / Addition Lenses
  • Presbyopia is a condition in which a person wearing a spectacle lens progresses from age 40 onwards, and when the lens is losing its elasticity, when the distance between the lens and the lens must be closely monitored, adjustment of the focus distance is not smooth, It refers to the symptom that the person in the department or the near field is not able to recognize correctly.
  • presbyopia has been emerged as a young preschool population after 30 years of age.
  • new products for the young preschool population are being developed in the field of eyeglass lenses.
  • Modern people have many social activities, TV, computer, game machine, smart phone, etc.
  • modern people can use devices such as computers, game machines, mobile phones and other environmental factors,
  • the risk of eye disease and eye disease is very high due to factors such as presbyopia symptoms are coming soon, and research results are coming out, Recently, there are also many primitive presbyopia population.
  • the progressive multifocal lens has an area for viewing a distance called a " far vision viewing portion ", an area for viewing an intermediate distance called an " intermediate vision viewing portion " (near vision viewing portion) " exists.
  • intermediate distance refers to a distance of about 50 cm to 2 m. In many cases, a distance farther away is called a near distance, and a distance shorter than that is called a near distance, but the reference is not clearly defined.
  • the progressive multifocal lens has different dioptric powers for the far-field portion, the middle portion, and the near-field portion, and the incidence of astigmatism varies depending on the dioptric power.
  • the visual field of the middle portion and the near portion may be narrowed depending on the degree of astigmatism. Particularly, in the case of a diopter having a large astigmatism, the middle portion is significantly narrowed. (The middle distance area).
  • the progressive multifocal lens has a variation in dioptric power through various curves on the lens surface, and thus, in the case of wearing a spectacle lens having high myopia / intensity astigmatism, in which the diopter varies from the distance portion to the near portion, The use rate of the multifocal lens is rapidly lowered.
  • the wearer of the existing progressive multifocal lens has a preconceived notion that the progressive multifocal lens is difficult and expensive, so it relies heavily on foreign products, and it suffers from the inconvenience of using the ready-made article
  • progressive multifocal lenses for example bifocal lenses
  • the upper region of the lens is designed to have adequate optical power for the primitive, and the lower region is designed for near vision (e.g., reading).
  • near vision e.g., reading
  • wearers often experience discomfort due to sudden changes between different lens areas.
  • progressive multifocal lenses have been developed to provide a smooth transition of optical power between regions of the lenses.
  • the conventional aspherical lens is manufactured by inserting a glass product, which is a raw material, into a metal mold and putting it in a molding apparatus.
  • a glass product is directly inserted into a cavity of a mold by using a mechanism such as a tweezers, so that the production amount is short compared with a long production time, a labor cost due to manual work is generated, Since the size of the glass product which is the raw material of the lens is very small, it is difficult for the person to be identified, and thus the glass product is lost in the process of inserting the glass product into the cavity of the metal mold.
  • Japanese Patent Application Laid-Open No. 10-1396334 discloses a raw material and molded lens automatic multi-magazine device and a raw material inputting and molding lens taking out automation device.
  • a plurality of raw material holders (2) a lens holder magazine for storing a plurality of lens holders accommodating the two forming lenses in the first axial direction, (3) a lens holder magazine for holding the lens holder magazines in the first axial direction, A magazine elevator for individually moving the original material holder magazines at regular intervals along the first axis direction, (4) holder grippers for holding one of the work object lens holders and one of the work target raw material holders, and (5) Robot transfers to which the holder grippers are mounted and which move the holder grippers in a second axial direction orthogonal to the first axial direction;
  • said raw material holder magazines are made up of at
  • the present invention has been developed to solve the above-mentioned problems.
  • the present invention has been developed to solve the above-mentioned problems, and it is possible to design and manufacture double-sided aspherical surfaces of a personalized progressive multifocal lens that improves the adaptation rate of the wearer by applying preform design using individual parameters and double- And an apparatus for manufacturing a double-sided aspheric lens using the same.
  • the object of the present invention is to provide an eyeglass lens in which both the object-side convex surface and the visual-field-side concave surface of the spectacle lens are made of an aspheric lens using a preform processing method so that a person having an ultra-high myopia or astigmatism can obtain a satisfactory visual field And at the same time check the dust to securely produce the lens.
  • a personalized progressive multifocal lens having a personalized progressive multifocal lens by applying a preform design using personal parameters (characteristics / habits) ; Minimizing distortion, controlling astigmatism, and minimizing wearer 's maladjustment condition through aspherical design of myopic and astigmatic aspheric design using CC (convex surface) / CV (concave surface).
  • a method for producing a bi-aspherical surface of a progressively progressive progressive multifocal lens there is provided a method of designing a CC (convex surface) which is a front surface of a blank product (semi-finished product) as an aspherical surface and applying an aspherical surface design to the inner surface of the lens by a preforming method .
  • a CC convex surface
  • both sides of a blank product (semi-finished product) or a blank product (finished product), that is, a front CC (convex surface) / a rear surface CV (concave surface) A method of applying the design is provided.
  • the present invention provides a spectacle lens system that calculates an average curvature of a lens surface to be machined of a spectacle lens and calculates a spiral processing locus that continuously increases in accordance with an average curvature from a lens outer circumference to a center on a XY projection plane
  • a calculator terminal (28) for calculating an output value
  • a cutting means (27) for receiving data from the computer terminal and cutting the surface of the lens to be processed into a spiral shape
  • a control unit (32) for controlling the cutting means so that the cutting means cuts the surface of the lens to be processed along the spiral processing locus
  • Dust measuring means 2000 installed at one end of the cutting means for measuring dust
  • a communication signal automatic output unit 1000 for outputting a notification signal to the outside when dust is detected by the dust measuring unit.
  • the present invention provides a personalized progressive multifocal lens using a preform design and a double-sided aspheric design using individual parameters (personal characteristics, habits, etc.) So that the wearer can receive the best spectacle lens.
  • the present invention it is possible to have a more comfortable and wide field of view due to the advantages of the aspherical surface design as well as the wearer of the progressive multifocal lens having both the myopia degree and the astigmatic power, It is possible to minimize distortion even in different fields of view such as the distance portion, the middle portion, and the near portion, so that the adaptation rate can be increased when the lens is worn, and even if the wearer has a frequency with a large amount of astigmatism, A much better effect can be obtained.
  • FIG. 1 is a block diagram showing a method for designing a double-sided aspheric surface of a progressive progressive multifocal lens according to the present invention.
  • FIG. 2 is a block diagram showing a method for manufacturing an aspherical surface on both sides of a personalized progressive multifocal lens according to the present invention.
  • FIG. 3 is a sectional view of a spectacle lens after cutting according to the present invention.
  • FIG. 4 is a block diagram for explaining a manufacturing apparatus of the present invention
  • FIG. 5 is a block diagram of a lens manufacturing apparatus according to the present invention.
  • FIG. 6 is a flowchart of a manufacturing method of the present invention.
  • FIG. 7 is a block diagram of a dust measuring means and a communication signal automatic output section of the present invention.
  • FIG. 8 is a conceptual diagram of infrared transmitting means and infrared receiving means constituting the dust measuring means of the present invention.
  • FIG. 9 is a conceptual diagram for measuring dust using the infrared ray transmitting means and the infrared ray receiving means of the present invention.
  • 10 is a conceptual diagram of operation for the flow of the infrared ray transmitting means of the present invention.
  • FIG. 11 is a conceptual diagram illustrating the angle measurement of the concave lens of the present invention.
  • FIG. 12 is a configuration view of a first negative lens according to the present invention.
  • 13 is a second negative lens configuration applied to the present invention.
  • FIG. 14 is a third negative lens configuration applied to the present invention.
  • 15 is a fourth negative lens configuration applied to the present invention.
  • 16 is a fifth negative lens configuration applied to the present invention.
  • 17 is a graph showing the optical intensity graph according to the concave lens center depression angle of the present invention.
  • FIG. 18 is a circuit diagram of a communication signal automatic output section of the present invention.
  • Fig. 19 is an enlarged view of the main part of Fig. 18;
  • 20 is an exemplary operational example of a communication signal automatic output section of the present invention.
  • Fig. 21 is a diagram showing an example of installing recessed portion cooling means of the present invention.
  • FIG. 22 is an operation drawing of the recessed portion cooling means of the present invention.
  • FIG. 24 is an exploded perspective view of the recessed portion cooling means of the present invention.
  • 25 is a block diagram of a partial cooling device circuit of the present invention.
  • a progressive multifocal lens is designed to have both spherical surfaces or only one aspheric surface.
  • there are limitations in controlling astigmatism and distortion Many cases occurred. This is mainly due to the fact that most of the progressive multifocal lens wearers have nearsightedness and astigmatic dioptric power.
  • the progressive multifocal lens designed to be spherical in both sides has an aspheric surface on one side, The wearer feels uncomfortable due to the astigmatism and the distortion phenomenon more than the designed product, so that the wearer who avoids even the wearer who necessarily requires the progressive multifocal lens is created.
  • the present invention provides a personalized progressive multifocal lens to which a preform design utilizing individual parameters (e.g., individual characteristics or habits) is applied.
  • a personalized progressive multifocal lens can minimize maladjustment due to astigmatism or distortion of the progressive multifocal lens wearer.
  • the present invention is characterized in that aspheric design is applied to both sides of a progressive multifocal lens, that is, CC (convex surface) / CV (concave surface)
  • CC convex surface
  • CV concave surface
  • Such a double-sided aspheric design provides the myopia and astigmatism wearer with an enlargement of the field of view such as viewing a flat-screen TV, as well as reducing the thickness of the lens.
  • the thickness of the lens is reduced, the weight and thinning thickness And the effect can be improved in terms of beauty.
  • the aspherical design of both sides is applied to the range corresponding to the distance portion, the middle portion, and the near portion, so that the effect of expanding the field of view and minimizing the astigmatism, as well as the sudden The jumping phenomenon due to the change of the frequency can be reduced, so that the movement of the visual line is smooth, so that the wearer's adaptability to the spectacle lens is enhanced and the visual field is wider.
  • the present invention applies the aspherical surface design to both the myopic surface and the astigmatism surface, thereby limiting the distortion of the astigmatism surface by applying the aspherical surface design only to the inner surface of the existing lens.
  • Lt; / RTI > In particular, for those wearing progressive multifocal lenses with both nearsightedness and astigmatism and those with progressive myopia / astigmatic astigmatism, those with aspheric design on both sides of the lens have little or no astigmatism or distortion The effect of increasing the adaptation rate of the wearer of the progressive multifocal lens and improving the quality of daily life is provided.
  • the present invention is characterized in that it is applied to the near portion in a divided manner (Di (unit: diopter): the difference between the near vision power and the far vision power).
  • the degree of addition Di refers to a difference in surface refractive power between the original application number measurement position F and the near-use number measurement position N.
  • the addition degree is +2.00 diopter
  • Apply +1.00 diopter to CC (convex) and +1.00 diopter to CV (concave) back when applying +1.00 diopters to each CC (convex surface) / CV (concave surface), the wearer feels astigmatism to +1.00 diopters. Therefore, the wearer felt astigmatism to +2.00 in the conventional product It is possible to reduce the wearer's maladjustment by half, and the field of view can be made much wider and more comfortable. This effect can be felt larger at larger frequencies.
  • the above-mentioned joining of the near portion can be applied differently to the CC (convex) / CV (concave) depending on the condition of the wearer of glasses.
  • +0.25 diopter is applied to the front CC If you apply +1.75 diopter to the CV (concave side) on the back and +1.75 diopter on the front CC (convex side), you can apply +0.25 diopter to the CV (concave side) on the back side. You can even apply +0.00 diopters to the front CC (convex) and +2.00 diopters to the back CV (concave).
  • the aspheric design When the aspheric design is applied to the myopia and astigmatism of the progressive multifocal lens, the aspheric design is applied to all the surfaces of the distal portion, the middle portion, and the near portion. At this time, The distortion can be minimized even in different fields of view of the near portion, and the adaptation rate can be increased when the lens is worn.
  • the present invention can have a more comfortable and wide field of view due to the advantages of aspheric design in any condition as well as a wearer of a progressive multifocal lens having both myopia and astigmatism, It is possible to obtain a much better effect than a conventional product even if the wearer has the frequency.
  • the aspherical surface design method of the personalized progressive multifocal lens of the present invention can be applied to the preform design application step using personal parameters (characteristic / habit), the aspherical surface design of CC (convex surface) / CV
  • the application step, the progressive multifocal lens thickness minimization design application step and at least one step of applying the joining degree (Di, unit: diopter) to the CC (convex side) and the back side CV (concave side) do not necessarily have to be performed sequentially.
  • the present invention provides a personalized progressive multifocal lens employing a preform design using a personal parameter and a double-sided aspherical design, and the following three types of manufacturing methods can be selectively applied to the lens.
  • the first method is to design the CC (convex surface), which is the front side of the blank semi-finished product, as the aspherical surface, and apply the aspherical surface design to the inner surface of the lens by the preforming method.
  • CC convex surface
  • the second method is to apply a double-sided aspheric design to the blank product (semi-finished product) to make both sides CC (convex side) / back side CV (asymmetric) aspheric.
  • the third method is to apply a double-sided aspherical design to the blank product (finished product) to make the front face CC (convex face) / rear face CV (concave face) both sides aspheric.
  • the present invention relates to a progressive multifocal design lens, an anti-putty type progressive multifocal design lens for early presbyopic patients, a progressive multifocal design lens for indoor / office office design, a key topographic progressive multifocal design , It is possible to expect many effects ranging from the viewpoint of the wearer to minimize the astigmatism, the weight reduction of the spectacle lens due to the thickness reduction, and the cosmetic effect thereof.
  • the eye movement can be smooth and a more comfortable view can be provided.
  • the aspherical design double-sided aspherical design
  • both the CC (convex) / CV (concave) surfaces it is possible to apply the optimal aspherical design to both wearers with myopic / astigmatic or primitive.
  • the spectacle lens to which the present invention is applied is a lens used as a progressive-power lens for presbyopia.
  • the progressive-power lens is generally used for reasons of being a spectacle lens for a nose, but being advantageous in that it can not be easily perceived by a magnifying lens in appearance, but is advantageous in that it can be continuously brightened without disturbance from a long distance to a near distance .
  • the progressive-power lens processed by the present invention is, for example, a one-side progressive-power lens having a progressive surface on either the first refractive surface, which is the object side surface, or the second refractive surface, which is the eyeball side surface.
  • the second surface has a progressive power action divided and divided into a first refractive surface and a second refractive surface.
  • the first surface and the second surface are matched to each other, and the dioptric power and the degree of addition Which is a bi-aspherical type progressive-power lens having a configuration that gives a spherical aberration.
  • the lens base material of the spectacle lens is preferably a plastic lens base material, more preferably a plastic lens base material for spectacles.
  • a copolymer of methyl methacrylate and one or more other monomers a copolymer of diethylene glycol bisallyl carbonate and one or more other monomers
  • copolymers are not limited to, copolymers, polycarbonates, polystyrenes, polythiourethanes, sulfido resins using ene-thiol reactions, vinyl aggregates including sulfur, But is not limited thereto.
  • the spectacle lens manufacturing system includes an order terminal 21 and a main frame (spectacle lens designing apparatus) 22, which are connected via a public communication line 23 .
  • the order terminal 21 is disposed in an optician 20 as an order source.
  • the main frame 22 is disposed in a factory 24 as a manufacturer of glasses.
  • the ordering terminal 21 of the optician 20 supports inputting of various kinds of data required for ordering the spectacle lens and displays them.
  • the input unit of the order terminal 21 allows at least the prescription value data of the eye to be examined to be inputted.
  • the prescription value data and the like inputted to the ordering terminal 21 are transmitted to the main frame 22 of the factory 24 via the communication line 23.
  • the main frame 22 stores prescription value data or the like as order receipt data.
  • the main frame 22 stores a spectacle lens design program, a machining data generation program, and the like. Upon receiving prescription value data and the like from the order terminal 21, .
  • the design program has a function of creating design data of each spectacle lens based on the acquired prescription value data.
  • the machining data generation program has a function of generating machining data required when the cutting means 27 performs actual lens machining based on the design data created by the design program.
  • This processing data includes the surface design data of the spectacle lens, the prescription value data, the type of the blank to be processed, and the like.
  • the main frame 22 generates the machining data as the control information of the cutting means 27 by executing the spectacle lens designing program and the machining data generating program and simultaneously transmits the machining data generated to the factory server 26 .
  • the factory server 26 stores the process data together with the order number of the order data. Each processed data to be stored is given a manufacturing number used only in the manufacturing factory for each order data for identification, and associated with each processing data.
  • the cutting means 27 obtains the machining data from the factory server 26 via the LAN 29 and carries out cutting processing of the lens surfaces 3 and 5 of the spectacle lens 1 on the basis of the machining data sequentially .
  • the processing order of the lens surfaces 3 and 5 to be processed may be either of the first or second order.
  • all requests for information in the manufacturing process to the factory server 26 executed by the calculator terminal 28 are made through the serial number information.
  • the calculator terminal 28 creates the cutting related information corresponding to the manufacturing number information And requests the factory server 26 to process the data.
  • the factory server 26 transmits the processed data to the communication control unit 30 of the calculator terminal 28 via the LAN 29 in accordance with the request.
  • the processed data to be transmitted includes, for example, the surface design data of the spectacle lens, the prescribed value data, the kind of the spectacle lens, and the like.
  • the communication control unit 30, the arithmetic processing unit 31 and the control unit 32 are connected by the LAN 36.
  • the calculation processing section 31 calculates the details of the data for machining from the received machining data.
  • the cutting means 27 shown in Fig. 5 has a lower axis E and a higher axis D by three-axis control by NC control.
  • the lower shaft E is axially rotated without the spectacle lens 1 being installed.
  • the upper shaft D has a first shaft portion G provided with a first byte F for roughness cutting and a second shaft portion I provided with a second byte H for finishing cutting, And the upper shaft D is slid in the X direction with respect to the fixed lower shaft E so that the first and second upper shaft portions G and I are changed.
  • the material of the cutting blade B of the first and second bytes F and H for example, sintered diamond or single crystal diamond is used.
  • the computer terminal 28 sends the design height data of the concave surface represented by the matrix to the control unit 32).
  • the calculator terminal 28 also transfers the spiral machining locus 4 corresponding to the concave shape to the control unit 32.
  • the control section 32 controls the upper axis D and the first and second upper axis portions G and I so that the cutting blade B of the bytes F and H is positioned at the spiral machining locus 4,
  • the working lens surface 5 is cut by moving according to the above-mentioned processing point K.
  • the machining accuracy of the cutting means 27 is within 3 ⁇ ⁇ (lens diameter: 50 mm), and the maximum surface roughness Rmax is about 03 to 05 ⁇ ⁇ .
  • the machining locus is shown in Fig.
  • the cut lens surface 2 is polished by a polishing apparatus to complete an optical surface having a predetermined curved surface.
  • a polishing apparatus As a polishing apparatus, a polishing apparatus as disclosed in FIG. 3 of Japanese Unexamined Patent Publication No. 2003-266287 and a general polishing apparatus (TORO series) of a commercially available LOH company are used .
  • TORO series general polishing apparatus
  • the lens is cut by the cutting means 27 in the same manner as in the case of the convex lens surface 3, Optical surface.
  • the main frame 22 of the factory 24 receives a request for making a spectacle lens from the optician 20.
  • the optician 20 before ordering the spectacle lens, Specification information of the spectacle lens necessary for designing other lenses is inputted to the ordering terminal 21.
  • the specification information includes the type of spectacle lens and specific information.
  • prescription data includes spherical power of the left and right eyes of the customer, cylindrical power of the circumference, astigmatism axis, degree of joining, distance of the same space, and naked eye. Then, the ordering terminal 21 transmits the entered spectacle lens information and prescription value to the main frame 22 via the communication line 23 online to request the manufacture of the spectacle lens.
  • Step 2 Calculate the surface shape data of the lens convex surface
  • the main frame 22 calculates the machining data used by the cutting means 27 rather than the received data and stores it in the factory server 26 or stores it on the LAN 29 To the cutting means (27).
  • the machining data is output in a format used in each of the machining apparatuses and the inspection apparatuses and includes at least concave and convex shape data of the spectacle lens.
  • Step 3 Calculation of average curvature of lens convex surface
  • the calculator terminal 28 obtains the average curvature radius R (RT) of the convex surface shape data of the spectacle lens.
  • the average curvature radius RT is a radius of curvature in which the most difference is small when the entire surface shape of the spectacle lens is approximated to a spherical shape.
  • the difference between the lens shape value and the approximate spherical surface is calculated by a least squares method in a computer or the like, and the radius of curvature at which the difference becomes the smallest is defined as the average radius of curvature RT.
  • an average curvature CT is obtained from the obtained average radius of curvature RT.
  • Step 4 Calculation of trajectory of convex surface spiral shape
  • Step 5 Computation of convex surface machining locus (3D)
  • the surface shape data of the spectacle lens is represented by a function of three-dimensional data (X, Y, Z).
  • the two-dimensional data (X, Y) values of the helical processing locus are substituted into the surface shape data composed of the three-dimensional data (X, Y, Z)
  • the machining point K on the corresponding lens surface is specified,
  • the three-dimensional machining point position coordinate values (X, Y, Z) are determined.
  • the three-dimensional machining point position coordinate values (X, Y, Z) are sent to the cutting means 27.
  • the cutting means 27 controls the cutting tool to move on the spiral machining locus 4 calculated in step 4 according to the specified three-dimensional machining point position coordinate values (X, Y, Z) 3) is cut to form a desired surface shape.
  • Step 7 Convex surface polishing
  • the cut convex surface 3 is polished.
  • polishing the convex surface 3 of the spectacle lens is cut into a predetermined shape by the cutting means 27, the spectacle lens is removed from the cutting means 27 and attached to the polishing apparatus, Polish.
  • Step S8 Calculating the surface shape data of the lens concave surface
  • the main frame 22 calculates the machining data to be used by the cutting means 27 in the received data and stores it in the factory server 26 or transmits it to the cutting means 27 via the LAN 29.
  • the machining data is output in a format used in each of the machining apparatuses and the inspection apparatuses and includes at least concave surface shape data of the spectacle lens.
  • Step S9 Calculation of the average curvature of the lens concave surface
  • the calculator terminal 28 requests the average curvature radius R (RO) of the concave surface shape data of the spectacle lens.
  • the average radius of curvature RO of the concave surface 2 is a radius of curvature which is the smallest when the entire surface shape of the spectacle lens 1 is approximated to a spherical shape.
  • the difference between the lens shape value and the approximate spherical surface is calculated by the least square method, and the radius of curvature where the difference becomes the smallest is set as the average curvature radius RO.
  • Step S10 Calculation of Trajectory of Concave Spiral Machining
  • Step S11 Calculation of concave surface machining locus (3D)
  • the concave surface shape data of the spectacle lens 1 is displayed as a function of the three-dimensional data (X, Y, Z), and the two-dimensional data (X, Y)
  • the respective machining points K on the corresponding concave surface 2 are specified and the respective three-dimensional position coordinate values (X, Y, Z) are sent to the cutting means 27.
  • the concave surface 2 of the spectacle lens 1 is cut by the cutting means 27.
  • Step S13 concave surface polishing process
  • the cutting process of the concave surface 2 is completed, the cutting process of the concave surface 2 is performed next.
  • a polishing apparatus used for convex surface polishing is used for the polishing of the concave surface 2.
  • the convex face 3 and the concave face 2 are subjected to dyeing, surface treatment, inspection, and the like, and the spectacle lens 1 passed the inspection is released as a product to the optician of the client.
  • a dust measuring means is installed at one end of a cutting means (27), dust is detected through the dust measuring means (2000), and when dust above a reference level is detected, the dust is outputted through an alarm signal, To remove the dust present in the surface.
  • the data measured by the dust measuring means 2000 is transmitted to the dust measurement calculation unit 3000.
  • the dust measurement calculation unit 3000 calculates the data measured by the dust measurement means and displays the data on the display 4000 do.
  • the dust measuring means 2000 of the present invention includes an infrared transmitting means (A) for emitting infrared rays, a receiving means for receiving the light emitted from the infrared transmitting means and positioned to face the infrared transmitting means, (D) for controlling the input voltage of the infrared ray transmitting means (A) to increase when the output voltage of the infrared ray receiving means (B) is smaller than a predetermined value, an infrared ray receiving means (C).
  • A infrared transmitting means
  • D for controlling the input voltage of the infrared ray transmitting means (A) to increase when the output voltage of the infrared ray receiving means (B) is smaller than a predetermined value
  • an infrared ray receiving means (C) for controlling the input voltage of the infrared ray transmitting means (A) to increase when the output voltage of the infrared ray receiving means (B) is smaller than a predetermined value
  • the infrared transmitting unit A receives the infrared transmitting control signal from the dust measuring control unit C, determines the infrared transmitting amount, and outputs the changed infrared transmitting amount.
  • the dust measurement control section C predicts the dust generation amount based on the data of the infrared ray receiving means B, And outputs a control signal to the infrared ray transmitting means (A) to adjust the infrared ray transmission amount to induce the output.
  • the light amount data outputted from the infrared ray receiving means is read by the dust measurement control unit, and the light amount of the infrared light emitting means is automatically controlled based on the read light amount data, so that the sensitivity adjustment is automatically maintained constant. So that the measurement can be performed while maintaining the sensitivity state.
  • the dust measurement control section C determines that the degree of contamination is high when the amount of received light of the infrared ray receiving means B is low, and outputs a control signal to increase the light amount of the infrared ray transmitting means A If the amount of light received by the infrared ray receiving means C is too high, a contamination-free state or a precise measurement becomes difficult. Therefore, a control signal is outputted so as to lower the light amount of the infrared ray transmitting means A That is, it is necessary to keep the amount of infrared transmission light in an appropriate state.
  • the infrared ray amount measured through the infrared ray receiving means is accurate and the dust amount can be more precisely predicted.
  • the dust amount data measured by the dust measurement control unit of the present invention can output the dust measurement result with high reliability.
  • the transmission control unit 11 recognizes the control signal and drives the infrared ray transmitter conversion unit to perform the most appropriate infrared ray transmission .
  • the infrared transmitter converting means 12 includes a plurality of floating electromagnets 12a, 12b and 12c which are wound around the actuator 13 and are mounted to be spaced apart from each other by a predetermined distance and fixed to a position adjacent to the floating electromagnets 12a, 12b and 12c 12b and 12c and the fixing electromagnets 12d, 12e, and 12f, when the signal from the transmission control unit 11 is applied, And magnetic force is generated between the floating electromagnets 12a, 12b, and 12c and the fixing electromagnets 12d, 12e, and 12f by the magnetism to drive the actuator 13.
  • the actuator 13 is provided with a plurality of concave lens groups for limiting the infrared ray output by the flow of the infrared transmitter converting means 12.
  • the infrared transmitter flow unit 14 for performing this operation includes an infrared ray transmitting element 14a for outputting infrared rays to the outside in the vicinity of the concave lens group 15 formed in the longitudinal direction at the outer peripheral edge of one side of the actuator 13, A moving bar 14b for moving the infrared ray transmitting element 14a and a solenoid 14c for moving the infrared ray transmitting element to the left and right by moving the moving bar.
  • the infrared transmitting lens group 15 is designed so that a plurality of the infrared transmitting lens groups 15 are arranged on the working rod, and the output power of the infrared ray light is varied according to the depression angle of the center portion.
  • the infrared ray of different intensity can be outputted.
  • the infrared ray is to be output with higher light output
  • light is output through the fourth concave lens 15d provided below the third concave lens 15c.
  • a fifth concave lens 15e provided below the second concave lens 15d.
  • the concave lens group is designed to have a different degree of output of infrared light depending on the depression angle of the central portion, and a lens having different degrees of depression can be selected by the movement of the infrared transmitter conversion means to output infrared light of different intensity
  • the third concave lens 15c is basically provided at the center of the working rod and forms a depression angle of 25 degrees.
  • the second concave lens 15b is used for outputting a slightly reduced amount of infrared light.
  • the second concave lens 15b is provided above the third concave lens 15c and forms a depression angle of 15 degrees.
  • the first concave lens 15a is used when it is necessary to further reduce the amount of infrared light and is disposed above the second concave lens 15b and forms a depression angle of 5 degrees.
  • the fourth concave lens 15d is used when the infrared ray is to be output with higher light output, and is provided at the lower side of the third concave lens 15c to form a depression angle of 35 degrees.
  • the fifth concave lens 15e is used when the infrared ray is to be outputted with a higher light output, and is provided at the lower side of the fourth concave lens 15d and forms a depression angle of 45 degrees.
  • the actuator 13 When the infrared light needs to be increased, the actuator 13 is moved up and the actuator 13 is lowered when the infrared light needs to be reduced.
  • the first fixed electromagnet 12d-the first movable electromagnet 12a, the second fixed electromagnet 12e-the second movable electromagnet 12b, and the second fixed electromagnet 12b are controlled by the transmission control unit 11 in the control for descending one step of the working rod.
  • the first stationary electromagnet 2f and the third stationary electromagnet 2c are provided with a repulsive force signal and the second stationary electromagnet 12e and the first and second stationary electromagnets 12a and 12f, When the attracting signal is applied to the electromagnet 12b, the actuator 13 is lowered to place the first mounting electromagnet 12a at the position of the second fixing electromagnet 12e and the second mounting electromagnet 12b at the position of the third fixing electromagnet 12f.
  • the mounting electromagnet 12b is located. Accordingly, when the operating rod is lowered by one step, the infrared ray transmission element 14a comes close to the second concave lens 15b and outputs infrared light through the second concave lens 15b.
  • the first fixing electromagnet 12d-the first moving electromagnet 12a, the second fixing electromagnet 12e-the second floating electromagnet 12b, and the second fixing electromagnet 12b are controlled by the transmission control unit 11 in the control for the one-
  • the third fixed electromagnet 12f and the third floating electromagnet 12c are given a repulsive force signal and the first fixed electromagnet 12d-the second floating electromagnet 12b and the second fixed dedicated magnet 12d-
  • the actuator 13 rises to place the second mounting electromagnet 12b at the position of the first fixing electromagnet 12d and the second mounting electromagnet 12b at the position of the second fixing electromagnet 12e
  • the third mounting electromagnet 12c is positioned. Accordingly, when the operating rod is raised by one step, the infrared transmitting element comes close to the fourth concave lens 15d and outputs infrared light through the fourth concave lens 15d.
  • the first moving electromagnet 12a is positioned at the same position as the third fixing electromagnet 12f when the operation rod is lowered for two steps and accordingly the infrared transmitting element 14a is moved to the first concave lens 15a, And the third moving electromagnet 12c is positioned at the same position as the first fixing electromagnet 12d under the control for raising the actuator 13 in two steps, And outputs the light through the fifth concave lens 15e.
  • the present invention is further characterized in that a motion speed adjusting means 16 is further provided and is formed at the lower end of the actuator 13 so as to form a plurality of fitting holes 16a in the actuator 13,
  • the movement speed of the actuator 13 can be adjusted by inserting a weight adjusting pin 16b for adjusting the weight of the actuator in the hole.
  • the weight adjusting pin 16b is inserted into the fitting hole 16a. If one weight adjusting pin is installed, the weight of the operating rod is high, Slow flow is possible.
  • the movement speed adjusting means controls whether the movement of the actuator 13 is fast or slow. If the actuator 13 moves too fast, the sensitivity increases. If the actuator 13 moves too slowly, So that the user can selectively control the movement of the actuator 13.
  • the number of the fitting holes 16a and the number of the weight adjusting pins 16b can be varied according to need. In the embodiment of the present invention, three fitting holes 16a and three weight adjusting pins 16b ), So that the explanation can be made more convenient.
  • the dust measurement unit (3000) displays the notification status through the communication signal automatic output unit (1000)
  • the automatic output unit 1000 includes a power supply unit 1110, a first switching transistor, a second switching transistor, a third switching transistor, a fourth switching transistor, a relay switch, a first circuit connection switch sw1, A second circuit connection switch sw2, and a communication control unit 1120.
  • the power source unit 1110 applies power to its own power source.
  • the first switching transistor Q1 switches the circuit according to a switching signal input to the base.
  • the second switching transistor Q2 operates in accordance with the operation of the first switching transistor and switches the power source output from the power source unit.
  • the third switching transistor Q3 switches the circuit according to a switching signal input to the base.
  • the fourth switching transistor Q4 is provided on the other side of the output terminal of the power supply unit to switch the power supply unit output from the power supply unit.
  • the relay switch RL1 is coupled to the output terminal of the fourth switching transistor and generates a magnetic force when the fourth switching transistor is switched.
  • the first circuit connection switch sw1 performs a function of energizing the circuit by pulling the iron piece by the relay switch.
  • the second communication signal output power switch sw2 serves to induce a communication signal to be output through the communication signal output unit 1150 by supplying power to the communication signal output control unit 1140 while the iron wire is pulled by the relay switch do.
  • the communication controller 1120 switches the third switching transistor and the fourth switching transistor to switch the relay switch so that the first circuit connection switch and the second communication signal output power switch are switched,
  • a first circuit connection switch configured to switch the first switching transistor and the second switching transistor while turning off the switching transistor and the fourth switching transistor and to turn off the relay switch and simultaneously to be interlocked with the first switching transistor and the second switching transistor And maintains the communication state by continuing the switching state of the second communication signal output power switch.
  • the present invention is characterized in that it comprises a circuit board 1131 for operation, a wire piece 1132 for connection to a power supply for operating a communication signal control unit, a first resilient holding means 1133, a second resilient holding means 1134, (1133a), and a manual operation switch (1135).
  • the circuit-operating piece 1131 contacts the first circuit connection switch sw1 and relays the power delivered from the second switching transistor to continue the flow of power.
  • the communication signal output control unit power connection iron piece 1132 is designed to operate in conjunction with the circuit operation iron piece 1131. When the circuit operation iron piece 1131 is turned on, power is supplied to the communication signal output control unit 1140 Thereby inducing the communication device to operate.
  • the first elastic holding means 1133 is provided at the lower end of the circuit operation steel plate 1131 so that the first circuit connection switch sw1 and the circuit operation wire 1131 are always kept in the off state when the relay switch is not operated .
  • the second elastic holding means 1134 is installed on the upper portion of the first circuit connecting switch sw1 and is spaced apart from the first elastic holding means by a predetermined distance.
  • the circuit breaker 1131 is pulled to be coupled with the first resilient holding means 1133 while the first resilient holding means is overlapped, and at the same time, the first circuit connecting switch sw1 is switched Even if the operation of the relay switch is stopped, the state of attaching the circuit breaker 1131 continues to maintain the power supply state through the first switching transistor and the second switching transistor.
  • the communication piece 1132 is automatically operated to output the communication signal to the outside.
  • the gap maintaining means 1133a guides the second elastic holding means 1134 and the first elastic holding means 1133 to be engaged with each other while maintaining a constant gap without being directly coupled to each other when the first elastic holding means 1134 and the first elastic holding means 1133 are engaged, 1133 and the second resilient holding means 1134 can be more smoothly separated from each other by the action of the gap maintaining means at the time of disassembly. If the gap maintaining means is not present, the first elastic holding means 1133 and the second elastic holding means 1134 are directly attached to each other, so that mutual separation becomes difficult later. Accordingly, in the present invention, the first elastic holding means 1133 and the second elastic holding means 1134 can be easily separated by further providing the gap holding means 1133a.
  • the manual operation switch 1135 is connected to a wire for circuit operation and a wire for connection to a communication signal output control unit.
  • a wire for circuit operation and a wire for connection to a communication signal output control unit.
  • a control relation for outputting a communication signal will be described.
  • a power is applied to the third switching transistor and the fourth switching transistor to operate the relay switch RL1. Accordingly, the first circuit connection switch sw1 and the communication signal output power switch sw2 are turned on by the operation of the relay switch, and the power is applied to the communication signal output control unit 1140 to display the communication signal.
  • the control unit interrupts the operation of the third switching transistor and the fourth switching transistor to cut off the operation of the relay switch, and simultaneously operates the first switching transistor and the second switching transistor.
  • the control unit recognizes this, and then the third switching transistor and the fourth switching transistor are operated, It is possible to keep the closed circuit while moving the iron piece and at the same time return the power outputted to the communication signal control part 1140 to continuously operate the communication signal output part 1150.
  • the communication signal is continuously output to induce the notification factor to be solved.
  • the communication signal is automatically output by returning the power source again, It is possible to induce the operator to reliably solve the cause of the communication signal.
  • control unit If it is no longer necessary to output a communication signal, the control unit no longer applies a power supply signal to the first switching transistor, the second switching transistor, the third switching transistor, and the fourth switching transistor. ) Can be manually operated by a user to interrupt the communication signal.
  • the concave cooling means (400) is installed around the controller (30), and the heat generated in the controller (30) is supplied to the controller Detect and cool necessary parts.
  • the recessed portion cooling means 400 includes a cooling panel 410, a thermoelectric element 420, a heat dissipation panel 430, a heat dissipation fan 440, a cooling panel and a thermoelectric element transfer portion 450, (460), and a control unit (470).
  • the cooling panel 410 is made of aluminum metal and is located at one end of a speed-only announcement wireless terminal.
  • thermoelectric element 420 is attached to a lower portion of the cooling panel and transmits cooling heat to the cooling panel according to external electric power supply to rapidly cool the inside of the enclosure.
  • the heat dissipation panel 430 is slidingly connected to the lower portion of the thermoelectric element and is made of aluminum and collects heat generated by the action of the thermoelectric elements.
  • the heat-dissipating blower fan 440 attaches to the heat-dissipating panel and transfers the heat generated from the heat-dissipating panel to the outside through the rotation of the fan to cool the heat-dissipating panel.
  • the cooling panel and the thermoelectric-element transferring unit 450 are connected to a cooling panel, which is connected with a screw.
  • the cooling panel and the thermoelectric-element transferring unit 450 transfer the cooling panel and the thermoelectric element to a required point by self-
  • the temperature sensing unit 460 is installed at a predetermined interval to determine whether there is a temperature higher than a reference temperature and transmit the information.
  • the control unit 470 drives the cooling panel and the thermoelectric element transfer unit based on the information result of the temperature sensing unit, and controls the cooling unit and the thermoelectric element transfer unit so as to be located at the point where the cooling is required to cool the part.
  • the control unit 470 cools the required section according to the information of the temperature sensing unit and drives the driving motor 450b to rotate the screw 450a to transfer the cooling panel 410 and the thermoelectric element 420 to a required point .
  • the cooling panel 410 and the portion where the thermoelectric element 420 is present are cooled, thereby preventing a safety accident due to overheating.
  • the cooling heat is transferred to the portion where the cooling panel 410 and the thermoelectric element 420 are positioned and rapidly cooled.
  • Heat generated from the thermoelectric element 420 is moved through the heat dissipation panel 430, The heat is dissipated to the outside by the heat-dissipating blower fan 440 attached to the heat exchanger 430 to maintain the partially cooled state more strongly.
  • thermoelectric module 420 can slide the heat dissipation panel more easily.
  • the surface of the thermoelectric module 420 corresponds to the rail groove So that the thermoelectric element 420 can flow more smoothly from side to side on the rail 430a.
  • the rails 430a and the rail grooves 420a can form a plurality of pieces.

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

Abstract

La présente invention concerne un procédé de conception et de fabrication d'une surface asphérique double face d'une lentille multifocale progressive personnalisée, et comprend : un procédé de conception comprenant au moins l'une parmi une étape consistant à fournir une lentille multifocale progressive personnalisée par l'application d'une conception de préforme à l'aide de paramètres individuels (caractéristiques/habitudes), une étape de réduction au minimum d'un phénomène de distorsion, de commande de l'astigmatisme et de réduction au minimum des conditions inadaptées d'un utilisateur par l'intermédiaire d'une conception asphérique pour une surface myopique et une surface astigmatique, dans laquelle une conception de surface asphérique double face est appliquée à une surface convexe (CC)/surface concave (CV), une étape d'application d'une conception de réduction au minimum de l'épaisseur de la lentille multifocale progressive de façon à augmenter le confort d'utilisation et à améliorer un effet esthétique, et une étape d'application simultanée d'une addition (Di, unité : dioptrie) à une surface convexe (CC), qui est une surface avant, et une surface concave (CV), qui est une surface arrière, dans une partie de visualisation en vision de près, de façon à réduire respectivement l'astigmatisme et l'inadaptation de l'utilisateur ; et un procédé de fabrication comprenant un procédé de conception, en tant que surface asphérique, d'une surface convexe (CC) qui est une surface avant d'un produit vierge (produit semi-fini), et d'application d'une conception asphérique sur une surface intérieure de la lentille par l'intermédiaire d'un procédé de traitement de préforme, et un procédé d'application d'une conception pour produire, en tant que surfaces asphériques, les deux surfaces d'un produit vierge (semi-produit) ou un produit vierge (produit fini), qui est une surface convexe (CC), qui est une surface avant, et une surface concave (CV), qui est une surface arrière.
PCT/KR2018/015116 2018-01-05 2018-11-30 Procédé de conception et de fabrication d'une surface asphérique double face d'une lentille multifocale progressive personnalisée, et dispositif de fabrication de lentille asphérique double face à l'aide de celui-ci Ceased WO2019135498A1 (fr)

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CN113189790A (zh) * 2021-05-20 2021-07-30 维哲视光科技有限公司 球棒结构环型多点微透镜离焦镜片以及其设计方法
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KR102059888B1 (ko) * 2018-07-23 2019-12-27 (주)다울 컨테이너형 버섯재배장치 및 방법
KR101998197B1 (ko) * 2018-09-20 2019-07-11 (주)효성에너지 결합형 케이블 덕트 프레임을 이용한 태양광 발전장치 시스템
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CN113189790A (zh) * 2021-05-20 2021-07-30 维哲视光科技有限公司 球棒结构环型多点微透镜离焦镜片以及其设计方法

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