WO2005045480A1 - 保護フィルム付き光学レンズ基材および光学レンズ基材の製造方法 - Google Patents
保護フィルム付き光学レンズ基材および光学レンズ基材の製造方法 Download PDFInfo
- Publication number
- WO2005045480A1 WO2005045480A1 PCT/JP2004/014346 JP2004014346W WO2005045480A1 WO 2005045480 A1 WO2005045480 A1 WO 2005045480A1 JP 2004014346 W JP2004014346 W JP 2004014346W WO 2005045480 A1 WO2005045480 A1 WO 2005045480A1
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- WIPO (PCT)
- Prior art keywords
- optical lens
- protective film
- lens substrate
- lens
- mold
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
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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
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
- B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
- B24B9/14—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/00432—Auxiliary operations, e.g. machines for filling the moulds
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
Definitions
- the present invention relates to an optical lens substrate with a protective film and a method of manufacturing the optical lens substrate.
- the present invention relates to an optical lens substrate with a protective film and a method for producing an optical lens substrate.
- Optical lenses such as spectacle lenses manufactured in factories are wrapped in a relatively soft material called inner paper so that the optical surface (lens surface) is not damaged, and then placed in a lens bag. Shipped.
- the optical lens substrate in the manufacturing process is stored or transported in a state of being housed in a dedicated tray or a cleaning rack. At that time, the surface of the optical lens substrate is usually protected with a protective film to prevent the surface of the optical lens substrate from being scratched or dust adhered thereto (Japanese Unexamined Patent Publication No. No. 347611).
- optical lens substrate in the present invention is a general term for the following, and is used as a term.
- the lenses with a protective material described in Japanese Patent Application Laid-Open No. Hei 6-347611 have a transparent and peelable sheet adhered to each lens surface of an optical lens.
- a commercially available antistatic sheet for example, a stripper manufactured by SIMON, COBURN, Hitachi Synthetic Chemical, etc. Bull sheet, Laphrase (trade name) manufactured by Tonen Petrochemical, and Hybron film (trade name) manufactured by Mitsui Toatsuishi Oil Chemical are used. ing.
- the lens holder described in Japanese Patent Application Laid-Open No. 2003-053646 discloses a thin lens for double-sided adhesion when forming an unprocessed circular lens into a force-eye lens shape by edging and beveling.
- the convex lens surface of the lens is held through an elastic seal.
- the convex lens surface of the optical lens substrate is held by a mounting plate for polishing via a protective film layer and a low-melting metal. Then, the concave lens surface of the optical lens substrate is polished by a polishing dish.
- the protective film layer has water solubility and adhesion to the low melting point alloy, and can be removed by washing with water.
- the lens holder described in Japanese Utility Model Laid-Open No. 6-024852 and Japanese Patent Application Laid-Open No. 9-225798 is used for performing edging and beveling of spectacle lenses. Further, this lens holder has a concave spherical lens holding surface formed on a cylindrical body at the distal end surface, similarly to the lens holder described in JP-A-2003-053646, and is attached to this holding surface. It holds the convex lens surface of the circular lens of the powerless lens through a thin elastic seal for double-sided adhesion.
- a mold for molding a lens used for molding an optical lens for example, a mold for molding a plastic lens
- a mold for molding a plastic lens includes a pair of glass molds (hereinafter, also referred to as a mold) and a cylindrical gasket.
- the pair of molds is fitted inside the gasket with the transfer surfaces facing each other.
- the space surrounded by the gasket and the pair of molds forms a cavity, a monomer is injected into the cavity, and the monomer is heated and polymerized in an electric furnace to form a plastic lens.
- the pair of molds is usually stored in a dedicated cleaning rack with the transfer surface protected by a protective film.
- the optical lens, its intermediate product, and the mold are stored and transported and stored in the cleaning rack while being protected by the protective film.
- the protective film is removed when the optical lens is taken out of the cleaning rack and processed or used. You. After the protective film is removed, the optical lens, its intermediate product and MONOLED are washed to remove foreign substances and dirt adhering to the surface.
- an object of the present invention is to prevent a lens surface or a transfer surface from being scratched or adhered to foreign matter.
- an object of the present invention is to provide an optical lens substrate with a protective film and a method for manufacturing the optical lens substrate, which enables the protective film to be peeled off easily and in a short time.
- the present invention provides an optical lens substrate having a convex side surface on which a protective film for an optical lens substrate is releasably adhered, wherein the protective film comprises the optical lens substrate.
- a film layer having an outer diameter smaller than the material, and an adhesive layer having relatively low adhesive strength formed on one surface of the film layer, and a central portion of the protective film is formed on the convex side surface of the optical lens substrate. And the outer peripheral edge of the protective film is separated from the convex side surface force of the optical lens substrate.
- the convex surface of the optical lens substrate is protected by a protective film! /, So that the optical lens substrate can be transported, processed, stored in a cleaning rack, taken out, and the like. Damage to the convex side surface and adhesion of dust to the convex side surface can be reliably prevented. Further, since the outer peripheral edge of the protective film is not adhered to the optical lens substrate, the adhesive strength as the protective film can be reduced, and the protective film can be easily peeled off.
- FIG. 1 is a cross-sectional view of a plastic lens molding die before assembly.
- FIG. 2 is a sectional view of the same type after assembly.
- FIGS. 3A and 3B are views showing a state in which a protective film is adhered to the transfer surfaces of the first and second molds, respectively.
- FIG. 4 is a perspective view of a protective film.
- FIGS. 5A and 5B are a front view and a plan view of a cleaning rack.
- FIG. 6 is a flowchart showing a manufacturing process of a plastic lens according to the present invention.
- FIGS. 7A and 7B are a front view and a side view of a superposed lens.
- FIGS. 8A and 8B are a front view and a plan view of a film sticking apparatus.
- FIG. 9 is a view showing a backing sheet to which a protective film is adhered.
- FIG. 10 is a diagram showing a lens edging device.
- FIG. 11 is a plan view showing another embodiment of the present invention.
- a plastic lens molding die (hereinafter simply referred to as a die) 1 used for casting polymerization includes a gasket 2 and a pair of lens molding die (hereinafter, referred to as a die) fitted into the gasket 2. Molds or first and second molds) 3, 4).
- the gasket 2 includes a cylindrical portion 2A formed of a synthetic resin into a cylindrical body with both ends open, and an injection port portion 2B integrally protruding from a central portion in the height direction of the outer peripheral surface of the cylindrical portion 2A. It is composed of A ring-shaped protruding band 6 is integrally provided along the entire circumference at the center in the height direction of the inner peripheral surface of the cylindrical portion 2A.
- the inlet 2B is a part for injecting the monomer 5 into the gasket 2 at the time of molding the plastic lens. Therefore, the inside of the cylindrical portion 2A and the inside of the injection port 2B communicate with each other through the injection hole 7.
- the injection hole 7 is formed so as to penetrate the projection band 6.
- the first and second molds 3 and 4 are each formed in a meniscus shape with glass having the same outer diameter.
- the first mold 3 is a molding die for forming a convex lens surface of a plastic lens to be molded, and has a convex surface 3a and a concave surface 3b whose both surfaces are gently curved. Since the convex surface 3a is a surface that is not used as a lens molding surface, it is formed on an arbitrary finished surface. On the other hand, the concave surface 3b forms the transfer surface of the convex lens surface of the plastic lens to be molded. For this reason, the concave surface 3b is mirror-finished to a predetermined curved shape.
- the second mold 4 is a molding die for forming the concave lens surface of the plastic lens to be molded, and similarly has a convex surface 4a and a concave surface 4b whose both surfaces are gently curved. Since the convex surface 4a forms the transfer surface of the concave lens surface of the plastic lens to be molded, it is mirror-finished to a predetermined curved surface shape. On the other hand, since the concave surface 4b is not used as a lens forming surface, it is formed on an arbitrary finished surface!
- the mold 1 for molding a plastic lens is assembled.
- the first mold 3 is positioned by being pressed against the upper surface of the projection 6 with a predetermined pressure
- the amount of pressing into the gasket 2 is substantially independent of the type (frequency) of the lens to be molded. It is constant.
- the second mold 4 is opposed to the first mold 3 at a predetermined distance by being pushed in by a pushing amount corresponding to the type of the lens to be molded.
- a space 8 surrounded by the first and second molds 3 and 4 and the protruding band 6 is formed inside the gasket 2.
- the space 8 forms a cavity for forming a plastic lens, and communicates with the outside of the gasket 2 through the injection hole 7 and the injection port 2B.
- the transfer surface 3b of the first mold 3 and the transfer surface 4a of the second mold 4 transfer the optical surface shape and surface state of the plastic lens to be manufactured. It is directly transferred to the lens surface of the manufactured plastic lens and becomes a defective product. Therefore, care must be taken when handling the first and second molds 3 and 4. For this reason, when not in use, as shown in FIGS. 3A and 3B, the protective film 10 is adhered to the transfer surfaces 3b and 4a of the first and second molds 3 and 4, respectively, to protect them. It is stored in a dedicated washing rack 20 shown in FIG. 5B.
- the protective film 10 is made of polyethylene and ethylene-butyl acetate copolymer or low-density polyethylene and has a circular shape (for example, a diameter of 65 mm) smaller than the outer diameter of the first and second molds 3 and 4.
- a film layer 10A and an adhesive layer 10B having an EVA-based adhesive formed on the back surface of the film layer 10A.
- a protrusion 11 is provided on a part of the outer periphery of the protective film 10 so as to protrude from the body.
- the film layer 10A is colored in an appropriate color such as green, blue, red or the like that is easily visible.
- the thickness of the film layer 10A is 50-100 ⁇ m.
- the size of the protrusion 11 is 5 mm wide x 10 mm long
- the reason for coloring the film layer 10A of the protective film 10 is to enhance the visibility of the protective film 10.
- the present invention can be implemented even if the film layer 10A is transparent.
- the film layer 10A is a transparent protective film, it is necessary to peel it off, so the film layer 10A is colored to improve visibility. It is desirable to use a film.
- adhesive force of the adhesive layer 10B is weaker adhesion than the conventional commercially available, for example 4 one 15 g / 25 mm 2 approximately (measurement conditions adhesion peel rate 300MmZmin, peel angle 180 °, (By an acrylic-resistant plate).
- Tensile strength (vertical) of adhesive layer 10B is 150 kg / cm 2
- tensile strength (horizontal) is 145 kg / cm 2
- Young's modulus (vertical) is lOOOKg / cm 2
- Young's modulus (horizontal) is 110 OKg / cm 2
- tensile impact It is preferable that the strength (vertical) is llKg X cm / 10 sheets
- the tensile strength (horizontal) is llKg X cmZlO sheets
- the static friction coefficient is 2tan 0
- the haze value is about 11%.
- the portion Since the portion is wavy and wrinkled, it cannot be adhered in a state of being in close contact with the convex transfer surface 4a, and a gap 12 is formed between the convex transfer surface 4a and the convex transfer surface 4a.
- the size of the gap 12 varies depending on the curvature of the convex transfer surface 4a, the material and thickness of the film layer 10A, and the like.
- the transfer surface 3b Since the transfer surface 3b is a concave surface, the generation of wrinkles on the outer peripheral portion is significantly less than that of the transfer surface 4a, which has a convex surface force. (Excluding the portion 10a) can be brought into contact with the concave transfer surface 3b. Therefore, there is almost no gap between the concave transfer surface 3b and the protective film 10.
- the cleaning rack 20 has a size that accommodates, for example, a total of 24 molds in two rows in an upright state.
- FIG. 5A shows an example in which 24 first molds 3 are stored
- FIG. 5B shows a state in which 12 types of first molds 3 and 3 'having different radii of curvature of the transfer surface are stored respectively. Is shown.
- the spacing between the front, rear, left and right sides of the space for accommodating each mold 3, 3 'of the cleaning rack 20 is set relatively small because of reasons such as the size of the cleaning machine, cleaning efficiency, and efficient use of the storage space. I have. Therefore, when the molds 3 and 3 are taken in and out, it is necessary to take great care not to bring the mold 3 and 3 ′ into contact with the concave transfer surface of the mold 3 and the cleaning rack 20 so as not to damage them.
- the concave transfer surface of each mold 3 and 3 ′ is required.
- the projecting portion 1 Oa (FIG. 3A) of the protective film 10 projecting from 3b is stored with the upward facing.
- the second mold 4 shown in FIG. 3B it is preferable to store the second mold 4 with the protrusion 11 of the protective film 10 facing upward.
- step 100 of FIG. 6 the first and second molds 3 and 4 shown in FIGS. 1 and 2 are taken out of the storage, and adhered to the concave transfer surface 3b and the convex transfer surface 4a, respectively. Yes Remove the protective film 10 (Fig. 3A, Fig. 3B) (step 101). Next, these molds 3 and 4 are washed (step 102).
- Peeling of the protective film 10 is performed by air blowing. At the time of peeling, the protective film 10 is blown off by blowing upward force air to the molds 3 and 3 ′ stored in the cleaning rack 20 (FIGS. 5A and 5B) using an air gun. At this time, since the protruding portion 10a of the protective film 10 attached to the first mold 3 protrudes above the mold 3, air is applied to the protruding portion 10a so that the convex side transfer surface 3b of the protective film 10 is formed. The protective film 10 can be easily removed from the first mold 3 by spraying the side force.
- the gap 12 (between the convex side transfer surface 4a and the outer peripheral portion (10a) where the protrusion 11 of the protective film 10 protrudes is provided. It can be easily removed by blowing air in Fig. 3B).
- the protective film 10 peeled from the mold 3 falls to the lower part of the cleaning rack 20 and is collected.
- the air pressure of the air blow is about 0.4MPa.
- the protective film 10 may be removed by a cleaning liquid (water) instead of air blow. In this case, similarly, the cleaning liquid may be sprayed onto the gap 12 between the convex transfer surface 4a and the protective film 10 by a nozzle.
- Step 103 it is inspected whether or not the concave transfer surface 3b and the convex transfer surface 4a of the cleaned molds 3 and 4 are damaged or foreign matter is attached. If the inspection passes, the molds 3 and 4 are fitted into the gasket 2 to assemble the mold 1 shown in FIG. 2 (step 104).
- the raw material monomer is also taken out of the warehouse (Step 105), and a catalyst is added at a predetermined ratio, and the mixture is sufficiently stirred and blended (Step 106). Then, the thus stirred and prepared monomer 5 is filtered with a filter and injected into the mold 1 (step 107).
- the raw material monomer for a plastic lens include various monomers used as a raw material for a plastic lens.
- acrylic resin diethylene glycol bisaryl carbonate polymer, (halogenated) diphenol acrylate polymer of bisphenol A and its copolymer, (halogenated) urethane-modified (meth) acrylate polymer of bisphenol A, Raw material monomers such as urethane polymers and copolymers thereof are used.
- a copolymer lens using a mixture of two or more of these monomers.
- a catalyst and, if necessary, an ultraviolet absorber, a releasing agent, a bluing agent, an antioxidant, etc. can be added to the raw material monomer for the plastic lens.
- the catalyst is appropriately selected according to the type of the monomer.
- various ultraviolet absorbers can be used according to the optical properties, weather resistance, and the like required of the plastic lens.
- the mold 1 is placed in an electric furnace and heated to a predetermined temperature to polymerize the monomer 5 (step 108).
- the heating conditions are appropriately adjusted according to the type and composition of the monomer 5 (in the case of a mixture), the type of the catalyst, and the like. Insufficient polymerization causes aging and color variation during dyeing, so it takes sufficient time (for example, about 12 to 48 hours) to polymerize.
- the raw material monomer 5 becomes a polymer, it shrinks more than the volume of the monomer 5 depending on its type, so it is necessary to polymerize in consideration of this shrinkage.
- This polymerized lens 30 is an intermediate product of a plastic lens.
- the concave transfer surface 3b and the convex transfer surface 4a of the used first and second molds 3 and 4 are inspected by transmitted light and reflected light, respectively (Step 110). If there is no abnormality by the inspection, the new protective film 10 is again adhered to the concave transfer surface 3b and the convex transfer surface 4a of each of the molds 3 and 4 (Step 111) and stored in the dedicated cleaning rack 20 (Step 111).
- a protective film 10 is stuck to the center of the convex lens surface 30a of the overlapped lens 30 so that no scratch or foreign matter is attached (step 115), and illustration is omitted.
- a lens-specific cleaning rack Store in a lens-specific cleaning rack (step 116).
- the lens-specific cleaning rack is formed substantially identical to the mold-specific cleaning rack 20 shown in FIGS. 5A and 5B. Therefore, even when the superimposed lens 30 is moved in and out of the cleaning rack dedicated to the lens, it is necessary to take great care not to damage the cleaning rack by hitting the convex lens surface 30a.
- the convex lens surface 30a of the superimposed lens 30 has a predetermined thickness, similarly to a semi-finished lens (a lens in which only the convex surface is optically finished). This is because it is finished to the precision of the above and is not post-processed. On the other hand, since the concave lens surface 30b is polished and finished to a predetermined accuracy in a later process, it is not necessary to attach the protective film 10 at this time.
- the protective film 10 is adhered to the convex lens surface 30a such that the center of the protective film 10 is substantially aligned with the center of the convex lens surface 30a in the same manner as the adhesive to the convex transfer surface 4a of the second mold 4. . For this reason, the outer peripheral edge of the protective film 10 is separated from the convex lens surface 30a, and a gap 31 is formed between them.
- the attachment of the protective film 10 to the molds 3 and 4 and the polymerized lens 30 is automatically performed by the film attaching device 40 shown in FIGS. 8A and 8B.
- the film sticking device 40 includes a winding mechanism 43 that unwinds a roll-shaped backing 41 to which the protective film 10 is stuck from a supply reel 42 and winds the roll onto a winding reel (not shown), a peeling blade 44, and a rubber
- a seal plate 45 made of an elastic material such as the above, a static eliminator 46, and first and second cylinders 47 and 48 are provided.
- a predetermined number (for example, 800) of protective films 10 are adhered to the mount 41 in a line at predetermined intervals.
- the mount 41 has a width of 75 mm, the outer diameter of the protective film 10 is 65 mm, and the arrangement pitch P of the protective film 10 is 70 mm.
- the mount 41 wound on the supply reel 42 has its leading end pulled out to be below the peeling blade 44. When guided to the front end of the surface, it is turned 180 ° toward the front side of the peeling blade 44 and guided below the first and second cylinders 47 and 48, and the front end is fixed to the take-up reel. Then, the mount 41 is intermittently fed out of the supply reel 42 by the winding mechanism 43 when the protective film 10 is automatically stuck by the film sticking device 40, and is wound on the wind reel.
- the peeling blade 44 separates the protective film 10 from the mount 41 by inverting the mount 41 by 180 °.
- the protective film 10 separated from the mount 41 falls onto the seal plate 45 with the adhesive layer 10B facing upward, and is occupied by the convex lens surface 30a of the polymerized lens 30 being pressed from above.
- the first cylinder 47 is a movable cylinder that reciprocates in the transport direction of the protective film 10, holds the mount 41 in the forward operation and moves in the direction of the second cylinder 48, and mounts in the return operation. It is configured to release the holding state of 41 and return to the original position shown in FIG. 8A.
- the second cylinder 48 is a fixed cylinder fixed to a fixing portion of the film sticking device 40, and is configured to operate at the time of the return operation of the first cylinder 47 to hold the mount 41. This is because the mount 41 is pressed so as not to be pulled back by the return operation of the first cylinder 47.
- the static eliminator 46 discharges the static electricity generated on the protective film 10 by spraying the ions onto the protective film 10 peeled from the mount 41. Therefore, it is not necessary to apply special antistatic treatment to the protective film 10.
- the static eliminator 46 is a commercially available product, for example, a bipolar DC corona discharge type, a static elimination distance of 50 mm to 500 mm, a static elimination area of 400 mm ⁇ 400 mm, and a TAIBS ion balance control type.
- the next outer peripheral processing step (edging step) is performed together with the rack. Sent to Then, in this etching step, the outer periphery of the superposed lens 30 is processed by the edging device 55 shown in FIG. 10 (step 117).
- the outer peripheral portion of the polymerized lens 30 has an uneven shape due to the transfer of the inner surface of the gasket 2, and the outer diameter is not constant due to a scratch at the time of release. For this reason, in order to adjust the shape of the outer peripheral part and accurately form the outer diameter, the polymerized lens released by the edging process is used.
- the outer periphery of is cut by cutting (several mm) to finish it to the specified outer diameter.
- the lens outer peripheral end surface (non-optical surface) It is impossible to hold the edge. Therefore, although not optimal, the optical surfaces of the convex lens surface 30a and the concave lens surface 30b are held by the holding means. Specifically, as shown in FIG. 10, the concave lens surface 30b is vacuum-sucked by the suction disk 50, and is held by pressing the O-ring 51 against the convex lens surface 30a.
- the edging force is obtained by cutting the outer peripheral portion with a cutting blade 52 while rotating the held polymerization lens 30 at a high speed.
- a cutting load is applied to the outer peripheral portion of the overlapped lens 30, the reaction at the center of the lens is amplified by the "leverage principle", so that it is necessary to maintain a sufficient lens holding force.
- the convex lens surface 30a may be damaged.
- the protective film 10 is previously adhered to the convex lens surface 30a, and the O-ring 51 is pressed against the convex lens surface 30a via the protective film 10 so as to prevent the occurrence of scratches. ing.
- the concave lens surface 30b is polished by post-processing, it is not always necessary to attach the protective film 10.
- the superposed lens 30 is removed from the curdling device 55 and stored in a dedicated cleaning rack. Then, the attached protective film 10 is removed from the polymerized lens 30 by air blowing or spraying of cleaning water (Step 118). Next, the polymerization lens 30 in the cleaning rack is cleaned by a cleaning machine (first cleaning) to remove cutting chips and the like attached to the surface (Step 119).
- the washing machine used in the present embodiment has a washing space called a washing layer or a washing bath of 12 layers.
- the polymerized lens 30 stored in the cleaning rack is immersed in the first-layer cleaning liquid, and is sequentially sent to the final layer for cleaning. Therefore, if the size of the washing rack is increased, the size of each washing layer must also be increased, and the size of the washing machine itself will be significantly increased. Therefore, considering the installation space of the washer, the size of the washer and the washing rack can be designed to the minimum necessary. In addition, large washing racks This is not desirable from this point because the physical load on the worker when transporting it to the warehouse or the next process increases.
- step 119 it is not preferable to perform the cleaning with the protective film 10 adhered.
- the reason is that when the polymerized lens 30 with the protective film 10 is washed with a washing machine, if the adhesive layer 10B is partially peeled off from the film layer 10A and reattached to the polymerized lens 30, cleaning cannot be performed. is there. Also, if the peeled film layer 10A or adhesive layer 10B is clogged in the drain port, it cannot be drained, which adversely affects the function of the washing machine itself. Further, in the cleaning machine, a force for forcibly removing the foreign matter adhering to the lens surface by the ultrasonic wave is prevented.
- the protective film 10 blocks the ultrasonic wave and the cleaning effect on the lens surface cannot be sufficiently obtained. Therefore, when the polymerized lens 30 is washed by the washing machine, the protective film 10 is removed by air blow in advance, and then washed after vigorously. Such a washing machine is also used for cleaning the molds 3 and 4.
- a first lens inspection is performed (step 120).
- the first lens inspection in step 120 is an appearance inspection performed for inspecting an abnormality such as a scratch on the optical lens surface.
- the lens surface is irradiated with white light, and the reflected light is used for inspection.
- the surface of the polymerized lens 30 is smoothed by annealing treatment to remove optical distortion (Step 121).
- the annealing treatment is performed by heating the polymerized lens 30 at a temperature of about 100 ° C. for about 112 hours.
- the polymerized lens 30 is transferred from the cleaning rack to a special heat-resistant tray.
- the polymerized lens 30 is housed in an electric furnace together with a special tray, and an annealing process is performed.
- a second lens inspection (step 122) is performed.
- a superimposed lens 30 is installed between the zircon lamp and the screen to create a lens projection image by transmitted light, and the projection image is used to inspect the internal defect of the superimposed lens 30.
- the protective lens 10 is stuck on the convex surface 30a of the superposed lens 30 and is stored again in the exclusive cleaning rack. After being stored in the cleaning rack, only the protective film 10 is removed by air blowing, and the surface treatment (staining, step 124) of the polymerized lens 30 is performed through the second cleaning step (step 123).
- a third lens inspection (last A final inspection is performed, step 125), and the passed products are packaged with layout mark paint and marking (step 126) and shipped from the factory as products (step 127).
- the manufacturing process in the present invention is different from the conventional manufacturing process in that a protective film peeling process in steps 101, 115, and 118 is added.
- the optical lens substrate can be cleaned without considering the orientation of the protective film 10 so much.
- the protective film 10 can be further easily peeled off by air blowing or spraying of a cleaning liquid.
- the force showing the protective film 10 in which the adhesive layer 10B is coated on the entire back surface of the film layer 1OA is not limited to this.
- a protective film 10 ′ in which the adhesive layer 10 B is applied only to the center of the back surface of the film layer 10 A and the outer peripheral edge is not coated with the adhesive layer 10 B, and the non-adhesive layer portion 10 C is used. Good.
- the adhesive strength can be reduced as compared with the case where the adhesive layer 10B is applied to the entire back surface, so that the adhesive layer can be more easily peeled off when air or a cleaning liquid is sprayed. Therefore, in this case, it is not necessary to provide the projection 11 on the protective film 10.
- the protective film 10 is not limited to a circular shape, and may have an appropriate shape such as an ellipse or a star.
- the protective film 10 when the protective film 10 is adhered by the film adhering device 40, a force applied only to the convex surface 30a of the polymerized lens 30 may be applied to the concave surface 30b as necessary. It is possible.
- the protective film 10 on the convex surface 30a side and the concave surface 30b side may be sequentially removed by changing the direction of the air gun or nozzle at the time of peeling by air blowing or spraying of a cleaning liquid.
- the protrusions 11 of the protective film 10 face upward. 1S It is not always necessary to make the protrusion 11 upward as long as it is a position where air blow or cleaning liquid can be sprayed.
- the present invention is not particularly limited to the force applied to the production of a plastic lens using a plastic lens molding die 1 and is not limited to this.
- the production of a plastic lens / glass lens by polishing, the production of a lens molding die by polishing, and the softening It is also suitable for manufacturing lens molds.
- the present invention can be applied to the manufacture of another lens using a cleaning rack, for example, a lens for a camera.
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Abstract
Description
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04788374A EP1684097B1 (en) | 2003-11-10 | 2004-09-30 | Optical lens base with protective film and process for producing optical lens base |
US10/577,592 US7660051B2 (en) | 2003-11-10 | 2004-09-30 | Optical lens base with protective film and process for producing optical lens base |
US12/642,618 US7813059B2 (en) | 2003-11-10 | 2009-12-18 | Optical lens base with protective film and process for producing optical lens base |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2003-380155 | 2003-11-10 | ||
JP2003380155A JP4391801B2 (ja) | 2003-11-10 | 2003-11-10 | 保護フィルム付き光学レンズ基材および光学レンズ基材の製造方法 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US12/642,618 Division US7813059B2 (en) | 2003-11-10 | 2009-12-18 | Optical lens base with protective film and process for producing optical lens base |
Publications (1)
Publication Number | Publication Date |
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WO2005045480A1 true WO2005045480A1 (ja) | 2005-05-19 |
Family
ID=34567223
Family Applications (1)
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PCT/JP2004/014346 WO2005045480A1 (ja) | 2003-11-10 | 2004-09-30 | 保護フィルム付き光学レンズ基材および光学レンズ基材の製造方法 |
Country Status (6)
Country | Link |
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US (2) | US7660051B2 (ja) |
EP (1) | EP1684097B1 (ja) |
JP (1) | JP4391801B2 (ja) |
KR (1) | KR100852316B1 (ja) |
CN (1) | CN100394216C (ja) |
WO (1) | WO2005045480A1 (ja) |
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JPWO2011135979A1 (ja) * | 2010-04-28 | 2013-07-18 | コニカミノルタ株式会社 | 撮像用レンズの製造方法 |
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JP5148844B2 (ja) * | 2006-06-05 | 2013-02-20 | Hoya株式会社 | 眼鏡レンズの製造方法および眼鏡レンズ |
EP2088454B1 (en) * | 2006-11-21 | 2018-09-19 | Nikon Corporation | Optical member and method for manufacturing the same |
JP4286905B2 (ja) * | 2006-12-14 | 2009-07-01 | パナソニック株式会社 | レンズおよびその製造方法 |
WO2009016921A1 (ja) | 2007-07-27 | 2009-02-05 | Hoya Corporation | 眼鏡レンズの製造方法 |
FR2945358B1 (fr) | 2009-05-11 | 2011-12-09 | Essilor Int | Produit comportant une lentille ophtalmique souple, et procede de montage d'une telle lentille ophtalmique souple sur un verre de lunettes |
EP2590642B1 (en) | 2010-07-08 | 2018-03-14 | Daniel L. Alkon | Pkc activators and anticoagulant in regimen for treating stroke |
FR2962676B1 (fr) * | 2010-07-13 | 2012-08-03 | Essilor Int | Procede de detourage d'une lentille ophtalmique de lunettes comportant un film de revetement. |
WO2012108866A1 (en) * | 2011-02-10 | 2012-08-16 | Essilor International (Compagnie Generale D'optique) | Process of drilling organic glasses using a thermoplastic film protecting against cracking and crazing |
US9120277B2 (en) | 2011-02-10 | 2015-09-01 | Essilor International (Compagnie Generale D'optique) | Process of drilling organic glasses using a thermoplastic film protecting against cracking and crazing |
US9274253B2 (en) * | 2013-05-08 | 2016-03-01 | Essilor International (Compagnie Générale d'Optique) | Process of drilling organic glasses |
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JP7212488B2 (ja) * | 2018-10-01 | 2023-01-25 | ホヤ レンズ タイランド リミテッド | 眼鏡レンズの製造装置および製造方法 |
CN114147504B (zh) * | 2021-12-14 | 2023-04-11 | 江苏集萃精凯高端装备技术有限公司 | 镜片固定装置及镜片的超精密车削加工方法 |
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2003
- 2003-11-10 JP JP2003380155A patent/JP4391801B2/ja not_active Expired - Fee Related
-
2004
- 2004-09-30 WO PCT/JP2004/014346 patent/WO2005045480A1/ja active Application Filing
- 2004-09-30 EP EP04788374A patent/EP1684097B1/en not_active Not-in-force
- 2004-09-30 KR KR1020067008881A patent/KR100852316B1/ko not_active IP Right Cessation
- 2004-09-30 US US10/577,592 patent/US7660051B2/en not_active Expired - Fee Related
- 2004-09-30 CN CNB2004800330415A patent/CN100394216C/zh not_active Expired - Fee Related
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2009
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US3962833A (en) | 1975-03-31 | 1976-06-15 | Minnesota Mining And Manufacturing Company | Method for the alteration of a lens and an adhesive lens blocking pad used therein |
JPS5257592A (en) * | 1975-11-06 | 1977-05-12 | Seiko Epson Corp | Sheet for processing lenses |
JPH021867A (ja) * | 1988-06-10 | 1990-01-08 | Daiwa Giken Kk | フィルム剥離装置 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2011135979A1 (ja) * | 2010-04-28 | 2013-07-18 | コニカミノルタ株式会社 | 撮像用レンズの製造方法 |
CN102310355A (zh) * | 2011-09-16 | 2012-01-11 | 天津市中环高科技有限公司 | 一种异形手机玻璃镜片的加工工艺 |
CN102310355B (zh) * | 2011-09-16 | 2013-02-13 | 天津市中环高科技有限公司 | 一种异形手机玻璃镜片的加工工艺 |
Also Published As
Publication number | Publication date |
---|---|
EP1684097A1 (en) | 2006-07-26 |
US7813059B2 (en) | 2010-10-12 |
CN100394216C (zh) | 2008-06-11 |
US7660051B2 (en) | 2010-02-09 |
US20100097568A1 (en) | 2010-04-22 |
KR20060086397A (ko) | 2006-07-31 |
JP2005141162A (ja) | 2005-06-02 |
CN1879042A (zh) | 2006-12-13 |
EP1684097B1 (en) | 2013-02-27 |
JP4391801B2 (ja) | 2009-12-24 |
US20070002454A1 (en) | 2007-01-04 |
EP1684097A4 (en) | 2007-07-04 |
KR100852316B1 (ko) | 2008-08-14 |
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