KR20040014121A - Kit for preventing axial misalignment during lens type process and method of lens type process using kit - Google Patents

Abstract

PURPOSE: A shaft dislocation prevention kit used at a lens shaping process for a glasses lens and a lens shaping method are provided to reduce the activity of lens surfaces so as to firmly fix the glasses lens onto a shaft member used at a lens shaping process. CONSTITUTION: A shaft dislocation prevention kit used at a lens shaping process for a glasses lens(4) prevents a shaft member from being dislocated from a lens with respect to the rotational motion. The shaft dislocation prevention kit is composed of a film coating agent applied onto a lens surface to form a film(7) attached onto the lens surface and an adhesive tape(8) including a support body having a predetermined strength and an adhesive attachable to the film.

Description

Axial shift prevention kit for jade processing of eyeglass lens and jade processing method of lens for eyeglass using same {KIT FOR PREVENTING AXIAL MISALIGNMENT DURING LENS TYPE PROCESS AND METHOD OF LENS TYPE PROCESS USING KIT}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a shaft misalignment prevention kit for use in jade processing of a lens for eyeglasses, and a jade processing method for a lens for eyeglasses using the same. The present invention relates to an axial shifting kit for use and a method of jade processing of a lens for eyeglasses using the same.

Conventionally, the surface of the spectacle lens is subjected to an antireflective coating, and a thin film antifouling coating having a water repellent property is applied to the upper layer to prevent adhesion of scale to the lens, or contaminants are hardly adhered by improving surface activity. It is also easy to fall off.

In order to match the shape of the spectacle lens with the size of the spectacle frame (frame), so-called jade processing is performed in which the outer periphery is processed into a predetermined shape by a processing member such as a grindstone. This roof processing is performed using a commercially available roof processing machine (lens edger). As a specific example of jade processing using such a jade processing machine, as shown in FIG. 1, the shaft member 1 in which the suction cup 12 made of synthetic resin was attached to the front-end | tip of the fixed shaft 11, and the fixed shaft 21 The shaft member 2 in which the pressing plate 22 is integrally bonded to the tip of the head) is disposed coaxially and pressed from both sides of the convex surface 41 and the concave surface 42 of the lens 4 for spectacles, respectively. The lens 4 by fastening the lens 4 with the shaft members 1 and 2, and then rotating the shaft members 1 and 2 at a high speed while using the processing member such as a grindstone (not shown). ) May be processed into a predetermined shape.

In this case, according to the hardness of the suction cup 12, the adhesive member for strengthening the connection force of the shaft member 1 and the lens 4 can be used suitably. Specifically, in the case of using a suction cup made of rubber having a small hardness and a large elasticity, for example, it is not necessary to use the fixing member, but in the case of using a suction cup having a large hardness, the adhesive member shown in FIG. 5) The spectacle lens 4 and the suction cup 12 are adhered to each other and fixed. As such an adhesive member 5, a double-sided tape called a lens lock tape is generally used. Moreover, also about the press plate 22 integrally joined to the front-end | tip of the shaft member 2, said adhesive member 5 can be adhere | attached appropriately, and the connection force of the shaft member 2 and the lens 4 can also be strengthened. have.

However, in addition to the antifouling coating described above, in order to prevent fingerprints from being attached, for example, when a coating agent for improving the surface activity made of a fluorine-based compound is coated on the surface, the non-adhesiveness of the lens surface, the low friction coefficient, etc. Since the activity of the lens surface is further improved, the axial shift between the shaft member and the lens is caused during jade processing, which causes problems such as the detachment of the lens for spectacles, which makes accurate jade processing difficult.

The present invention has been made in view of the above circumstances, and particularly, in the case of jade processing a highly active spectacle lens subjected to a pollution prevention treatment, an axial misalignment prevention kit for preventing axial misalignment between the shaft member and the lens, and The main object of the present invention is to provide a jade-shaped processing method for a lens for glasses.

BRIEF DESCRIPTION OF THE DRAWINGS The front view which showed the specific example of the jade shape processing of the lens for eyeglasses using a jade shape machine.

2 is a view showing a test method for evaluating the surface activity of the spectacle lens.

3 is a view showing an embodiment in which a film and an adhesive tape are formed and adhered to a lens surface by using the axial shift prevention kit of the present invention.

Explanation of symbols on the main parts of the drawings

1: shaft member 11: fixed shaft

12: suction cup 2: shaft member

21: fixed shaft 22: pressing plate

4: eyeglass lens 41: convex surface

42: concave surface 5: adhesive member

6: fitting frame 61: string

7: film 8: adhesive tape

The shaft misalignment prevention kit of the present invention is the shaft member and the lens according to the rotational movement in the case where the lens for the spectacle is rotated by being inserted coaxially with the shaft member from both sides of the convex surface and the concave surface of the spectacle lens, and rotating. An axial shift prevention kit used to prevent axial shifts between a film, a film forming agent for forming a film that is tightly fixed to a lens surface by coating on the lens surface, a support having a predetermined strength, and an adhesive on the film. It consists of an adhesive tape which has at least possible adhesive.

According to the shaft shift prevention kit of the present invention, since the lens surface is reduced in activity and the lens for eyeglasses and the shaft member used for the jade processing are firmly connected and fixed, even when the shaft member is rotated and driven, the shaft member and the lens It is possible to accurately perform the jade machining without causing the axial deviation of.

In addition, the axial shift prevention kit of the present invention exhibits a remarkable effect when applied to a spectacle lens having a high surface activity antifouling treatment, and is particularly contaminated with a fluorine-based surface antifouling coating that increases surface activity. As in the case where the prevention treatment is performed, it can be suitably used for a lens for spectacles having a high surface activity.

Moreover, the film formation agent which comprises the axial shift | offset | difference prevention kit of this invention can use suitably containing a synthetic resin and a solvent. According to such a film forming agent, the coating operation of the film forming agent can be easily performed, and since the solvent is volatilized in a short time of several minutes, a film can be formed to be tightly fixed to the spectacle lens without gaps. The solvent type film forming agent whose synthetic resin is vinyl acetate resin and a solvent is methanol is used preferably.

Moreover, the adhesive tape which comprises the axial shift prevention kit of this invention is comprised by having the support body which has predetermined intensity | strength, and the adhesive which can be adhered on the said film at least. As the support, plastics such as cellophane, acetate, polyvinyl chloride, polyethylene, polypropylene, polyester, and polyimide can be preferably used, and cellophane film and polyester film can be particularly preferably used. Specifically, in this invention, what has at least an adhesive which consists of a support body which consists of a polyester film, and silicone type resin as a preferable adhesive film is mentioned.

In the jade processing method of the spectacle lens of the present invention, after forming and coating the film-forming agent on the convex surface of the spectacle lens or the concave surface as needed, the film is fixed to the spectacle lens. The pressure-sensitive adhesive tape is adhered on the film, and then the shaft member used for the jade processing is pressed against the pressure-sensitive adhesive tape, and the shaft member is coaxially inserted from both sides of the convex surface and the concave surface of the lens for eyeglasses, and rotated. It is characterized by processing a lens for spectacles into a predetermined shape.

Such a jade processing method can be widely applied to a jade processing machine, which is usually sold so that it can be used in an eyeglass retailer, so that the eyeglass processing of the eyeglass lens can be performed simply and surely.

Embodiment of the invention

The axis shift prevention kit of the present invention is suitably applied to jade processing of a lens for spectacles, and is composed of a film forming agent and an adhesive tape.

The material of the lens for spectacles to which the axial shift prevention kit of this invention is applied is not specifically limited, It can be used irrespective of plastics, glass, or other materials. The surface of the spectacle lens is subjected to various surface treatments such as antireflection treatment, antifouling treatment, hard coating, impact resistant hard coating, dyeing treatment and ultraviolet absorption treatment. It can be applied even when any surface treatment is carried out, and can be preferably used particularly for lenses having high surface activity.

Specifically, since the surface activity of the lens is remarkably improved when the fluorine-based surface antifouling coating agent is coated, the axial shift prevention kit of the present invention can be suitably used particularly for lenses processed with a coating agent made of a fluorine-based compound. . Here, as resin used for a fluorine-type coating agent, a tetrafluoroethylene resin (PTFE), a tetrafluoroethylene hexafluoropropylene copolymer (FEP), a tetrafluoroethylene perfluoroalkyl vinyl ether copolymer (PFA), a modified | denatured Although TFE etc. are mentioned, the spectacle lens with the surface coated with such a resin improves the activity of a lens surface because of the peculiar characteristic of non-tackiness and low friction characteristics.

In addition, the surface activity of the lens is improved even when the silicone-based surface antifouling coating agent containing silicone resin as a main component is improved, so that the axial displacement prevention kit of the present invention can be suitably used for a lens processed with such a coating agent.

Here, the surface activity of the lens can be easily evaluated by, for example, using the test method shown in FIG. Specifically, one adhesive surface of the double-sided tape 5 (trade name; Leap II Finish Blocking Pads, manufactured by 3M) is adhered to the suction cup 12 attached to the tip of the fixed shaft 11 described with reference to FIG. The other adhesive surface is adhered to the convex surface 41 of the lens 4 to fix the shaft member 1 and the lens 4. Next, a weight of 2 kg is attached to the fitting frame 6 of a predetermined weight having an opening that can accommodate the lens 4 in the center portion through the string 61, and the lens 4 is set in the fitting frame 6. Then, the time until the double-sided tape 5 peels off and falls off from the lens 4 is measured. If the peeling time is 30 seconds or more, the surface activity is about normal, and even if a commercially available jade type | mold machine can be used, an accurate octagonal process can be performed by a conventional method. On the other hand, when peeling time is less than 30 second, since the activity of a lens surface becomes high, even if a commercially available jade type | mold machine is used, it becomes difficult to perform octagonal processing correctly. In general, when the lens surface is treated with the fluorine-based surface coating agent, the peeling time is less than 30 seconds.

The film forming agent constituting the anti-axis shift kit of the present invention has a role of reducing the surface activity of the lens for spectacles and contains a synthetic resin and a solvent as components. When the film-forming agent is applied to the lens surface, the solvent is volatilized and the synthetic resin is fixed to the lens surface by a film-like film.

The synthetic resin and solvent constituting the film-forming agent can be preferably used as long as they are used in a conventional solvent-containing fixing agent, and are not particularly limited. From the viewpoint of workability, the volatilization time of the solvent is preferably within 10 minutes. More preferably within 5 minutes, particularly preferably within 3 minutes. The film forming agent does not require particularly strong adhesive strength to the adherend, and it can be preferably used in the present invention, for example, having an adhesive strength of about the locking agent used for preventing loosening of screws. As a film forming agent which has such a performance, what contains vinyl acetate resin as a synthetic resin, and methanol as a solvent is mentioned.

Such a film forming agent may be used only on the convex surface of the lens for spectacles, or may be used on both sides of the convex surface and the concave surface. Specifically, one to several drops of a film-forming agent is added dropwise to the central portion of the convex surface (concave surface, if necessary) of the spectacle lens, and is wider than the portion where the spectacle lens is pressed by the shaft member used for jade processing of the lens. It is preferable to apply | coat and use it so that it may spread thinly using an area | region, for example, size of about 2 cm <2> -50cm <2> using a brush or a finger. When the solvent is volatilized, a film closely fixed to the lens surface is formed. In the present invention, the film-forming agent may be used in combination of any of the above synthetic resins and solvents, or a commercially available fixing agent may be used as it is. When using a commercial item, ThreeBond1401 by Three Bond Co., Ltd. can be used, for example.

The adhesive tape constituting the axial shift prevention kit of the present invention protects and reinforces the film formed by the film forming agent against stresses generated when the shaft member used for the jade processing is rotated, and further, the lens and suction It has a role which raises the connection force of a cup, and the support body which has predetermined intensity | strength, and the adhesive which adhered the adhesive on the said film on one side among the upper and lower surfaces of this support are used preferably.

Examples of the support include paper, cloth, plastic, rubber sheet, foam, metal foil, and the like, but in the present invention, in terms of strength of the support, cellophane, acetate, polyvinyl chloride, polyethylene, polypropylene , Plastic film made of polyester, polyimide and the like as a raw material resin can be more preferably used, and cellophane film and polyester film can be particularly preferably used.

Moreover, as an adhesive, rubber type adhesives, such as an acrylic adhesive, silicone adhesive, a natural rubber, styrene-butadiene rubber, isobutyrene rubber, isoprene rubber, a styrene-isoprene block copolymer, a styrene-butadiene block copolymer, are mentioned As long as it has adhesiveness which can be adhesive with respect to it, it can use without particular limitation. Specifically, in this invention, the adhesive sheet which consists of a combination of the support body which consists of polyester films, and the adhesive which consists of silicone type adhesives can be used preferably.

In addition, as an adhesive tape which can be applied to this invention, what apply | coated the peeling agent to the support surface to which said adhesive is not apply | coated, for example can also be used. When the adhesive tape which has such a laminated constitution is used, since it can be used as a long winding object, it is convenient in use. Specifically, a cellophane tape is used as a support, a cellophane tape (trade name; Cellopape (registered trademark), Nichiban Co., Ltd.), a polyester film is used as a support, and a silicone pressure sensitive adhesive is used as an adhesive. The adhesive tape (brand name; Srion tape, Srion Tech Co., Ltd.) which used this, and other adhesive tapes (brand name; Pascal, the Berggas Co., Ltd. product) can be used preferably.

When using an adhesive tape, the surface in which the adhesive which comprises an adhesive tape was apply | coated is adhere | attached on the part in which the said film was formed, and it is performed by fixing an adhesive tape to a film. FIG. 3 shows an example of the film 7 and the adhesive tape 8 formed and fixed to the spectacle lens in the case of using the axial shift prevention kit of the present invention. In addition, the width, length, and shape of the adhesive tape can be arbitrarily designed to suit the surface activity, the frequency, the curve, and the like of the lens for spectacles to be subjected to jade processing. For example, when using a lens having a very high surface activity or a lens having a high degree of power and having a thick side of the lens, an adhesive tape having a width of at least 3 cm and a length of about 5 cm is used to prevent the film from protruding from the film forming part in the finishing transverse direction of the lens. It is preferable to adhere. Moreover, when it is thought that this is inadequate only, it is preferable to stick the adhesive tape of the same magnitude | size as the above also in the finishing longitudinal direction of a lens.

The present invention is to perform the jade processing using a commercially available jade processing machine after the above-described axial shift preventing means is taken for the spectacle lens. As a commercially available jade type machine, it is sold as a lens edger for eyeglass lenses, and what is necessary is just to use the machine used in eyeglass retailers, etc. As a Japanese manufacturer, it is made of Nidec, dope corn, Hoya, weko, brio , Taku correction mechanism, Fuji agent, and grand precision agent can be illustrated. In addition, as manufacturers in Korea, Dong Yang Optical Co., Ltd., Dongyang Optical Co., Ltd., PICHINA Optical Co., Ltd. (PICHINA optics) can be illustrated.

The axis shift prevention effect in this invention is exhibited only by presence of a film and an adhesive tape. In other words, the coating alone does not have sufficient strength against rotation of the shaft member used for the jade processing, so that the coating breaks during the jade processing. In addition, the adhesive tape alone cannot be brought into close contact with the convex surface or the lens surface having the concave surface, if necessary, without a gap. Thus, wrinkles occur in the adhesive tape, and the effect of preventing the axial shift is insufficient.

Example

Hereinafter, an Example demonstrates this invention further in detail.

(Example 1)

Two drops of the film-forming agent were added dropwise to the central portion of the convex surface of the spectacle lens shown below, and the dropped film-forming agent was spread thinly with a fingertip so as to form a circle about 50 mm in diameter. It waited about 3 minutes until a film was formed, and then the adhesive tape of width 35mm and length 35mm was crimped | bonded on the film surface. Subsequently, jade-machining of the spectacle lens was performed by using a lens edger made of Nidec, and it was observed whether axial shift between the shaft member and the lens occurred during jade-machining. In this embodiment, one side of a double-sided tape called a common lens lock tape is adhered to the suction cup attached to the tip of the convex shaft member, and the other side is adhered to the release layer of the above-mentioned adhesive tape, thereby for the convex surface. The shaft member and the lens for the spectacles were fixed. Further, one surface of the lens lock tape was adhered to the tip of the concave shaft member, and the other surface was adhered to the concave surface of the lens to fix the concave shaft member and the lens for glasses.

[Glasses lenses]

Ten lenses with a high number of minus 6.00 D, in which a fluorine-based antifouling coating was applied over the convex and concave surfaces of a circular spectacle lens having a diameter of 70 mm, were prepared.

[Film forming agent]

As a synthetic resin, a film forming agent containing 25 to 35% by weight of modified vinyl acetate resin and 65 to 75% of methanol as a solvent was used (trade name: ThreeBondl401, manufactured by Three Bond Co., Ltd.).

[Adhesive tape]

A pressure-sensitive adhesive tape provided with a support body made of a silicone pressure-sensitive adhesive, a PET film, and a release layer was used (brand name: Srion Tape No.6263-50, manufactured by Srion Tech).

[Double-sided tape]

Lens lock tape (trade name; Leap II Finish Blocking Pads, manufactured by 3M) commonly used for jade processing was used.

(Comparative Example 1)

It carried out similarly to Example 1 except having adhered only the film forming agent to the convex surface of the spectacle lens.

(Comparative Example 2)

It carried out similarly to Example 1 except having adhered only the adhesive tape to the convex surface of the spectacle lens.

In Example 1, the axial shift | offset | difference between the shaft member and a lens in jade processing did not arise for all 10 lenses for eyeglasses. On the other hand, in Comparative Example 1, the coating film formed on the entire ten lenses of the spectacle lens was broken during the jade processing, and axial deviation occurred between the shaft member and the lens. In Comparative Example 2, the entire ten lenses of the spectacle lenses were applied to the adhesive tape during the jade processing. Several wrinkles occurred and axial shift between the shaft member and the lens occurred. From the above result, it was confirmed that the axial shift | offset | difference prevention kit of this invention cooperates with a film | membrane and an adhesive tape, and exhibits an axial shift | offset | difference prevention effect.

When the adhesive tape of Example 1 was grasped and peeled off after the completion of the jade processing, the lower layer of the film was also peeled off from the lens surface at the same time without leaving an adhesive trace. It was confirmed by this that the axial shift prevention kit of this invention does not require post-processing, and can provide the jade processing method excellent in workability.

As described above, according to the axial misalignment prevention kit of the present invention, since the activity of the lens surface is reduced so that the lens for eyeglasses and the shaft member used for jade processing are firmly connected and fixed, even when the shaft member is rotated and driven, Occasional machining can be performed accurately without axial deviation between the shaft member and the lens.

Claims (8)

Used to prevent shaft misalignment between the shaft member and the lens due to the rotational movement in the case where the lens for the spectacle is rotated by being inserted coaxially with the shaft member from both sides of the convex and concave surfaces of the spectacle lens, and rotating. As a shaft shift prevention kit to become, A film-forming agent for forming a film that is tightly fixed to the lens surface by coating on the lens surface; An axis shift prevention kit, comprising: a support tape having a predetermined strength and an adhesive tape having at least a pressure-sensitive adhesive on the film. 2. The axial displacement prevention kit according to claim 1, wherein the spectacle lens is subjected to a pollution prevention treatment. The anti-axis shift kit according to claim 1, wherein the spectacle lens is subjected to an antifouling treatment for enhancing surface activity by a fluorine-based antifouling coating agent. The anti-axis shift kit according to any one of claims 1 to 3, wherein the film forming agent contains a synthetic resin and a solvent. 5. A shaft shift prevention kit according to claim 4, wherein the synthetic resin is vinyl acetate resin and the solvent is methanol. 6. The shaft shift prevention according to any one of claims 1 to 5, wherein the support constituting the adhesive tape is made of plastic such as cellophane, acetate, polyvinyl chloride, polyethylene, polypropylene, polyester, polyimide, and the like. Kit. The axial shift prevention kit according to any one of claims 1 to 5, wherein the adhesive tape has at least a support made of a polyester film and an adhesive made of a silicone resin. By applying and drying the said film-forming agent on the convex surface of a spectacle lens or concave surface as needed, after forming the film fixed closely to the spectacle lens, the said adhesive tape is adhered on this formed film, Next, the axial member used for jade processing is pressed against this adhesive tape, and the axial member is coaxially fitted from both sides of the convex surface and the concave surface of the lens for eyeglasses, and rotated to process the lens for eyeglasses in a predetermined shape. The jade-type processing method of the lens for eyeglasses using the axial shift prevention kit of any one of Claims 1-7 characterized by the above-mentioned.