JP2007246102A - Contact lens container and manufacturing method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a contact lens container having a new structure, which stably stores a contact lens in a sealed space for a long time, prevents degradation of the visibility of printed information, and effectively prevents the container from being soiled with a coloring agent scattering during printing. <P>SOLUTION: Laser beams 42 are emitted to at least a container body or a lid sheet 14, thereby forming colored portions 52 in an area of at least the container body 12 or lid sheet 14, where the laser beams 42 are condensed. Using at least one of the colored portions 52, an information recorded layer 26, 30 displaying information about a contact lens is formed on at least the container body 12 or lid sheet 14. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a contact lens container used for storage, transportation, provision, etc. of a contact lens, and in particular, by covering the opening of a housing recess of a container body housing a contact lens with a lid sheet in a fluid-tight manner. The present invention relates to a contact lens container in which a contact lens is accommodated in a sealed state.

  Conventionally, in such a contact lens container, information about the contained contact lens is recorded on the surface of the container body and the surface of the lid sheet so that the information on the contained contact lens can be confirmed. What has been proposed is proposed. Display of information in such a contact lens container is generally performed by directly using necessary printing techniques such as offset printing and gravure printing to obtain necessary information such as optical characteristics and lot numbers of contact lenses accommodated. Generally, it is performed by printing on the surface of the container in a state where it can be visually recognized.

  However, in such a contact lens container having a conventional structure, the printing surface for information such as characters, symbols, and data codes is directly exposed on the container surface. Therefore, the printed surface comes into contact with another member (such as another contact lens container or an outer box containing the contact lens container) during transportation or storage of the contact lens container, and the paint is peeled off. In some cases, printing becomes thin and printing information becomes difficult to read.

  In general, after the contact lens is accommodated in a sealed state, the container is sterilized at the final stage of the package. When heat treatment such as autoclave treatment is performed as such sterilization treatment, the paint on the printing surface may be altered or discolored by heat, which may make it difficult to read print information.

  In view of such a problem, for example, in Patent Document 1 (Japanese Patent Laid-Open No. 2000-25715), a dye layer is formed on the surface of the metal foil layer, and a synthetic resin layer is formed on the surface of the dye layer. There has been proposed a cover label for a contact lens container in which a laminated film is employed, and information such as characters and symbols is visibly displayed by removing a synthetic resin layer and a dye layer in the laminated film with a laser. According to this, since the metal foil layer is not directly exposed to the atmosphere, and the surface of the dye layer is also covered with the synthetic resin layer, the metal foil layer is deteriorated due to oxidation deterioration or display thinning. It is believed that some defects can be prevented.

  However, in the label described in Patent Document 1, the metal foil layer is directly exposed to the outside in the portion where the dye layer is deleted. Therefore, the metal foil layer is exposed to the atmosphere, and corrosion or the like at that part is inevitable. Further, in the operation of removing the dye layer, which is directly above the metal foil layer, by laser irradiation, it is difficult to completely avoid laser irradiation to the metal foil layer. Therefore, there is a possibility that a bad influence such as a temperature change may be exerted on the contact lens and the storage solution stored in the container due to the laser irradiation on the metal foil layer.

  In Patent Document 2 (Japanese Patent Laid-Open No. 2002-331372), a synthetic resin layer is formed between the metal foil layer and the dye layer, and the removal of the dye layer by laser light irradiation is performed at an intermediate portion of the synthetic resin layer. Thus, a label structure has been proposed in which the metal foil can be prevented from being exposed to the atmosphere in the removed portion of the pigment layer.

  However, the laminated film described in Patent Document 2 still has problems to be solved. That is, in the printing methods described in Patent Document 1 and Patent Document 2, when marking a character or a symbol by removing the dye layer by laser irradiation, the removed dye is scattered around and the display is There was also a risk of blurring and contamination.

  Further, in the printing method described in Patent Document 1 or Patent Document 2, the concave portions of the synthetic resin layer and the dye layer removed by laser irradiation open on the printing surface. Therefore, it is unavoidable that irregularities are formed on the surface of the printing part, and the irregularity is caught on other members, and the information display surface is damaged, or foreign matter enters the concave parts and the display becomes difficult to read. There is a problem that it is difficult to write information with high resolution.

JP 2000-25715 A JP 2002-331372 A

  Here, the present invention has been made in the background as described above, and the problem to be solved is that the contact lens can be stored in a sealed state, and various information can be clearly and An object of the present invention is to provide a contact lens container having a novel structure that can be stably displayed.

  Hereinafter, the aspect of this invention made | formed in order to solve such a subject is described. In addition, the component employ | adopted in each aspect as described below is employable by arbitrary combinations as much as possible. Further, aspects or technical features of the present invention are not limited to those described below, but are described in the entire specification and drawings, or an invention that can be understood by those skilled in the art from those descriptions. It should be understood that it is recognized based on thought.

  That is, a feature of the present invention is that a contact lens is formed by overlaying a lid sheet on a container body made of a synthetic resin material having a housing recess and fluidly covering the opening of the housing recess. In the contact lens container having a sealed structure containing region, at least one of the container body and the lid sheet is provided with a display portion made of a light-transmitting synthetic resin material, and inside the display portion An information recording layer in which information is recorded by utilizing discoloration due to laser light irradiation is formed.

  In the contact lens container having the structure according to the present invention, the conventional structure printed by exposing the metal foil layer or the dye layer on the surface by printing on the surface of the display part or by forming the concave part formed on the display part; In contrast, an information recording layer is formed inside a display portion made of a light-transmitting synthetic resin material. Therefore, it is not necessary to print with a paint or the like attached to the surface of the display unit, or to form a recess in the display unit to directly expose the colored layer.

  Therefore, in the contact lens container according to the present invention, the problem of peeling of the paint caused by the surface of the display unit coming into contact with other members is completely avoided, and the concave portion that is likely to cause scratches or dirt on the surface. Need not be formed on the surface. In addition, the laser beam is focused and irradiated inside the display unit, and information is recorded by the color changing action of the translucent synthetic resin material forming the display unit. The problem of the scattering of the paint caused by the irradiation of the laser beam, which is likely to be a problem in the described information display structure, can be completely avoided.

  As a result, according to the present invention, a contact lens container that can stably maintain a clear display function of information for a long period of time can be advantageously realized.

  In the contact lens container according to the present invention, it is desirable that the display portion is formed with a flat surface shape. That is, since the surface of the display part in the container main body or the lid sheet is made flat, it is easy to read the information displayed there. Also, when recording information, the surface of the display portion is flattened, so that information recording work by condensing control during laser light irradiation becomes easy. As a result, information can be recorded and read on the display section more clearly and easily.

  In the contact lens container according to the present invention, the lid sheet has a laminated structure of a metal foil and a resin layer, and a structure in which the display unit is formed by the resin layer is preferably employed. The Adopting a metal foil as the base layer ensures a high level of hermeticity in the container and prevents functional deterioration and damage of the lid sheet due to laser irradiation on the lid sheet. The original function of the sheet can be secured stably. In addition, since the metal foil is colored and opaque, there is an advantage that information recorded by using the color change in the resin layer laminated thereon is easy to read due to the presence of the metal foil behind.

  Furthermore, by forming the information recording layer on the lid sheet, for example, in different types of contact lenses, the lid sheet is made different so that the display information corresponds to each contact lens, so that the container body can be shared. Is also possible. Further, the lid sheet is disposed so as to cover the opening of the housing recess formed in the container body, and generally has a large flat surface shape. By displaying, a large display area of information can be secured, and a lot of information can be displayed.

  Further, in the contact lens container according to the present invention, the display unit is a colored transparent colored layer, and the information recording layer is changed to a color different from the color of the colored layer by irradiation with the laser beam. Thus, a structure in which information is displayed is preferably employed. If such a structure is adopted, for example, the contrast and contrast between the colored transparent color (ground color) used as the base in the information recording layer and the color (display color) changed by laser irradiation are appropriately set. As a result, it is possible to improve the readability of information. Alternatively, by appropriately selecting the ground color of the information recording layer and the display color changed by laser irradiation, for example, information that can be read only with light of a specific wavelength and cannot be easily visually recognized from the outside. You can also record.

  Further, in the contact lens container according to the present invention, the display unit is formed on a portion of the container main body that is the overlapping surface of the cover sheet, and the cover sheet is opaque, and the display A structure in which the information recording layer in the part is a concealed information recording layer covered with the lid sheet in an invisible manner is preferably employed. If such a structure is adopted, confidential information such as personal information of the contact lens wearer cannot be directly read until the contact lens is removed from the container after the cover sheet is opened and during storage or transportation. Information can be protected as a state. Further, by adopting a concealed information recording layer, which will be described later, in combination with the concealed information recording layer, an area for information recording can be efficiently secured.

  Further, in the contact lens container according to the present invention, the display portion is formed on the lid sheet, and the manifestation information recording layer that is directly visible from the outside is formed by the information recording layer in the display portion. The structure is preferably employed. By adopting such a structure, for example, the type and optical characteristics of the contact lens can be displayed in a state that can be easily visually confirmed from the outside.

  Further, in the contact lens container according to the present invention, the lid sheet is configured to include a plurality of adhesive sheets that are detachably attached to each other, and at least one of the adhesive sheets includes The structure in which the information recording layer is formed as a concealed information recording layer that can be seen from the side of the sticking surface to another sticking sheet and cannot be seen from the surface of the lid sheet in the sticking state. Are preferably employed. If such a structure is adopted, the lid sheet is not peeled off from the container body, and the container in which the contact lens is accommodated is left unopened and can be read by peeling only the sticking sheet. A concealment information recording layer can be realized.

  In the lid sheet, a plurality of adhesive sheets provided with information recording layers in which the same or different information is recorded are adopted, and these adhesive sheets are overlapped with each other at different parts of the lid sheet or at the same part. It is also possible to stick and use in a laminated state. In particular, by adopting a plurality of adhesive sheets that are stacked on each other and adhered in a laminated state, and forming each information recording layer, in a limited-sized lid sheet, the display unit (information recording layer) It is possible to efficiently secure a large area.

  Further, in the contact lens container according to the present invention, the lid sheet is configured to include a plurality of adhesive sheets that are detachably attached to each other, and at least one of the adhesive sheets is A structure having a display portion on one of the front surface and the back surface and a pressure-sensitive adhesive surface that can be reattached on the other of the front surface and the back surface is suitably employed. If such a structure is employ | adopted, the peeled adhesive sheet can be affixed with an adhesive surface with respect to a suitable thing. Therefore, for example, the peeled adhesive sheet can be easily stored by sticking it to a medical chart or a dedicated management sheet, and for example, the traceability of the contact lens already provided to the user is realized. It is also possible.

  In the contact lens container according to the present invention, at least one of the container main body and the lid sheet, the display unit having a manifestation information recording layer as the information recording layer that is directly visible from the outside, and a surface thereof. And the display unit having a concealed information recording layer as the information recording layer that is covered with a covering sheet and is not directly visible from the outside and is visible by peeling the covering sheet. On the other hand, the information recorded in the information recording layer includes standard information that is information necessary for identifying the contact lens, and personal information that is information relating to the individual wearer of the contact lens, A structure in which the standard information is recorded on the manifest information recording layer and the personal information is recorded on the concealment information recording layer is preferably employed.

  With this structure, contact lens management and contact lens user management are efficient while ensuring easy use of contact lens information and protection of contact lens user personal information. It becomes feasible. That is, when a problem occurs in a prescribed contact lens, it becomes possible to easily obtain contact lens information and individual user information. For example, the user is provided with a contact lens container in use. As a result, ophthalmologists can efficiently understand contact lens information and individual user information, and use these information to quickly solve problems and expand problems. It is possible to prevent and further effectively improve.

  Furthermore, the present invention irradiates the display unit with a laser beam of a pulse laser having a pulse width in a femtosecond region when manufacturing a contact lens container having a structure according to the present invention as described above. The manufacturing method of the container for contact lenses which forms the said information recording layer which recorded the information by discoloring the inside of the said display part with this laser beam is also characterized.

  According to such a method of the present invention, the size of the colored portion formed by laser irradiation can be sufficiently reduced, and fine marking can be performed. Therefore, it is possible to increase the amount of information recorded in the unit space, and it is possible to record and display more information without increasing the size of the contact lens container, and the discoloration due to the laser light. The region can be set with high accuracy, and the visibility of display information can be further improved.

  In addition, by adopting a femtosecond pulse laser, the influence of heat during processing can be effectively reduced or avoided. Therefore, while preventing damage to the container body and lid sheet forming the display portion, it becomes possible to stably form the target colored portion inside, especially damage to the thin lid sheet is prevented, The fluid tightness of the contact lens housing portion can be exhibited with higher reliability.

  Hereinafter, in order to clarify the present invention more specifically, embodiments of the present invention will be described in detail with reference to the drawings.

  First, FIG. 1 shows a contact lens container 10 as one embodiment of the present invention. The contact lens container 10 is configured such that a package sheet 14 as a cover sheet having an area substantially equal to the upper surface of the package body 12 is attached to a package body 12 as a container body that accommodates contact lenses. . The package body 12 has a housing recess 16 that opens upward, and an opening peripheral edge of the housing recess 16 is a flange portion 18 that spreads outward. On the other hand, as shown in FIGS. 1 and 2, the package sheet 14 is configured by superposing a standard information display label 20 as an information recording sheet and a personal information display label 22 so as to be peeled and bonded. Then, the package sheet 14 is overlaid on the upper surface of the package main body 12 and pasted through the adhesive layer 23 so as to fluidly cover the opening of the accommodation recess 16 formed in the package main body 12. A contact lens container 10 is configured. Although not necessarily clear in the drawing, a contact lens and a storage solution for the contact lens are stored in a storage region 24 formed by covering the opening of the storage recess 16 with the package sheet 14. 1 and 2 show a state in which a part of the standard information display label 20 has been peeled off from the personal information display label 22.

  More specifically, the package sheet 14 has a laminated structure as shown in FIG. In FIG. 3 and FIG. 6 to be described later, it should be understood that their thicknesses are exaggerated and displayed at a larger ratio than actual so that the laminated structure of the labels can be easily understood. It is. In the following description, the vertical direction means the vertical direction in FIGS. 3 and 6 in principle.

  That is, as described above, the package sheet 14 is configured by overlapping the standard information display label 20 and the personal information display label 22. Furthermore, the standard information display label 20 is configured to include a first resin layer 26 as a resin layer and an adhesive layer 28 fixed to the back surface of the standard information display label 20, while the personal information display label 22 has a first resin layer as a resin layer from above. The two resin layers 30, the base sheet 32, and the transparent film 34 are overlaid, and each of these layers is bonded through adhesive layers 36 and 38. In short, the standard information display label 20 and the personal information display label 22 both have a laminated structure, and the standard information display label 20 and the personal information display label 22 are overlapped to form the package sheet 14 having a laminated structure. It is composed. In addition, as the 1st resin layer 26, the 2nd resin layer 30, and the transparent film 34, what has airtightness is desirable so that the aseptic condition in a container can be maintained, for example, polypropylene, polyethylene, ethylene vinyl acetate resin, Examples thereof include resins such as ethylene ethyl acrylate, ethylene acrylic resin, and polyester. Moreover, as the base material sheet 32, metal foil, a plastic film, a synthetic paper, etc. are illustrated, and in this embodiment, aluminum foil which is metal foil is employ | adopted especially.

  The first resin layer 26 and the second resin layer 30 are both formed of a transparent or translucent synthetic resin material having translucency, and are formed into a sheet shape having a flat surface shape. Further, the first resin layer 26 and the second resin layer 30 are respectively provided with markings such as characters and symbols by laser irradiation. Formation of characters, symbols, and the like by laser irradiation on the first resin layer 26 and the second resin layer 30 is realized by a laser marking device 40 as schematically shown in FIG. The laser marking device 40 includes a light source 44 that projects a laser beam 42, a shaper 46 that shapes the waveform of the laser beam 42, a reflecting mirror 48 that reflects the laser beam 42 in a predetermined direction, and a focal position of the laser beam 42. And a condensing lens 50 for condensing the light.

  That is, first, the laser beam 42 is projected from the light source 44, and the waveform of the laser beam 42 is adjusted by passing through the shaper 46 disposed on the optical path. Further, the laser beam 42 that has passed through the shaper 46 is projected onto a reflecting mirror 48 disposed on the optical path at an angle of 45 degrees with respect to the optical axis of the laser beam 42 and directed in a substantially perpendicular direction. Reflected. Then, the laser light 42 reflected by the reflecting mirror 48 passes through the condensing lens 50 disposed on the optical path, and is condensed at the focal position of the condensing lens 50. An object to be marked, that is, one of the first resin layer 26 and the second resin layer 30 is disposed at the focal position of the condenser lens 50. As shown in FIG. A colored portion 52 is formed at a predetermined position of the resin layers 26 and 30 by the laser beam 42 condensed at 50 so as to be discolored so as to have a different color from other portions. As a principle of color development by irradiation with such laser light 42, for example, multiphoton absorption that induces electronic excitation occurs in a condensing portion of the laser light 42 (focal position of the condensing lens 50), thereby causing a photochemical reaction or It is inferred that it is formed by structural changes and further defects, and optical properties (refractive index) being changed.

  An information recording layer in which predetermined characters and symbols are marked on the first resin layer 26 and the second resin layer 30 is formed by one or a combination of the colored portions 52. Thereby, the display part in this embodiment is comprised by the 1st resin layer 26 and the 2nd resin layer 30. FIG. According to such marking by laser irradiation, marking of characters and symbols can be realized without causing irregularities (damage) on the surfaces of the first resin layer 26 and the second resin layer 30. Therefore, it is possible to effectively prevent the visibility of the display information from being lowered due to discoloration or peeling of the marking. In addition, since the marking is performed by changing the optical properties of the resin layers 26 and 30 by the irradiation of the laser beam 42, contamination of the contact lens container 10 itself or the laser marking device 40 due to scattering of dyes or the like is advantageously avoided. I can do it.

The laser beam 42 used in the laser marking as described above is not particularly limited, but an ultrashort pulse laser having a pulse width in a femtosecond range (about 10 ⁻¹⁵ to 10 ⁻¹³ seconds) is particularly used. Preferably employed. By adopting such a pulse laser having a pulse width in the femtosecond region, the pulse width is in the microsecond region (about 10 ⁻⁶ to 10 ⁻⁴ second) or in the nanosecond region (10 ⁻⁹ to 10 ⁻⁷ second). Compared with the case of using a laser of about a degree), processing that is hardly affected by heat can be made possible. Therefore, desired processing can be realized with higher accuracy and better visibility without causing damage such as melting on the surfaces of the first and second resin layers 26 and 30. Moreover, the colored portion 52 formed by such a femtosecond laser can be made extremely small in size as compared with a colored portion formed by a laser whose pulse width is in the microsecond range or nanosecond range. Thus, the display information can be formed as an aggregate of more colored portions 52. Therefore, information can be clearly displayed with high resolution on the thin-sheet-like first resin layer 26 and second resin layer 30, and excellent visibility can be realized. Accordingly, the type of the laser beam 42 is not particularly limited, but a laser capable of realizing such a femtosecond pulse width is desirable. For example, a variable wavelength solid-state laser represented by a titanium sapphire laser is preferable. In various known lasers such as those described above, a laser having a pulse width of 1 femtosecond to 500 femtosecond is suitably employed.

  Further, when a pulse laser having a pulse width in the femtosecond region is employed as the laser light 42, the pulse energy, the number of pulses, and the like depend on the oscillation wavelength of the light source 44 and the laser light 42, the object to be processed (the first resin layer 26). The second resin layer 30) is appropriately selected according to the material of the second resin layer 30), the size of the colored portion 52 to be formed, and the like, and is not limited at all. For example, when a titanium / sapphire laser is employed, it is desirable that the pulse energy is 0.01 μJ / pulse to 0.1 μJ / pulse, and the number of pulses is 1 pulse to 1000 pulses. desirable.

  Further, the oscillation wavelength of the laser light 42 is not particularly limited, but it is desirable to use a wavelength in the visible light region. The transmission wavelength of the laser beam 42 is appropriately set according to the light source 44 employed. For example, in the case of a titanium / sapphire laser, wavelengths of about 800 nm and 400 nm of its fundamental wave or harmonic wave are preferably used. Adopted.

  In the present embodiment, the first resin layer 26 includes, for example, a contact lens type (trade name), a vertex curvature radius (BC), a diameter (DIA), and a lens power (P ), Material used, expiration date, serial number, manufacturing date, history of processing equipment used for manufacturing, name of person in charge of manufacturing, lot number of container material, deadline for delivery, date of ordering, supplier, contact lens, and storage area 24 Standard information such as the type of storage solution to be sealed and store information (telephone number, e-mail address, website address, address, business hours, greetings, etc.) is displayed as disclosure information. On the other hand, the second resin layer 30 includes, for example, the wearer's name, age, date of birth, sex, contact lens prescription date, prescription expiration date, wearer's tear analysis result, wearer's tear Personal information such as contact lens care product names that match or do not match is displayed as confidential information.

  In the present embodiment, as shown in FIGS. 1 and 2, most of the display information is provided as character information, and some information is a two-dimensional barcode called VERICODE (registered trademark). It is displayed as. However, these pieces of information do not necessarily have to be displayed including character information. For example, all the information may be displayed by being symbolized or encrypted like a barcode. According to this, it is possible to make it impossible to read information by anyone other than the related parties, and it is possible to effectively prevent leakage of information to be concealed, such as personal information. As such a barcode, various known barcodes can be employed in addition to VERICODE. Specifically, for example, a one-dimensional bar code such as CODE128, a stack type two-dimensional code such as PDF417, a matrix type two-dimensional code such as QR code (registered trademark) or DataMatrix, and the like can be given. Furthermore, when forming a plurality of colored portions 52 in one resin layer, for example, by finely adjusting the condensing position of the laser light 42, an information recording layer constituted by the plurality of colored portions 52 is A plurality of layers may be formed at different positions in the thickness direction of the resin layer, or a part or all of the plurality of information recording layers may be formed to overlap each other. As a result, not only one-dimensional barcodes and two-dimensional barcodes but also three-dimensional barcodes can be adopted as display information, and more information can be effectively displayed in a limited display area. I can do it. It is also possible to form a three-dimensional code by forming a two-dimensional code on each of a plurality of laminated resin layers and superimposing these two-dimensional codes.

  The first resin layer 26 and the second resin layer 30 in which each piece of information is recorded as characters, symbols, and the like are arranged with the first resin layer 26 on the surface layer of the standard information display label 20 and the second resin layer 26. The layer 30 is disposed on the surface layer of the personal information display label 22. Thus, the standard information is displayed on the upper surface of the standard information display label 20 and the personal information is displayed on the upper surface of the personal information display label 22. In the present embodiment, since different information is displayed on the standard information display label 20 and the personal information display label 22, it is possible to display more information. However, the information displayed on these multiple labels does not necessarily have to be different from each other. By displaying a single piece of information on multiple layers, both contact lens prescribers and contact lens wearers It becomes possible to share information with. The information displayed on the standard information display label 20 and the personal information display label 22 is not limited in any way by specific examples of information marked on the first resin layer 26 and the second resin layer 30 described above. In addition, it can be arbitrarily selected and displayed at the discretion of those skilled in the art.

  Then, the standard information display label 20 is superposed on the surface (upper surface) of the personal information display label 22 and is detachably bonded, whereby the package sheet 14 in the present embodiment is configured. Further, the personal information display label 22 is overlaid through the adhesive layer 23 so as to cover the opening of the housing recess 16 formed in the package body 12, so that the package sheet 14 is peelably bonded to the package body 12. Has been. The standard information display label 20 and the personal information display label 22 have substantially the same shape in plan view, and the labels 20 and 22 have substantially the same planar shape as the upper end surface of the package body 12. The upper end surface of the package body 12 is covered with the personal information display label 22 over the entire surface, and the upper end surface of the personal information display label 22 is covered with the standard information display label 20 over the entire surface. In the present embodiment, the adhesive layer 23 and the adhesive layer 28 are each an adhesive layer that can be attached again after being peeled off, and the standard information display label 20 and the personal information display label 22 are displayed on the surface. And an adhesive sheet having an adhesive surface on the back surface.

  Furthermore, in this embodiment, the adhesive layer 28 is opaque, and the standard information display label 20 is displayed on the personal information display label 22 by being bonded to the personal information display label 22 via the adhesive layer 28. The concealment information (in this embodiment, personal information) is not visible under the state where the standard information display label 20 is attached, and the standard information display label 20 is peeled off from the surface of the personal information display label 22. Is made visible.

  Accordingly, for example, when the contact lens is transported or stocked, the contact lens accommodated in the contact lens container 10 can be easily determined by visual recognition based on the standard information displayed on the standard information display label 20. The personal information display label 22 on which information to be concealed such as personal information of the wearer is displayed is not directly visible because the standard information display label 20 having the adhesive layer 28 is superimposed. It is possible to protect personal information. Further, for example, when the contact lens is delivered from the doctor to the patient (contact lens wearer), the doctor provides the patient with the contact lens after the standard information display label 20 is peeled off from the surface of the personal information display label 22. Thus, the doctor or patient can confirm the personal information displayed on the personal information display label 22 and confirm that the delivered contact lens is for the patient. As is clear from the above description, the information recording layer in the present embodiment is constituted by the information recording layer formed in the standard information display label 20 and the information formed in the personal information display label 22 The concealment information recording layer in this embodiment is formed by the recording layer.

  Furthermore, since the adhesive layer 28 can be re-applied, for example, a doctor can attach and store the peeled standard information display label 20 on the patient's medical record or the like, and the contact prescribed to the patient. The doctor can manage the lens information. According to this, it becomes possible to ensure the traceability of the contact lens prescribed to the patient by the doctor. Therefore, when any problem occurs in the contact lens provided to the patient, the information is immediately provided to the contact lens manufacturer based on the standard information, so that the problem can be dealt with accurately. Therefore, it is possible to prevent the problem from expanding, and to effectively improve based on the problem that has occurred. Although it is possible to secure traceability by transferring the information displayed on the standard information display label 20 to a medical record or the like, the standard information display label 20 can be reapplied as shown in the present embodiment. By doing this, it is possible to save the doctor from having to transfer the standard information to the medical chart and the like, and it is also possible to prevent errors such as errors.

  Furthermore, since the adhesive layer 23 can be re-applied, the patient can manage the information of the contact lenses used by the patient by storing the personal information display label 22 on a management sheet or the like. I can do it. This makes it possible to provide information to doctors and the like more smoothly and reliably when a problem occurs, and to quickly solve the problem.

  Moreover, in the management after the information display labels 20 and 22 are peeled off, the marking for displaying the information uses the colored portion 52 formed inside the first resin layer 26 and the second resin layer 30. Thus, maintenance and management of information can be effectively realized without lowering visibility. For the management of the peeled standard information display label 20, for example, a contact lens store or the like prepares a dedicated user management sheet that secures a space for attaching the information display labels 20 and 22 instead of a medical record. You may manage by sticking there.

  Next, FIG. 6 shows a contact lens container 54 as a second embodiment of the present invention. In the present embodiment, members and parts that are substantially the same as those in the first embodiment are denoted by the same reference numerals in the drawing, and description thereof is omitted.

  As shown in FIG. 6, the contact lens container 54 according to the second embodiment is configured by attaching a package sheet 58 to the upper surface of the package body 56. The package body 56 as a whole is formed of substantially the same shape and material as the package body 12 shown in the first embodiment, and is made translucent or transparent. The package sheet 58 is formed by superposing the resin layer 60, the base sheet 32, and the transparent film 34, and bonding and integrating them with each other through the adhesive layers 36 and 38. The resin layer 60 of the package sheet 58 is a display unit on which an information recording layer is formed by the laser marking device 40 as shown in the first embodiment. Note that the standard information of the contact lens displayed on the standard information display label 20 in the first embodiment is displayed on the package sheet 58 in the present embodiment.

  Here, in the present embodiment, the laser marking device 40 irradiates the flange 18 that extends outward in the horizontal direction from the peripheral edge of the opening of the housing recess 16 formed in the package body 56, A colored portion 52 is formed. By the colored portion 52 formed on the flange portion 18, personal information of the contact lens wearer to be concealed by the flange portion 18 is displayed. Further, the flange portion 18 is formed so as to spread substantially horizontally, and the upper surface of the flange portion 18 that is a reading surface of display information is a display portion constituted by a flat surface. The personal information displayed on the package body 56 in this embodiment is substantially the same as the information displayed on the personal information display label 22 in the first embodiment. From the information, the package sheet 58 is overlaid on the flange portion 18 where the colored portion 52 is formed, and is attached to the flange portion 18 so as to be peelable by the adhesive layer 23.

  Then, the package sheet 58 having the base sheet 32 formed of a colored and opaque metal foil is superposed on and adhered to the flange portion 18 of the package body 56, thereby being displayed on the surface of the package sheet 58. While the contact lens standard information is visible directly from the outside, concealment information such as personal information of the contact lens wearer displayed on the flange portion 18 of the package body 56 is not visible from the outside. ing. Thereby, the discrimination of the contact lens by visual recognition and the protection of personal information can be realized together. Further, by peeling the package sheet 58 from the package body 56, the personal information of the contact lens wearer displayed on the package body 56 becomes visible. Thereby, the wearer can confirm whether or not the contact lens is prescribed for himself before wearing. As described above, the personal information displayed on the package body 56 is not visible from the outside when the package sheet 58 is attached to the package body 56. That is, the marking formed on the flange portion 18 of the package main body 56 is formed by, for example, overlaying and bonding an opaque bottom plate to the flange portion 18 with the marking from below. Even when viewed from the bottom side (the lower side in FIG. 6), it is not visually recognized. As is apparent from the above description, the display portion in the present embodiment is formed by the flange portion 18 and the package sheet 58 of the package body 56. In the present embodiment, a concealed information recording layer that is not directly visible from the outside is formed by the information recording layer formed on the flange portion 18 and information formed on the package sheet 58 is also formed. A manifest information recording layer that is easily visible from the outside by the recording layer is formed.

  As mentioned above, although one Embodiment of this invention has been described, this is an illustration to the last, Comprising: This invention is not limited at all by the specific description in this Embodiment.

  For example, in the first and second embodiments, characters and symbols are formed on at least one layer of the package sheets 14 and 58 to display information. However, the information is not necessarily displayed on the package sheets 14 and 58. Information need not be displayed, and information may be displayed only on the package bodies 12 and 56.

  In the first embodiment, information is displayed on the two resin layers 26 and 30 constituting the package sheet 14, respectively. In the second embodiment, the package body 56 and the package sheet are displayed. Information is displayed on two layers 58. However, any number of display portions for displaying information may be formed. Specifically, for example, information is displayed on a plurality of layers of the package sheet and information is also displayed on the package body, and a plurality of layers of three or more layers may be used as the display unit.

  Further, the shape of the package main bodies 12 and 56 to which the package sheets 14 and 58 in the present invention are attached is not limited at all, and any shape can be adopted. Specifically, for example, a so-called blister pack-shaped container as disclosed in JP-A-2002-335950 may be used, or a cylindrical container as disclosed in JP-A-2003-9845 may be used. . In the first and second embodiments, the package sheets 14 and 58 are formed to have substantially the same size as the upper surfaces of the package main bodies 12 and 56, but the upper surfaces of the package main bodies 12 and 56 are covered. The size is not necessarily required, and the opening may be formed in a smaller area than the surfaces of the package bodies 12 and 56 as long as the opening of the accommodation recess 16 can be covered fluid-tightly.

  Further, the adhesive layer 28 formed on the back surface, which is the peeling surface of the standard information display label 20, and the adhesive layer 23 formed between the personal information display label 20 and the package body 12 can be pasted again. It may or may not be possible. That is, when pasting is possible again, as described in the first embodiment, it is possible to advantageously secure traceability of the contact lens by pasting it on a medical chart or a management sheet. . On the other hand, when the pasting is impossible, once the standard information display label 20 or the personal information display label 22 is peeled off, it cannot be restored and the fact of peeling is left as evidence. I can do it. This makes it possible to easily and reliably grasp the leakage of confidential information to the outside.

  Further, the first resin layer 26, the second resin layer 30, and the package body 56 in which the colored portion 52 is formed are colored in a color that is clearly different from the colored portion 52 at least in the vicinity of the location where the colored portion 52 is formed. It may be a transparent colored layer. According to this, it becomes possible to improve the visibility of characters, symbols, pictures, codes, and the like displayed on the display unit by comparing the colors of the colored unit 52 with the resin layers 26 and 30 and the package body 56. . Furthermore, by providing portions having a characteristic shape such as irregularities on the top and bottom of the marking portion (display portion), it is possible to pay attention to the display information and improve the visibility.

  In the first embodiment, the standard information display label 20 and the personal information display label 22 having the resin layers 26 and 30 on which predetermined characters and symbols are previously written by the laser marking device 40 are overlapped with each other. In this example, the upper and lower surfaces of the package main body 12 are overlapped and bonded. However, the standard information display label 20 and the personal information display label 22 that are preliminarily overlapped with each other are bonded on the package main body 12. Adhesion is performed so as to cover the end faces, and then the laser marking device 40 adjusts the focal position of the resin layers 26 and 30 of the information display labels 20 and 22 and irradiates the laser light 42 to perform predetermined marking. Is possible.

  Furthermore, in the first embodiment, as an effect by managing the peeled standard information display label 20 on a medical record, a management sheet or the like, it is possible to promptly respond when a problem occurs or the like However, a contact lens store or a contact lens manufacturer can manage the standard information display label 20 to easily manage the contact lens sales information.

Moreover, as the laser beam 42 used for marking, an ultrashort pulse laser having a pulse width in a femtosecond region (about 10 ⁻¹⁵ to 10 ⁻¹³ seconds) is preferably employed, but the pulse width is less than femtoseconds. It is possible to obtain the same effect as the first and second embodiments also by irradiating the laser beam of the pulse laser that is the region to the display unit, and it is more advantageous to improve the visibility. It can be realized.

  In addition, although not enumerated one by one, the present invention can be carried out in a mode to which various changes, modifications, improvements, and the like are added based on the knowledge of those skilled in the art. It goes without saying that all are included in the scope of the present invention without departing from the spirit of the present invention.

The perspective view which shows the container for contact lenses as 1st embodiment of this invention. The top view of the container for contact lenses. It is the longitudinal cross-sectional view of the container for contact lenses, and is the figure which expanded the principal part. Schematic explanatory drawing which shows an example of the laser marking apparatus used for marking of the container for contact lenses. The longitudinal cross-sectional explanatory drawing which expands and shows the marking part of the container for contact lenses. It is a longitudinal cross-sectional view which shows the container for contact lenses as 2nd embodiment of this invention, Comprising: The principal part enlarged view corresponding to FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Contact lens container, 12 Package body, 14 Package label, 16 Housing recess, 18 Flange part, 20 Standard information display part, 22 Personal information display part, 23 Adhesive layer, 24 Housing area, 26 1st resin layer, 28 Adhesive layer, 30
Second resin layer, 32 base sheet, 42 laser light, 52 colored portion

Claims (10)

An accommodation region of a sealed structure for accommodating a contact lens was formed by overlapping a lid sheet on a container body made of a synthetic resin material having an accommodation recess and covering the opening of the accommodation recess fluid-tightly. In contact lens containers,
An information recording layer in which a display unit made of a light-transmitting synthetic resin material is provided on at least one of the container main body and the lid sheet, and information is recorded in the display unit using discoloration due to laser light irradiation A container for contact lenses, characterized in that is formed.   The contact lens container according to claim 1, wherein the display unit is formed with a flat surface shape.   The contact lens container according to claim 1, wherein the lid sheet has a laminated structure of a metal foil and a resin layer, and the display portion is formed by the resin layer.   4. The display portion is a colored transparent colored layer, and information is displayed on the information recording layer by being changed to a color different from the color of the colored layer by irradiation with the laser beam. The contact lens container according to any one of the above.   The display unit is formed on a portion of the container body that is the overlapping surface of the lid sheet, the lid sheet is opaque, and the information recording layer in the display unit is not visible by the lid sheet The contact lens container according to any one of claims 1 to 4, wherein the container is a concealment information recording layer covered with a cover.   The display unit is formed on the lid sheet, and the manifestation information recording layer that is directly visible from the outside is formed by the information recording layer in the display unit. The container for contact lenses as described.   The lid sheet is configured to include a plurality of adhesive sheets that are detachably attached to each other, and at least one of the adhesive sheets includes the information recording layer to another adhesive sheet. The contact lens according to any one of claims 1 to 6, wherein the contact lens is formed as a concealment information recording layer that can be seen from the sticking surface of the cover sheet and cannot be seen from the surface of the lid sheet in the sticking state. Container.   The lid sheet is configured to include a plurality of adhesive sheets that are detachably attached to each other, and at least one of the adhesive sheets has a display portion on one of the front and back surfaces. In addition, the contact lens container according to any one of claims 1 to 7, which has a pressure-sensitive adhesive surface that can be attached again on the other of the front surface and the back surface. At least one of the container main body and the lid sheet, the display unit having the manifest information recording layer as the information recording layer that is directly visible from the outside, and the surface is covered with a covering sheet, and cannot be directly seen from the outside And the display unit having a concealed information recording layer as the information recording layer that can be visually recognized by peeling the covering sheet,
The information recorded in the information recording layer includes standard information that is information necessary for identifying the contact lens, and personal information that is information relating to the individual wearer of the contact lens,
The contact lens container according to any one of claims 1 to 8, wherein the standard information is recorded on the manifest information recording layer, and the personal information is recorded on the concealment information recording layer. A method for manufacturing a contact lens container according to any one of claims 1 to 9,
Forming the information recording layer on which information is recorded by irradiating a laser beam of a pulse laser having a pulse width in a femtosecond region to the display unit and changing the color of the inside of the display unit by the laser beam. A method for producing a container for contact lenses.

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