KR20030027930A - Three dimensional hologram manufacturing method having a high curving rate - Google Patents

Abstract

PURPOSE: A preparation method of a 3-dimensional hologram having the high curvature is provided to have the merits that the various designs apply and the thickness of hologram are selected freely. CONSTITUTION: The preparation method of the 3-dimensional hologram having the high curvature includes a step of positioning a nickel hologram plate on the upper side of a clear coated clear film(150) and heating/pressing using a curved surface heat press(200) so as to receive the hologram; a step of nickel plating by immersing the 3-dimensional clear hologram plastic film(150) formed by the curved surface heat press(200) in a nickel electroplating vessel; a step of separating the nickel plated hologram nickel plate and the clear sheet film; a step of resting the separated 3-dimensional hologram nickel plate on a 3-dimensional die frame; and a step of positioning the clear coated clear plastic film on the upper side of the 3-dimensional hologram nickel plate and heating/pressing using the heat press(200) so as to receive the hologram in the 3-dimensional hologram die frame.

Description

THREE DIMENSIONAL HOLOGRAM MANUFACTURING METHOD HAVING A HIGH CURVING RATE

The present invention relates to a method for manufacturing a three-dimensional hologram having a high curvature, and more specifically to form a curved three-dimensional nickel hologram mold plate and seated on the mold, and the transparent film on the upper surface of the nickel hologram on the plastic film The present invention relates to a three-dimensional hologram manufacturing method having a high curvature that has a high curvature and various designs can be applied by heating / pressing using a heat press in a positioned state, and can freely adopt the thickness of the hologram.

As is well known, holography is a unique image recording process that distinguishes it from other image recording processes, for example, the phase and amplitude of a coherent wavefront modulated by interaction with a three-dimensional object are recorded on the recording medium. The phase and amplitude stored in this way can be reproduced to provide a three-dimensional image of the original three-dimensional object.

In general, in the manufacture of holograms, the object on which the image is to be recorded is irradiated with a first component which is divided from the coherent radiation source. The amount of radiation reflected from an object is directed to a sensitized recording medium in a suitable manner, such as, for example, photographic plates or photopolymerization media. As such, the coherent radiation beam interrupted by the object is commonly referred to as the object beam. At the same time, the second component divided from the coherent radiation source is directed to the recording medium bypassing the object. Such coherent beams are commonly referred to as reference beams. The resulting interference pattern derived by the interaction between the reference beam and the object beam simultaneously colliding on the recording medium is potentially recorded in the recording medium. When the exposed recording medium is processed (e.g., for development of latent recordings) and then properly irradiated and observed at an appropriate angle (i.e., an angle generally coinciding with the angle of incidence of the reference beam), this dose is determined by the interference pattern (hologram). Interact with to reproduce the wavefront that was originally reflected from the object and reached the recording medium. Accordingly, it is possible to create a reproduced image using holography technology.

Korean hologram related patents are pending for Korean Patent Application No. 10-2002-0028028, "fabric with hologram pattern laminated and its manufacturing method", and "heat transfer film formed with hologram pattern and its manufacturing method". The above invention is merely a technique of attaching a hologram film on a plane by using a roller or stamping on the plastic film.

In addition, with the development of holographic attachment techniques, holographic techniques have been used for a variety of applications. Accordingly, the market interest in sunglasses using reflective display holograms is also increasing. Sunglasses using reflective display holograms include sunglasses using embossed reflective display holograms, sunglasses using volume phase reflection holograms, and the like.

Referring to US Pat. No. 6,020,983, a method is described for making eyelid articles having volume phase reflecting holograms. In this method, a recording medium is constructed by depositing a photoactive composition that is active for coherent radiation onto an optically transparent flexible web, which recording medium is in hologram form by the properties of the photoactive composition that is active for coherent radiation. Can be recorded. On one side of the recording medium a reference beam impinges through the optically transparent web and on the opposite side of the one side to produce a volume phase reflective hologram recording of a predetermined three-dimensional object on the optically transparent flexible web. As the object beam collides on the other side, the recording medium is exposed to the coherent irradiation beam. An adhesive layer is deposited on the volume phase reflecting hologram layer supported by the web on the side opposite to the carrier web. The three-dimensional reflective hologram supported by the web is adhered to a rigid, flat, light-transmissive plastic substrate that includes a colorant, so that the recording medium in the form of the web, the hologram, the adhesive layer, and A flat holographic laminate is formed in which the light transmissive plastic substrates are sequentially stacked. A flat alternative lens blank is prepared by cutting and removing a single blank from this flat holographic stack. By heating and softening the removed alternative lens blank, an alternative lens curved in a single axial direction is formed, and the sunglasses are completed by installing a coupling means in the alternative lens that allows the user to wear such an alternative lens. . Therefore, U.S. Patent No. 6,020,983 is characterized by the use of a volume phase reflection hologram, instead of using the embossed reflective display hologram as described above, and a light transmissive plastic in the volume phase reflection hologram. It takes a structure to which the substrate is bonded.

However, the above-described technique is a method of attaching a hologram film to an upper surface of a curved mold release layer by pressing a hot press mold having the same side shape as the shape of the curved mold release layer and mounting the hologram film on the upper surface of the curved mold release layer. This method has a problem that the hologram film to be attached is only thin. Therefore, a thicker hologram film having a higher hologram three-dimensionality or a higher reflectance becomes impossible to attach, and thus there is a problem in that hologram films of various designs cannot be attached.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described state of the art, and forms a curved three-dimensional nickel hologram mold plate, seats it on a mold, and heats it in a state where it is placed on the upper surface of the nickel hologram on a plastic film subjected to transparent deposition. It is an object of the present invention to provide a three-dimensional hologram manufacturing method having a high curvature that has a high curvature and various designs can be applied by heating / pressing a press, so that the thickness of the hologram can be freely adopted.

1A is a cross-sectional view showing a mastering plate for forming a hologram pattern according to a first embodiment of the present invention;

1B is a diagram showing an electroplating state of the hologram pattern according to the first embodiment of the present invention;

1C is a cross-sectional view for describing a process of forming a hologram-deposited plastic film according to a first embodiment of the present invention;

1D is a cross-sectional view illustrating a process of three-dimensionally forming a transparent holographic plastic film according to a first embodiment of the present invention;

1E is a cross-sectional view for explaining a process of nickel electroplating a 3D molded transparent holographic plastic film according to a first embodiment of the present invention;

1F is a cross-sectional view illustrating a process of depositing a transparent plastic film on an upper surface of a three-dimensionally formed transparent holographic nickel plate according to a first embodiment of the present invention;

2 is a cross-sectional view showing a basic pattern to which a three-dimensional hologram manufacturing method having a high curvature according to a second embodiment of the present invention is applied;

3, 4, 5, 6, and 7 are cross-sectional views showing an application pattern to which a three-dimensional hologram manufacturing method having a high curvature according to the third, fourth, fifth, sixth, and seventh embodiments of the present invention is applied;

8 is a flowchart illustrating a process of attaching a curved hologram film having a high curvature according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

10: holography, 20: photoresist,

30: glass plate, 40: electroplating bath,

70: nickel plate, 80: holographic nickel plate,

130: three-dimensional holographic plastic film, 140: three-dimensional holographic nickel plate,

150: Holographic transparent plastic film.

In order to achieve the above object, according to a preferred embodiment of the present invention, in the method of depositing a hologram on a three-dimensional curved surface, the nickel hologram plate is placed on the upper surface of the transparent coated film to receive the hologram, Heating / pressurizing using a curved heat press; Performing nickel plating by immersing the three-dimensional transparent hologram plastic film formed by curved heat press in a nickel electroplating bath; Separating the nickel plated holographic nickel plate and the transparent sheet film; Seating the separated three-dimensional holographic nickel plate in a three-dimensional mold frame; High curvature, characterized in that the transparent plastic film coated with a transparent coating to accommodate the hologram in the three-dimensional hologram die frame on the upper surface of the three-dimensional holographic nickel plate, and heat / press using a heat press Provided is a three-dimensional hologram manufacturing method.

Preferably, the three-dimensional hologram manufacturing method having a high curvature, characterized in that further comprising forming a basic pattern layer by sequentially laminating a transparent plastic film layer, a transparent deposition layer for receiving a hologram, a transparent hologram layer Is provided.

Preferably, an aluminum vacuum deposition layer may be sequentially stacked on the upper surface of the basic pattern layer (transparent plastic film layer, transparent deposition layer for accommodating hologram, transparent hologram layer) to form a first application pattern layer. A three-dimensional hologram manufacturing method having a high curvature is provided.

Preferably, the transparent plastic film layer, a transparent deposition layer for accommodating a hologram, a transparent hologram layer are sequentially stacked, and a printed layer is further included between the transparent plastic film layer and the transparent deposition layer to form a second application pattern layer. Provided is a three-dimensional hologram manufacturing method having a high curvature, which can be formed.

Preferably, a three-dimensional hologram manufacturing method having a high curvature, characterized in that the aluminum vacuum deposition layer is sequentially stacked on the upper surface of the second application pattern layer to form a third application pattern layer.

Preferably, the high curvature, characterized in that the printing layer is sequentially deposited on the upper surface of the basic pattern layer (transparent plastic film layer, transparent deposition layer for receiving hologram, transparent hologram layer) to form a fourth application pattern layer A method of manufacturing a three-dimensional hologram having a rate is provided.

Preferably, a three-dimensional hologram manufacturing method having a high curvature, characterized in that the aluminum vacuum deposition layer is sequentially stacked on the upper surface of the fourth application pattern layer to form a fifth application pattern layer.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail with reference to drawings.

1A is a cross-sectional view illustrating a mastering plate for forming a hologram pattern according to a first embodiment of the present invention, and FIG. 1B is a diagram illustrating an electroplating state of the hologram pattern according to the first embodiment of the present invention. 1C is a cross-sectional view illustrating a process of forming a hologram-deposited plastic film according to a first embodiment of the present invention, and FIG. 1D is a process of three-dimensionally forming a transparent holographic plastic film according to a first embodiment of the present invention. 1E is a cross-sectional view for describing a process of nickel electroplating a 3D molded transparent holographic plastic film according to a first embodiment of the present invention, and FIG. 1F is a cross-sectional view for explaining a nickel electroplating process according to the first embodiment of the present invention. It is sectional drawing for demonstrating the process of depositing a transparent plastic film on the upper surface of the 3D molded transparent holographic nickel plate.

First, the three-dimensional hologram manufacturing method having a high curvature according to the present invention is to produce a nickel hologram plate through the electroplating of the electroplating mastering the holography deposited on the photoresist glass plate, transparent The plastic film is heated / pressurized and attached to the lower surface thereof, and primarily forms a three-dimensional curved hologram. Then, the molded three-dimensional curved hologram is immersed in an electroplating bath and nickel plated, and then the nickel hologram and the plastic film are separated.

Then, the nickel hologram is mounted on the curved mold, and the transparent coated plastic film is placed on the upper surface thereof, and is pressed / heated to finally form the three-dimensional hologram.

More specifically, in the present invention, as shown in FIG. 1A, the glass plate 30 is treated with a photoresist 20, and then subjected to holographic 10 treatment by irradiating a collimated laser beam to produce a mastering plate 11. (First step: ST-1). The structure of the mastering plate 11 has a structure in which the glass plate 30, the photoresist 20, and the holography 10 are laminated, respectively. In this case, the holographic photoresist is exposed and developed using a holography technique. It is a material whose depth is proportional to the intensity of the incident radiation.

1B, the mastering plate 11 is immersed in an electroplating bath 40, a cathode 60 is applied to the mastering plate 11, and an anode 50 is applied to the master plate 11. Electroplating is performed by applying a nickel plate 70. At this time, the outer surface of the mastering plate 11 is subjected to silver pretreatment before electroplating so that the current carrying rate is increased. In the nickel electroplating process, a hologram nickel plate 80 in which nickel is transferred to the mastering plate 11 is formed (second step: ST-2).

Then, as shown in FIG. 1C, the mastering plate 11 and the holographic nickel plate 80 are separated, attached to the top of the heat press 200, and then a transparent coated transparent plastic film for accommodating the hologram ( 90) is seated on the lower side and then heated / pressurized to form (third step: ST-3).

As shown in FIG. 1D, the transparent holographic plastic film 12 is mounted on the three-dimensional mold, and then the three-dimensional transparent holographic plastic film 130 is formed using the heat press 200. At this time, the transparent hologram plastic film 12 is rigidly mastered to continuously deposit an interference pattern in the plastic softened by heat, pressure, a solvent, or a combination thereof (fourth step: ST-4).

Next, as shown in FIG. 1E, the 3D transparent hologram plastic film 130 is coated with a highly conductive metal such as silver, and then immersed again in the nickel electroplating bath 40 and the negative electrode 60 is applied thereto. Nickel plating on the transparent holographic plastic film 130, and then separating and forming a three-dimensional holographic nickel plate 140 (sixth step ST-). 6).

1F, the 3D holographic nickel plate 140 is seated on the 3D mold lower plate 120, and the transparent coated transparent plastic film 150 for accommodating the hologram is mounted on the upper surface thereof. The three-dimensional curved hologram is completed by heating / pressing with a hot press 200 to form a three-dimensional curved hologram (ST-7).

2 is a cross-sectional view showing a basic pattern to which a three-dimensional hologram manufacturing method having a high curvature according to a second embodiment of the present invention is applied, and FIGS. 3, 4, 5, 6, and 7 are third and fourth embodiments of the present invention. , 5, 6, 7 is a cross-sectional view showing an application pattern to which the three-dimensional hologram manufacturing method having a high curvature according to the embodiment is applied.

2 to 7 illustrate a basic pattern to which a three-dimensional hologram manufacturing method having a high curvature according to a second embodiment of the present invention is applied, and an application pattern derivable from the basic pattern. The basic pattern has a transparent plastic film (1), a transparent deposition layer (2) for accommodating holograms, and a basic pattern layer (4) of a structure in which a transparent hologram layer (3) is sequentially stacked.

In addition, the primary application pattern layer 6 according to the third embodiment is formed by laminating an aluminum vacuum deposition layer 5 on the upper surface of the basic pattern layer 4, and the secondary application pattern layer according to the fourth embodiment ( 8) the transparent plastic film (1), a transparent deposition layer (2) for accommodating the hologram, a transparent hologram layer (3) is laminated, the transparent deposition layer for accommodating the transparent plastic film (1) and the hologram ( The printing layer 7 is interposed between 2).

In addition, the third application pattern layer 9 according to the fifth embodiment is formed by laminating an aluminum vacuum deposition layer 5 on the upper surface of the second application pattern layer 8, and the fourth application pattern layer according to the sixth embodiment. 12 is formed by laminating a print layer 7 on the upper surface of the basic pattern layer 4, the fifth application pattern layer 13 according to the seventh embodiment is on the upper surface of the fourth basic pattern layer 12 The aluminum vacuum deposition layer 5 is laminated.

On the other hand, the three-dimensional hologram manufacturing method having a high curvature according to an embodiment of the present invention is not limited only to the above-described embodiment is possible various modifications within the scope not departing from the technical gist.

As described above, the three-dimensional hologram manufacturing method having a high curvature according to the present invention enables the design molding of various forms using the hologram by directly depositing the hologram on the curved surface of the three-dimensional curved object release object, the hologram thickness Regardless, there is an effect that a three-dimensional hologram can be manufactured to have a high curvature.

Claims (7)

In the method of depositing a hologram on a three-dimensional curved surface, Placing a nickel hologram plate on the top surface of the transparent coated transparent film to receive the hologram, and heating / pressurizing using a curved heat press; Performing nickel plating by immersing the three-dimensional transparent hologram plastic film formed by curved heat press in a nickel electroplating bath; Separating the nickel plated holographic nickel plate and the transparent sheet film; Seating the separated three-dimensional holographic nickel plate in a three-dimensional mold frame; High curvature, characterized in that the transparent plastic film coated with a transparent coating to accommodate the hologram in the three-dimensional hologram die frame on the upper surface of the three-dimensional holographic nickel plate, and heat / press using a heat press 3D hologram manufacturing method having a. The three-dimensional hologram of claim 1, further comprising forming a basic pattern layer by sequentially laminating the transparent plastic film layer, the transparent deposition layer for accommodating the hologram, and the transparent hologram layer. Manufacturing method. The aluminum vacuum deposition layer is sequentially stacked on the upper surface of the basic pattern layer (transparent plastic film layer, transparent deposition layer for accommodating hologram, transparent hologram layer) to form a first application pattern layer. 3D hologram manufacturing method having a high curvature, characterized in that there is. The method of claim 2, wherein the transparent plastic film layer, the transparent deposition layer for accommodating the hologram, and the transparent hologram layer are sequentially stacked, and a printing layer is further included between the transparent plastic film layer and the transparent deposition layer. A three-dimensional hologram manufacturing method having a high curvature, characterized in that the pattern layer can be formed. The method of claim 4, wherein an aluminum vacuum deposition layer is sequentially stacked on the upper surface of the second application pattern layer to form a third application pattern layer. The method according to claim 2, wherein a printing layer is sequentially deposited on the upper surface of the basic pattern layer (transparent plastic film layer, transparent deposition layer for accommodating hologram, transparent hologram layer) to form a fourth application pattern layer. 3D hologram manufacturing method having a high curvature. The method of claim 6, wherein an aluminum vacuum deposition layer is sequentially stacked on the upper surface of the fourth application pattern layer to form a fifth application pattern layer.