3D card

The card structure integrates a stereoscopic image on the back with an external light window and reinforcing member, addressing the limitations of conventional cards by enabling clear 3D viewing without films, maintaining a single card appearance and enhancing image clarity.

JP7827929B1Active Publication Date: 2026-03-10ヘヨンチョイ
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2025-11-14
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Conventional cards lack the ability to display a 3D image without using film-type devices that require a transparent surface, which limits configuration and size, and adding additional devices interrupts the card image, reducing marketability and functionality.

Method used

A card structure that integrates a stereoscopic image on the back with an external light window and reinforcing member, allowing 3D viewing without films, and maintains a single-plate card appearance by aligning lenses with optical axes through blocking films and a reinforcing member.

Benefits of technology

Enables clear 3D image observation without separate lighting, maintaining a single card image on the front and providing a 3D image on the back, enhancing marketability and functionality with clearer 3D images up to 1.5 times brighter.

✦ Generated by Eureka AI based on patent content.

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    Figure 0007827929000001_ABST
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Abstract

We present a method and structure for combining, in a single card, a card image on the front side of the card, a stereoscopic image on the back side of the card that allows a stereoscopic image to be seen, and a stereoscopic observation structure that allows the stereoscopic image to be observed in three dimensions in a thin film form. [Solution] The three-dimensional card is characterized by having a horizontal fold line 10 between the central part 1b of the card and the bottom surface 1c of the card, a lower fold line 8 between the bottom surface 1c of the card and the lower blocking surface 7, vertical fold lines 15 on the left and right sides of the central part 1b of the card and between the left and right blocking films and the lens plate 5, and an upper fold line 8 between the external light window 2 and the upper blocking surface 6, so that the bottom surface 1c of the card rotates and moves back and forth below the card 1 to form a single card 1 or three-dimensional device.
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Description

[Technical Field]

[0001] The present invention relates to a 3D card in which a card image and a 3D image observation device are combined to form a single card. [Background technology]

[0002] A card is a printed matter consisting of a photograph, a picture, an image, etc. on a rectangular flat surface, and is used for purposes such as collection cards, Christmas cards, birthday cards, and postcards. Conventionally, such cards have only provided a simple printed image, and no device has been provided that can display a 3D image related to the card along with the image of the card. In addition, conventional 3D viewer devices are film-type devices that allow light to pass through from the back, so a transparent surface must be formed, which limits the configuration and size of the card image. Such films are expensive to manufacture because they use photographic paper, and their manufacture and use are restricted due to the use of chemical substances in the film itself. Furthermore, although the image should be displayed on the entire front of the card as a single plate, when an additional device is added, part of the card surface is separated or cut off by the additional device, thereby reducing the marketability and functionality of the card. Therefore, a need has arisen for a method of constructing a 3D card that provides a card image without interruption on a single single-plate card, allows card-related images to be viewed in 3D without using a film, and simultaneously provides 3D images along with the card image. Summary of the Invention [Problem to be solved by the invention]

[0003] The present invention provides a method and structure for combining, in a thin film form, a card image on the front of the card, a stereoscopic image on the back of the card that allows a stereoscopic image to be seen, and a stereoscopic observation structure that allows the stereoscopic image to be observed in three dimensions. [Means for solving the problem]

[0004] The present invention comprises a card and a stereo image on the back of such card. An external light window for brightly illuminating the three-dimensional image formed on the back of the card with external light is formed, and a reinforcing member is provided, and the external light window is formed on the basis of such a reinforcing member. Such a reinforcing member and external light window are configured on the back side of the card so that the image on the front side of the card can be displayed without interruption. One end of the reinforcing member in the front-rear direction is connected to the left and right rear surfaces of the card, and the other end is connected to the upper blocking surface.

[0005] The back surface of the card is provided with a three-dimensional image, and lens plates with left and right lenses and left and right blocking films are provided on both the left and right sides of the central part of the card. An upper blocking surface is formed on the upper portion of the lens plate and is connected to one end of the reinforcing member. The lower part of the lens plate is connected to a lower blocking surface, and the lower blocking surface is connected to the lower end of the card. Also, a horizontal fold line is provided between the center of the card and the lower surface of the card, a lower fold line is provided between the lower surface of the card and the lower blocking surface, and vertical fold lines are provided between the center of the card and the left and right blocking films and lens plate, respectively. [Effects of the Invention]

[0006] The present invention has the effect of providing a card image on the front side of the card and a stereoscopic image on the back side of the card by providing left and right images for stereoscopic use on the back side of the card. The external light window structure formed by the reinforcing member acts as a supporting force connecting the card and the three-dimensional observation device, thereby supporting and operating the entire structure of the present invention, and also has the effect of converting the underside of the card into a single card or three-dimensional device by rotating and moving the card front and back below the card. That is, when the present invention is used for a three-dimensional image, the bottom of the card rotates in the reverse direction and is transformed into the bottom of a three-dimensional observation device, so that when folded, it becomes a card, and when used, it becomes a three-dimensional observation device. Furthermore, since the external light window structure is configured on the back side of the card, it has the effect of providing a single, uninterrupted card image. In addition, by linking the left and right blocking films at both ends of the center of the card with the left and right of the lens plate, the left and right lenses for stereoscopic images on the back of the card can be aligned horizontally with the optical axis, allowing a stereoscopic image to be observed. In addition, a reinforcing member is provided between the center of the card and the upper blocking surface, and the external light window connected based on this reinforcing member provides support so that the entire structure is firmly supported and operates when the user uses the present invention. In addition, this external light window is constructed with a reinforcing member at the bottom, which increases the area of ​​the external light window by more than 50% due to its supporting force. Therefore, external light entering from outside is irradiated onto the surface of the 3D image, creating a 3D image that is 1.5 times clearer without the need for a separate lighting device. Therefore, in the present invention, in a single card structure, a card image such as a photograph or picture is provided on the front side without interruption, and an image related to the card can be observed as a clear three-dimensional image on the back side of the card, so that it can be applied to birthday cards, Christmas cards, business cards, etc., and can be collected and stored like collectible cards or autograph cards. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is an explanatory diagram of the overall configuration of the present invention. [Figure 2] FIG. 2 is a side view of the configuration of the present invention. [Figure 3] Figure 3 is a reference diagram 1 for use in a three-dimensional structure. [Figure 4] Figure 4 is Reference Diagram 2 for use in a three-dimensional structure. BEST MODE FOR CARRYING OUT THE INVENTION

[0008] As shown in Figures 1 and 2, the present invention comprises a card 1, a back surface of which is provided with 3D left and right eye images 3, 3a, and a reinforcing member 2a for forming an external light window 2 that brightly illuminates the 3D left and right eye images 3, 3a formed on the back surface of the card 1 with external light, one end of the reinforcing member 2a in the front-to-rear direction being connected to the rear surface of the card 1 and the other end being connected to the upper blocking surface 6, and the external light window 2 is formed on the upper surface of the reinforcing member 2a based on the reinforcing member 2a. The card central portion 1b has images 3, 3a for the left and right eyes on the back surface, and left and right blocking films 4, 4a are formed on both the left and right sides of the lens plate 5 having left and right lenses 5a, 5b. An upper blocking surface 6 is formed on the upper portion of the lens plate 5, and is connected to one end of the reinforcing member 2a of the external light window 2. A lower blocking surface 7 is formed on the lower portion of the lens plate 5, and is connected to the lower surface 1c of the card. The card is also characterized by having a horizontal fold line 10 between the central part 1b of the card and the lower surface 1c of the card, a lower fold line 9 between the lower surface 1c of the card and the lower blocking surface 7, and vertical fold lines 14, 15, 16 between the left and right sides of the central part 1b of the card, the left and right blocking films 4, 4a, and the lens plate 5, respectively.

[0009] As shown in Figure 1, the present invention is configured as a single card 1 with an image or photograph on the front of the card 1 formed without interruption, and as shown in Figure 1, on the back of the card 1, a stereoscopic observation device is combined with a part of the card 1 to form it as part of the card. For convenience of explanation, the structure of the card 1 will be explained by dividing it into three parts in the vertical direction: an upper part 1a of the card, a central part 1b of the card, and a lower part 1c of the card. As shown in FIG. 1, such a stereoscopic observation device forms a stereoscopic image 3 on the back of the central portion 1b of the card, which is made up of stereoscopic left and right eye images 3a and 3b. The reason why the stereoscopic left and right eye images 3a, 3b are formed on the back of the card 1 in this way is to form the card 1 and the stereoscopic image into a single card 1 structure. External light is incident on the upper end of the 3D image 3 in the central portion 1b of the card, and an external light window 2 is formed to brightly illuminate the surface of the 3D image 3. The external light window 2 is provided with a reinforcing member 2a made of a transparent plastic or the like in advance, and the external light window 2 is formed on the basis of the reinforcing member 2a.

[0010] As shown in FIGS. 3 and 4, the more external light enters the periphery of the external light window 2, the clearer the stereoscopic image becomes. Therefore, the left and right connecting surfaces of the external light window 2 are the parts that are most heavily loaded, connecting the card 1 and the lens plate 5. In actual use, the periphery of the external light window 2 is formed like a small band with a width of 5 mm, and after using this configuration, it becomes twisted and breaks after 2-3 uses, making it unusable. Therefore, even after a few uses, the band around the external light window 2 breaks and becomes unusable, making it impossible to form the external light window 2.

[0011] In order to solve this problem, the present invention forms a reinforcing member 2a on the entire left and right sides and front and back of the external light window 2 connected to the card 1 using one of the materials selected from hard paper, plastic sheet, reinforcing tape, and transparent film, as shown in Figure 4, and on top of this, the external light window 2 can be formed, and its size can be made as large as possible. The area of ​​the external light window 2 formed by such a reinforcing member 2a can be expanded by approximately 50% or more due to the supporting force of the reinforcing member 2a, making it possible to view clearer 3D images that are approximately 1.5 times or more. Since printing or the like on the front surface is not possible for such an external light window 2, it is configured on the back surface of the card 1. This configuration does not affect the configuration of the card image picture on the front surface of the card 1. In this invention, the upper end of the lens plate 5 is connected to an upper blocking surface 6 which is connected to the external light window 2, and the lower end of the lens plate 5 is connected to a lower blocking surface 7, the lower end of which is also connected to the lower end of the card bottom 1c.

[0012] Each of the components of the present invention is connected such that the upper end of the central portion 1b of the card is connected to the lower end of the external light window 2 by a horizontal fold line 13, the upper end of the external light window 2 is connected to the upper end of the upper blocking surface 6 by an upper fold line 8, the lower end of the upper blocking surface 6 is connected to the upper end of the lens plate 5 by a horizontal fold line 11, the lower end of the lens plate 5 is connected to the upper end of the lower blocking film 7 by a horizontal fold line 12, and the lower end of the lower blocking surface 7 is connected to the lower end of the lower surface 1c of the card by a lower fold line 9. The left end of the card central surface 1b and the front of the left blocking film 4 are linked to a vertical fold line 14, the rear of the left blocking film 4 is linked to the lens plate 5 and a vertical fold line 16, and a vertical fold line 15 is formed in the center of the left blocking film 4 so that the left blocking film 4 is folded in the front-to-rear direction and unfolded. The right blocking film 4a is configured in the same manner as the left blocking film 4. In this invention, of the left and right sides of the central portion 1b of the card, the left side is connected to one of the left blocking membranes 4, and the right side is connected to one of the right blocking membranes 4a, and the other side of the left blocking membrane 4 is also connected to the left end of the lens plate 5, and the other side of the right blocking membrane 4a is also connected to the right end of the lens plate 5.

[0013] In addition, the present invention provides a horizontal fold line 10 between the central portion 1b of the card and the bottom surface 1c of the card, vertical fold lines 14, 15, 16 between the left and right sides of the central portion 1b of the card and the left and right blocking films 4, 4a, and between the left and right blocking films 4, 4a and the lens plate 5, an upper fold line 8 between the external light window 2 and the upper blocking surface 6, and a lower fold line 9 between the bottom surface 1c of the card and the lower blocking surface 7. The reason why the back surface of the central portion 1b of the card, i.e., the left and right sides of the stereoscopic left and right eye images 3a, 3b are provided with left and right blocking films 4 and 4a, respectively, and are connected to the lens plate 5 is to align the centers of the left and right eye images 3a, 3b with the optical axes of the left and right lenses 5a, 5b of the lens plate 5, so that the stereoscopic image can be observed. When used for stereoscopic observation, as shown in Figures 3 and 4, when the user presses the upper fold line 8 and the lower fold line 9, the left and right blocking membranes 4, 4a unfold and the reinforcing member 2a aligns the centers of the left and right eye images 3, 3a formed on the back of the card 1 with the optical axes of the left and right lenses 5a, 5b formed on the lens plate 5. Furthermore, the heavy lens plate 5 and the back surface of the card 1 are firmly connected by a reinforcing member 2a, and the horizontality of the optical axis is also firmly maintained.

[0014] Also, as shown in FIGS. 1 and 2, when the bottom surface 1c of the card is configured with a vertical straight line by the horizontal fold line 10, the entire structure of the card 1 becomes a single card 1 structure. As shown in Figures 3 and 4, when the user presses the upper fold line 8 and the lower fold line 9, the underside 1c of the card is folded backward, and the left and right barrier membranes 4, 4a unfold, converting the card into a stereoscopic observation device that moves the lens plate 5 to the focal length position of each lens. By folding the upper fold line 8 and the lower fold line 9 again, the card is restored to its thin film structure as shown in FIGS. That is, as shown in Figures 3 and 4, when the lower surface 1c of the card is rotated backward by the horizontal fold line 10 formed between the central portion 1b of the card and the lower surface of the card to form the lower blocking surface 7 and the bottom surface, the left and right blocking membranes 4, 4a unfold in the front-to-back direction to form a three-dimensional observation device. When the bottom surface 1c of the card rotates and returns to the bottom of the card 1, the card 1 assumes the form of a thin film as shown in FIG.

[0015] As shown in Figures 1 and 2, the present invention is characterized in that the front of the structure is made up of a single, continuous card 1, the left and right shielding films 4, 4a align the center of the stereoscopic image with the optical axes of the left and right lenses 5a, 5b, the underside 1C of such a card rotates backward along a horizontal fold line 10, and the periphery of the external light window 2 is constructed based on a reinforcing member 2a, allowing for firm support for the external light window 2. Therefore, in the present invention, the back of one card 1 is provided with an external light window 2 having left and right eye images 3, 3a for stereoscopic viewing, left and right blocking films 4, 4a and a reinforcing member 2a, and a lens plate 5 having left and right lenses 5a, 5b, so that the image of the card 1 and a stereoscopic image can be provided with one card. In other words, this invention is configured by combining one card 1 with a three-dimensional observation structure on the back of the card 1, and this structure forms a three-dimensional card that provides one card image on the front and a three-dimensional image on the back of the card 1. Therefore, the present invention can be applied to 3D cards such as 3D Christmas cards, 3D birthday cards, 3D business cards with 3D images, 3D autograph cards of celebrities such as sports stars and entertainers, and 3D collectible cards of animation and manga characters. [Explanation of symbols]

[0016] 1 card 1a Top of card 1b Center of card 1c Underside of card 2. Outdoor lighting window 2a Reinforcement member 3 Left eye image 3a Right eye image 4 Left blocking membrane 4a Right blocking membrane 5 Lens plate 5a left lens 5b Right lens 6 Upper blocking surface 7 Lower blocking surface 8 Top fold line 9 Bottom fold line 10,11,12,13 horizontal fold lines 14,15,16 Vertical fold lines

Claims

1. In the three-dimensional card, One card (1); A three-dimensional image (3) provided on the back of the card (1); A reinforcing member (2a) formed on the back surface of the upper surface (1a) of the card (1); an external light window (2) formed on the reinforcing member (2a); Left and right blocking membranes (4, 4a) provided on both the left and right sides of the card center portion (1b) of the card (1); a lens plate (5) provided in association with the left and right blocking films (4, 4a); The card (1) includes a lower blocking surface (7) that is connected to the lower surface (1c) of the card, The three-dimensional card is characterized in that, in the structure of the one card (1), the card (1) image is provided on the front surface and the three-dimensional image (3) is provided on the back surface.

2. A horizontal fold line (10) is provided between the central portion (1b) of the card and the underside (1c) of the card; Vertical folding lines (14, 15, 16) are provided between the left and right sides of the card central portion (1b) and the left and right blocking films (4, 4a), and between the left and right blocking films (4, 4a) and the lens plate (5), An upper fold line (8) is provided between the external light window (2) and the upper blocking surface (6), 2. The three-dimensional card according to claim 1, characterized in that a lower fold line (9) is provided between the lower surface (1c) of the card and the lower blocking surface (7).

Citation Information

Patent Citations

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