A slideshow greeting card that can project images

Abstract

This utility model relates to the field of greeting card technology, specifically to a slideshow greeting card capable of projecting images. It includes a card body and a box body disposed on the card body. The box body contains a film strip, a light source, a lens assembly, and a battery. The box body also contains a rotating disk and at least one winding post. The film strip is wound around the outer wall of the rotating disk and the outer wall of the winding post. The box body has a projection window. A projection area is provided between the light source and the projection window. The lens assembly is disposed between the projection window and the projection area. The light source, projection area, lens assembly, and projection window are arranged sequentially and are on the same horizontal line. The film strip has multiple positioning holes. The rotating disk has multiple positioning protrusions for engaging with the positioning holes. It can directly project photos and videos onto a wall or other flat surface.

Description

Technical Field

[0001] This utility model relates to the field of greeting card technology, specifically to a slideshow greeting card that can project images. Background Technology

[0002] Greeting cards are paper or electronic cards used to express blessings, congratulations, or gratitude. With advancements in technology, people have higher expectations for ways to express blessings and record fond memories. While traditional paper greeting cards offer a unique warmth and sense of ritual, they do have limitations in terms of functionality and interactivity.

[0003] Although new types of greeting cards such as audio greeting cards and video greeting cards have been launched on the market, these cards usually require an internet-connected device such as a mobile phone to view the specific wishes, which undoubtedly increases the complexity and inconvenience of using them. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a slideshow greeting card that can project images directly onto a wall or other flat surface without the need for additional equipment.

[0005] To achieve the above objectives, the specific solution of this utility model is as follows: A slideshow greeting card capable of projecting images includes a card body and a box body disposed on the card body; the box body is provided with a film strip, a light source, and a lens group; the card body is also provided with a battery for power supply; the box body is provided with a rotating disk and at least one winding post; the film strip is wound around the outer wall of the rotating disk and the outer wall of the winding post; the box body is provided with a projection window; a projection area is provided between the light source and the projection window; the lens group is disposed between the projection window and the projection area; the light source, projection area, lens group, and projection window are arranged sequentially; and the light source, projection area, lens group, and projection window are on the same horizontal line; the film strip has a plurality of positioning holes arranged on it; the rotating disk has a plurality of positioning protrusions for cooperating with the positioning holes; the positioning protrusions are used to drive the film strip to move between the rotating disk, the projection area, and the winding post.

[0006] The present invention is further configured such that the lens group includes a fixed lens, a movable lens, and a lens barrel; the fixed lens is mounted on the housing through a fixing groove; the lens barrel is slidably connected to the housing through a first slide rail; the lens barrel is telescopically disposed in the projection window; the movable lens is installed in the lens barrel; the fixed lens and the movable lens are on the same horizontal line.

[0007] The present invention is further configured such that the box body is provided with a first clearance hole; a focusing slider is provided in the first clearance hole; the focusing slider is connected to the lens barrel; and the focusing slider is provided with anti-slip texture.

[0008] The present invention is further configured such that the housing is provided with a switch baffle for blocking or exposing the projection window; the switch baffle is provided with a projection hole; the switch baffle is slidably connected to the inner wall of the housing through a second sliding groove; when the power is on, the light source, the projection hole and the projection window are on the same horizontal line.

[0009] The present invention is further configured such that the number of the winding pillars is five; the five winding pillars are distributed around the rotating disk.

[0010] The present invention is further configured such that the film tape is made of Super 8 film or standard 8mm film.

[0011] The present invention is further configured such that the box body is provided with a relief groove and at least one pressure block; the horizontal height of the film is higher than the horizontal height of the relief groove; and the pressure block is located above the relief groove.

[0012] The beneficial effects of this invention are: when the light source is turned on, the image on the film strip in the projection area will be magnified by the lens group and projected onto the wall or other flat surface, increasing interactivity and emotional expression without relying on additional equipment. Attached Figure Description

[0013] The utility model will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present utility model. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the box body of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the box body of this utility model from another perspective;

[0017] Figure 4 This is a top view of the film tape of this utility model;

[0018] Figure 5 for Figure 3 Enlarged view of section A in the middle.

[0019] The components include: 1. Card body; 2. Box body; 3. Film tape; 4. Light source; 5. Rotating disk; 6. Circulating column; 7. Projection window; 8. Projection area; 9. Positioning hole; 10. Positioning protrusion; 11. Lens barrel; 12. Fixing groove; 13. First slide rail; 14. First clearance hole; 15. Focusing slider; 16. Switch stop; 17. Projection hole; 18. Second slide rail; 19. Clearance groove; 20. Wire pressing block; 21. Fixing lens; 23. Battery. Detailed Implementation

[0020] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention. It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0021] like Figure 1-5 As shown, this embodiment of a slideshow greeting card capable of projecting images includes a card body 1 and a box 2 disposed on the card body 1; the box 2 contains a film strip 3, a light source 4, and a lens assembly; the card body 1 also contains a battery 23 for power supply; the box 2 contains a rotating disk 5 and at least one winding post 6; the film strip 3 is wound around the outer wall of the rotating disk 5 and the outer wall of the winding post 6; the box 2 has a projection window 7; a projection area 8 is provided between the light source 4 and the projection window 7; the lens assembly is disposed between the projection window 7 and the projection area 8; the light source 4, the projection area 8, the lens assembly, and the projection window 7 are arranged sequentially; and the light source 4, the projection area 8, the lens assembly, and the projection window 7 are on the same horizontal line; the film strip 3 has a plurality of positioning holes 9 arranged on it; the rotating disk 5 has a plurality of positioning protrusions 10 for cooperating with the positioning holes 9; the positioning protrusions 10 are used to drive the film strip 3 to move between the rotating disk 5, the projection area 8, and the winding post 6.

[0022] In practical use, film tape 3 is simply a piece of Super 8 film or standard 8mm film joined end to end. Light source 4 is powered by a built-in battery 23, which can be a button cell battery. Battery 23 can be installed on the card body 1. Light source 4 is used to illuminate the film and is usually located at the back of film tape 3 to ensure even light distribution. Users can transfer the audio-visual data they want to display onto film tape 3 via digital-to-film transfer, and then assemble the film tape 3 containing the audio-visual information into the cartridge 2. When assembling the film tape 3, it is necessary to ensure that the positioning hole 9 on the film tape 3 aligns with the positioning protrusion 10 on the rotating disk 5 and engages. When the rotating disk 5 is rotated, the positioning protrusion 10 moves that segment of film. After the segment of film moves, the positioning protrusion 10 of that segment separates from the positioning hole 9 on the film tape 3, and the next segment of positioning protrusion 10 on the rotating disk 5 engages with the positioning hole 9 on the next segment of film, thus achieving the purpose of moving the film tape 3 between the rotating disk 5, the projection area 8, and the pillar 6. When the light source 4 is turned on, the image on the film tape 3 in the projection area 8 will be magnified by the lens group and projected onto the wall or other flat surface, increasing interactivity and emotional expression.

[0023] like Figure 1-5 As shown in the figure, this embodiment of a slide card capable of projecting images includes a lens group comprising a fixed lens 21, a movable lens, and a lens tube 11; the fixed lens 21 is mounted on the box body 2 via a fixing groove 12; the lens tube 11 is slidably connected to the box body 2 via a first slide rail 13; the lens tube 11 is telescopically disposed in the projection window 7; the movable lens (not shown in the figure) is installed in the lens tube 11; the fixed lens 21 and the movable lens are on the same horizontal line.

[0024] Specifically, both the movable lens and the fixed lens 21 are convex lenses. The fixed lens 21 is used for initial magnification of the image on the film. The movable lens is used for further adjustment of the magnification. The first slide rail 13 is used to adjust the distance between the fixed lens 21 and the movable lens. Different magnification effects are achieved by changing the distance between the two convex lenses, and the final image is focused onto the observer's eye or the projection screen.

[0025] like Figure 1 As shown in this embodiment, a slide card capable of projecting images is provided on the box body 2. A first clearance hole 14 is provided in the first clearance hole 14. A focus slider 15 is provided in the first clearance hole 14. The focus slider 15 is connected to the lens barrel 11. The focus slider 15 is provided with anti-slip texture.

[0026] The above-mentioned design facilitates the user's adjustment of the distance between the fixed lens 21 and the movable lens. The anti-slip texture facilitates the adjustment of the position of the focus slider 15.

[0027] like Figure 2-5As shown in the figure, in this embodiment of a slide card that can project images, the box body 2 is also provided with a switch baffle 16 for covering or revealing the projection window 7; the switch baffle 16 is provided with a projection hole 17; the switch baffle 16 is slidably connected to the inner wall of the box body 2 through a second sliding groove 18; when the device is powered on, the light source 4, the projection hole 17 and the projection window 7 are on the same horizontal line.

[0028] When the device is off, the switch cover 16 blocks the film strip 3, and the projection function is disabled. Projection greeting cards with the switch cover 16 can control the projection on and off, providing a more convenient experience.

[0029] like Figure 2-5 As shown, in this embodiment, a slideshow greeting card capable of projecting images has five rotating posts 6 distributed around the rotating disk 5.

[0030] The above configuration makes full use of the space inside the housing. Multiple spiral pillars 6 can accommodate longer film strips 3, thereby enabling the playback of longer videos, increasing the content capacity of greeting cards, and providing a richer visual experience.

[0031] like Figure 1-5 As shown in this embodiment, a slideshow greeting card capable of projecting images is provided, wherein the film tape 3 is made of Super 8 film or standard 8mm film.

[0032] In practical applications, Super 8 film, standard 8mm film, or other film tapes that are narrower than Super 8 film can also be used, along with side projection, which can greatly reduce the thickness of the casing and the greeting card (the overall packaging should not exceed 11mm), thus reducing transportation costs.

[0033] like Figure 1-5 As shown in the figure, in this embodiment, a slide greeting card that can project images is provided in the box body 2, which is provided with a relief groove 19 and at least one pressing block 20; the horizontal height of the film tape 3 is higher than the horizontal height of the relief groove 19; the pressing block 20 is located above the relief groove 19.

[0034] In practical applications, to ensure a stable power supply, a power cord is used, and a recessed groove 19 is added to house the cord, ensuring that the cord does not obstruct the movement of the film. To further improve reliability, a wire clamping block 20 is added to prevent the cord from detaching from the groove and obstructing the movement of the film 3 during transportation or use. The housing may include a top shell and a bottom shell; the recessed groove 19, rotating disk 5, light source 4, winding post 6, etc., are all mounted on the bottom shell; the wire clamping block 20 can be mounted on the corresponding position on the top shell. After assembling the top shell and bottom shell, the wire clamping block 20, the cord, and the recessed groove 19 can be assembled together.

[0035] The above description is only a preferred embodiment of the present utility model. Therefore, any equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included within the protection scope of the present utility model patent application.

Claims

1. A slideshow greeting card capable of projecting images, characterized in that: It includes a card body (1) and a box (2) disposed on the card body (1); the box (2) is provided with a film strip (3), a light source (4) and a lens group; the card body (1) is also provided with a battery (23) for power supply; The box body (2) is provided with a rotating disk (5) and at least one rotating column (6); The film strip (3) is wrapped around the outer wall of the rotating disk (5) and the outer wall of the winding column (6); The box body (2) is provided with a projection window (7); a projection area (8) is provided between the light source (4) and the projection window (7); the lens group is provided between the projection window (7) and the projection area (8); the light source (4), the projection area (8), the lens group and the projection window (7) are arranged in sequence; and the light source (4), the projection area (8), the lens group and the projection window (7) are on the same horizontal line; The film strip (3) has a plurality of positioning holes (9); the rotating disk (5) has a plurality of positioning protrusions (10) for cooperating with the positioning holes (9); the positioning protrusions (10) are used to drive the film strip (3) to move between the rotating disk (5), the projection area (8) and the rotating column (6).

2. A slideshow greeting card capable of projecting images according to claim 1, characterized in that: The lens group includes a fixed lens (21), a movable lens, and a lens tube (11); The fixed mirror (21) is mounted on the housing (2) through a fixing groove (12); The mirror tube (11) is slidably connected to the box body (2) via the first slide rail (13); the mirror tube (11) is telescopically disposed in the projection window (7); the movable mirror is installed in the mirror tube (11); the fixed mirror (21) and the movable mirror are on the same horizontal line.

3. A slideshow greeting card capable of projecting images according to claim 2, characterized in that: The housing (2) is provided with a first clearance hole (14); a focusing slider (15) is provided in the first clearance hole (14); the focusing slider (15) is connected to the lens barrel (11); the focusing slider (15) is provided with anti-slip texture.

4. A slideshow greeting card capable of projecting images according to claim 1, characterized in that: The box (2) is also provided with a switch baffle (16) for covering or exposing the projection window (7); The switch baffle (16) is provided with a projection hole (17); the switch baffle (16) is slidably connected to the inner wall of the box (2) through the second slide groove (18); when the power is on, the light source (4), the projection hole (17) and the projection window (7) are on the same horizontal line.

5. A slideshow greeting card capable of projecting images according to claim 1, characterized in that: The number of the five winding pillars (6) is five; the five winding pillars (6) are distributed around the rotating disk (5).

6. A slideshow greeting card capable of projecting images according to claim 1, characterized in that: The film tape (3) is made of Super 8 film or standard 8 mm film.

7. A slideshow greeting card capable of projecting images according to claim 1, characterized in that: The box body (2) is provided with a relief groove (19) and at least one pressure block (20); the horizontal height of the film tape (3) is higher than the horizontal height of the relief groove (19); the pressure block (20) is located above the relief groove (19).

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