Light and shadow game teaching aid
Patent Information
- Application Number
- CN202521442145.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-10
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-07-10
AI Technical Summary
[0005]本实用新型为了解决部分光影教具功能单一、且使用受限的问题,提供光影游戏教学用具,通过不同光影板与辅助工具之间的组合,能够开展不同类型的光影学习,而且儿童可以主动选择在房间的不同位置开展光影探索,极大增强空间灵活性与环境利用率
本实用新型的固定光影板安装固定在移动台上,方便移动位置,固定光影板具有尺寸大的特点,孩子们身体摆出不同的姿势,能够通过灯光照射在固定光影板上留下姿势轮廓。移动光影板收纳在移动台上,但是移动光影板具有尺寸小、便捷的特点,孩子们可以拿取移动光影板在不同的位置开展光影游戏。
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Figure CN224668355U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of educational toys, and in particular to teaching aids for light and shadow games. Background Technology
[0002] With the deepening of early childhood education reform, conducting corresponding light and shadow education can help children gradually form a pre-scientific concept of optical phenomena. Through simple props and natural phenomena, guiding children to explore the mysteries of light and shadow cultivates their interest and ability in this exploration, allowing them to grasp the basic knowledge of optical phenomena and principles during their growth.
[0003] Learning about light and shadow through hand shadow games or prism dispersion experiments is relatively simple and has limited functionality, which needs to be improved to enhance its appeal to children. There are also multifunctional light and shadow teaching tools, such as the light and shadow mirror teaching table disclosed in patent publication number CN214230376U, which allows for drawing activities and also teaches about light reflection, mirror imaging, and light and color. However, the entire teaching table is not easily movable, limiting children's learning to a designated area and restricting their range of movement.
[0004] Based on this, and in accordance with the educational vision outlined in the "Guidelines for Kindergarten Education" and the "Guidelines for Learning and Development of Children Aged 3-6," this paper proposes teaching aids for light and shadow games, using light and shadow as a medium to construct immersive exploration scenarios. Applying these self-made teaching aids to light and shadow teaching in kindergartens can stimulate children's active exploration behavior. Summary of the Invention
[0005] To address the problem that some light and shadow teaching aids have limited functionality and restricted use, this utility model provides light and shadow game teaching aids. By combining different light and shadow boards with auxiliary tools, different types of light and shadow learning can be carried out. Moreover, children can actively choose to explore light and shadow in different locations in the room, greatly enhancing spatial flexibility and environmental utilization.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: The teaching aids for light and shadow games include a fixed light and shadow board, a movable light and shadow board, a rotating light and shadow board, and auxiliary tools. The fixed light and shadow board includes a picture frame and a light-emitting film laid inside the picture frame. When illuminated by a light source, the light-emitting film can emit light on its own. The movable light and shadow board has the same structure as the fixed light and shadow board, but the movable light and shadow board is smaller than the fixed light and shadow board. The rotating light and shadow panel includes a fixed plate, a rotating plate, and a light-gathering film. The rotating plate is rotatably connected above the fixed plate to facilitate manual rotation of the rotating plate. The light-gathering film is disposed above the rotating plate. The auxiliary tools include a flashlight, a prism, a hollow square piece, a character insert piece, and a color filter used in conjunction with the moving light and shadow panel, as well as a hollow circular piece used in conjunction with the rotating light and shadow panel.
[0007] Furthermore, it also includes a movable platform, which comprises a drawer cabinet and casters located at the lower corners of the drawer cabinet; The fixed light and shadow panel is installed on one side of the drawer cabinet, and the movable light and shadow panel is installed above the drawer cabinet. The movable light and shadow panel and the fixed light and shadow panel are arranged in parallel with each other. The rotating light and shadow panel and auxiliary tools are installed inside the drawer cabinet.
[0008] Furthermore, one side of the drawer cabinet extends outward to form a placement platform. The placement platform has a cross-section in the shape of "[". The fixed light and shadow plate is arranged on the placement platform. Multiple lower limit blocks are also provided on both sides and in the middle of the placement platform. The fixed light and shadow plate is snapped between the lower limit blocks and the drawer cabinet to prevent the fixed light and shadow plate from moving left, right, forward, or backward.
[0009] Furthermore, the placement platform is also threaded with hand-tightening bolts on both sides. These bolts pass through the placement platform and are inserted into the edge of the fixed light and shadow plate. This prevents the fixed light and shadow plate from moving up and down, reliably mounting the fixed light and shadow plate on the moving platform.
[0010] Furthermore, limit plates are symmetrically arranged on both sides above the drawer cabinet, and at least two movable light and shadow plates are engaged between the two limit plates, which facilitates the removal and placement of the movable light and shadow plates. At least two movable light and shadow plates are arranged on the same straight line and abut against each other. The height of the movable light and shadow panel is less than that of the fixed light and shadow panel, and the width of the movable light and shadow panel is less than that of the fixed light and shadow panel.
[0011] Furthermore, each of the limiting plates is threaded with a hand-tightening bolt. The hand-tightening bolt passes through the limiting plate and abuts against the edge of the movable light and shadow panel, causing at least two movable light and shadow panels to move closer together. This improves the stability of the movable light and shadow panel placement.
[0012] Furthermore, the rotating light and shadow panel is arranged inside the drawer of the drawer cabinet, and a manual turntable is provided between the fixed plate and the rotating plate to facilitate the smooth rotation of the rotating plate. The upper surface of the rotating plate is flat or umbrella-shaped.
[0013] Furthermore, the flashlight, prism, lenticular lens, color filter, and perforated disc are all arranged inside the drawers of the cabinet. The flashlights include high-powered flashlights as well as red, blue, and green flashlights; the character inserts are cartoon character cards, and there are multiple character inserts, each with a handheld stick attached, facilitating games similar to shadow puppetry; the color filters include red, green, and blue filters; and there are multiple hollowed-out circular pieces, each with a different hollowed-out pattern.
[0014] Furthermore, there are multiple hollow square pieces, each with a different hollow pattern, and these hollow square pieces are arranged on a drawer cabinet between a movable light and shadow panel and a fixed light and shadow panel.
[0015] The beneficial effects of this utility model through the above technical solution are: This invention features a fixed light and shadow panel that is mounted on a movable platform for easy repositioning. The fixed panel is large enough that children can pose in various ways, with the light casting their silhouettes onto it. The movable panel, stored on the platform, is small and easy to use, allowing children to easily access it and engage in light and shadow games in different locations.
[0016] This utility model's movable light and shadow board can be used with a prism to allow children to observe prism dispersion; with character inserts to allow children to create their own light and shadow games; with multiple cut-out squares to allow children to observe three-dimensional light and shadow changes; and with colored filters or other objects to observe changes in shadow color, size, and shape, exploring the relationship between the light source position and shadow characteristics. Rotating the light and shadow board in conjunction with the cut-out circular pieces allows children to experience the persistence of vision effect and understand the principles of dynamic imaging. Therefore, the movable light and shadow board, combined with different tools, can demonstrate different light and shadow phenomena, stimulating children's interest in exploration and providing a more convenient and intuitive understanding of physical phenomena through various light and shadow changes.
[0017] When not in use, the light and shadow boards and auxiliary tools of this invention can be neatly stored on a movable platform. Storage allows for the display of different types of light and shadow boards while also facilitating easy access during use. When children participate in light and shadow games, they actively seek out the tools, which helps improve their fine motor skills. Through observation and play, they can develop a basic understanding of shadows. Through fun experiments and games, children's curiosity about optical phenomena is stimulated, and their abilities to explore and discover are cultivated. Attached Figure Description
[0018] Figure 1 This is the front view of the light and shadow game teaching tool of this utility model.
[0019] Figure 2 This is a rear view of the light and shadow game teaching tool of this utility model.
[0020] Figure 3 This is a side view of the light and shadow game teaching tool of this utility model.
[0021] Figure 4 This is a top view of the light and shadow game teaching tool of this utility model.
[0022] Figure 5 This is a schematic diagram of the lower limit block of the light and shadow board that limits and fixes the light and shadow board in the light and shadow game teaching tool of this utility model.
[0023] Figure 6 This is a schematic diagram of the limiting plate restricting the movement of the light and shadow board in the light and shadow game teaching tool of this utility model.
[0024] Figure 7 This is a cross-sectional view of the movable platform of the light and shadow game teaching tool of this utility model.
[0025] Figure 8 This is a schematic diagram showing the separation of the drawer and auxiliary tools in the light and shadow game teaching tool of this utility model.
[0026] The attached diagram is labeled as follows: 1 Fixed light and shadow panel, 2 Moving light and shadow panel, 3 Rotating light and shadow panel, 31 Fixed plate, 32 Rotating plate, 4 Photo frame, 5 Photoluminescent film, 6 Moving platform, 7 Drawer cabinet, 71 Drawer, 8 Moving wheels, 9 Placement platform, 10 Lower limit block, 11 Lower hand-tightening bolt, 12 Limiting plate, 121 Trapezoidal plate, 122 Upper limit block, 13 Upper hand-tightening bolt, 14 Manual turntable, 15 Flashlight, 16 Prism, 17 Hollowed-out square piece, 18 Character insert piece, 181 Hand handle, 19 Color filter, 20 Hollowed-out circular piece, 21 Support plate. Detailed Implementation
[0027] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings: like Figures 1-8 As shown, the teaching aids for light and shadow games include a fixed light and shadow board 1, a movable light and shadow board 2, a rotating light and shadow board 3, and auxiliary tools. The fixed light and shadow board 1 includes a frame 4 and a photoluminescent film 5 laid inside the frame 4. The frame 4 is used to protect the photoluminescent film 5. The photoluminescent film 5 is a prior art technology that allows the photoluminescent film 5 to emit light on its own after being illuminated by a light source for a certain period of time and the light source is removed.
[0028] The movable light and shadow panel 2 and the fixed light and shadow panel 1 have the same structure and function, and are arranged in parallel with each other. The difference lies in their positions: the fixed light and shadow panel 1 is relatively fixed, while the movable light and shadow panel 2 is portable and easy to carry and use. The movable light and shadow panel 2 is smaller than the fixed light and shadow panel 1; specifically, the movable light and shadow panel 2 is shorter and narrower than the fixed light and shadow panel 1. Here, the fixed light and shadow panel 1 is approximately 1 meter high.
[0029] To facilitate the unified storage of the fixed light and shadow board 1 and the movable light and shadow board 2, the light and shadow game teaching aids also include a movable platform 6. The movable platform 6 serves a storage function, allowing the light and shadow boards and auxiliary tools to be collected and stored. The movable platform 6 includes a drawer cabinet 7 and four casters 8 located at the lower corners of the drawer cabinet 7. The drawer cabinet 7 has a rectangular structure and includes a drawer 71. The casters 8 are four-way casters with brakes, facilitating the movement of the entire drawer cabinet 7.
[0030] When installing the fixed light and shadow panel 1, a fixed light and shadow panel 1 is set on one side of the drawer cabinet 7. Specifically, one side of the drawer cabinet 7 extends outward to form a placement platform 9. The cross-section of the placement platform 9 is in the shape of "[". The fixed light and shadow panel 1 is placed directly on the placement platform 9, and the placement platform 9 can stably support the fixed light and shadow panel 1.
[0031] To restrict the fixed light and shadow panel 1 and prevent it from detaching from the placement platform 9, multiple lower limit blocks 10 are also provided on both sides and in the middle of the placement platform 9. Here, three lower limit blocks 10 are arranged vertically at intervals on each side of the placement platform 9, and three lower limit blocks 10 are arranged horizontally at intervals in the middle of the placement platform 9. The cross-section of the lower limit blocks 10 is a right trapezoid. All the lower limit blocks 10 are arranged on the same vertical plane. The fixed light and shadow panel 1 is snapped between the lower limit blocks 10 and the drawer cabinet 7. At this time, the fixed light and shadow panel 1 is allowed to move up and down, but it cannot move left and right or forward and backward.
[0032] Meanwhile, to restrict the vertical movement of the fixed light and shadow plate 1, screw bolts 11 are threaded onto both sides of the placement platform 9. These screw bolts 11 pass through the placement platform 9 and are inserted to the edge of the fixed light and shadow plate 1. Holes are drilled on both sides of the fixed light and shadow plate 1 to form openings. Tightening the screw bolts 11 and inserting them into these holes restricts the fixed light and shadow plate 1 and prevents it from moving up and down. After unscrewing the screw bolts 11, the fixed light and shadow plate 1 can be lifted upwards and removed from the placement platform 9.
[0033] In this way, the fixed light and shadow panel 1 is fixedly installed on the moving platform 6, and the fixed light and shadow panel 1 remains in an upright state. Since the fixed light and shadow panel 1 has a large area and a certain weight, the movement of the fixed light and shadow panel 1 needs to rely on the moving platform 6. The fixed light and shadow panel 1 is moved by the moving platform 6, instead of being moved manually.
[0034] It should be noted that since the fixed light and shadow panel 1 is located on one edge of the moving platform 6, care must be taken to balance the weight of the fixed light and shadow panel 1 and the moving platform 6 during manufacturing to avoid the entire moving platform 6 from tipping over due to the greater weight of the upright fixed light and shadow panel 1. The weight of the drawer 71 door can be appropriately increased to balance the weight on both sides of the moving platform 6 and prevent tipping.
[0035] During installation, the movable light and shadow panel 2 is installed above the drawer cabinet 7. Specifically, limit plates 12 are symmetrically installed on both sides of the upper part of the drawer cabinet 7, and the limit plates 12 and the placement platform 9 are located on both sides of the movable platform 6. The limit plate 12 includes a trapezoidal plate 121 and three sets of upper limit members set on the trapezoidal plate 121. The three sets of upper limit members are arranged vertically at intervals, and each set of upper limit members includes two upper limit blocks 122 arranged horizontally at intervals. The upper limit blocks 122 have a triangular cross-section.
[0036] At least two movable light and shadow plates 2 are engaged between the two limiting plates 12. The at least two movable light and shadow plates 2 are arranged on the same straight line and abut against each other. In this embodiment, there are two movable light and shadow plates 2. One side of each movable light and shadow plate 2 is engaged between the two upper limit blocks 122 of the upper limit member. At the same time, two sets of upper limit members are also provided above the drawer cabinet 7, and each movable light and shadow plate 2 corresponds to one set of upper limit members.
[0037] After two movable light and shadow panels 2 are installed between the two limiting plates 12, the two movable light and shadow panels 2 are in contact with each other. At this time, the movable light and shadow panels 2 cannot move left or right or forward or backward, but can only move up and down. When moving upward, the movable light and shadow panels 2 can be pulled out for easy removal and use in other places.
[0038] To increase the reliability of the snap-fit installation of the movable light and shadow panel 2, each limiting plate 12 is threaded with a hand-tightening bolt 13. The hand-tightening bolt 13 passes through the limiting plate 12 and abuts against the edge of the movable light and shadow panel 2. Tightening two hand-tightening bolts 13 causes at least two movable light and shadow panels 2 to move closer together, generating a certain force that causes the movable light and shadow panels 2 to press against each other, thereby improving the reliability of the installation and preventing loosening.
[0039] A rotating light and shadow panel 3 and auxiliary tools are installed inside the drawer cabinet 7. The rotating light and shadow panel 3 is arranged inside the drawer 71 of the drawer cabinet 7. The rotating light and shadow panel 3 includes a fixed plate 31, a rotating plate 32, and a photoluminescent film 5. The rotating plate 32 is rotatably connected above the fixed plate 31. The upper surface of the rotating plate 32 is flat or umbrella-shaped. The photoluminescent film 5 is installed above the rotating plate 32 and is attached to the upper surface of the rotating plate 32.
[0040] In order to achieve the rotation of the rotating disk 32, a manual turntable 14 is provided between the fixed disk 31 and the rotating disk 32. The manual turntable 14 can be a turntable used on a dining table, which can achieve the rotation of the glass plate on the dining table. The difference is that the diameter of the dining table turntable is large, while the diameter of the manual turntable 14 used here is about 20cm. However, the diameter of the rotating disk 32 is larger than that of the manual turntable 14.
[0041] The auxiliary tools include a flashlight 15, a prism 16, a perforated square piece 17 used with the movable light and shadow panel 2, a character insert 18, a color filter 19, and a perforated circular piece 20 used with the rotating light and shadow panel 3. The flashlight 15, prism 16, character insert 18, color filter 19, and perforated circular piece 20 are all arranged inside drawer 71 of the drawer cabinet 7. Multiple partitions are provided inside drawer 71 to divide the space of drawer 71.
[0042] The flashlight 15 includes a high-intensity flashlight 15 and red, blue, and green flashlights 15. Character inserts 18 are cartoon character cards from Journey to the West; there are multiple character inserts 18, such as cards of Sun Wukong, the Bull Demon King, and Sha Wujing. Each character insert 18 has a handle 181 inserted into it. A circular hole is made in the character insert 18, and one end of the handle 181 is inserted into the hole, connecting the handle 181 to the character insert 18, similar to a shadow puppet. Color filters 19 include red, green, and blue filters, with a fish-shaped outline. Multiple perforated discs 20 have different perforation patterns. The perforated discs 20 are placed flat on the rotating disk 32, and when illuminated by strong light, they leave perforation patterns on the light-gathering film 5.
[0043] Since the perforated square piece 17 is used in conjunction with the movable light and shadow panel 2, and the movable light and shadow panel 2 has a large area, the perforated square piece 17 is not placed inside the drawer 71, but rather arranged on the drawer cabinet 7 between the movable light and shadow panel 2 and the fixed light and shadow panel 1. Because the perforated square piece 17 is relatively thin, it can rest against either the movable light and shadow panel 2 or the fixed light and shadow panel 1 when stored. There are multiple perforated square pieces 17, each with a different perforation pattern. The size of the perforated square piece 17 is adapted to the size of the movable light and shadow panel 2, allowing it to fit securely within the frame 4 of the movable light and shadow panel 2.
[0044] Inside the drawer cabinet 7, at least three support plates 21 are also provided. These three support plates 21 are engaged with one edge of the movable light and shadow panel 2, allowing the movable light and shadow panel 2 to be tilted upright, preventing it from lying flat on the table. Both ends of the support plates 21 protrude upwards, and a sloping groove is formed in the middle for engaging the movable light and shadow panel 2. The protrusion heights and lengths at both ends of the support plates 21 are different.
[0045] When applied, this invention can be used to develop different types of games, including: Game 1: Light and Shadow Graffiti 1. Light and Shadow Creation: Using a flashlight 15 in combination with various tools, different materials and body parts, children can create bold works, allowing them to stimulate their creativity and imagination through the interaction between shadows and light and shadow boards, and create a variety of light and shadow combinations.
[0046] For example, one child can stand in front of the fixed light and shadow board 1 and pose in a certain way. Another child holds a flashlight 15, turns it on and shines it on the fixed light and shadow board 1. The child moves the flashlight 15 along the outline of the child's body, which will leave the outline of the child's body on the fixed light and shadow board 1, stimulating the children's curiosity and desire to explore the phenomenon of light and shadow.
[0047] For example, after loosening the top screw 13, the movable light and shadow board 2 can be taken out. The movable light and shadow board 2 can be placed flat on the table or used to stand it on the table using the support plate 21. When a child places their palm flat on the movable light and shadow board 2 and shines a flashlight 15 on the back of their hand, a palm print will be left on the movable light and shadow board 2.
[0048] 2. Color Exploration: Using a flashlight 15 with primary colors—red, blue, and green—to illuminate an object from different angles. The object can be a color filter 19, a pen, a toy, or a 3D-printed cartoon model—anything readily available to the child. Children observe the changes in the color, size, and shape of the shadow, exploring the relationship between the position of the light source and the characteristics of the shadow. Children can also place a prism 16 in front of the movable light and shadow board 2 and shine light on it, creating different colors of light on the board.
[0049] Game Two: A Story of Light and Shadow 1. Scenario Simulation: Take out the movable light and shadow board 2 and place it on the table. The children hold the character inserts 18 and use the light and shadow effects to simulate the story scenario. The light shines on the character inserts 18 from behind, creating light and shadow on the movable light and shadow board 2, making the "shadows" talk. Encourage the children to create stories and express their own ideas. The whole process is similar to the operation of shadow puppetry.
[0050] 2. 3D Light and Shadow: Multiple cutout square pieces 17 are stacked sequentially on the movable light and shadow board 2. First, take one cutout square piece 17 and place it on the movable light and shadow board 2. Shine a light on the cutout square piece 17, leaving a corresponding pattern of light and shadow on the movable light and shadow board 2. Then, take another cutout square piece 17 and repeat the above operation. After the movable light and shadow board 2 absorbs light, it projects a 3D light and shadow effect. Children can observe the changes in light and shadow after different patterns are stacked.
[0051] Game 3: Light and Shadow Traces 1. The children select the rotating light and shadow board 3 and place it on the table. They then take a matching perforated circular piece 20 and place it flat on the rotating disk 32. A strong flashlight 15 shines on the perforated circular piece 20 on the rotating disk 32, allowing strong light to pass through the perforated pattern and project onto the photoluminescent film 5. The rotating disk 32 is then manually rotated. As the disk 32 rotates, the perforated circular piece 20 rotates accordingly, and the light and shadow of the perforated pattern will sequentially fall onto the photoluminescent film 5. Afterward, the perforated circular piece 20 is removed, and the photoluminescent film 5 is no longer illuminated. By controlling the rotation speed of the rotating disk 32, the children control the persistence of vision and understand the principle of dynamic imaging.
[0052] This invention allows children to understand the basic principles and forms of light and shadow through observation, operation, and experimentation. Through hands-on experience, children can build the logical relationship of "light source-object-shadow" and gradually form a pre-scientific concept of optical phenomena.
[0053] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.
Claims
1. A teaching tool for light and shadow games, characterized in that, It includes a fixed light and shadow panel (1), a movable light and shadow panel (2), a rotating light and shadow panel (3), and auxiliary tools. The fixed light and shadow panel (1) includes a picture frame (4) and a light-gathering film (5) laid in the picture frame (4). The movable light and shadow panel (2) has the same structure as the fixed light and shadow panel (1), but the size of the movable light and shadow panel (2) is smaller than that of the fixed light and shadow panel (1). The rotating light and shadow panel (3) includes a fixed disk (31), a rotating disk (32), and a light-gathering film (5). The rotating disk (32) is rotatably connected above the fixed disk (31), and the light-gathering film (5) is disposed above the rotating disk (32). The auxiliary tools include a flashlight (15), a prism (16), a hollow square piece (17), a character insert piece (18), and a color filter (19) used in conjunction with the moving light and shadow panel (2), as well as a hollow circular piece (20) used in conjunction with the rotating light and shadow panel (3).
2. The light and shadow game teaching tool according to claim 1, characterized in that, It also includes a movable platform (6), which includes a drawer cabinet (7) and movable wheels (8) located at the lower corner of the drawer cabinet (7). The fixed light and shadow panel (1) is provided on one side of the drawer cabinet (7), and the movable light and shadow panel (2) is provided above the drawer cabinet (7). The movable light and shadow panel (2) and the fixed light and shadow panel (1) are arranged in parallel at intervals. The rotating light and shadow panel (3) and auxiliary tools are provided inside the drawer cabinet (7).
3. The light and shadow game teaching tool according to claim 2, characterized in that, The drawer cabinet (7) extends outward from one side to form a placement platform (9). The placement platform (9) has a cross-section in the shape of "[". The fixed light and shadow plate (1) is arranged on the placement platform (9). Multiple lower limit blocks (10) are also provided on both sides and in the middle of the placement platform (9). The fixed light and shadow plate (1) is snapped between the lower limit block (10) and the drawer cabinet (7).
4. The light and shadow game teaching aid according to claim 3, characterized in that, The placement platform (9) is also threaded with a hand-tightening bolt (11) on both sides. The hand-tightening bolt (11) passes through the placement platform (9) and is inserted into the edge of the fixed light and shadow plate (1).
5. The light and shadow game teaching aid according to claim 2, characterized in that, The drawer cabinet (7) is symmetrically provided with limit plates (12) on both sides above. At least two movable light and shadow plates (2) are engaged between the two limit plates (12). The at least two movable light and shadow plates (2) are arranged on the same straight line and abut against each other. The height of the movable light and shadow panel (2) is less than that of the fixed light and shadow panel (1), and the width of the movable light and shadow panel (2) is less than that of the fixed light and shadow panel (1).
6. The light and shadow game teaching aid according to claim 5, characterized in that, Each of the limiting plates (12) is threaded with a hand-tightening bolt (13), which passes through the limiting plate (12) and abuts against the edge of the movable light and shadow plate (2), causing at least two movable light and shadow plates (2) to move closer to each other.
7. The light and shadow game teaching aid according to claim 2, characterized in that, The rotating light and shadow panel (3) is arranged inside the drawer (71) of the drawer cabinet (7). A manual turntable (14) is provided between the fixed plate (31) and the rotating plate (32). The upper surface of the rotating plate (32) is flat or umbrella-shaped.
8. The light and shadow game teaching aid according to claim 2, characterized in that, The flashlight (15), prism (16), character insert (18), color filter (19), and hollowed-out circular piece (20) are all arranged in the drawer (71) of the drawer cabinet (7); The flashlight (15) includes a high-intensity flashlight (15) and red, blue and green flashlights (15); the character insert (18) is a cartoon character card, and there are multiple character inserts (18), each character insert (18) is attached with a handheld rod (181); the color filter (19) includes red, green and blue filters; there are multiple hollowed-out circular pieces (20), and the hollowed-out patterns on the multiple hollowed-out circular pieces (20) are different.
9. The light and shadow game teaching aid according to claim 2, characterized in that, The number of the hollow square pieces (17) is multiple, and the hollow patterns on the multiple hollow square pieces (17) are different. The hollow square pieces (17) are arranged on the drawer cabinet (7) between the movable light and shadow plate (2) and the fixed light and shadow plate (1).
Citation Information
Patent Citations
Light and shadow mirror image teaching desk
CN214230376U