Design method of continuous-tone color palette and superimposed color palette of multi-layer color superposition

Abstract

This invention discloses a multi-layered continuous color swatch and a design method for the multi-layered color swatch. The multi-layered continuous color swatch includes a positioning plate, multi-layered color swatches embedded in the positioning plate's mounting holes, and an observation plate that can slide and cover the surface of the positioning plate. The positioning plate has X-axis and Y-axis coordinate scale lines facing the mounting holes. The observation holes on the observation plate can be aligned with any position of the multi-layered color swatches. The multi-layered color swatch includes at least two color swatches, each layer of which is combined and layered using the same or different colors and transparency. Different layering effects are achieved by varying the number of layers and the thickness of each layer. The design method for the multi-layered color swatch involves first designing a first wedge block, then attaching a second wedge block to the first wedge block to form a cuboid structure. After obliquely cutting the cuboid into wedge structures using a bevel, a third wedge block is then attached to form a cuboid multi-layered color swatch. This invention is convenient to use and facilitates quick and accurate color selection.

Description

Technical Field

[0001] This invention relates to a color swatch, and more particularly to a multi-layered continuous color swatch and a method for designing a multi-layered color swatch. Background Technology

[0002] In the field of dental clinical restoration, resin teeth are widely used. To achieve a realistic color, luster, and translucency of the dentures, resin teeth are made by layering multiple layers of resin materials of different colors and translucencies. For dental designers, once the tooth shape is determined, how to represent the overall color, luster, and translucency of the tooth depends not only on the color, luster, and translucency of each layer of resin material used, but also on the thickness of each layer.

[0003] Taking three-layer resin teeth as an example, the challenge lies in how dental layer designers can anticipate the different visual effects of the teeth caused by the different thicknesses of the three layers.

[0004] Although there are standard tooth shade guides in the dental industry, they are only used by dentists to select the color of dentures for patients. They are almost useless for dental designers to design new teeth because the shape and thickness of the teeth on these shade guides are completely different from the shape and thickness of the newly designed teeth. The resin color used by the shade guide manufacturer is also completely different from that used by the tooth manufacturer.

[0005] The traditional approach is to make as many resin swatches as possible with different thicknesses, stack three different colors, transparency and thicknesses of swatches and then let the designer choose the color. This requires making a lot (almost countless) of swatches with different thicknesses. In addition, the swatches cannot be completely glued together, so the visual effect of stacking them together is not good. Summary of the Invention

[0006] To overcome the above deficiencies, the present invention provides a multi-layered color plate and a design method for a multi-layered color plate. When the total thickness of the multi-layered color plate is limited, only one color plate is needed to obtain the color required for the design, and the color selection is accurate.

[0007] The technical solution adopted by this invention to solve its technical problem is: a multi-layered continuous color plate, including a positioning plate, an observation plate, and stacked color plates. The positioning plate has a hollowed-out embedding hole, in which the stacked color plates can be fixedly embedded. One side surface of the positioning plate has X-axis coordinate scale lines and Y-axis coordinate scale lines extending vertically, respectively, and the X-axis coordinate scale lines and Y-axis coordinate scale lines are respectively directly opposite two mutually perpendicular sidewalls of the embedding hole. The observation plate covers one side surface of the positioning plate and can slide arbitrarily on one side surface of the positioning plate. The observation plate has a hollowed-out observation hole, which can be directly opposite any position on one side surface of the stacked color plates. The stacked color plate includes at least two layers of color plates, and each layer of color plates has a different color, different transparency, or both different color and transparency. The thickness of each layer of color plates is different in different parts. The layers of color plates are stacked together to form a stacked color plate. The number of layers of color plates in different parts of the stacked color plate is different, and the thickness of each layer of color plates in different parts of the stacked color plate is also different.

[0008] As a further improvement of the present invention, the laminated color plate is a square plate structure with the same length along the X-axis and the same length along the Y-axis.

[0009] As a further improvement of the present invention, the stacked color slab includes an upper color slab, a middle color slab, and a bottom color slab. The stacking direction of each layer of the stacked color slab is vertical. The upper surface of the upper color slab is horizontal, and the lower surface of the upper color slab has a first inclined surface with a height greater than the height of the other end along the Y-axis. The lower surface of the bottom color slab is horizontal, and the upper surface of the bottom color slab is divided into a left region and a right region along the X-axis. The left region has a second inclined surface with a height less than the height of the other end along the Y-axis. The second inclined surface is joined and bonded to the first inclined surface. The right region has a third inclined surface with a boundary line height greater than the height of the corner point directly opposite the boundary line. The lower surface of the middle color slab has a fourth inclined surface, and the upper surface of the middle color slab has a fifth inclined surface. The fourth inclined surface is joined and bonded to the third inclined surface, and the fifth inclined surface is aligned with the second inclined surface and joined and bonded to the first inclined surface.

[0010] As a further improvement of the present invention, the lower side of the upper color plate is provided with a first horizontal plane parallel to the upper surface along the Y-axis at one end, the upper side of the left side region of the bottom color plate is provided with a second horizontal plane parallel to the lower surface along the Y-axis at the other end, the upper side of the middle color plate is provided with a third horizontal plane along the Y-axis at the other end, and the lower side of the middle color plate is provided with a fourth horizontal plane along the X-axis at the other end. The first horizontal plane and the fourth horizontal plane are aligned with the lower surface of the bottom color plate and spliced ​​together to form the lower side of the stacked color plate, and the second horizontal plane, the third horizontal plane and the upper surface of the upper color plate are aligned with the upper surface of the upper color plate and spliced ​​together to form the upper side of the stacked color plate.

[0011] As a further improvement of the present invention, the boundary line between the right and left regions of the bottom color plate is located exactly on the diagonal line of the stacked color plate.

[0012] As a further improvement of the present invention, a background plate formed by a light guide plate or a black plate and an LED flat panel light are also provided. The background plate is fixedly disposed on the other side of the positioning plate and completely covers the other side surface of the stacked color plate. The LED flat panel light is fixedly installed on the side surface of the background plate facing away from the stacked color plate and can emit uniform backlight towards the background plate.

[0013] As a further improvement of the present invention, a frame with a frame structure is provided, the background plate is fixedly installed on the lower side of the frame, the positioning plate is embedded in the frame structure of the frame, the positioning plate stops on the upper side of the background plate, the outer side wall of the observation plate stops on the inner side wall of the frame structure of the frame, and at least three support feet are fixedly provided evenly at intervals on the lower side of the frame.

[0014] As a further improvement of the present invention, the frame structure is provided with X-axis scale values ​​and Y-axis scale values ​​on the upper side, which correspond to the X-axis coordinate scale lines and Y-axis coordinate scale lines on the positioning plate. The observation plate is also provided with X-axis scale guide lines and Y-axis scale guide lines that are directly opposite to the side wall of the observation hole along the X-axis direction and the side wall along the Y-axis direction.

[0015] As a further improvement of the present invention, the positioning plate is also provided with a reference positioning hole on its corner, so that the reference object for color comparison can be stopped and positioned in the reference positioning hole.

[0016] A method for designing a multi-layered color palette includes the following steps:

[0017] Step 1: Make the first wedge block with a cross-section of a right triangle or a right trapezoid. The thicker end of the first wedge block is rectangular, and the thinner end of the first wedge block is rectangular or a straight line segment.

[0018] Step 2: Attach a second wedge block symmetrical to the first wedge block onto the inclined surface of the first wedge block. The first and second wedge blocks are then joined to form a cuboid structure.

[0019] Step 3: Use an inclined plane to bevel the cuboid formed by splicing the first wedge block and the second wedge block, removing the portion of the first and second wedge blocks located on one side of the first inclined plane. The portions of the first and second wedge blocks located on the other side of the first inclined plane are then spliced ​​to form a combined wedge block structure with a cross-section of a right triangle or a right trapezoid. The remaining portion of the first wedge block after being divided forms the lower color plate, and the remaining portion of the second wedge block after being divided forms the middle color plate. The diagonal lines formed by the intersection of the inclined plane and the cuboid are located on the thicker end of the first and second wedge blocks, respectively.

[0020] Step 4: Create a third wedge block with a cross-section of a right triangle or a right trapezoid. The third wedge block, together with the middle and lower color plates, forms a cuboid structure. The third wedge block is the upper color plate.

[0021] The beneficial effects of this invention are as follows: This invention forms a stacked color slab of fixed thickness by stacking color slabs with different colors and transparency. The varying thickness of the different color slabs at different positions results in different visual effects at different locations on the stacked color slab. An observation plate slides on a positioning plate, aligning its observation holes with different positions on the stacked color slab. After selecting a color by observing different positions on the stacked color slab through the observation holes, the position of the selected color on the stacked color slab can be quickly determined based on the X-axis and Y-axis coordinate scales on the positioning plate. This allows for the acquisition of the thickness data of each layer of color slab on the stacked color slab. When the total thickness of the stacked color slab is limited, only one stacked color slab is needed. The invention extracts the required colors for the design and obtains the thickness of each layer of material in that area for layered design. In different directions (horizontal, vertical, and diagonal) and along the four sides of the color swatch, the thickness of each layer changes in a regular, incremental manner, perfectly aligning with the color selection process and thought process of layered designers. It also provides guidance for material engineers in color matching. Furthermore, the invention provides an observation hole for viewing the color swatch. This observation hole offers both a black background (simulating the background inside a human mouth) and a backlit background (allowing for clearer observation of the layered details within the color swatch), simulating the visual effect of the color swatch under usage conditions, further improving the accuracy of color selection. Attached Figure Description

[0022] Figure 1 Front view of a three-layer colored resin tooth;

[0023] Figure 2 Right view of a three-layer colored resin tooth;

[0024] Figure 3 for Figure 2 Sectional view along line AA;

[0025] Figure 4 First perspective view of the present invention;

[0026] Figure 5 Second perspective view of the present invention;

[0027] Figure 6 This is an exploded perspective view of the present invention;

[0028] Figure 7 This is a perspective view of the first wedge block in the first design method of the laminated color plate of the present invention;

[0029] Figure 8 This is a perspective view of the first wedge block and the second wedge block assembled in the first design method of the multilayer color plate of the present invention;

[0030] Figure 9 This is a first perspective view of the combined wedge block in the first design method of the laminated color plate of the present invention;

[0031] Figure 10 This is a second perspective view of the combined wedge blocks in the first design method of the laminated color plate of the present invention;

[0032] Figure 11 A first perspective view of a multilayer color plate obtained by the first design method of the multilayer color plate of the present invention;

[0033] Figure 12 This is a second perspective view of the multilayer color plate obtained by the first design method of the multilayer color plate of the present invention.

[0034] Figure 13 This is a first perspective view of a first structure of the laminated color plate of the present invention;

[0035] Figure 14 This is a second perspective view of the first structure of the laminated color plate of the present invention;

[0036] Figure 15 This is a perspective view of the first wedge block in the second design method of the laminated color plate of the present invention;

[0037] Figure 16 This is a perspective view of the first and second wedge blocks joined together in the second design method of the multilayer color plate of the present invention.

[0038] Figure 17 This is a three-dimensional view of the combined wedge block in the second design method of the laminated color plate of the present invention;

[0039] Figure 18 This is a first perspective view of the multilayer color plate obtained by the second design method of the multilayer color plate of the present invention.

[0040] Figure 19 This is a second perspective view of the laminated color plate obtained by the second design method of the laminated color plate of the present invention.

[0041] Figure 20 This is a first perspective view of the second structure of the laminated color plate of the present invention;

[0042] Figure 21 This is a second perspective view of the second structure of the laminated color plate of the present invention;

[0043] Figure 22 This is a third perspective view of the second structure of the laminated color plate of the present invention;

[0044] Figure 23This is a fourth perspective view of the second structure of the laminated color plate of the present invention;

[0045] Figure 24 This is an exploded perspective view of the second structure of the laminated color plate of the present invention;

[0046] Figure 25 This is an exploded front view of the second structure of the laminated color plate of the present invention;

[0047] Figure 26 This is a front view of the second structure of the laminated color plate of the present invention;

[0048] Figure 27 for Figure 26 Cross-sectional view along the KK axis;

[0049] Figure 28 for Figure 26 NN-direction sectional view;

[0050] Figure 29 for Figure 26 WW-direction sectional view;

[0051] Figure 30 This is a front view of the observation panel of the present invention;

[0052] Figure 31 This is a front view of the positioning plate of the present invention. Detailed Implementation

[0053] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0054] Example: A multi-layered continuous color plate includes a positioning plate 1, an observation plate 2, and stacked color plates 3. The positioning plate 1 has a hollowed-out embedding hole 11, into which the stacked color plates 3 can be fixedly embedded. One side surface of the positioning plate 1 has X-axis coordinate scale lines 12 and Y-axis coordinate scale lines 13 extending vertically, respectively, and the X-axis coordinate scale lines 12 and Y-axis coordinate scale lines 13 are respectively opposite to the two mutually perpendicular side walls of the embedding hole 11. The observation plate 2 covers one side surface of the positioning plate 1, and the observation plate 2 can... The observation plate 2 is able to slide freely on one side surface of the positioning plate 1. The observation plate 2 is provided with a hollow observation hole 21, which can be directly opposite any position on one side surface of the stacked color plate 3. The stacked color plate 3 includes at least two layers of color plates, and each layer of color plate has a different color, different transparency, or both different color and transparency. The thickness of each layer of color plate is different in different parts. The layers of color plates are stacked together to form the stacked color plate 3. The number of layers of color plates in different parts of the stacked color plate 3 is different, and the thickness of each layer of color plate in different parts of the stacked color plate 3 is also different.

[0055] The layered color slab 3 is fixed on the positioning plate 1. The colors and transparency of different slabs on the layered color slab 3 are different, and the thickness of different parts of each layer of slab is also different, so that different parts of the layered color slab 3 display different visual effects. By sliding the observation plate 2 on the surface of the positioning plate 1, the observation hole 21 on the observation plate 2 is aligned with different parts of the layered color slab 3. After the designer observes the desired visual effect through the observation hole 21, the corresponding position coordinates on the layered color slab 3 can be obtained through the X-axis coordinate scale line 12 and the Y-axis coordinate scale line 13 on the positioning plate 1, and then the thickness value data of each layer in the layered design can be determined. The thickness of each layer of slab in the layered color slab 3 used in this application is not uniform, but varies. When the total thickness is limited, only one layered color swatch 3 is needed to obtain the desired color, thereby obtaining the thickness of each layer of material in that area. This can be well used for layered design, and color selection is very convenient and quick. There is no need to design too many color swatches of different thicknesses for layering comparison. This application can obtain material layering data that perfectly matches the required visual effect. Moreover, the layers of the layered color swatch 3 are tightly bonded to each other, completely simulating the state after the layered material is formed. The finished product made according to the effect of the layered color swatch 3 will have the same visual effect as the layered color swatch 3, without any obvious error, which greatly improves the visual accuracy of the finished product.

[0056] The laminated color slab 3 is a square plate structure with the same length along the X-axis and the same length along the Y-axis. This shape of the laminated color slab 3 is convenient for manufacturing and color selection. In addition, it can also be other shapes, such as circular plates, rectangular plates, flower-shaped plates, etc., which can be designed by designers as needed.

[0057] The stacked color slab 3 includes an upper color slab 31, a middle color slab 32, and a bottom color slab 33. The stacking direction of each layer of the color slab 3 is vertical. The upper surface of the upper color slab 31 is horizontal, and the lower surface of the upper color slab 31 has a first inclined surface 311 with one end higher than the other along the Y-axis. The lower surface of the bottom color slab 33 is horizontal, and the upper surface of the bottom color slab 33 is divided into a left and a right region along the X-axis. The left region has one end lower than the other along the Y-axis. The second inclined surface 331 is spliced ​​and attached to the first inclined surface. The right region forms a boundary line 333 that intersects with the left region. The height of the boundary line 333 is greater than the height of the corner point directly opposite the boundary line 333. A fourth inclined surface 321 is formed on the lower side of the middle layer color plate 32. A fifth inclined surface 322 is formed on the upper side of the middle layer color plate 32. The fourth inclined surface 321 is spliced ​​and attached to the third inclined surface. The fifth inclined surface 322 is aligned with the second inclined surface and spliced ​​and attached to the first inclined surface.

[0058] Based on the actual manufacturing process of resin teeth, a three-layer resin composite color plate 3 is fabricated. The thicknesses of the upper color plate 31, middle color plate 32, and bottom color plate 33 are not uniform, but rather vary uniformly through an inclined surface. The thicknesses of the upper color plate 31, middle color plate 32, and bottom color plate 33 change in a regular, inverse relationship. Given a fixed thickness of composite color plate 3, the thicknesses of the upper color plate 31, middle color plate 32, and bottom color plate 33 at different locations on composite color plate 3 are all different. Layering designers can specify their desired color area on this composite color plate 3 with continuous color variations. Based on the position of this area on the coordinate system of positioning plate 1, they can find the individual thickness values ​​of the three layers in that area and apply them to their layering design.

[0059] The upper color plate 31 has a first horizontal surface 312 parallel to the upper surface at one end of the lower side along the Y-axis. The lower color plate 33 has a second horizontal surface 334 parallel to the lower surface at the other end of the upper side along the Y-axis in the left side region. The middle color plate 32 has a third horizontal surface 323 at the other end of the upper side along the Y-axis. The middle color plate 32 has a fourth horizontal surface 324 at the other end of the lower side along the X-axis. The first horizontal surface 312 and the fourth horizontal surface 324 are aligned with the lower surface of the lower color plate 33 to form the lower side of the stacked color plate 3. The second horizontal surface 334 and the third horizontal surface 323 are aligned with the upper surface of the upper color plate to form the upper side of the stacked color plate 3.

[0060] This structure results in different numbers of layers and different thicknesses of each layer on different parts of the multilayer color swatch 3. For example, the area where the first horizontal surface 312 of the upper layer color swatch 31 is located represents the visual effect of a single upper layer color swatch 31; the area corresponding to the second horizontal surface 334 on the bottom layer color swatch 33 represents the visual effect of a single bottom layer color swatch 33; the area corresponding to the third horizontal surface 323 and the fourth horizontal surface 324 on the middle layer color swatch 32 represents the visual effect of a single middle layer color swatch 32; the area corresponding to the second inclined surface 331 on the bottom layer color swatch 33 represents the visual effect of the combination of the upper layer color swatch 31 and the bottom layer color swatch 33; and the area directly opposite the third horizontal surface 323 on the middle layer color swatch 32 and the third inclined surface 332 on the bottom layer color swatch 33 represents the visual effect of the combination of the upper layer color swatch 31 and the bottom layer color swatch 33. The visual effect presented by the combination of the waxing and waning of plates 33 is as follows: the position where the fourth horizontal surface 324 on the middle layer color plate 32 and the first inclined surface 311 on the upper layer color plate 31 are directly opposite each other is the visual effect presented by the combination of the waxing and waning of the middle layer color plate 32 and the upper layer color plate 31. The position corresponding to the third inclined surface 332 on the bottom layer color plate 33 is the visual effect presented by the combination of the upper layer color plate 31, the middle layer color plate 32, and the bottom layer color plate 33. The position corresponding to the third inclined surface 332 on the bottom layer color plate 33 can be further divided into: the visual effect presented by the waxing and waning of the upper layer color plate 31, the middle layer color plate 32, and the bottom layer color plate 33, where the thickness of all three changes; and the visual effect presented by the waxing and waning of the upper layer color plate 31 and the middle layer color plate 32, where the thickness of the bottom layer color plate 33 remains unchanged. (e.g.) Figure 27 (As shown); the visual effect presented by the combination of the upper color plate 31 having a constant thickness, and the middle color plate 32 and the bottom color plate 33 having varying thicknesses (as shown); Figure 28 (As shown); the visual effect presented by the combination of the constant thickness of the middle color plate 32 and the changing thickness of the upper color plate 31 and the bottom color plate 33 (as shown); Figure 29 (As shown).

[0061] During the resin tooth fabrication process, the material corresponding to the upper shade 31 is the enamel layer, the material corresponding to the middle shade 32 is the dentin layer, and the material corresponding to the bottom shade 33 is the basal layer. Therefore, the aforementioned stacked shade 3 forms a single enamel layer shade 3, a single dentin layer shade 3, a single basal layer shade 33, a multi-layered shade 3 with varying thicknesses between the enamel and dentin layers, a multi-layered shade 3 with varying thicknesses between the enamel and basal layers, a multi-layered shade 3 with varying thicknesses between the dentin and basal layers, and a multi-layered shade 3 with varying thicknesses between the enamel, dentin, and basal layers. Furthermore, the alternating color effects of the striped layers—only the dentin and basal layers—can be observed. The color effect changes of the strip-shaped base layer and enamel layer after being superimposed can be observed; the color effect changes of the strip-shaped dentin layer and enamel layer after being superimposed can be observed; the color effect of the strip-shaped enamel layer can be observed; the color effect changes of the base layer at a specified thickness caused by changes in the other two layers can be observed; the color effect changes of the enamel layer at a specified thickness caused by changes in the other two layers can be observed; the color effect changes of the dentin layer at a specified thickness caused by changes in the other two layers can be observed. Therefore, this multilayer color swatch 3 can meet the color matching needs of layered designers for any combination of the three color swatches.

[0062] The boundary line 333 between the right and left areas of the bottom color swatch 33 is located precisely on the diagonal of the overlay color swatch 3. This allows each overlay color scheme to occupy sufficient area for overlay color matching. In addition, the boundary line 333 between the right and left areas of the bottom color swatch 33 can also be located in other positions, as long as the above-mentioned combination color matching can be achieved.

[0063] Figure 3 This is a longitudinal section of a three-layered resin tooth. To showcase the unique layering of natural human tooth color, the layered designer divided the entire tooth into three layers. The mold designer then used these three layers as data to design the mold, and the manufacturing department further shaped the tooth by layering them in three stages. Because these three layers of resin material have different colors and a certain degree of transparency, especially the outermost enamel layer which has high transparency, the layered designer had to divide the tooth into layers after the tooth's shape was finalized. The thickness of each layer determined the tooth's appearance, color, luster, transparency, and layering. Before the layered design, the designer had a general expectation of the color characteristics of each area of ​​the tooth, which was derived from the color swatches.

[0064] Therefore, this invention designs a three-layered continuous color swatch, the shape of which is a square plate structure. The multilayered color swatch can be made in several ways depending on the total thickness. Taking teeth as an example, the most prominent teeth are the maxillary central incisors, with a maximum thickness of approximately 6mm. The thickness is thinnest at the incisal edge of the central incisor, typically 2mm. Therefore, five multilayered color swatches of 2mm, 3mm, 4mm, 5mm, and 6mm thickness can be provided to the layer designer. The layer designer can specify the desired color area from the multilayered color swatches of each thickness within these five thickness regions of the tooth's outline, thereby obtaining the thickness data of each layer of material under that area for mesh modeling of the three-layered structure of the tooth. Furthermore, if the layer designer cannot find the desired color on the color swatch, they can submit their color requirements to the materials engineer, modify the colors of the three resin layers, and remake the color swatch.

[0065] The system also includes a background plate 4 formed by a light guide plate or a black plate and an LED flat panel light 5. The background plate 4 is fixedly mounted on the other side of the positioning plate 1 and completely covers the other surface of the stacked color plate 3. The LED flat panel light 5 is fixedly mounted on the surface of the background plate 4 facing away from the stacked color plate 3, and the LED flat panel light 5 can emit uniform backlight towards the background plate 4. The light guide plate is used to provide backlight through the light from the LED flat panel light 5; the black background plate 4 is used to provide a black background. The LED flat panel light 5 is used to provide uniform backlight so that the internal layering details of the color plate can be observed more clearly.

[0066] The system also includes a frame 6 with a frame-like structure. A background plate 4 is fixedly installed on the lower side of the frame 6. A positioning plate 1 is embedded inside the frame-like structure of the frame 6, stopping the upper side of the background plate 4. The outer wall of the observation plate 2 stops the inner wall of the frame-like structure of the frame 6. At least three support feet 7 are evenly spaced and fixed on the lower side of the frame 6. The frame 6 positions the positioning plate 1 and limits the observation plate 2, preventing it from falling. Simultaneously, the support feet 7 ensure the entire mechanism is stably placed on the table for operation, making operation more convenient.

[0067] The frame 6 is also provided with X-axis scale value 61 and Y-axis scale value 62 on the upper side of the frame structure, which correspond to the X-axis coordinate scale line 12 and Y-axis coordinate scale line 13 on the positioning plate 1. The observation plate 2 is also provided with X-axis scale guide line 22 and Y-axis scale guide line 23 that are directly opposite to the side wall of the observation hole 21 along the X-axis direction and the side wall along the Y-axis direction.

[0068] By aligning the X-axis scale guide line 22 and the Y-axis scale guide line 23 with the scale lines on the positioning plate 1, readings can be quickly taken using the X-axis scale value 61 and the Y-axis scale value 62.

[0069] The positioning plate 1 is also provided with reference positioning holes 14 on its corners, so that the reference object for color comparison can be stopped and positioned in the reference positioning holes 14. The reference positioning holes 14 can be four square holes set on opposite corners of the positioning plate 1, which can hold resin teeth for comparison, so as to compare colors with the continuously stacked color plates.

[0070] To facilitate color selection for layered designers, this invention also includes an observation frame for a continuous color swatch. The observation frame comprises a frame, a background plate, a positioning plate, and an observation plate. The background plate is fixedly positioned under the frame, the positioning plate is fixedly positioned inside the frame, and the observation plate covers the positioning plate. The positioning plate fixes and positions the layered color swatches. The background plate provides a black background (which can simulate the background inside a human mouth) or a backlit background (which allows for clearer observation of the layered details inside the color swatches). When the background plate provides a backlit background, an LED flat panel light can be installed under the background plate to provide uniform light to the background plate. An observation hole is provided on the observation plate to define the color selection area of ​​the color swatches. Coordinate indicators corresponding to the color selection area are respectively set on the observation plate, the positioning plate, and the frame. From the coordinate information, the thickness data of the three layered color swatches can be obtained from the 3D data of the layered color swatches.

[0071] To more clearly illustrate the design of the multilayer color swatch, the present invention will be described through the following specific design method.

[0072] A method for designing a multi-layered color palette, the specific steps of which are as follows:

[0073] Step 1: Make a first wedge block 81 with a cross-section of a right triangle or a right trapezoid. The thicker end of the first wedge block 81 is rectangular, and the thinner end of the first wedge block 81 is rectangular or a straight line segment.

[0074] Step 2: A second wedge block 82, symmetrical to the first wedge block 81, is spliced ​​onto the inclined surface of the first wedge block 81. The first wedge block 81 and the second wedge block 82 are spliced ​​together to form a cuboid structure.

[0075] Step 3: Use an inclined plane to bevel the cuboid formed by splicing the first wedge block 81 and the second wedge block 82, removing the portion of the first wedge block 81 and the second wedge block 82 located on one side of the first inclined plane. The portions of the first wedge block 81 and the second wedge block 82 located on the other side of the first inclined plane are spliced ​​to form a combined wedge block structure with a cross-section of a right triangle or a right trapezoid. The remaining portion of the first wedge block 81 after being divided forms the lower color plate (base layer), and the remaining portion of the second wedge block 82 after being divided forms the middle color plate 32 (dentin layer). The oblique lines formed by the intersection of the inclined plane and the cuboid are located on the thicker end of the rectangle of the first wedge block 81 and the second wedge block 82, respectively.

[0076] Step 4: Make a third wedge block with a cross-section of a right triangle or a right trapezoid. The third wedge block, together with the middle layer color plate 32 and the lower layer color plate, forms a cuboid structure. The third wedge block is the upper layer color plate 31 (enamel layer).

Claims

1. A multi-layered continuous color palette, characterized in that: The system includes a positioning plate (1), an observation plate (2), and a multilayer color plate (3). The positioning plate has a hollowed-out embedding hole (11) in which the multilayer color plate can be fixedly embedded. One side surface of the positioning plate has X-axis coordinate scale lines (12) and Y-axis coordinate scale lines (13) extending vertically, respectively, and the X-axis coordinate scale lines and Y-axis coordinate scale lines are respectively directly opposite to the two mutually perpendicular side walls of the embedding hole. The observation plate covers one side surface of the positioning plate and can slide arbitrarily on one side surface of the positioning plate. The observation plate has a hollowed-out observation hole (21) in which it can be directly opposite to any position on one side surface of the multilayer color plate. The multilayer color plate includes at least two layers of color plates, and the colors of each layer of color plates are... The color and transparency are different, and the thickness of each color plate is different in different parts. The color plates are stacked together to form a multilayer color plate. The number of color plates stacked in different parts of the multilayer color plate is different, and the thickness of each color plate in different parts of the multilayer color plate is also different. The multilayer color plate is a square plate structure with the same length along the X-axis and the same length along the Y-axis. The multilayer color plate includes an upper color plate (31), a middle color plate (32), and a bottom color plate (33). The material corresponding to the upper color plate is the enamel layer, the material corresponding to the middle color plate is the dentin layer, and the material corresponding to the bottom color plate is the base layer. Assume that the stacking direction of each color plate in the multilayer color plate is up and down, the upper surface of the upper color plate is a horizontal plane, and the lower surface of the upper color plate has a height at one end along the Y-axis. The first inclined surface (311) is higher than the other end. The lower surface of the bottom color plate is horizontal. The upper part of the bottom color plate is divided into a left area and a right area along the X-axis. The left area forms a second inclined surface (331) with a height at one end less than the other end along the Y-axis. The second inclined surface is spliced ​​and attached to the first inclined surface. The right area forms a third inclined surface (332) with the boundary line of the left area having a height greater than the height of the corner point directly opposite the boundary line (333). The lower side of the middle color plate forms a fourth inclined surface (321). The upper side of the middle color plate forms a fifth inclined surface (322). The fourth inclined surface is spliced ​​and attached to the third inclined surface. The fifth inclined surface is aligned with the second inclined surface and spliced ​​with the first inclined surface. The layers of the stacked color plates are tightly bonded together, completely simulating the state of the layered material after molding. The lower side of the upper color plate is provided with a first horizontal surface (312) parallel to the upper surface along the Y-axis. The upper side of the left side of the bottom color plate is provided with a second horizontal surface (334) parallel to the lower surface along the Y-axis. The upper side of the middle color plate is provided with a third horizontal surface (323) along the Y-axis. The lower side of the middle color plate is provided with a fourth horizontal surface (324) along the X-axis. The first horizontal surface, the fourth horizontal surface and the lower surface of the bottom color plate are aligned and spliced ​​together to form the lower side of the stacked color plate. The second horizontal surface, the third horizontal surface and the upper surface of the upper color plate are aligned and spliced ​​together to form the upper side of the stacked color plate.

2. The multi-layered continuous color plate according to claim 1, characterized in that: The boundary line between the right and left regions of the bottom color swatch is located on the diagonal of the layered color swatch.

3. The multi-layered color superposition continuous color plate according to claim 1, characterized in that: The frame (6) is also provided with a frame structure. The background plate is fixedly installed on the lower side of the frame. The positioning plate is embedded in the frame structure of the frame. The positioning plate stops on the upper side of the background plate. The outer side wall of the observation plate stops on the inner side wall of the frame structure of the frame. At least three support feet (7) are also fixedly provided evenly at intervals on the lower side of the frame.

4. The multi-layered continuous color plate according to claim 3, characterized in that: The frame structure is also provided with X-axis scale value (61) and Y-axis scale value (62) corresponding to the X-axis coordinate scale line and Y-axis coordinate scale line on the positioning plate. The observation plate is also provided with X-axis scale guide line (22) and Y-axis scale guide line (23) directly opposite to the side wall of the observation hole along the X-axis direction and the side wall along the Y-axis direction.

5. The multi-layered continuous color plate according to claim 1, characterized in that: The positioning plate is also provided with a reference positioning hole (14) at the corner, which is used to stop the reference object for color selection and position it in the reference positioning hole.

6. The multi-layered color superposition continuous color plate according to claim 1, characterized in that: It also includes a background plate (4) formed by a light guide plate or a black plate and an LED flat panel light (5). The background plate is fixedly installed on the other side of the positioning plate and completely covers the other side of the stacked color plate. The LED flat panel light is fixedly installed on the side of the background plate facing away from the stacked color plate and can emit uniform backlight towards the background plate.

7. A method for designing a multi-layered color swatch of a continuous color swatch as described in any one of claims 1-6, characterized in that: It includes the following steps: Step 1: Make a first wedge block (81) with a cross-section of a right triangle or a right trapezoid. The thicker end of the first wedge block is rectangular, and the thinner end of the first wedge block is rectangular or a straight line segment. Step 2: On the inclined surface of the first wedge block, a second wedge block (82) symmetrical to it is spliced ​​together, and the first wedge block and the second wedge block are spliced ​​together to form a cuboid structure; Step 3: Use an inclined plane to bevel the cuboid formed by splicing the first wedge block and the second wedge block, removing the portion of the first and second wedge blocks located on one side of the first inclined plane. The portions of the first and second wedge blocks located on the other side of the first inclined plane are then spliced ​​to form a combined wedge block structure with a cross-section of a right triangle or a right trapezoid. The remaining portion of the first wedge block after being divided forms the lower color plate, and the remaining portion of the second wedge block after being divided forms the middle color plate. The diagonal lines formed by the intersection of the inclined plane and the cuboid are located on the thicker end of the first and second wedge blocks, respectively. Step 4: Create a third wedge block with a cross-section of a right triangle or a right trapezoid. The third wedge block, together with the middle and lower color plates, forms a cuboid structure. The third wedge block is the upper color plate.

Images