Demonstration device for displaying color constancy principle

Abstract

The utility model relates to a demonstration device based on a color constancy principle, and belongs to visual color science popularization education devices. The demonstration device based on the color constancy principle comprises an exhibition stand, a sliding rail device, a fixing frame, a first sliding frame and a second sliding frame. The first sliding frame slides to the rightmost end to be overlapped with the cherry picture, and the blue-green light filter only allows the blue light and the green light to pass through and filters the red light; the color actually presented by the cherries on the fused cherry picture passing through the blue-green optical filter is gray; due to the fact that visual cognition of human eyes has color constancy, when color light irradiating the surface of an object changes, people still have the invariable perceptual characteristic about the color of the surface of the object. Although the color actually presented by the cherries on the cherry picture fused by the blue-green optical filter is gray, the cherries still present red in human eyes. And when the second sliding frame slides from the rightmost end to the leftmost end, the gray cherry model is fused into the cherry picture to become red cherries. The color change of the cherry model is not the color change of the cherry model, but the color constancy principle of visual cognition of human eyes is used, and the gray cherries are recognized to be red. The color of a real object is changed in an interaction mode, audiences can truly and vividly experience human eye visual color constancy, scientificity and interestingness are increased, and the situation that the demonstration device lacks is made up.

Description

Technical Field

[0001] This design relates to the technical field of application of the principle of color constancy in human visual perception, and in particular to a demonstration device for displaying the principle of color constancy, which belongs to the category of visual color science popularization and education devices. Background Art

[0002] Humans have a psychological tendency to judge the color of a particular object without changing due to light sources or external environmental factors. This tendency is called color constancy. For a particular object, the reflectance spectrum of the object's surface will be different due to changes in the environment (especially the lighting environment). The human visual recognition system can recognize this change and determine that the change is caused by changes in the lighting environment. When the lighting changes within a certain range, the human recognition mechanism will believe that the color of the object's surface is constant within this range.

[0003] The constancy of color perception is closely related to people's life experience. A person who has never seen a red flag due to an eye disease may determine that it is red when he sees it for the first time in the light after recovery. However, if he sees the red flag for the first time in the dark, he may not perceive it as red. Therefore, color constancy refers to people's perception of the color of an object, which is related to people's knowledge, experience, and psychological tendencies, and does not refer to the constancy of the color of the object itself. The present invention vividly demonstrates the principle of color constancy of human vision in an interactive form, making up for the shortcomings of such interactive devices. Summary of the invention

[0004] The purpose of the present invention is to provide a display device for observing the principle of color constancy of human vision more intuitively and vividly.

[0005] The technical solution described in the present invention is a demonstration device based on the principle of color constancy, which includes an exhibition stand, a slide rail device, a fixed frame, a first slide, and a second slide, wherein the rear end of the exhibition stand is provided with a back panel, and a first movable groove and a second movable groove are provided in the horizontal direction of the desktop, the slide rail device is located inside the exhibition stand and is fixedly connected to the exhibition stand by screws; the fixed frame is located at the right end of the exhibition stand, is horizontally collinear with the first movable groove, is fixedly connected to the desktop of the exhibition stand by screws, and overlaps with the center of the fixed frame when the second slide slides to the rightmost end; the bottom end of the first slide is connected to the first slide rail of the slide rail device, passes through the first movable groove, and slides horizontally in the first movable groove; the bottom end of the second slide is connected to the second slide rail of the slide rail device, passes through the second movable groove, and slides horizontally in the second movable groove; the first slide slides to the rightmost end, the second slide moves to the leftmost end, and the centers of the first slide, the second slide and the background board picture overlap.

[0006] The main structure of the booth is made of metal material, the tabletop is made of artificial stone material, a first moving groove and a second moving groove are provided in the horizontal direction of the tabletop, and a background board is provided at the rear of the booth.

[0007] The first movable groove passes through the desktop of the booth.

[0008] The second moving groove passes through the tabletop of the booth and is parallel to the first moving groove.

[0009] The background board is vertically connected to the rear of the exhibition stand, parallel to the first moving groove and the second moving groove, and a picture of red cherries is printed at the center.

[0010] Wherein, the slide rail device structure includes a bracket, a first slide rail, and a second slide rail.

[0011] The bracket is made of metal material as a whole.

[0012] The first slide rail is located directly below the first moving groove, and limiting devices are arranged at both ends, and the limiting distance is slightly smaller than the length of the first moving groove.

[0013] The second slide rail is located directly below the second movable groove, and limiting devices are arranged at both ends, and the limiting distance is slightly smaller than the length of the second movable groove.

[0014] Among them, the fixing frame is made of metal material as a whole, the top is a circular back plate, and the whole is sprayed with gray painting. The RGB value of this gray is the RGB value after the blue-green filter and the red color of the cherry picture are merged.

[0015] The first slide frame is made of metal material as a whole, with a first base at the bottom and a circular clamp at the top, with a blue-green filter sandwiched in the middle.

[0016] Wherein, the second slide structure includes a second base, a connecting rod, and a cherry model.

[0017] The second base is made entirely of metal material.

[0018] The connecting rod is made of hard transparent material.

[0019] The cherry model is sprayed with gray painting as a whole, and the RGB value is the same as the RGB value of the gray painting on the circular back panel at the top of the fixing frame.

[0020] Beneficial effects of the present invention: when the audience operates the device, the first slide slides to the leftmost end, the second slide slides to the rightmost end, and the cherry in the cherry picture on the background board is observed to be red; the cherry model of the second slide and the circular back plate of the fixed frame are gray. When the first slide slides to the rightmost end, it overlaps with the cherry picture, because the blue-green filter only allows blue light and green light to pass through, and filters out red light; therefore, the actual color of the cherry on the cherry picture fused by the blue-green filter is gray; because the human eye visual cognition has color constancy, that is, when the color light irradiating the surface of an object changes, people's perception of the color of the surface of the object remains unchanged. Although the actual color of the cherry on the cherry picture after fusion by the blue-green filter is gray, the cherry still appears red in the human eye. When the second slide slides from the rightmost end to the leftmost end, it will be found that the gray cherry model is integrated into the cherry picture and "changed" into a red cherry. This is not because the color of the cherry model has changed, but the color constancy principle of human eye visual cognition, which recognizes the gray cherry as "red". By sliding the first slide and the second slide left and right, a variety of position relationship combinations can be formed, and the color "change" of the cherry model can be observed. Using this interactive operation form, the principle of color constancy can be vividly understood, which makes up for the lack of such demonstration devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of a demonstration device based on the principle of color constancy.

[0022] Figure 2 Schematic diagram of the slide rail device.

[0023] Figure 3 Schematic diagram of the first slide.

[0024] Figure 4 Schematic diagram of the second slide.

[0025] Among them, 1. exhibition stand, 11. background board, 12. first moving groove, 13. second moving groove; 2. slide rail device, 21. bracket, 22. first slide rail, 23. second slide rail; 3. fixed frame; 4. first slide frame, 41. first base, 42. circular clamp, 43 blue-green filter; 5. second slide frame, 51. second base, 52 connecting rod, 53. cherry model. DETAILED DESCRIPTION

[0026] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1As shown, a demonstration device based on the principle of color constancy comprises a booth, a slide rail device, a fixed frame, a first slide frame, and a second slide frame, wherein a back panel is provided at the rear end of the booth, a first movable groove and a second movable groove are provided in the horizontal direction of the desktop, the slide rail device is located inside the booth, and is fixedly connected to the booth by screws; the fixed frame is located at the right end of the booth, is horizontally collinear with the first movable groove, and is fixedly connected to the desktop of the booth by screws, and the second slide frame overlaps with the center of the fixed frame when it slides to the rightmost end; the bottom end of the first slide frame is connected to the first slide rail of the slide rail device, passes through the first movable groove, and slides horizontally in the first movable groove; the bottom end of the second slide frame is connected to the second slide rail of the slide rail device, passes through the second movable groove, and slides horizontally in the second movable groove; the first slide frame slides to the rightmost end, the second slide frame moves to the leftmost end, and the centers of the first slide frame, the second slide frame and the background board picture overlap.

[0028] The main structure of the booth is made of metal material, the tabletop is made of artificial stone material, a first moving groove and a second moving groove are provided in the horizontal direction of the tabletop, and a background board is provided at the rear of the booth.

[0029] The first movable groove passes through the desktop of the booth.

[0030] The second moving groove passes through the tabletop of the booth and is parallel to the first moving groove.

[0031] The background board is vertically connected to the rear of the exhibition stand, parallel to the first moving groove and the second moving groove, and a picture of red cherries is printed at the center.

[0032] like Figure 2 As shown, the slide rail device structure includes a bracket, a first slide rail, and a second slide rail.

[0033] The bracket is made of metal material as a whole.

[0034] The first slide rail is located directly below the first moving groove, and limiting devices are arranged at both ends, and the limiting distance is slightly smaller than the length of the first moving groove.

[0035] The second slide rail is located directly below the second movable groove, and limiting devices are arranged at both ends, and the limiting distance is slightly smaller than the length of the second movable groove.

[0036] Among them, the fixing frame is made of metal material as a whole, the top is a circular back plate, and the whole is sprayed with gray painting. The RGB value of this gray is the RGB value after the blue-green filter and the red color of the cherry picture are merged.

[0037] like Figure 3 As shown, the first slide frame is made of metal material as a whole, the bottom end is a first base, the top end is a circular clamp, and a blue-green filter is sandwiched in the middle.

[0038] like Figure 4 As shown, the second slide structure includes a second base, a connecting rod, and a cherry model.

[0039] The second base is made entirely of metal material.

[0040] The connecting rod is made of hard transparent material.

[0041] The cherry model is sprayed with gray painting as a whole, and the RGB value is the same as the RGB value of the gray painting on the circular back panel at the top of the fixing frame.

[0042] Specific implementation case 1: When the audience operates the device, slide the first slide to the far left, slide the second slide to the far right, and observe that the cherries in the cherry picture on the background board are red; the cherry model of the second slide and the circular back plate of the fixed frame are gray. Slide the first slide to the far right, overlapping with the cherry picture, because the blue-green filter only allows blue light and green light to pass through, and filters out red light; so the actual color of the cherries on the cherry picture fused by the blue-green filter is gray; because the human eye visual cognition has color constancy, that is, when the color light irradiating the surface of an object changes, people's perception of the color of the surface of the object remains unchanged. Although the actual color of the cherries on the cherry picture after fusion by the blue-green filter is gray, the cherries still appear red in the human eye. Slide the second slide from the far right to the far left, and you will find that the gray cherry model is integrated into the cherry picture and "turns into" a red cherry. This is not because the color of the cherry model has changed, but the color constancy principle of human eye visual cognition, which recognizes the gray cherry as "red". By sliding the first slide and the second slide left and right, a variety of position relationship combinations can be formed to observe the color "change" of the cherry model.

[0043] The present invention changes the color of a real object in an interactive form, allowing the audience to experience the color constancy of human vision in a real and vivid way, thereby increasing the scientificity and interest and making up for the lack of such demonstration devices.

Claims

1. A demonstration device for demonstrating the principle of color constancy, characterized in that: A demonstration device based on the principle of color constancy comprises a booth, a slide rail device, a fixed frame, a first slide frame, and a second slide frame, wherein a back panel is provided at the rear end of the booth, a first movable groove and a second movable groove are provided in the horizontal direction of the desktop, the slide rail device is located inside the booth, and is fixedly connected to the booth by screws; the fixed frame is located at the right end of the booth, is horizontally collinear with the first movable groove, and is fixedly connected to the desktop of the booth by screws, and the second slide frame overlaps with the center of the fixed frame when sliding to the rightmost end; the bottom end of the first slide frame is connected to the first slide rail of the slide rail device, passes through the first movable groove, and slides horizontally in the first movable groove; the bottom end of the second slide frame is connected to the second slide rail of the slide rail device, passes through the second movable groove, and slides horizontally in the second movable groove; the first slide frame slides to the rightmost end, the second slide frame moves to the leftmost end, and the centers of the first slide frame, the second slide frame and the background board picture overlap.

2. A demonstration device for demonstrating the principle of color constancy according to claim 1, characterized in that The main structure of the booth is made of metal material, the tabletop is made of artificial stone material, and a first moving groove and a second moving groove are provided in the horizontal direction of the tabletop; a background board is provided at the rear of the booth; The first movable groove runs through the tabletop of the booth; The second moving groove passes through the tabletop of the booth and is parallel to the first moving groove; The background board is vertically connected to the rear of the exhibition stand, parallel to the first moving groove and the second moving groove, and a picture of red cherries is printed at the center.

3. A demonstration device for demonstrating the principle of color constancy according to claim 1, characterized in that The slide rail device structure comprises a bracket, a first slide rail, and a second slide rail; The bracket is made of metal material as a whole; The first slide rail is located directly below the first moving groove, and limit devices are provided at both ends, and the limit distance is slightly smaller than the length of the first moving groove; The second slide rail is located directly below the second movable groove, and limiting devices are arranged at both ends, and the limiting distance is slightly smaller than the length of the second movable groove.

4. A demonstration device for demonstrating the principle of color constancy according to claim 1, characterized in that The fixing frame is made of metal material as a whole, with a circular back plate on the top, and is spray-painted gray as a whole. The RGB value of this gray is the RGB value after the blue-green filter and the red color of the cherry picture are merged.

5. A demonstration device for demonstrating the principle of color constancy according to claim 1, characterized in that The first slide frame is made of metal material as a whole, the bottom end is a first base, the top end is a circular clamp, and a blue-green filter is sandwiched in the middle.

6. A demonstration device for demonstrating the principle of color constancy according to claim 1, characterized in that The second slide structure includes a second base, a connecting rod, and a cherry model; The second base is entirely made of metal material; The connecting rod is made of hard transparent material; The cherry model is sprayed with gray painting as a whole, and the RGB value is the same as the RGB value of the gray painting on the circular back panel at the top of the fixing frame.

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