Vision inspection lighting device using color contrast and control system for vehicle exterior vision inspection using same

Abstract

The present invention relates to a vision inspection lighting device using color contrast and a vehicle exterior vision inspection system using same. The vision inspection lighting device, which inspects a surface defect of a vehicle exterior by irradiating the vehicle exterior with light, includes a plurality of lighting modules each provided with light sources in forward and backward directions to radiate light. The plurality of lighting modules are arranged side by side in a lateral direction, so that the radiated light forms a stripe shape on the vehicle exterior.

Description

Lighting device for vision inspection using color contrast and control system for vehicle exterior vision inspection using the same

[0001] The present invention relates to a lighting device for vision inspection using color contrast and a control system for vision inspection of the exterior of a vehicle using the same, and more specifically, to a lighting device for vision inspection using color contrast that irradiates light onto the exterior of a vehicle and inspects the paint condition or damage of the exterior of the vehicle through a light distortion phenomenon, and a control system for vision inspection of the exterior of a vehicle using the same.

[0002]

[0003] Typically, vehicles undergo an inspection process during the production process to check for defects such as dents or scratches on the paint surface of the vehicle body. As part of the inspection process, light can be optically illuminated on the vehicle body surface to check for patterns resulting from light distortion with the naked eye or equipment.

[0004] The light irradiated onto the surface of the vehicle body is irradiated through a lighting device. In this case, a single lighting device can be installed on one side of the vehicle body, and it is also possible to install the lighting device in a tunnel shape to surround the vehicle body.

[0005] As a prior art related to this, a vehicle surface quality inspection system is disclosed in Korean Patent No. 10-2495501, and the above prior art shows a structure in which a lighting device is placed in a tunnel shape and then light is irradiated onto the vehicle surface while the vehicle is moved.

[0006] However, the lighting device applied to the above prior art has a problem in that the light source, such as an incandescent bulb, fluorescent lamp, or LED, is directly exposed toward the vehicle body, causing a light scattering phenomenon, the distortion pattern of light reflected from the vehicle body has a low precision, and it is difficult to precisely inspect defects on the vehicle body surface because light of a single color or intensity is irradiated.

[0007] More specifically, Fig. 1 shows a conventional lighting device including the above prior art (a) and a state (b) in which a light distortion pattern is formed when light is irradiated onto a vehicle body through the above lighting device. As shown in Fig. 1 (a), light from a lamp, etc., is diffused to the surroundings, and as shown in Fig. 1 (b), in order to increase the clarity of the distortion pattern on the vehicle body, not only must the lamp be maintained at a high illuminance, but also the precision of the distortion pattern is low, making it difficult to perform more precise surface inspection. In addition, since light of a single color or intensity is irradiated, it is difficult to discern with the naked eye, and the precision is further reduced when photographing with a device such as a camera. In addition, since the effectiveness of surface defect inspection can be ensured only when the vehicle is moved during inspection, there is a problem in that additional equipment for moving the vehicle must be installed.

[0008]

[0009] The purpose of the present invention, which was invented in consideration of the above points, is to provide a vision inspection lighting device using color contrast, which can more easily and accurately perform vehicle inspection by more easily identifying the clarity and precision of distortion patterns through contrast by irradiating light of different colors or intensities, and a vehicle exterior vision inspection control system using the same.

[0010] In addition, the purpose of the present invention is to provide a vision inspection lighting device using color contrast that enables automation of more precise and reliable vehicle inspection by securing a wide range of sample data of light reflected from the exterior of a vehicle through various color combinations such as complementary colors and color temperatures, and a vehicle exterior vision inspection control system using the same.

[0011]

[0012] According to one embodiment of the present invention for achieving the above object, a vision inspection lighting device using color contrast is a vision inspection lighting device that irradiates light onto the exterior of a vehicle to inspect surface defects of the exterior of the vehicle, the vision inspection lighting device includes a plurality of lighting modules that are provided with light sources in the front-rear direction and irradiate light, and the plurality of lighting modules are arranged in parallel in the left-right direction so that the irradiated light forms a stripe shape on the exterior of the vehicle.

[0013] In addition, the present invention further includes a control means for controlling a light source, and the control means can independently control the light intensity or wavelength of the light sources provided in the plurality of lighting modules.

[0014] Additionally, any one of the plurality of lighting modules may be independently detachable from the vision inspection lighting device.

[0015] In addition, the lighting module includes a housing in which the light source is accommodated and an open surface is formed on one side of the left and right directions and a blocking plate is provided on the other side, and the open surface of the lighting module can be blocked by a blocking plate of another lighting module adjacent to the lighting module.

[0016] Additionally, the blocking plate may protrude outwardly from the housing along the forward and backward directions to improve the concentration of light emitted from the light source.

[0017] In addition, the control means may control light irradiated from some of the plurality of lighting modules to a first value, control light irradiated from other some to a second value, and at least one lighting module irradiating light of the second value may be provided between the lighting modules irradiating light of the first value based on the left and right direction, so that the light of the first value and the light of the second value alternate overall.

[0018] In addition, at least one of the alternating first or second value lights may be irradiated by two or more consecutive lighting modules, and the width of the first or second value light may be adjusted according to the number of consecutive lighting modules.

[0019] In addition, the control means may include a brightness control mode for controlling the first value or the second value so that light is not irradiated, and a color control mode for controlling the first value and the second value so that they have different wavelength ranges.

[0020] Additionally, the color control mode can be controlled so that the first value and the second value have complementary wavelengths.

[0021] In addition, a vehicle exterior vision inspection control system using a vision inspection lighting device using color contrast according to one embodiment of the present invention includes a photographing means for photographing a light stripe shape formed on the exterior of a vehicle and a storage means for storing data photographed from the photographing means, and the control means can control to form a light stripe shape set from the first value and the second value, and then control to form a reset light stripe shape by resetting the first value and the second value.

[0022] Additionally, the system may further include an analysis means for analyzing defects in the vehicle's exterior based on data stored in the storage means.

[0023]

[0024] According to one embodiment of the present invention, light of different colors or intensities is irradiated to enable more precise and clear defect inspection through color contrast on the vehicle surface.

[0025] In addition, by controlling the light of each of the multiple lighting modules to selectively adjust the color and intensity, usability and precision are improved, and by controlling the light without moving the vehicle, various combinations of light color and intensity can be irradiated onto the vehicle surface, making it easy to secure various data samples, and it is also easier to identify defects using devices such as the naked eye and cameras.

[0026] In addition, there is an advantage in that it is easy to derive a light combination optimized for detecting vehicle surface defects by reflecting the color or environment of the vehicle surface through the brightness control mode or color control mode.

[0027] Additionally, there is an advantage in that it can automate vehicle surface defect inspection by securing various data samples.

[0028]

[0029] Figure 1 is an operating state diagram showing the operating state of the prior art.

[0030] Figure 2 is an exploded view showing a disassembled state of a lighting module according to one embodiment of the present invention.

[0031] Fig. 3 is a combination diagram showing the combination state of a lighting module according to one embodiment of the present invention.

[0032] Figure 4 is an exploded view showing a process of combining multiple lighting modules according to one embodiment of the present invention.

[0033] Fig. 5 is a combined state diagram showing a state in which multiple lighting modules are combined according to one embodiment of the present invention.

[0034] Figure 6 is a conceptual diagram showing the control operation of a lighting device according to one embodiment of the present invention.

[0035] Fig. 7 is an operation state diagram showing the operation state according to the control modes of a lighting device according to one embodiment of the present invention.

[0036] Fig. 8 is a state diagram showing vehicle inspection using a lighting device according to one embodiment of the present invention.

[0037] FIG. 9 is a reference diagram explaining the wavelength and complementary color of light applicable to a lighting device according to one embodiment of the present invention.

[0038]

[0039] Since the embodiments of the present invention are susceptible to various modifications and may take various forms, specific embodiments are illustrated in the drawings and described in detail in the specification of the present invention. However, the embodiments are not intended to be limited to specific disclosed forms, and should be understood to encompass modifications, equivalents, and alternatives that fall within the technical spirit and scope of the present invention.

[0040] Hereinafter, the present invention will be described in detail.

[0041] The present invention relates to a vision inspection lighting device that irradiates light onto the exterior of a vehicle to inspect surface defects on the exterior of the vehicle. The lighting device is installed to irradiate light onto the exterior of the vehicle, and for example, it can be installed to surround the side and top of the vehicle in a tunnel shape from the exterior of the vehicle, or it can be installed to irradiate light onto one side of the vehicle, such as the ceiling or side of the vehicle.

[0042] The number and arrangement of the lighting devices of the present invention can be adjusted according to the installation location, type of vehicle body, required light irradiation range and direction, etc., and when installed in a tunnel, a plurality of lighting devices can be arranged from the entrance to the exit of the tunnel.

[0043] Fig. 2 is an exploded view showing an exploded state of a lighting module (100) according to one embodiment of the present invention, and Fig. 3 is a combined view showing an assembled state of a lighting module (100) according to one embodiment of the present invention. (A) of Fig. 3 shows the lighting module (100) as viewed from the left and right, (B) shows the shape as viewed from the top and bottom, and (C) shows the shape as viewed from the front and rear.

[0044] Referring to FIGS. 2 and 3, the lighting device of the present invention includes a plurality of lighting modules (100), wherein the lighting modules (100) are equipped with light sources (300) in the front-back direction to irradiate light, and the plurality of lighting modules (100) are arranged in a parallel manner in the left-right direction so that the irradiated light forms a stripe shape on the exterior of the vehicle.

[0045] Here, the forward / backward direction refers to the direction in which a single line is formed continuously in a striped shape, and the left / right direction refers to the direction in which multiple lines are arranged while being disconnected from each other.

[0046] A single lighting module (100) has a shape that extends long in the front-back direction, and a light source (300) provided in the lighting module (100) is provided along the front-back direction, so that a single striped line is formed by the light irradiated from the light source (300). Each striped line can be formed through a plurality of lighting modules (100), and an overall striped shape can be formed by combining a plurality of lighting modules (100).

[0047] In the present invention, the light source (300) may include an LED (320), and in one embodiment, may have a structure in which a plurality of LEDs (320) are installed at regular intervals on a substrate (310). In this case, it is preferable that the LED (320) be capable of changing color, such as RGB or RGBW. In addition to the LED (320), the light source (300) may be applied with various lamps, such as an incandescent lamp, a fluorescent lamp, a halogen lamp, and even in this case, it is preferable that the color temperature or illuminance be capable of changing.

[0048] In one embodiment of the present invention, the light source (300) may be composed of a plurality of light-emitting elements having different color temperatures. For example, the plurality of light-emitting elements may be composed of a plurality of LEDs (320) arranged in the left-right direction and implemented as RGB, and a plurality of light-emitting elements may be arranged in the front-back direction.

[0049] The above lighting module (100) may include a housing (110) in which the light source (300) is accommodated, an open surface (O) is formed on one side of the left and right directions, and a blocking plate (115) is provided on the other side.

[0050] As shown in FIGS. 2 and 3, the housing (110) may be formed in a rectangular shape by extending in the front-rear direction, and an accommodation space may be formed inside. Here, the light source (300) may be accommodated in the accommodation space inside.

[0051] In addition, the housing (110) may include a bottom plate (111) extending in the front-back direction, front and rear side plates (112) extending upwardly spaced apart from each other on both front and rear sides of the bottom plate (111), a mounting portion (113) extending inwardly from the front and rear side plates (112) of the housing (110), and a blocking plate (115) extending upwardly from the left or right side of the bottom plate (111).

[0052] Here, the mounting portion (113) may be formed by bending the upper portion of the front and rear side plates (112) inwardly of the housing (110), and a diffusion plate (400) may be mounted on the mounting portion (113). The diffusion plate (400) diffuses light irradiated from the light source (300) and may have a plate or filter structure. This is to disperse the light irradiated from the light source (300) and irradiate the light evenly. In FIGS. 1 and 2, the diffusion plate (400) is shown in a flat shape, but may be formed in a gently curved shape along the front-back direction or the left-right direction. For example, the diffusion plate (400) may be formed to be concave inwardly of the housing (110) in order to improve the clarity of the stripe pattern on the vehicle and to focus the irradiated light on the outer surface of the vehicle.

[0053] Since the blocking plate (115) is provided on the left or right side of the housing (110), an open surface (O) is formed on the right or left side of the housing (110). More specifically, when the blocking plate (115) is provided on the left side of the housing (110), an open surface (O) is formed on the right side of the housing (110), and when the blocking plate (115) is provided on the right side of the housing (110), an open surface (O) is formed on the left side of the housing (110). Due to the open surface (O), the inside and outside of the housing (110) can be connected to each other.

[0054] The above blocking plate (115) may be formed to extend in the outer direction of the housing (110), and in one embodiment of the present invention, the blocking plate (115) is formed to protrude upwardly from the housing (110) along the front-back direction, so that when the diffusion plate (400) is installed on the mounting portion (113), the diffraction of light passing through the diffusion plate (400) is blocked by the blocking plate (115), thereby increasing the concentration of light. This increases the concentration of light irradiated from the light source (300) in each of the plurality of lighting modules (100) described below, thereby increasing the value of the light.

[0055] It is advantageous in forming a stripe shape with higher definition by preventing interference.

[0056] Although not shown in the drawing of the present invention, the blocking plate (115) may have a V shape that extends upwards to form a striped shape with higher definition, in which case there is an effect of the light irradiated from a plurality of lighting modules (100) being focused by the adjacent blocking plates (115).

[0057] FIG. 4 is an exploded view showing a process of combining multiple lighting modules (100) according to one embodiment of the present invention, and FIG. 5 is a combined view showing a state in which multiple lighting modules (100) according to one embodiment of the present invention are combined.

[0058] Referring to FIGS. 4 and 5, a plurality of lighting modules (100) are arranged in the left and right directions, and since the lighting modules (100) each forming one striped line are arranged in the left and right directions, an overall striped shape can be formed.

[0059] When explaining the state of connection of adjacent lighting modules (100), an open surface (O) formed in one lighting module (100) is blocked by a blocking plate (115) provided in another lighting module (100). For example, the open surface (O) formed on the left side of one lighting module (100) may have a structure in which it is blocked by a blocking plate (115) provided on the right side of another lighting module (100).

[0060] At this time, the internal accommodation space of adjacent lighting modules (100) is partitioned from each other by the blocking plate (115) of the other lighting module (100).

[0061] The lighting modules (100) of the present invention having the structure as described above have the effect of eliminating interference of light irradiated from the light source (300) accommodated therein, thereby increasing the clarity of the stripe shape and reducing the material and weight of each lighting module (100). In addition, by configuring the vision inspection lighting device with a plurality of lighting modules (100), there is an advantage in that the number of required lighting modules (100) can be selectively utilized, and at the same time, among the plurality of lighting modules (100), the lighting module (100) requiring replacement can be independently separated.

[0062] A coupling means may be further included to couple or fix the plurality of lighting modules (100), and the coupling means may have a structure in which, for example, a groove is provided in one lighting module (100) and a protrusion is provided in another adjacent lighting module (100) to correspond to the groove, such that the groove and the protrusion are interlocked with each other. In addition, the coupling means may have a binder structure that fixes the plurality of lighting modules (100) as a whole or a mounting structure in which the plurality of lighting modules (100) are mounted. In one embodiment, the coupling means may have a tray structure in the shape of a square frame in which each of the lighting modules (100) is accommodated, and in this case, the lighting modules (100) can be detachably coupled to the inside of the coupling means in a sliding manner.

[0063] When the above lighting modules (100) are combined, the open surface (O) of the lighting module (100) positioned last can be blocked by the cover (500), and it is preferable that the shape of the cover (500) be formed to correspond to the left or right shape of the housing (110) so that the inside of the housing (110) is closed.

[0064] FIG. 6 is a conceptual diagram showing a control operation of a lighting device according to an embodiment of the present invention, FIG. 7 is an operation state diagram showing an operation state according to control modes of a lighting device according to an embodiment of the present invention, FIG. 8 is a state diagram showing vehicle inspection through a lighting device according to an embodiment of the present invention, and FIG. 9 is a reference diagram explaining a wavelength and complementary color of light applicable to a lighting device according to an embodiment of the present invention.

[0065] Referring to FIGS. 6 to 8, the light source (300) control method of the present invention is described.

[0066] In the present invention, the light sources (300) can be controlled by a control means (600). The control means (600) independently controls the light intensity or wavelength of the light sources (300) provided in the plurality of lighting modules (100), and can be provided inside or outside the lighting module (100). In addition, it is preferable that the control means (600) be capable of wireless or wired communication with the light sources (300) provided in the plurality of lighting modules (100).

[0067] As illustrated in FIG. 6, when each of the plurality of lighting modules (100) is described by assigning numbers to each of the plurality of lighting modules, the light sources (300) provided in each of the lighting modules (100) are independently controlled by a control means (600). The control means (600) can not only irradiate light through the entire lighting module (100), but can also selectively control whether to irradiate light and the wavelength or intensity of light from among 1 to 9 of the lighting modules (100). For example, the light irradiated from some of the plurality of lighting modules (100) is controlled to a first value, and the light irradiated from other some is controlled to a second value, so that the light of the first value and the second value alternates overall.

[0068] It can be done.

[0069] In one embodiment, the control means (600) may cause light to be irradiated only through odd-numbered lighting modules (100) among a plurality of lighting modules (100), or only through even-numbered lighting modules (100), as illustrated in (A) and (B) of FIG. 7. In this case, the first value means a value at which light is irradiated, and the second value means a value at which light is not irradiated. That is, the light sources (300) of the odd-numbered lighting modules (100) have the first value and irradiate light, and the light sources (300) of the even-numbered lighting modules (100) have the second value and do not irradiate light.

[0070] In the present invention, this is defined as a brightness control mode.

[0071] Assuming that light of a single color or single wavelength is irradiated, defects existing on the exterior of the vehicle may be more noticeable in the light-irradiated area, or conversely, may be more noticeable in the dark area where no light is irradiated, depending on their location, shape, and type.

[0072] In the light / dark control mode of the present invention, light is irradiated only through odd numbers or only through even numbers, so that light and dark areas are selectively or sequentially applied at the same vehicle location, thereby enabling defects in the vehicle to be identified at the light area, dark area, or the boundary therebetween, thereby securing an advantage of higher inspection precision.

[0073] In addition, the control means (600) controls the intensity, wavelength, color temperature, etc. of the light irradiated in the list. Referring again to (A) and (B) of FIG. 7, the control means (600) can set the light sources (300) of the odd-numbered lighting modules (100) to a first value having a longer wavelength than the bulb color, and set the light sources (300) of the even-numbered lighting modules (100) to a second value that is a dark state. Here, the first value can be changed to a value having a shorter wavelength than the primary white or primary light color, and the first value that irradiates light and the second value that is a dark state can be changed to be swapped.

[0074] In addition, the control means (600) can control the first value of the lighting module (100) located at an odd number and the second value of the lighting module (100) located at an even number to have different color temperatures, as illustrated in (C) of FIG. 7. In the present invention, this is defined as a color control mode. In one example, the first value can be set to have a wavelength of a light bulb color and the second value can be set to have a wavelength of a daylight color.

[0075] In another embodiment, the first value and the second value may have wavelengths that are complementary colors. Here, complementary colors refer to a color contrast relationship in which the saturation of each color appears to increase due to the influence of each other when indicating color temperature according to the wavelength of light as shown in FIG. 9, and refer to colors that face each other in FIG. 9. For example, since the complementary color of red is cyan, the first value may be set to a wavelength range of light having a red color, and the second value may be set to a wavelength range of light having a cyan color.

[0076] The degree to which defects existing on the exterior of a vehicle can be identified varies depending on the type, location, vehicle color, etc. In the present invention, even when light is irradiated on the same location, by varying the color temperature of the light, defects on the exterior of the vehicle can be identified using light of different wavelengths or at the boundary thereof, and furthermore, by controlling the first and second values ​​to have a complementary color relationship that contrasts with each other, higher light clarity and inspection precision can be secured.

[0077] Meanwhile, the control means (600) can control the light sources (300) so that at least one lighting module (100) irradiating light of the second value is provided between the lighting modules (100) irradiating light of the first value based on the left and right directions.

[0078] Referring back to FIG. 6, the lighting modules (100) of 1, 3, 5, 7, and 9 can be set to the first value and the lighting modules (100) of 2, 4, 6, and 8 can be set to the second value, and the lighting modules (100) of 1, 4, and 7 can be set to the first value and the lighting modules (100) of 2, 3, 5, and 6 can be set to the second value, and the lighting modules (100) of 1, 5 can be set to the first value and the lighting modules (100) of 2, 3, 4, 6, 7, and 8 can be set to the second value. That is, a plurality of lighting modules (100) having second values ​​can be positioned between lighting modules (100) having first values. Of course, it is also possible to control the lighting modules (100) of 1, 2, 5, and 6 as the first value and the lighting modules (100) of 3, 4, 7, and 8 as the second value so that a plurality of lighting modules (100) having the first value are sequentially controlled. That is, the first and second values ​​are plural and can be positioned sequentially. Here, the first value and the second value mean values ​​having different wavelengths or intensities (light areas, dark areas, etc.) and color temperatures as described above. In addition, the ratio of the first value and the second value can be maintained and the width can be adjusted by setting 1, 2, 5, and 6 as the first value and setting the lighting modules of 3, 4, 7, and 8 as the second value.

[0079] In addition, in one embodiment of the present invention, the control means (600) can control some of the plurality of lighting modules (100) to have a third value, and the third value may be a value having a different light intensity or wavelength from the first and second values. For example, the first, second, and third values ​​may each be at least one, and the first, second, and third values ​​may appear sequentially.

[0080] According to one embodiment of the present invention as described above, the color or spacing of the light stripe shape can be easily adjusted without changing the position of the lighting device or the arrangement of the lighting module (100), so that various stripe shapes can be applied according to the type, position, color, size, shape, etc. of the vehicle, thereby securing a wider range of samples, and there is an advantage in that a higher inspection precision can be secured due to the application of the optimal stripe shape.

[0081] The vehicle exterior vision inspection system according to the present invention includes a photographing means (C) for photographing a light stripe shape formed on the exterior of the vehicle and a storage means (D) for storing data photographed from the photographing means (C), and the control means (600) can control to form a light stripe shape set from the first value and the second value, and then reset the first value and the second value to form a reset light stripe shape.

[0082] The above vehicle exterior vision inspection system is intended to increase the ease and reliability of inspection by securing a wide range of photographing data in the inspection of the vehicle exterior. Here, the photographing means (C) may utilize a camera, etc., and the photographing means (C) may be provided in the lighting device or installed separately. In addition, the photographing means (C) may be configured in multiple numbers.

[0083] In the embodiment of the control means (600) described above, in the brightness control mode, the color or intensity of the bright part can be changed, or the bright part and the dark part can be applied in opposite directions, and in the color control mode, different colors can be applied, or the first, second, and third values ​​with different colors can be applied in opposite directions, and various combinations are possible. Through the photographing means (C), various sample data can be secured through repetition, such as photographing by setting one first and second values ​​according to each combination, and then resetting the first and second values ​​to another value and then photographing, and each data can be stored by the storage means (D).

[0084] The above storage means (D) can be connected to the camera by wire or wirelessly and can be provided inside or outside the lighting device.

[0085] Meanwhile, in one embodiment of the present invention, an analysis means (A) for analyzing defects in the exterior of a vehicle based on data stored in the storage means (D) may be further included.

[0086] The above analysis means (A) may be a computer program, and performs a function of detecting defects in the vehicle's exterior by comparing the various sample data. For example, the analysis means (A) may be a computer program that analyzes defects in the vehicle's exterior through repeated patterns or pixels from an image file of the sample data.

[0087] The vehicle exterior vision inspection system according to one embodiment of the present invention as described above has the advantage that a worker for vehicle exterior inspection can perform work during the time when light is irradiated, and can retrieve data from a storage means (D) in which various sample data are stored to perform inspection work during the time when light is not irradiated, i.e., at a later time, and furthermore, can automate vehicle exterior inspection through an analysis means (A).

Claims

1. In a vision inspection lighting device that inspects surface defects on a vehicle's exterior by irradiating light on the vehicle's exterior, Includes a plurality of lighting modules that are equipped with light sources in the front and rear directions to irradiate light; A vision inspection lighting device utilizing color contrast, characterized in that the above-mentioned plurality of lighting modules are arranged in a parallel manner in the left and right directions so that the irradiated light forms a stripe shape on the exterior of the vehicle.

2. In paragraph 1, Further comprising a control means for controlling the light source; A vision inspection lighting device using color contrast, characterized in that the control means independently controls the light intensity or wavelength of the light sources provided in the plurality of lighting modules.

3. In paragraph 2, A vision inspection lighting device using color contrast, characterized in that any one of the plurality of lighting modules is independently separable from the vision inspection lighting device.

4. In paragraph 3, The above lighting module, A housing in which the light source is received and an open surface is formed on one of the left and right sides and a blocking plate is provided on the other side; A vision inspection lighting device using color contrast, characterized in that the open surface of the above lighting module is blocked by a blocking plate of another lighting module adjacent to the above lighting module.

5. In paragraph 4, A vision inspection lighting device using color contrast, characterized in that the blocking plate protrudes outward from the housing along the front-back direction to improve the concentration of light irradiated from the light source.

6. In paragraph 2, The above control means, Controlling the light irradiated from some of the above multiple lighting modules to a first value, and controlling the light irradiated from other some to a second value, A vision inspection lighting device using color contrast, characterized in that at least one lighting module irradiating light of the second value is provided between lighting modules irradiating light of the first value based on the left and right directions, so that the overall light of the first value and the second value alternates.

7. In paragraph 6, A vision inspection lighting device using color contrast, characterized in that at least one of the alternating first or second value lights is irradiated by two or more consecutive lighting modules, and the width of the first or second value light is adjusted according to the number of consecutive lighting modules.

8. In paragraph 6, The above control means, The first value or the second value is a brightness control mode that controls light not to be irradiated; and A vision inspection lighting device using color contrast, characterized in that it includes a color control mode that controls the first value and the second value to have different wavelength ranges.

9. In paragraph 8, The above color control mode is, A vision inspection lighting device using color contrast, characterized in that the first value and the second value are controlled to have complementary wavelengths.

10. In a vehicle exterior vision inspection control system using a vision inspection lighting device utilizing color contrast according to Article 6, A photographing means for photographing the pattern of light stripes formed on the exterior of a vehicle; and A storage means for storing data captured from the above-mentioned capturing means; The above control means, A vehicle exterior vision inspection control system characterized in that, after controlling to form a light stripe shape set from the first value and the second value, the first value and the second value are reset to form a reset light stripe shape.

11. In paragraph 10, A vehicle exterior vision inspection control system further comprising an analysis means for analyzing defects in the vehicle exterior based on data stored in the above storage means.

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