JP7163349B2 - Imaging device - Google Patents

Description

The present invention relates to an imaging apparatus used for capturing images under various lighting conditions.

In recent years, system development using AI (Artificial Intelligence) has progressed in various fields. When generating AI, it is necessary to load a large amount of learning data and have it learn. For example, Patent Literature 1 below discloses a learning data generation device for collecting a large amount of object images as learning data for performing object detection and object identification from moving images and still images.

Japanese Patent Application Laid-Open No. 2002-200002 describes using a shooting environment provided with a turntable to shoot an object from various directions. In addition, in order to make the lighting conditions different, it is described that the type of lighting is changed, the height of the table fixing the lighting is changed step by step, and the position of the table is moved. It also describes stepping up the height of the platform on which the camera is fixed in order to photograph the object from different heights.

JP 2014-178957 A

However, the configuration disclosed in Patent Literature 1 requires a mechanical structure and a control mechanism for changing the height of the stand on which the lighting and camera are fixed. Moreover, when a large number of images are to be photographed, if a step of moving the fixed position of the illumination is included, there is a problem that it takes time to photograph.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an imaging apparatus capable of photographing an object under various lighting conditions without the need to move the fixed position of the lighting.

In order to solve the above problems, the imaging apparatus according to the present invention includes a mounting base for mounting an object to be photographed, a camera for capturing an image of the object to be photographed placed on the mounting base, and a front camera. The apparatus comprises a plurality of side walls provided so as to surround the writing stand, and a plurality of side lighting units attached inside the plurality of side walls, and individually changing lighting states of the plurality of side lighting units. Therefore, the illumination conditions of the mounting table can be varied.

According to the above configuration, it is possible to provide an image capturing apparatus capable of capturing an image of an object by variously changing the lighting environment without the need to move the fixed position of the lighting.

FIG. 1 is a perspective view showing a schematic configuration of an imaging device according to one embodiment. FIG. 2 is a side view of the imaging device. FIG. 3 is a top view of the imaging device. FIG. 4 is a top view showing a state in which the door is opened in the imaging device. FIG. 5 is a perspective view showing the configuration inside the door of the imaging device. FIG. 6 is a perspective view showing the configuration of an illumination unit attached inside the door of the imaging device. FIG. 7 is a plan view showing a schematic configuration of an illumination unit installed on the lower surface of the upper illumination plate. FIG. 8 is a schematic diagram showing the arrangement of cameras in the imaging device according to one embodiment. FIG. 9A is a schematic diagram showing an example of the lighting state of the lighting unit inside the door. FIG. 9B is a schematic diagram showing an example of the lighting state of the lighting unit inside the door. FIG. 9C is a schematic diagram showing an example of the lighting state of the lighting unit inside the door. FIG. 9D is a schematic diagram showing an example of the lighting state of the lighting unit inside the door. FIG. 9E is a schematic diagram showing an example of the lighting state of the lighting unit inside the door. FIG. 9F is a schematic diagram showing an example of the lighting state of the lighting unit inside the door. FIG. 9G is a schematic diagram showing an example of the lighting state of the lighting unit inside the door. FIG. 9H is a schematic diagram showing an example of the lighting state of the lighting unit inside the door. FIG. 9I is a schematic diagram showing an example of the lighting state of the lighting unit inside the door. FIG. 10A is a schematic diagram showing an example of the lighting state of the lighting unit of the upper lighting plate. FIG. 10B is a schematic diagram showing an example of the lighting state of the lighting unit of the upper lighting plate. FIG. 10C is a schematic diagram showing an example of the lighting state of the lighting unit of the upper lighting plate. FIG. 10D is a schematic diagram showing an example of an illumination state of the illumination unit of the upper illumination plate. FIG. 10E is a schematic diagram showing an example of the lighting state of the lighting unit of the upper lighting plate. FIG. 10F is a schematic diagram showing an example of an illumination state of the illumination unit of the upper illumination plate. FIG. 10G is a schematic diagram showing an example of the lighting state of the lighting unit of the upper lighting plate. FIG. 10H is a schematic diagram showing an example of the lighting state of the lighting unit of the upper lighting plate.

An imaging apparatus according to a first configuration of the present invention includes a mounting table for mounting an object to be photographed, a camera for capturing an image of the object to be photographed mounted on the mounting table, and a camera surrounding the mounting table. and a plurality of side lighting units attached inside the plurality of side walls, and by individually changing the lighting state of the plurality of side lighting units, Differentiate the lighting conditions of the stand.

According to this first configuration, the plurality of side lighting units attached to the inside of the plurality of side walls provided so as to surround the mounting table can illuminate the mounting table by individually changing the lighting state. Conditions can be different.

In this way, by varying the illumination conditions from the sides, it becomes easy to photograph a large number of images with different incident directions of light for one object to be photographed. This is particularly convenient when photographing an image of a metal product or the like whose reflection state changes greatly depending on the incident direction of light.

An imaging device according to a second configuration is the imaging device according to the first configuration, wherein at least one of the plurality of side walls can be opened and closed.

According to the second configuration, since at least one of the side walls can be opened and closed, it becomes easy to attach the side lighting unit to the inside of the side wall and to remove the side lighting unit from the inside of the side wall. . In addition, it is possible to easily perform the work of placing and removing the object to be photographed on the placing table.

An imaging apparatus according to a third configuration, in the first configuration or the second configuration, further includes an upper lighting plate having a plurality of upper lighting units above the mounting table, wherein the lighting state of the plurality of upper lighting units are individually changed, the illumination conditions of the mounting table are varied.

According to the third configuration, by individually changing the lighting state of the plurality of upper lighting units on the upper lighting plate above the mounting table, the lighting conditions from above the mounting table can be varied. As a result, in addition to changes in illumination conditions from the side, variations in illumination conditions from above can also be increased.

An imaging device according to a fourth configuration is the imaging device according to the third configuration, wherein the upper illumination plate is vertically movable.

According to the fourth configuration, the distance between the mounting table and the upper lighting plate can be set variously, so that the variation of lighting conditions from above can be further increased.

An imaging device according to a fifth configuration is the imaging device according to the third or fourth configuration, wherein the camera is arranged facing the mounting table through an opening of the upper illumination plate.

According to the fifth configuration, the camera can be installed above the upper lighting plate by providing the opening in the upper lighting plate.

An imaging device according to a sixth configuration is the imaging device according to the fifth configuration, wherein the camera is movable along the opening.

According to the sixth configuration, by changing the position of the camera along the opening of the upper lighting plate, it is possible to photograph images at different photographing angles.

An imaging device according to a seventh configuration is the fifth or sixth configuration, wherein the camera can change an angle with respect to a normal line of the upper illumination plate.

According to the seventh configuration, by making it possible to change the angle of the camera with respect to the normal to the upper illumination plate, it is possible to photograph images at different photographing angles.

An imaging apparatus according to an eighth configuration is provided with a plurality of cameras in any one of the first to seventh configurations.

According to the eighth configuration, a large number of images can be efficiently captured by using a plurality of cameras.

An imaging device according to a ninth configuration is the imaging device according to any one of the first to eighth configurations, wherein the lighting unit includes wiring boards arranged in parallel and a light emitting element substrate connected between the wiring boards. , the side wall has a rack for supporting the side lighting unit.

According to the ninth configuration, it is possible to attach the side lighting unit to the side wall by a simple process.

An imaging device according to a tenth configuration is the imaging device according to the first configuration, wherein each of the plurality of side lighting units includes a plurality of LED light emitting elements, and the position of the LED light emitting element to emit light among the plurality of LED light emitting elements , the number, the order in which light is emitted, the intensity of emitted light, and the color of emitted light, the illumination conditions of the mounting table are varied.

According to the tenth configuration, by using the plurality of LED light emitting elements of the side lighting unit, it is possible to realize many variations of the lighting conditions of the mounting table.

An imaging device according to an eleventh configuration is the imaging device according to the third configuration, wherein each of the plurality of upper lighting units includes a plurality of LED light emitting elements, and the position of the LED light emitting element to emit light among the plurality of LED light emitting elements, By changing at least one of the number, the order of light emission, the intensity of emitted light, and the color of emitted light, the illumination conditions of the mounting table are varied.

According to the eleventh configuration, by using the plurality of LED light emitting elements of the upper lighting unit, many variations of the lighting conditions of the mounting table can be achieved.

An imaging apparatus according to a twelfth configuration is the imaging apparatus according to any one of the first to eleventh configurations, wherein the mounting table includes a turntable.

According to the twelfth configuration, by placing the object to be photographed on the turntable and rotating the turntable, it is possible to vary the photographing direction with respect to the object to be photographed.

[Embodiment]
Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. The same or corresponding parts in the drawings are denoted by the same reference numerals, and the description thereof will not be repeated. In addition, in order to make the description easier to understand, in the drawings referred to below, the configuration is shown in a simplified or schematic form, or some constituent members are omitted. Also, the dimensional ratios between the constituent members shown in each drawing do not necessarily indicate the actual dimensional ratios.

First, a schematic configuration of an imaging device 100 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4. FIG. FIG. 1 is a perspective view showing a schematic configuration of an imaging device 100. As shown in FIG. 1 to 4, illustration of an illumination unit provided inside the imaging device 100 is omitted. The illumination unit will be described separately with reference to FIG. 5 and subsequent figures.

The imaging device 100 has a bottom plate 1 as shown in FIGS. 1 and 2 . In this embodiment, the bottom plate 1 has a regular octagonal planar shape. The bottom plate 1 can be made of any material such as metal or resin. A disk-shaped turntable 11 is provided on the bottom plate 1 . The surface of the turntable 11 is covered with a cloth 12. - 特許庁The cloth 12 is fixed to the turntable 11 by a cloth fixing ring 13 attached along the side surface of the turntable 11 . An object to be photographed is placed on this cloth 12 . The color and material of the cloth 12 may be appropriately selected for purposes such as highlighting the outline of the object to be photographed and matching the situation and conditions during use. The turntable 11 is configured to rotate about its center. Although not shown here, the turntable 11 is configured to be rotationally driven at a constant angular velocity by a motor or the like. With such a configuration in which the bottom plate 1 rotates, it is possible to photograph an object under various conditions in which the direction of light striking the object to be photographed is varied.

Supports 8a to 8d are attached to every other corner of the regular octagonal bottom plate 1, that is, to four corners of the bottom plate 1. As shown in FIG. Supports 8a to 8d support a top plate 2 having substantially the same outer shape as the bottom plate 1. As shown in FIG. Two doors 7 are attached to each of the columns 8a to 8d. That is, the imaging device 100 has eight doors 7a to 7h. Doors 7a to 7h are arranged along eight sides of bottom plate 1 and top plate 2, respectively, as shown in FIG.

The door 7a is provided with an upper window 70a1 and a lower window 70a2. Doors 7b to 7h are similarly provided with windows. Upper Window 70a1 and Lower Window 70a2 The upper window 70a1 and lower window 70a2 may be simple openings, or may be filled with transparent glass or the like. Also, in this embodiment, two windows, the upper window 70a1 and the lower window 70a2, are provided, but the number of windows may be one, or three or more. Alternatively, the door may have no window. It is not necessary to install windows on all the doors, but if windows are installed, the position, shape, and size of the windows on the eight doors should be symmetrical to ensure uniform lighting conditions. preferable. By providing the window, there is an advantage that the weight of the entire device can be reduced. In addition, if necessary, a camera may be attached outside the window so that the image can be taken from the side through the window.

FIG. 4 is a schematic diagram showing a state in which all the doors 7a to 7h are opened, viewed from above. As shown in FIG. 4, doors 7a and 7b are attached to the post 8a. Doors 7c and 7d are attached to the post 8d. Doors 7e and 7f are attached to the column 8c. Doors 7g and 7h are attached to the column 8b. Doors 7a-7h are attached to posts 8a-8d by hinges. As shown in FIG. 4, the doors 7a to 7h are opened outward about 90 degrees around the supports 8a to 8d.

As shown in FIGS. 1 and 3, the top plate 2 has a wide opening in the center, and beam members 3a and 3b extend over the opening in a cross shape. The ends of beam members 3a and 3b are fixed to supports 8a to 8d.

Two suspension members 5a and 5b extending vertically downward are fixed to the beam member 3a. The upper illumination plate 4 is supported by the suspension members 5a and 5b. The outer shape of the upper illumination plate 4 is a regular octagon similar to the bottom plate 1 . The upper illumination plate 4 can be moved vertically in order to adjust the distance from the turntable 11 . For example, in FIG. 2, the upper lighting plate 4 can be moved to a position indicated by 4'. In this manner, the upper lighting plate 4 is formed in a size that does not interfere with the doors 7a to 7f during movement in order to move up and down.

As shown in FIGS. 2 and 3, stoppers 5c and 5d are provided at the root portions of the suspension members 5a and 5b on the top plate 2. As shown in FIGS. By loosening the stoppers 5c and 5d, the length by which the suspension members 5a and 5b protrude downward from the top plate 2 can be adjusted. Thereby, the height position of the upper illumination plate 4 with respect to the turntable 11 can be adjusted. After setting the upper illumination plate 4 at an appropriate height position, the height of the upper illumination plate 4 is fixed by moving the stoppers 5c and 5d to the fastening positions. In this example, the height of the upper lighting plate 4 with respect to the turntable 11 is manually set, but the height of the upper lighting plate 4 with respect to the turntable 11 is automatically controlled by motor control or the like. It is good as

A large number of LED light sources are arranged on the entire bottom surface of the upper illumination plate 4, as will be described in detail later. As shown in FIGS. 1 and 3, the upper illumination plate 4 is provided with an opening 4a at a position overlapping the beam member 3b when viewed from above. Aperture 4a is formed to receive the objective lenses of first camera 6a and second camera 6b. Thereby, the object to be photographed on the turntable 11 can be photographed by the first camera 6a and the second camera 6b through the opening 4a.

Next, the configuration of the illumination provided in the imaging device 100 will be described with reference to FIGS. 5 to 8. FIG.

First, the lighting units provided inside the doors 7a to 7h will be described.

Although FIG. 5 illustrates only the door 7a, the doors 7a to 7h all have a common structure regarding the structure of the racks 71 and 72. As shown in FIG. Therefore, only the door 7a will be described here, but the doors 7b to 7h also have the same configuration.

As shown in FIG. 5, the door 7a is provided with racks 71 and 72 for supporting lighting units, which will be described later. The racks 71 and 72 extend continuously in the vertical direction to the left and right of the windows 70a1 and 70a2 inside the door 7a.

Rack 71 has a fixed surface 711 , an outer side surface 712 and an inner side surface 713 . The fixed surface 711 is fixed to the inner surface of the door 7a. The outer side surface 712 is provided on the end side in the width direction of the door 7a and protrudes toward the inside of the door 7a. The inner side surface 713 faces the outer side surface 712 and has a concave portion 713p and a convex portion 713q. The protrusions 713p and the recesses 713q are alternately provided along the length of the rack 71 .

Rack 72 has a fixed surface 721 , an outer side surface 722 and an inner side surface 723 . The fixed surface 721 is fixed to the inner surface of the door 7a. The outer side surface 722 is provided on the end side in the width direction of the door 7a and protrudes toward the inside of the door 7a. The inner side surface 723 faces the outer side surface 722 and has a concave portion 723p and a convex portion 723q. The protrusions 723p and the recesses 723q are alternately provided along the length of the rack 72 .

FIG. 6 is a perspective view showing a schematic configuration of the lighting unit 21 attached to the racks 71 and 72. As shown in FIG. The lighting unit 21 has a configuration in which a plurality of LED boards 93 to 98 are connected in parallel between wiring boards 91 and 92 arranged in parallel. Although only six LED boards are illustrated in the example of FIG. 6, the number of LED boards is not limited to this.

A plurality of LED light emitting elements 99 are arranged on each of the LED substrates 93 to 98 . A control circuit or the like for controlling ON/OFF of each of the LED light emitting elements 99 can be arbitrarily arranged on the wiring boards 91 and 92 . In this embodiment, for each door, a plurality of LED light emitting elements 99 attached to the LED boards 93 to 98 are simultaneously ON/OFF controlled. However, it is also possible to control ON/OFF of each LED light emitting element 99 independently. For example, the LED light-emitting elements 99 may be lit only on some of the LED boards 93-98. Alternatively, a plurality of LED light-emitting elements may be sequentially lit on one LED substrate.

Also, in the example of FIG. 6, the LED boards 93 and 94 are arranged adjacent to each other, an LED board 95 is arranged next to them with an interval of two LED boards, and further next to it is an LED board 95 for two LED boards. The LED boards 96 and 97 are arranged with a gap therebetween, and the LED board 98 is arranged next with a gap corresponding to one LED board. However, the arrangement pattern of the LED boards is not limited to this example, and the arrangement interval and the like of the LED boards can be arbitrarily adjusted in order to obtain a desired lighting effect.

The width of the wiring boards 91 and 92 is formed slightly smaller than the width of the fixing surfaces 711 and 721 of the racks 71 and 72 . The spacing and width of the LED boards 93-98 are set so that the LED boards 93-98 are received in the recesses 713p and 723p of the racks 71 and 72, respectively. The lengths of the LED boards 93 to 98 are such that the wiring board 91 is arranged along the fixing surface 721 of the rack 72 between the outer side surface 722 and the inner side surface 723 , while the wiring board 92 is arranged along the fixing surface 711 of the rack 71 . It is set so that it can be arranged between the outer side surface 712 and the inner side surface 713 by Thereby, the lighting unit 21 can be attached to the racks 71 and 72 so that the LED light emitting element 99 faces inward. In addition, between the wiring boards 91 and 92 and the fixing surfaces 711 and 721, another wiring board or the like may be appropriately installed.

Also, the lighting unit 21 is fixed to the fixing surfaces 711 and 721 of the racks 71 and 72 with screws or the like, but can be easily removed when it is desired to change the lighting conditions.

Alternatively, if the LED boards are arranged at regular intervals in the concave portions 713p and 723p of the racks 71 and 72 and only the necessary rows (LED boards) are lit according to the desired lighting conditions, the lighting unit 21 lighting conditions can be changed without removing the

In addition, in the configuration of this embodiment, as shown in FIG. 4, the doors 7a to 7h open wide outward, so that the lighting unit 21 can be attached to or removed from the racks 71 and 72 provided inside the doors 7a to 7h. Work can be done easily.

Next, the configuration of the illumination unit provided on the lower surface of the upper illumination plate 4 will be described with reference to FIGS. 7 and 8. FIG. FIG. 7 is a plan view showing a schematic configuration of an illumination unit installed on the lower surface of the upper illumination plate 4. As shown in FIG. As shown in FIG. 7, lighting units 31a to 31d are attached to the lower surface of the upper lighting plate 4. As shown in FIG. Each of the lighting units 31a to 31d has a structure in which a plurality of LED light emitting elements 32 are attached to an LED substrate.

In this embodiment, the plurality of LED light emitting elements 32 attached to each of the lighting units 31a to 31d are simultaneously ON/OFF controlled. However, by adjusting the wiring method and control, the plurality of LED light emitting elements 32 attached to each of the lighting units 31a to 31d can be controlled to turn on/off in various orders.

Next, the ON/OFF pattern of the lighting units 21 attached to the doors 7a to 7h will be described. Here, the lighting units 21 for the doors 7a to 7h are referred to as lighting units 21a to 21h, respectively. Also, here, each of the lighting units 21a to 21h is assumed to emit white light in the lighting state.

Regarding the lighting units 21a to 21h, all of the lighting units 21a to 21h are turned off (OFF) (FIG. 9A), only the lighting unit 21b is turned on (ON) (FIG. 9B), and only the lighting unit 21c is turned on. is lit (ON) (FIG. 9C), only the lighting unit 21d is lit (ON) (FIG. 9D), only the lighting unit 21e is lit (ON) (FIG. 9E), and the lighting unit 21f is lit (ON) (FIG. 9F), a state in which only the lighting unit 21g is lit (ON) (FIG. 9G), a state in which only the lighting unit 21h is lit (ON) (FIG. 9H), and a lighting unit It is possible to select one of a total of 9 types of illumination states, including a state in which only 21a is lit (ON) (FIG. 9I). In FIGS. 9A to 9I, lighting units are indicated by solid lines, and lighting units in an off state are indicated by broken lines.

Next, the ON/OFF pattern of the lighting units 31a to 31d of the upper lighting plate 4 will be described. In FIGS. 10A to 10H as well, lighting units in the lit state are indicated by solid lines, and lighting units in the off state are indicated by dashed lines. Also, here, each of the illumination units 31a to 31d is assumed to emit white light in the lighting state. Regarding the lighting units 31a to 31d, all of the lighting units 31a to 31d are turned off (OFF) (FIG. 10A), all of the lighting units 31a to 31d are turned on (ON) (FIG. 10B), A state in which the lighting units 31a and 31d are turned on and the lighting units 31b and 31c are turned off (FIG. 10C), a state in which the lighting units 31a and 31d are turned off and the lighting units 31b and 31c are turned on (FIG. 10D), A state in which the lighting units 31a and 31b are turned on and the lighting units 31c and 31d are turned off (FIG. 10E), a state in which the lighting units 31a and 31b are turned off and the lighting units 31c and 31d are turned on (FIG. 10F), A state in which the lighting units 31a and 31c are turned on and the lighting units 31b and 31d are turned off (FIG. 10G), a state in which the lighting units 31a and 31c are turned off and the lighting units 31b and 31d are turned on (FIG. 10H), It is possible to select one of a total of eight types of lighting conditions.

Therefore, it is possible to achieve a total of 72 lighting patterns by combining nine patterns of the lighting units 21a to 21h for the doors 7a to 7h and eight patterns of the lighting units 31a to 31d for the upper lighting plate 4. FIG.

In this embodiment, all the LED light emitting elements of the lighting units 21a to 21h of the doors 7a to 7h are controlled to be ON/OFF at the same time. Also, in each of the lighting units 31a to 31d of the upper lighting plate 4, all the LED light emitting elements are controlled to be ON/OFF at the same time. However, as described above, by varying the ON/OFF timings of the LED light emitting elements, various lighting conditions can be realized.

For example, in each of the lighting units 21a to 21h, the LED boards 93 to 98 (see FIG. 6) may be made to emit light one by one. Also, the order in which the LED boards 93 to 98 emit light can be arbitrarily set. For example, the LED light-emitting elements on the LED substrates 93 to 98 may sequentially emit light from the top (or from the bottom) row by row, or may emit light in a predetermined or random order. . Also, instead of emitting light one column at a time, a plurality of rows may be illuminated at the same time.

Furthermore, a plurality of LED light emitting elements on each of the LED boards 93 to 98 may be caused to emit light one by one. In addition, the order in which a plurality of LED light-emitting elements on one LED board emit light can be arbitrarily set. For example, a plurality of LED light-emitting elements arranged on one LED substrate may be sequentially caused to emit light one by one from the end, or may be caused to emit light in a predetermined or random order. Also, instead of emitting light one by one, a plurality of LED light emitting elements may be caused to emit light at the same time.

Further, in order to make the average brightness of the image uniform, among the many LED light emitting elements attached to the lighting units 21a to 21h of the doors 7a to 7h and the lighting units 31a to 31d of the upper lighting plate 4, The brightness of the LED light emitting elements may be adjusted according to the positions and the number of the LED light emitting elements to be illuminated.

Alternatively, conversely, a large number of LED lights attached to the illumination units 21a to 21h of the doors 7a to 7h and the illumination units 31a to 31d of the upper illumination plate 4 in order to vary the brightness of the image. The brightness of the LED light emitting elements may be adjusted according to the positions and the number of the LED light emitting elements that emit light among the elements.

Next, the arrangement of the first camera 6a and the second camera 6b will be described. As shown in FIG. 9, the first camera 6a is supported by an arm 9a extending from the beam member 3b so as to be able to move in parallel along the longitudinal direction of the opening 4a of the upper lighting plate 4. As shown in FIG. The arm 9a can also change the angle of the first camera 6a with respect to the normal line of the upper illumination plate 4. FIG. The second camera 6b is supported by an arm 9b extending from the beam member 3b. Like the first camera 6a, the second camera 6b can also be translated along the longitudinal direction of the opening 4a. It is also possible to change the angle of the illumination plate 4 with respect to the normal.

In this manner, a large number of images can be captured in a short time by providing a plurality of cameras and capturing images from different positions at different angles. Also, the photographing conditions may be different between the first camera 6a and the second camera 6b.

Although some embodiments of the present invention have been described above, the embodiments of the present invention are not limited to the above specific examples, and various modifications are possible.

For example, in the embodiment described above, the configuration in which the turntable 11 is provided on the bottom plate 1 is exemplified. However, the turntable 11 may be omitted and the object to be photographed may be placed on the bottom plate 1 (or a non-rotating table).

Moreover, in the above-described embodiment, the configuration in which eight doors are provided around the bottom plate 1 and the lighting unit is attached inside each door is exemplified. However, the number of doors is not limited to this. Also, it is not essential to attach lighting units to all the doors.

Furthermore, in the above embodiment, both the lighting unit 31 attached to the upper lighting plate 4 and the lighting unit 21 attached to the side door 7 are used to provide different lighting conditions both from above and from the side. A possible configuration is illustrated. However, a configuration in which the lighting unit is provided only on either one of the upper portion and the side surface may be adopted.

Further, in the above embodiment, the lighting units 21 and 31 are assumed to emit white light when turned on. However, since the LED light-emitting element can emit light of various colors, it is possible to further increase variations in illumination conditions by varying the color of the emitted light. For example, in order to simulate the color temperature of the lighting, depending on the desired color temperature, the LED light emitting elements attached to the lighting units 21a to 21h of the doors 7a to 7h and the lighting units 31a to 31d of the upper lighting plate 4 Of these, the emission color of the LED light emitting element that emits light may be adjusted. In addition, variations in illumination conditions may be further increased by varying the intensity of the light emitted from the LED light emitting element. In addition, the intensity of emitted light may be adjusted according to the number of LED light emitting elements that emit light so that the brightness of the image is generally uniform.

Moreover, in the above embodiment, the configuration in which all of the eight doors open outward is exemplified. However, not all doors need to be configured to open.

REFERENCE SIGNS LIST 1 bottom plate 2 top plate 3a and 3b beam member 4 upper illumination plate 4a illumination plate opening 5a and 5b suspension member 6a first camera 6b second camera 7a ~7f... door, 8a~8d... post, 11... turntable, 12... cloth, 13... cross fixing ring, 21... lighting unit, 31... lighting unit, 32... LED light emitting element, 91/92... wiring board, 93 ~ 98 ... LED substrate, 99 ... LED light emitting element, 100 ... imaging device

Claims (10)

a mounting table for mounting an object as an object to be photographed;
a camera for capturing an image of the object placed on the mounting table;
a side wall provided to surround the mounting table;
a side lighting unit mounted inside the side wall;
An upper lighting plate having an upper lighting unit is further provided above the mounting table,
The side lighting unit includes a plurality of light emitting elements,
By performing control including ON/OFF control of the plurality of light emitting elements in the side lighting unit, the same object to be photographed can be captured under a plurality of lighting conditions by the camera while varying the lighting conditions of the mounting table. Take multiple images at
The camera is arranged facing the mounting table through an opening of the upper lighting plate,
An imaging device, wherein lighting conditions of the mounting table are varied by individually changing lighting states of the upper lighting units. 2. The imaging device according to claim 1, wherein said side wall can be opened and closed. 2. The imaging device of claim 1 , wherein the upper illumination plate is vertically movable. 2. The imaging device of Claim 1 , wherein the camera is movable along the aperture. 5. The imaging device according to any one of claims 1 to 4 , wherein said camera can change an angle with respect to a normal line of said upper illumination plate. The imaging device according to any one of claims 1 to 5 , wherein a plurality of said cameras are provided. The side lighting unit includes wiring boards arranged in parallel and a light emitting element substrate connected between the wiring boards,
The imaging device according to any one of claims 1 to 6 , wherein said side wall has a rack supporting said side lighting unit. The side lighting unit comprises a plurality of LED light emitting elements,
Illumination of the mounting table by changing at least one of the positions, the number, the order of emitting light, the intensity of the emitted light, and the color of the emitted light of the LED light emitting elements to emit light among the plurality of LED light emitting elements. 2. The imaging device according to claim 1, wherein conditions are varied. wherein the upper lighting unit comprises a plurality of LED light emitting elements;
Illumination of the mounting table by changing at least one of the positions, the number, the order of emitting light, the intensity of the emitted light, and the color of the emitted light of the LED light emitting elements to emit light among the plurality of LED light emitting elements. 2. The imaging device according to claim 1 , wherein conditions are varied. The imaging device according to any one of claims 1 to 9 , wherein said mounting table comprises a turntable.

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