reading device

Abstract

This invention discloses a reading device that does not dazzle the user. This device is used to obtain information about a specified product and includes a housing, a camera unit, a main illumination unit, and an auxiliary illumination unit. The housing has a reading window that allows light to pass through. The camera unit is built into the housing to capture an image through the reading window. The main illumination unit illuminates the object being photographed, located on the opposite side of the camera unit, through the reading window by emitting light towards the outside of the housing; it is positioned at the upper edge of the reading window. The auxiliary illumination unit illuminates the object being photographed through the reading window by emitting light towards the outside of the housing; it is positioned inside the main illumination unit.

Description

[0001] This application claims priority to Japanese application No. JP2021-008747, filed on January 22, 2021, and incorporates the contents of the aforementioned application in their entirety. Technical Field

[0002] Embodiments of the present invention relate to a reading device. Background Technology

[0003] Currently, sales data processing devices such as POS (Point of Sales) terminals include a reading device that retrieves barcode, QR code, or other barcode images or images of the product's appearance for specific product information. The reading device has a built-in camera unit composed of an image sensor, and a transparent reading window, separated from the casing, captures images of the barcode or the product's surface.

[0004] The aforementioned existing reading devices have a light source (such as an LED) inside the housing for illuminating the surface of the code image or product being read during image capture. When this light source is turned on to a sufficient level for reading, it can be dazzling to the user, which is highly inconvenient. Summary of the Invention

[0005] In view of the above problems, the technical problem to be solved by the present invention is to provide a reading device that does not dazzle the user.

[0006] To address the aforementioned problems, one embodiment of the present invention provides a reading device for obtaining information about a specified product, comprising a housing, a camera unit, a main illumination unit, and an auxiliary illumination unit. The housing has a reading window that transmits light. The camera unit is housed within the housing and captures an image through the reading window. The main illumination unit illuminates an illumination unit located on the opposite side of the camera unit, separated from the reading window, by emitting light towards the outside of the housing; it is disposed at the upper edge of the reading window. The auxiliary illumination unit illuminates the illumination unit of the photographed object by emitting light towards the outside of the housing through the reading window; it is disposed on the inner side compared to the main illumination unit.

[0007] Based on the aforementioned reading device, a reading device that is unlikely to dazzle the user can be provided.

[0008] In the aforementioned reading device, the main illumination unit is inclined such that the emitted light gradually moves away from the housing as it moves downward from above the reading window.

[0009] According to the aforementioned reading device, even with a lower light source output setting than before, sufficient reading performance can be ensured up to a distance slightly away from the reading window.

[0010] In the above-described reading device, the main illumination unit includes a light source and a reflective unit. The reflective unit is disposed around at least a portion of the light source and reflects the light emitted by the light source toward the object being photographed.

[0011] The aforementioned reading device can increase the light illuminating the photographed object.

[0012] In the aforementioned reading device, multiple light sources are arranged horizontally, and the reflective portion is disposed above and below the light sources.

[0013] The aforementioned reading device can increase the light illuminating the photographed object.

[0014] In the aforementioned reading device, the portion of the housing surrounding the reading window protrudes to the opposite side of the camera unit through the reading window.

[0015] With the aforementioned reading device, the product is unlikely to come into contact with the reading window.

[0016] In the above-described reading device, the main illumination unit has a first light source and a first drive unit for adjusting the light intensity of the first light source, and the auxiliary illumination unit has a second light source and a second drive unit for adjusting the light intensity of the second light source, which operates independently of the first drive unit.

[0017] According to the above-mentioned reading device, the product can be illuminated with an appropriate amount of light in a range up to and slightly away from the reading window.

[0018] The reading device described above further includes: a first diffusion member for diffusing all light from the first light source and a second diffusion member for diffusing all light from the second light source.

[0019] According to the aforementioned reading device, the user will not directly see the light from the light source and will not be dazzled.

[0020] The reading device described above also includes a shielding section that shields light from the auxiliary illumination section that is directed toward the outside of the housing without being obstructed by the reading window.

[0021] According to the above-described reading device, since the inner surface of the housing becomes difficult to be illuminated, it is possible to suppress undesirable situations caused by light reflected from the inner surface of the housing entering the camera unit. Attached Figure Description

[0022] Figure 1This is a perspective view of an example of the appearance of the reading device of the embodiment, viewed from above;

[0023] Figure 2 This is a perspective view showing an example of the appearance of the reading device of the embodiment as viewed from below;

[0024] Figure 3 This is a schematic exploded perspective view illustrating an example of the configuration of the reading device in the embodiment;

[0025] Figure 4 This is a schematic longitudinal sectional side view illustrating an example of the internal structure of the reading device of the embodiment;

[0026] Figure 5 This is a diagram illustrating an example of the configuration of the main lighting unit in an embodiment;

[0027] Figure 6 This is a perspective view showing an example of the appearance of the auxiliary lighting section of the embodiment as viewed from below;

[0028] Figure 7 This is a diagram illustrating an example of the configuration of the auxiliary lighting section in an embodiment; and

[0029] Figure 8 This diagram illustrates an example of the light travel path in the main illumination section and auxiliary illumination section of an embodiment.

[0030] Explanation of reference numerals in the attached figures

[0031] 1 Reading device

[0032] 2. Shell 21. Container 22. Front cover 23, 24. Holes

[0033] 3 Reading Window

[0034] 4. Camera Department

[0035] 5 Main lighting department

[0036] 51 Light source 52 Base plate 53 Reflecting component 531 Reflecting surface (reflecting part) 54 Diffuser plate

[0037] 6. Auxiliary Lighting Section

[0038] 61 Light source 62 Base plate 63 Mounting component 631 Inner circumferential surface 64 Diffuser film

[0039] 7. Light shield 71. Opening 72. Surface

[0040] 8 shading part Detailed Implementation

[0041] The embodiments will be described with reference to the accompanying drawings. Figure 1 This is a perspective view showing an example of the appearance of the reading device 1 of the embodiment as viewed from above. Figure 2 This is a perspective view showing the appearance of the reading device 1 as viewed from below. It should be noted that the user (operator) of the device is standing at the front side as shown in the figure.

[0042] Reading device 1 is a device for obtaining information about a specified product. Reading device 1 reads (extracts) information about the specified product from image data (camera data) obtained after photographing the product. The information about the specified product may include, for example, a code symbol attached to the surface of the product or features of the product's appearance. The code symbol may be, for example, a barcode or QR code. The features are used for object recognition processing. Object recognition processing may involve, for example, calculating the similarity (a numerical value representing the degree of similarity) between the features extracted from the camera data and the features of each product in a pre-databaseed database, and then processing products with high similarity as candidates.

[0043] It should be noted that the object recognition discovered in object recognition processing is called generic object recognition. Various recognition techniques for generic object recognition are described in the following literature.

[0044] Keiji Yanai, "Current Current Situation and Future of General Object Recognition", Journal of the Information Processing Society, Vol. 48,No. SIG16 (Keiji Yanai, "The Current Situation and Future of General Object Recognition", Journal of the Information Processing Society, Vol. 48, No. SIG16).

[0045] Furthermore, a technique for general object recognition by segmenting the image into regions corresponding to each object is described in the following literature.

[0046] Jamie Shottonら, "Semantic Texton Forests for Image Categorization and Segmentation" (Jamie Shottonら (Jamie Shotton et al.), "Semantic Texton Forests for Image Categorization and Segmentation").

[0047] The reading device 1 includes a housing 2 and a camera unit 4 (see reference). Figure 1 ), main lighting section 5 and auxiliary lighting section 6 (see reference) Figure 2 ).

[0048] The housing 2 includes a container 21 for housing the camera unit 4, and a front cover 22 that serves as a lid for opening and closing the opening of the container 21. As an example of the shape of the housing 2, the container 21 is a rectangular box shape, and the front cover 22 is a quadrilateral shape.

[0049] The housing 2 has a reading window 3. The reading window 3 is made of, for example, a transparent resin or glass plate and has the property of transmitting light.

[0050] Here, Figure 3 This is a simplified exploded perspective view illustrating an example of the configuration of the reading device 1. The front cover 22 has a frame-like shape with a hole 23 in the center for embedding the reading window 3. Furthermore, the front cover 22 has a hole 24 above the reading window 3 for embedding the main illumination unit 5.

[0051] Furthermore, the front cover 22 has a shape in which the outer periphery, which surrounds the reading window 3, protrudes forward compared to the portion where the hole 23 is provided. Here, "forward" refers to the front for the user of the reading device 1, that is, the side opposite to the camera section 4 across the reading window 3.

[0052] Based on the shape described above, even if the user performs an action to read the product using the reading device 1 at a position closest to the reading window 3, the product is less likely to come into contact with the reading window 3. More specifically, even if the user brings the product too close to the reading window 3, the product is more likely to touch the outer periphery of the front cover 22 before the reading window 3. Therefore, this shape makes it less likely for the reading window 3 to be damaged or soiled by the product.

[0053] Camera Department 4 (see reference) Figure 1 For example, it has an image sensor such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal-Oxide Semiconductor) built into the inside of the housing 2 when the readout window 3 is in front of it. The camera unit 4 captures an image through the readout window 3. More specifically, the camera unit 4 captures an image of a product or similar item through the readout window 3 and outputs the image data (camera data) obtained through the camera.

[0054] The main illumination unit 5 is disposed at the upper edge of the reading window 3, and illuminates the object being photographed (e.g., a product) located on the opposite side of the camera unit 4 through the reading window 3 by emitting light toward the outside of the housing 2. In addition, the main illumination unit 5 is inclined so that the emitted light gradually moves away from the housing 2 from the top of the reading window 3 downwards.

[0055] Auxiliary lighting section 6 (refer to) Figure 2 and Figure 3The auxiliary lighting unit 6 is located inside the main lighting unit 5 and emits light towards the outside of the housing 2 through the reading window 3 to illuminate the subject being photographed. Furthermore, the auxiliary lighting unit 6 is also angled so that the emitted light gradually moves away from the housing 2 from above the reading window 3 downwards.

[0056] Furthermore, the reading device 1 includes a light shield 7. Here, Figure 4 This is a schematic longitudinal sectional side view showing an example of the internal structure of the reading device 1 according to the embodiment. The light shield 7 is shaped to open a space between itself and the inner surface of the container 21, and has an opening 71 on the side of the reading window 3. The camera unit 4 is fixed on the inner surface 72 of the light shield 7 opposite to the reading window 3.

[0057] Return to Figure 3 A slit 73 is provided on the upper edge of the light shield 7 to receive light emitted from the auxiliary lighting unit 6. Furthermore, the reading device 1 includes a light shield 8. The light shield 8 is shaped like an eave, blocking a portion of the light entering through the slit 73.

[0058] Figure 5 This diagram illustrates an example of the configuration of the main illumination unit 5. The main illumination unit 5 includes a base plate 52 on which a light source 51 (first light source) is mounted, a reflector 53, and a diffuser plate 54 (first diffuser). The light source 51 is, for example, an LED (Light Emitting Diode). The light intensity of the light source 51 can be varied by changing the value of the driving current. The base plate 52 holds, for example, multiple light sources 51 arranged in a row. Hereinafter, when referring to a group of multiple light sources 51, it will be referred to as a group of light sources 51. The base plate 52 is the first drive unit that performs the adjustment of the light intensity of the main illumination unit 5. The adjustment of the light intensity of the main illumination unit 5 is performed independently of the auxiliary illumination unit 6.

[0059] The reflective component 53 is in the shape of a frame surrounding the light sources 51 arranged on the base plate 52, and its inner peripheral surface becomes a reflective surface 531 with the property of reflecting light. For example, the reflective component 53 has four reflective surfaces 531, such as the reflective surfaces 531 surrounding the light source group 51 in the four directions of up, down, left and right.

[0060] The reflective surface 531 is an example of a reflective part. The reflective surface 531 reflects the light emitted by the light source 51 and directs the light path toward the product (the object being photographed) located on the opposite side of the camera part 4, separated by the reading window 3.

[0061] In this embodiment, four reflective surfaces 531 are provided, but the number of reflective surfaces 531 is not limited in practice. For example, in an embodiment where multiple light sources 51 are arranged laterally as in this embodiment, it is effective to increase the amount of light incident on the diffuser plate 54 when reflective surfaces 531 are arranged above and below the group of light sources 51.

[0062] Furthermore, when at least the reflective surface 531 of the reflective component 53 is made of a material that easily reflects light, such as gold plating or white casting, it is very good because it easily increases the amount of light incident on the diffuser plate 54.

[0063] The diffuser 54 diffuses light absorbed from one side and emitted from the other. In this example, the diffuser 54 absorbs and diffuses light emitted from the light source 51 and light reflected from the base plate 52 and the reflecting surface 531. The diffuser 54 diffuses not just a portion of the light from the light source 51, but all of it. Therefore, the user will not directly see the light from the light source from any position, preventing glare.

[0064] The main lighting unit 5 described above is designed to provide sufficient illumination within a specified range (e.g., as described later). Figure 4 The output of the light source 51 is set in the manner of displaying goods in the space of the range A), and the material of the diffuser plate 54 is selected. It should be noted that the above-mentioned "able to provide sufficient illumination" is intended to obtain a brightness level that allows for the full extraction of product information based on the image data captured by the camera unit 4.

[0065] Figure 6 This is a perspective view showing an example of the appearance of the auxiliary lighting unit 6 as viewed from below. Figure 7 This diagram illustrates an example of the configuration of the auxiliary lighting unit 6. The auxiliary lighting unit 6 includes a base plate 62 for mounting a light source 61 (second light source), a mounting component 63, and a diffusion film 64 (second diffusion component). The light source 61 is, for example, an LED. The base plate 62 holds, for example, multiple light sources arranged in a row. Hereinafter, when referring to a group of multiple light sources 61, it will be referred to as a light source 61 group. The base plate 62 is a second drive unit that adjusts the light intensity of the auxiliary lighting unit 6. The adjustment of the light intensity of the auxiliary lighting unit 6 is performed independently of the main lighting unit 5.

[0066] The mounting component 63 is positioned between the base plate 62 and the diffuser film 64, creating a suitable space between the light source 61 assembly and the diffuser film 64 for relative positioning. Furthermore, the mounting component 63 has an inner peripheral surface 631 that surrounds the space sandwiched between the base plate 62 and the diffuser film 64. Light emitted from the light source 61 is incident on the diffuser film 64 directly or by reflection from the surface of the base plate 62 and the inner peripheral surface 631. The inner peripheral surface 631 may also have reflective properties.

[0067] The diffuser 64 diffuses light absorbed from one side and emitted from the other. In this example, the diffuser 64 absorbs light emitted from the light source 61 and diffuses light emitted from the surface and inner peripheral surface 631 of the base plate 62 after the light source 61 has emitted it. It should be noted that the diffuser 64 can also be a film thinner than the diffuser plate 54, for example, a thin sheet-like film with pleats on one side. The diffuser 64 diffuses not a portion of the light from the light source 61, but all of the light from the light source 61. Thus, the user will not directly see the light from the light source from any position, preventing glare. It should also be noted that the diffuser 64 can diffuse light traveling towards the outer side of the housing 2 and into the space in front of the reading window 3 for the user.

[0068] The auxiliary lighting unit 6 described above is designed to provide sufficient illumination within a specified range (e.g., as described later). Figure 4 The output of the light source 61 is set in the spatial manner of the goods in the range B), and the material of the diffusion film 64 is selected. It should be noted that the above-mentioned "able to provide sufficient illumination" is intended to obtain a brightness that is sufficient to extract product information based on the image data captured by the camera unit 4.

[0069] Figure 8 This diagram illustrates an example of the light path in the main lighting section 5 and the auxiliary lighting section 6. (Refer to...) Figure 8 and Figure 4 An example of the light path in the main lighting section 5 and the auxiliary lighting section 6 is shown to illustrate the illumination of the main lighting section 5 and the auxiliary lighting section 6.

[0070] The light emitted by the light source 51 of the main lighting unit 5 travels downwards and diagonally forward from above the reading window 3. The light emitted by the light source 51 and directly incident on the diffuser plate 54, and the light emitted by the light source 51 and reflected by the reflector 53 and incident on the diffuser plate 54, are diffused by the diffuser plate 54 and travel towards the space outside the housing 2 and in front of the reading window 3 for the user, illuminating that space.

[0071] The range illuminated by the main lighting unit 5, for example, is within... Figure 4 The area indicated by the dotted line marked with the additional symbol A (hereinafter referred to as range A). It should be noted that the "illumination range" mentioned above refers to the brightness level at which product information can be fully extracted based on the data of the image captured by the camera unit 4.

[0072] like Figure 4 As shown, the area A illuminated by the main illumination unit 5 may be slightly farther away from the reading window 3. However, the user usually performs the action of reading the product by using the reading device 1 from the closest position to the reading window 3. Therefore, the reading device 1 uses the auxiliary illumination unit 6 to cover the closest position of the reading window 3.

[0073] like Figure 8 As shown, the light emitted by the light source 61 of the auxiliary lighting unit 6 travels diagonally forward and downward from the inside and above the reading window 3. The light emitted by the light source 61 is diffused by the diffusion film 64, and after passing through the reading window 3, it travels to the outside of the housing 2 and into the space in front of the reading window 3 from the user's perspective, illuminating that space.

[0074] The range illuminated by the auxiliary lighting unit 6, for example, is within... Figure 4 The area indicated by the dotted symbol B (hereinafter referred to as range B) is the outermost area of ​​the reading window 3, adjacent to it. Furthermore, range B includes the bottommost part of the reading window 3. In this way, product information can be read without exception in the space in front of the reading window 3, which is visible to the user.

[0075] In addition, the lighting of auxiliary lighting unit 6, in Figure 4 The area marked C (hereinafter referred to as range C) is blocked by the light-shielding part 8. The light-shielding part 8 blocks light other than that passing through the reading window towards the outside of the housing 2. That is, range C is not illuminated by the auxiliary illumination part 6. In this way, since the inner surface of the light shield 7 becomes difficult to illuminate, it is possible to suppress the undesirable situation caused by light reflected from the inner surface of the light shield 7 (the inner surface of the housing 2) incident on the imaging part 4.

[0076] It should be noted that the reading device 1 includes a control unit and a memory unit. The memory unit is composed of a storage device such as an SSD (Solid State Memory) or flash memory. The memory unit stores control programs, product master files, camera settings, etc.

[0077] The control unit is composed of a computer equipped with a CPU (Central Processing Unit), ROM (Read Only Memory), and RAM (Random Access Memory). The CPU controls the overall operation of the reading device 1. The ROM stores various programs and data, such as the program for driving the CPU. The RAM stores the image data of the camera unit 4. In addition, the RAM is used as the working area of ​​the CPU to expand the various programs and data stored in the ROM or memory unit. The control unit operates according to the control program stored in the ROM or memory unit and expanded in the RAM, executing various control processes of the reading device 1. The CPU outputs adjustment data of the light intensity of the light source 51 and the light source 61 set in the RAM to the first drive unit and the second drive unit. The first drive unit controls the light intensity of the light source 51, and the second drive unit controls the light intensity of the light source 61.

[0078] Based on the above configuration, the reading device 1 illuminates the surface of the product that the user is pointing at the reading window 3 through the main lighting unit 5 and the auxiliary lighting unit 6, and captures an image of the surface of the product that has been captured by the camera unit 4. Furthermore, after obtaining the code symbol attached to the surface of the product or the characteristic quantity of the product's appearance from the image data output from the camera unit 4, the reading device 1 queries a predetermined database to obtain information obtained by decoding the code symbol or information associated with the characteristic quantity, thereby identifying the product.

[0079] It should be noted that, in addition to the output of camera data in the reading device 1, the extraction of code symbols or feature quantities from the camera data, up to the designation of the product, can also be performed by a sales data processing device such as a POS terminal device or an external device.

[0080] In the operation of the reading device 1 described above, the main illumination unit 5 illuminates a range A slightly away from the reading window 3, and the auxiliary illumination unit 6 illuminates a range B near the reading window 3. Therefore, the reading device 1 can illuminate the product up to a range slightly away from the reading window 3.

[0081] Currently, most devices integrate the light source and camera unit within the housing. With such a configuration, when the light source is illuminated to ensure sufficient reading performance, it can often cause glare for the user. Furthermore, when the light source output is strong, if a product is pressed against the reading window, the captured image may be overexposed, failing to capture product information. However, suppressing the light source output risks insufficient reading performance. In contrast, the reading device 1 of this embodiment prevents or mitigates these undesirable situations in existing configurations.

[0082] That is, in the reading device 1 of this embodiment, since the main illumination part 5, which is provided on the upper edge of the reading window 3 and emits light toward the outside of the housing 2, is used for illumination, sufficient reading performance can be ensured even if the output of the light source 51 is set lower than before.

[0083] In addition, the main lighting unit 5 uses light that has passed through the diffuser plate 54 for illumination, so the user will not directly see the light emitted by the light source 51, thereby suppressing the occurrence of an inappropriate situation that would dazzle the user.

[0084] Furthermore, in the reading device 1 of this embodiment, since the configuration is designed to illuminate the position closest to the reading window 3 that is difficult to reach by the illumination of the main lighting unit 5 through the auxiliary lighting unit 6, the readable range of the product can be expanded, and in particular, the area near the reading window 3 that is easy for the user to use can be included in the readable range.

[0085] Furthermore, since the auxiliary lighting unit 6 uses light that has passed through the diffusion film 64 for illumination, the user will not directly see the light emitted by the light source 61, thereby suppressing the occurrence of an inappropriate situation that would cause the user to feel dazzled.

[0086] Furthermore, the auxiliary lighting unit 6 also illuminates the inside of the reading window 3, so the object being photographed can be illuminated even when it is pressed against the reading window 3. Therefore, the reading device 1 of this embodiment can also photograph the object being photographed when it is pressed against the reading window 3.

[0087] Furthermore, the reading device 1 of this embodiment has a range where the light emitted by the auxiliary illumination unit 6 provided inside the housing 2 poses a risk of interfering with the imaging unit 4 (e.g., Figure 4 The light-blocking part 8 blocks the light within the range C). In this way, even if the auxiliary lighting part 6 and the camera part 4 are both built into the housing 2, the light emitted by the auxiliary lighting part 6 can be suppressed, thus achieving good reading performance.

[0088] It should be noted that, in practice, the inner peripheral surface 631 surrounding the space sandwiched between the base plate 62 and the diffusion film 64 can also be made of a material that readily reflects light. With such a configuration, an increase in the amount of light incident on the diffusion film 64 can be expected.

[0089] Suppose a device uses a light source to illuminate a range A slightly away from the reading window 3 and a range B near the reading window 3. When the light source is illuminating range A with an output that ensures sufficient reading performance, sometimes the image captured in range B is overexposed, and product information cannot be obtained. Furthermore, even if a portion of the light from the light source is diffused using a diffuser or similar material and its brightness is adjusted, the undiffused portion of the light can still be directly seen by the user, sometimes causing glare. For example, short children may be able to see the light directly from the light source.

[0090] The reading device 1 of this embodiment solves this problem. It has two lighting units: a main lighting unit 5 and an auxiliary lighting unit 6. Furthermore, the main lighting unit 5 and the auxiliary lighting unit 6 can each independently adjust the light intensity. As a result, the product can be illuminated with an appropriate amount of light, up to a range slightly away from the reading window 3. Moreover, the light from the main lighting unit 5 and the auxiliary lighting unit 6 illuminates the product through the diffuser plate 54 and the diffuser film 64, so the user does not directly see the light from the light source.

[0091] While several embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included within the scope and spirit of the invention, and are also included within the scope of the invention as described in the claims and its equivalents.

Claims

1. A reading device for obtaining information about a specified product, characterized in that, have: The housing has a reading window that allows light to pass through, and the portion surrounding the reading window protrudes outward. The camera unit, built into the housing, captures images of the object located outside the housing through the reading window; The main illumination unit is the illumination unit that illuminates the object being photographed. It is disposed in the upper edge of the reading window in the portion that surrounds the reading window that protrudes outward, and is arranged at an angle such that the light emitted from this portion gradually moves away from the housing from above the reading window towards the bottom. as well as The auxiliary lighting unit illuminates the camera object by emitting light through the reading window toward the outside of the housing. The main lighting unit emits light to the outside of the housing without passing through the reading window, illuminating the space outside the housing and, from the user's perspective, the area in front of the reading window. The auxiliary lighting unit is located near the upper side of the reading window of the housing. It emits light through the reading window to the outside of the housing. The light is angled so that it gradually moves away from the housing from the top of the reading window downwards. Therefore, it illuminates the space that is closer to the reading window than the space illuminated by the main lighting unit.

2. The reading device according to claim 1, wherein, The main lighting unit includes a light source and a reflector. The reflector is disposed around at least a portion of the light source and reflects the light emitted by the light source toward the camera object.

3. The reading device according to claim 2, wherein, Multiple light sources are arranged horizontally. The reflective portion is disposed above and below the light source.

4. The reading device according to claim 1, wherein, The main lighting unit has a first light source and a first driving unit that adjusts the light intensity of the first light source, and the auxiliary lighting unit has a second light source and a second driving unit that adjusts the light intensity of the second light source and operates independently of the first driving unit.

5. The reading device according to claim 4, wherein, It also has: A first diffusion component that diffuses all light from the first light source and a second diffusion component that diffuses all light from the second light source.

6. The reading device according to claim 1, wherein, It also has: The shielding section shields the light from the auxiliary lighting section that is directed toward the outside of the housing without being obstructed by the reading window.

Images