A reader for reading infrared invisible ink

Abstract

This utility model relates to the field of reading device technology, and discloses a reader for reading infrared invisible ink, including a housing, a control circuit board, an infrared light source, a camera, and a display screen. The housing has a first axis and an outer peripheral surface arranged around the first axis for gripping. Along the first axis, one end face of the housing has an observation window, and the other end face has a reading window. The control circuit board, the infrared light source, and the camera are all located inside the housing. The infrared light source and the camera are both facing the reading window. The display screen is located at the observation window. The infrared light source, the camera, and the display screen are all electrically connected to the control circuit board. With this reader, the user can directly hold the outer peripheral surface of the housing and point the reading end towards the area to be read to perform the infrared invisible ink reading operation, which is convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of reading device technology, and more specifically, relates to a reader for reading infrared invisible ink. Background Technology

[0002] Infrared invisible ink is widely used in anti-counterfeiting labels and secure communications due to its strong information concealment. For example, anti-counterfeiting labels can be printed on product packaging boxes using infrared invisible ink. In this case, the anti-counterfeiting labels are invisible to the naked eye, which can prevent the anti-counterfeiting information from being discovered and destroyed in advance. Consumers can read the information through relevant reading devices to verify the authenticity of the product. However, some professional infrared readers are relatively large and not easy to carry, which is inconvenient for consumers' daily use. Utility Model Content

[0003] The main purpose of this invention is to provide a reader for reading infrared invisible ink, which is easy to use.

[0004] According to a first aspect of the present invention, a reader for reading infrared invisible ink is provided, comprising a housing, a control circuit board, an infrared light source, a camera, and a display screen. The housing has a first axis and an outer peripheral surface for gripping arranged around the first axis. Along the first axis, one end face of the housing has an observation window, and the other end face has a reading window. The control circuit board, the infrared light source, and the camera are all disposed inside the housing. The infrared light source and the camera are both facing the reading window. The display screen is disposed at the observation window. The infrared light source, the camera, and the display screen are all electrically connected to the control circuit board.

[0005] In a specific embodiment of this utility model, the housing includes a housing body and a mounting shell. The housing body has a first axis, an outer peripheral surface, an observation window, and a reading window. The mounting shell is connected inside the housing body. The control circuit board, the infrared light source, and the camera are all connected to the mounting shell.

[0006] In a specific embodiment of this utility model, the mounting shell has a cavity, the opening of the cavity faces the reading window, the cavity has a first cavity wall and a second cavity wall, the first cavity wall and the second cavity wall are symmetrically disposed on opposite sides of the bottom surface of the cavity, the angle between the first cavity wall, the second cavity wall and the bottom surface of the cavity is an obtuse angle, the first cavity wall has a first mounting hole, the second cavity wall has a second mounting hole, and the bottom surface of the cavity has a clearance hole, which is directly opposite the reading window along the first axis.

[0007] The infrared light source includes a first light source and a second light source. The first light source and the second light source are respectively connected to the first mounting hole and the second mounting hole. The control circuit board and the camera are connected to the end of the mounting shell away from the reading window along the first axis. The camera is located on the side of the control circuit board close to the reading window and faces the clearance hole.

[0008] In a specific embodiment of this utility model, the groove cavity further has a third cavity wall surface and a fourth cavity wall surface, the third cavity wall surface connecting the first cavity wall surface and the bottom surface of the groove cavity, and the fourth cavity wall surface connecting the second cavity wall surface and the bottom surface of the groove cavity.

[0009] In a specific embodiment of this utility model, along the first axis, the end of the mounting shell away from the observation window has a mounting groove, the clearance hole communicates with the mounting groove, and the camera is connected to the mounting groove.

[0010] In a specific embodiment of this utility model, a light filter is further included. The light filter is used to filter visible light. The light filter is disposed on the bottom surface of the mounting groove and covers the clearance hole. The camera is located on the side of the light filter away from the reading window along the first axis.

[0011] In a specific embodiment of this utility model, the mounting shell also has an annular weight-reducing groove at one end along the first axis away from the reading window, and the weight-reducing groove is arranged around the mounting groove.

[0012] In a specific embodiment of this utility model, the end face of the housing with the observation window intersects with the first axis, and the end face of the housing with the reading window is perpendicular to the first axis.

[0013] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0014] This utility model discloses a reader for reading infrared invisible ink. In practical applications, the area to be read is printed with an infrared invisible ink mark. To obtain this mark information, the end of the housing with the reading window faces the area to be read, and the infrared light source is activated. The infrared light emitted by the light source shines on the area to be read through the reading window. The infrared invisible ink absorbs infrared light of a specific wavelength, while its surrounding area strongly reflects it, thus forming a significant contrast between light and dark in the infrared band. The camera captures this contrast image composed of reflected infrared light through the reading window and converts it into an electrical signal, which is then transmitted to the control circuit board. The control circuit board processes the signal, generates a clear image, and finally displays it on the display screen. Since one end of the reader along the first axis is the reading end and the other end is the display end, and the housing has an outer peripheral surface for gripping, the user can directly hold the outer peripheral surface of the housing and face the reading end towards the area to be read to perform the infrared invisible ink reading operation, making it convenient to use. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a front view of a reader for reading infrared invisible ink according to an embodiment of this utility model;

[0017] Figure 2 This is a perspective view of a reader for reading infrared invisible ink according to an embodiment of the present invention;

[0018] Figure 3 This is a structural diagram of the mounting shell, control circuit board, infrared light source, and filter in an embodiment of this utility model.

[0019] Figure 4 This is a structural diagram of the mounting shell, infrared light source, and camera in accordance with an embodiment of this utility model;

[0020] Figure 5 This is a perspective view of the mounting shell according to an embodiment of the present utility model.

[0021] In the figure, 1. Shell; 100. First axis; 1101. Outer peripheral surface; 1102. Observation window; 1103. Reading window; 11. Shell body; 12. Mounting shell; 1201. Cavity; 1201A. First cavity wall; 1201B. Second cavity wall; 1201C. Third cavity wall; 1201D. Fourth cavity wall; 1202. First mounting hole; 1203. Second mounting hole; 1204. Clearance hole; 1205. Mounting groove; 1206. Weight reduction groove; 2. Control circuit board; 3. Infrared light source; 31. First light source; 32. Second light source; 4. Camera; 5. Display screen; 6. Filter. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] Reference Figures 1 to 5 As shown, a reader for reading infrared invisible ink according to a preferred embodiment of this application includes a housing 1, a control circuit board 2, an infrared light source 3, a camera 4, and a display screen 5. The housing 1 has a first axis 100 and an outer peripheral surface 1101 for gripping arranged around the first axis 100. Along the first axis 100, one end face of the housing 1 has an observation window 1102, and the other end face has a reading window 1103. The control circuit board 2, the infrared light source 3, and the camera 4 are all disposed inside the housing 1. The infrared light source 3 and the camera 4 are both facing the reading window 1103. The display screen 5 is disposed at the observation window 1102. The infrared light source 3, the camera 4, and the display screen 5 are all electrically connected to the control circuit board 2.

[0024] In practical applications, the area to be read is printed with an infrared invisible ink mark. When acquiring this mark information, the end of the housing 1 with the reading window 1103 is oriented towards the area to be read, and the infrared light source 3 is activated. The infrared light emitted by the light source is irradiated onto the area to be read through the reading window 1103. The infrared invisible ink absorbs infrared light of a specific wavelength, while its surrounding area strongly reflects it, thus forming a significant contrast between light and dark in the infrared band. The camera 4 captures this contrast image composed of reflected infrared light through the reading window 1103 and converts it into an electrical signal, which is then transmitted to the control circuit board 2. The control circuit board 2 processes the signal, generates a clear image, and finally displays it on the display screen 5. Since one end of the reader along the first axis 100 is the reading end and the other end is the display end, and the housing 1 has an outer peripheral surface 1101 for holding, the user can directly hold the outer peripheral surface 1101 of the housing 1 and oriented the reading end towards the area to be read to perform the infrared invisible ink reading operation, which is convenient to use.

[0025] In this embodiment, the end face of the housing 1 with the observation window 1102 intersects with the first axis 100, and the end face of the housing 1 with the reading window 1103 is perpendicular to the first axis 100. That is, the display screen 5 is tilted. In practical applications, the display screen 5 faces the side where the user is located, which makes it convenient for the user to read the information on the display screen 5.

[0026] It should be noted that a battery is also provided inside the housing 1. A switch and a control button are provided on the outer peripheral surface 1101 of the housing 1. The battery, switch and control button are all electrically connected to the control circuit board 2. The battery serves as a power supply device, providing power to the control circuit board 2, the infrared light source 3, the camera 4 and the display screen 5. The switch is the main control component of the entire circuit, used to control the on and off of the circuit. The control button is used to input operation commands to the control circuit board 2 to control the infrared light source 3 to work.

[0027] In this embodiment, the housing 1 includes a housing body 11 and a mounting shell 12. The housing body 11 has a first axis 100, an outer peripheral surface 1101, an observation window 1102, and a reading window 1103. The mounting shell 12 is connected inside the housing body 11. The control circuit board 2, the infrared light source 3, and the camera 4 are all connected to the mounting shell 12. The structure is simple and can stably connect the control circuit board 2, the infrared light source 3, and the camera 4 inside the housing body 11, and is easy to assemble. Specifically, the housing body 11 is frustum-shaped, and the mounting shell 12 is fixedly connected inside the housing body 11 by plugging and fixing. The housing body 11 includes a detachable upper shell and a lower shell to facilitate the assembly of the mounting shell 12 into the housing body 11.

[0028] In this embodiment, the mounting shell 12 has a cavity 1201, the opening of which faces the reading window 1103. The bottom surface of the cavity 1201 is perpendicular to the first axis 100. The cavity 1201 has a first cavity wall surface 1201A and a second cavity wall surface 1201B, which are symmetrically arranged on opposite sides of the bottom surface of the cavity 1201. The angle between the first cavity wall surface 1201A, the second cavity wall surface 1201B and the bottom surface of the cavity 1201 is an obtuse angle. The first cavity wall surface 1201A has a first mounting hole 1202, and the second cavity wall surface 1201B has a second mounting hole 1203. The bottom surface of the cavity 1201 has a clearance hole 1204, which is directly opposite the reading window 1103 along the first axis 100. The infrared light source 3 includes a first light source 31 and a second light source 32. A light source 31 and a second light source 32 are respectively connected to the first mounting hole 1202 and the second mounting hole 1203. The control circuit board 2 and the camera 4 are connected to the end of the mounting shell 12 along the first axis 100 away from the reading window 1103. The camera 4 is located on the side of the control circuit board 2 close to the reading window 1103. The camera 4 faces the clearance hole 1204. The camera 4 acquires images through the clearance hole 1204, the slot of the cavity 1201, and the reading window 1103. Specifically, the first light source 31 and the second light source 32 are respectively set on the first cavity wall surface 1201A and the second cavity wall surface 1201B. The structure is simple, the installation is convenient, and the light can be smoothly irradiated from the reading window 1103 onto the area to be read. For example, the angle between the first cavity wall surface 1201A, the second cavity wall surface 1201B and the bottom surface of the cavity 1201 is 135°.

[0029] For example, the axis of the clearance hole 1204 coincides with the first axis 100.

[0030] In this embodiment, the first light source 31 and the second light source 32 have the same wavelength, and the control button controls the operation of the first light source 31 and the second light source 32.

[0031] In another embodiment, the first light source 31 and the second light source 32 have different wavelengths, so the reader of this application can detect infrared invisible ink of different wavelengths; the specific wavelengths of the first light source 31 and the second light source 32 are set according to the actual application, and this application does not limit them; in addition, since the first light source 31 and the second light source 32 have different wavelengths, there are two control buttons, and the two control buttons control the first light source 31 and the second light source 32 to work respectively.

[0032] In this embodiment, the cavity 1201 also has a third cavity wall 1201C and a fourth cavity wall 1201D. The third cavity wall 1201C connects the first cavity wall 1201A and the bottom surface of the cavity 1201, and the fourth cavity wall 1201D connects the second cavity wall 1201B and the bottom surface of the cavity 1201. Thus, the camera 4 is at a certain distance from the reading window 1103, which is beneficial for the acquisition of graphic information.

[0033] In this embodiment, along the first axis 100, the end of the mounting shell 12 away from the observation window 1102 has a mounting groove 1205, and the clearance hole 1204 communicates with the mounting groove 1205. The camera 4 is connected in the mounting groove 1205. Specifically, the mounting groove 1205 plays a positioning role, which facilitates the assembly of the camera 4 and ensures the stable setting of the camera 4.

[0034] In this embodiment, the reader also includes a filter 6, which is used to filter visible light. The filter 6 is disposed on the bottom surface of the mounting groove 1205 and covers the clearance hole 1204. The camera 4 is located on the side of the filter 6 along the first axis 100 away from the reading window 1103. Specifically, the filter 6 can filter visible light and other stray light interference, and the camera 4 can capture clearer image signals. The mounting groove 1205 can also be used to position the filter 6 for installation.

[0035] In this embodiment, the mounting shell 12 also has an annular weight reduction groove 1206 at one end of the first axis 100 away from the reading window 1103. The weight reduction groove 1206 is arranged around the mounting groove 1205, and the arrangement of the weight reduction groove 1206 enables the mounting shell 12 to have the characteristics of being lightweight.

[0036] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A reader for reading infrared invisible ink, characterized in that, The device includes a housing (1), a control circuit board (2), an infrared light source (3), a camera (4), and a display screen (5). The housing (1) has a first axis (100) and an outer peripheral surface (1101) for gripping arranged around the first axis (100). Along the first axis (100), one end face of the housing (1) has an observation window (1102), and the other end face has a reading window (1103). The control circuit board (2), the infrared light source (3), and the camera (4) are all located inside the housing (1). The infrared light source (3) and the camera (4) are all facing the reading window (1103). The display screen (5) is located at the observation window (1102). The infrared light source (3), the camera (4), and the display screen (5) are all electrically connected to the control circuit board (2).

2. The reader for reading infrared invisible ink according to claim 1, characterized in that, The housing (1) includes a housing body (11) and a mounting shell (12). The housing body (11) has the first axis (100), the outer peripheral surface (1101), the observation window (1102) and the reading window (1103). The mounting shell (12) is connected inside the housing body (11). The control circuit board (2), the infrared light source (3) and the camera (4) are all connected to the mounting shell (12).

3. The reader for reading infrared invisible ink according to claim 2, characterized in that, The mounting housing (12) has a cavity (1201), the opening of which faces the reading window (1103). The cavity (1201) has a first cavity wall (1201A) and a second cavity wall (1201B). The first cavity wall (1201A) and the second cavity wall (1201B) are symmetrically arranged on opposite sides of the bottom surface of the cavity (1201). The angle between the second cavity wall (1201B) and the bottom surface of the groove (1201) is an obtuse angle. The first cavity wall (1201A) has a first mounting hole (1202), the second cavity wall (1201B) has a second mounting hole (1203), and the bottom surface of the groove (1201) has a clearance hole (1204). Along the first axis (100), the clearance hole (1204) is directly opposite the reading window (1103). The infrared light source (3) includes a first light source (31) and a second light source (32). The first light source (31) and the second light source (32) are respectively connected to the first mounting hole (1202) and the second mounting hole (1203). The control circuit board (2) and the camera (4) are connected to the end of the mounting shell (12) along the first axis (100) away from the reading window (1103). The camera (4) is located on the side of the control circuit board (2) close to the reading window (1103). The camera (4) is facing the clearance hole (1204).

4. The reader for reading infrared invisible ink according to claim 3, characterized in that, The cavity (1201) also has a third cavity wall (1201C) and a fourth cavity wall (1201D). The third cavity wall (1201C) connects the first cavity wall (1201A) and the bottom surface of the cavity (1201), and the fourth cavity wall (1201D) connects the second cavity wall (1201B) and the bottom surface of the cavity (1201).

5. The reader for reading infrared invisible ink according to claim 4, characterized in that, Along the first axis (100), the mounting shell (12) has a mounting groove (1205) at one end away from the observation window (1102), the clearance hole (1204) communicates with the mounting groove (1205), and the camera (4) is connected in the mounting groove (1205).

6. The reader for reading infrared invisible ink according to claim 5, characterized in that, It also includes a filter (6) for filtering visible light. The filter (6) is disposed on the bottom surface of the mounting groove (1205) and covers the clearance hole (1204). The camera (4) is located on the side of the filter (6) away from the reading window (1103) along the first axis (100).

7. The reader for reading infrared invisible ink according to claim 5, characterized in that, The mounting housing (12) also has an annular weight-reducing groove (1206) at one end along the first axis (100) away from the reading window (1103), the weight-reducing groove (1206) being arranged around the mounting groove (1205).

8. The reader for reading infrared invisible ink according to claim 1, characterized in that, The end face of the housing (1) with the observation window (1102) intersects with the first axis (100), and the end face of the housing (1) with the reading window (1103) is perpendicular to the first axis (100).

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