A barcode scanning module

Abstract

This utility model discloses a barcode scanning module, including a housing. An image imaging lens is fixedly connected to one end of the inner wall of the housing, and an illumination linear lens is installed on one side of the outer wall of the image imaging lens. A circuit board is installed at the rear end of the housing. When the light-emitting diode emits light, it emits a linear light beam through the light-transmitting rectangular aperture and the illumination linear lens, illuminating the barcode. The barcode image passes through the aperture, then through the image imaging lens, and reaches the linear image sensor. The linear image sensor transmits the barcode image data to the microprocessor. The microprocessor completes the barcode decoding and sends the barcode data to the corresponding device through the interface. This scanning module only requires an integrated housing, which makes the consistency between the emitted illumination light and the received image signal higher, the decoding more stable, the assembly structure simpler, and the efficiency higher.

Description

Technical Field

[0001] This utility model relates to the field of barcode scanning technology, and in particular to a barcode scanning module. Background Technology

[0002] The barcode scanning module has the function of independently completing barcode scanning and decoding. It is one of the key components for secondary development of barcode scanners. It is small in size and highly integrated, and can be easily embedded into equipment in various industries such as mobile phones, tablets, printers, production line equipment, and medical devices. Various industry application function programs can be written as needed.

[0003] The following problems exist: Because the illumination light and the received image signal in the barcode scanning module are usually not on the same horizontal plane, the scanning consistency is poor and the decoding is prone to errors. Therefore, the staff needs to repeat the process many times to successfully decode the barcode. The whole process not only wastes the staff's time, but also affects the scanning efficiency. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A barcode scanning module includes a housing, an image imaging lens fixedly connected to one end of the inner wall of the housing, an illumination linear lens mounted on one side of the outer wall of the image imaging lens, and a circuit board mounted at the rear end of the housing. The image imaging lens and the illumination linear lens are both arranged on the same horizontal plane.

[0007] As a further description of the above technical solution: Both ends of the outer wall on one side of the housing are provided with aperture holes and light-transmitting rectangular holes. The image imaging lens is installed inside the aperture holes, and the illumination linear lens is installed inside the light-transmitting rectangular holes.

[0008] As a further description of the above technical solution: A linear image sensor is mounted on the front end of the circuit board, and the linear image sensor is located inside the housing.

[0009] As a further description of the above technical solution: A light-emitting diode is mounted directly behind the linear illumination lens, and a light-emitting shield is fixedly connected to the rear end of the light-emitting diode. The light-emitting diode is soldered onto a circuit board.

[0010] As a further description of the above technical solution: The circuit board is also soldered with a microprocessor and a communication interface.

[0011] Compared with existing technologies, the advantages of this invention are as follows: When the light-emitting diode emits light, it emits a linear light beam through a light-transmitting rectangular aperture and an illumination linear lens, which illuminates the barcode. The barcode image passes through an aperture, then through an image imaging lens, and reaches a linear image sensor. The linear image sensor transmits the barcode image data to a microprocessor, which completes the barcode decoding and sends the barcode data to the corresponding device through an interface. This scanning module only requires an integrated housing, which makes the emitted illumination light and the received image signal more consistent, the decoding more stable, and the assembly structure simpler and more efficient. Attached Figure Description

[0012] Figure 1 This is a three-dimensional view of the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is a top sectional view of the present invention; Figure 4 This is a structural diagram of the outer shell of this utility model.

[0013] The correspondence between the labels and component names in the attached figures is as follows: 1. Housing; 2. Image imaging lens; 3. Illumination linear lens; 4. Circuit board; 5. Linear image sensor; 6. Light-emitting diode; 7. Light-emitting shield. Detailed Implementation

[0014] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0015] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0016] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0017] Reference Figure 1-4 The present invention provides an embodiment of a barcode scanning module, comprising a housing 1, an image imaging lens 2 fixedly connected to one end of the inner wall of the housing 1, an illumination linear lens 3 installed on one side of the outer wall of the image imaging lens 2, an aperture and a light-transmitting rectangular hole being provided at both ends of one side of the outer wall of the housing 1, the image imaging lens 2 being installed inside the aperture, the illumination linear lens 3 being installed inside the light-transmitting rectangular hole, and both the image imaging lens 2 and the illumination linear lens 3 being arranged on the same horizontal plane, and a circuit board 4 being installed at the rear end of the housing 1.

[0018] A linear image sensor 5 is mounted on the front end of the circuit board 4. Microprocessors and communication interfaces are also soldered onto the circuit board. The linear image sensor 5 is located inside the housing 1. A light-emitting diode 6 is mounted directly behind the illumination linear lens 3. A light-emitting shield 7 is fixedly connected to the rear end of the light-emitting diode 6.

[0019] When the LED 6 emits light, it emits a linear light beam through the light-transmitting rectangular aperture and the illumination linear lens 3, illuminating the barcode. The barcode image passes through the aperture, then through the image imaging lens 2, and reaches the linear image sensor 5. The linear image sensor 5 transmits the barcode image data to the microprocessor, which completes the barcode decoding and sends the barcode data to the corresponding device through the interface. This scanning module only requires an integrated housing 1, which makes the emitted illumination light and the received image signal more consistent, the decoding more stable, the assembly structure simpler, and the efficiency higher.

[0020] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A barcode scanning module, comprising a housing (1), characterized in that: An image imaging lens (2) is fixedly connected to one end of the inner wall of the outer shell (1), and an illumination linear lens (3) is installed on one side of the outer wall of the image imaging lens (2). A circuit board (4) is installed at the rear end of the outer shell (1). The image imaging lens (2) and the illumination linear lens (3) are both set on the same horizontal plane.

2. The barcode scanning module according to claim 1, characterized in that: Both ends of the outer wall of the outer shell (1) are provided with aperture holes and light-transmitting rectangular holes. The image imaging lens (2) is installed inside the aperture holes, and the illumination linear lens (3) is installed inside the light-transmitting rectangular holes.

3. The barcode scanning module according to claim 1, characterized in that: A linear image sensor (5) is mounted on the front end of the circuit board (4), and the linear image sensor (5) is located inside the housing (1).

4. A barcode scanning module according to claim 1, characterized in that: A light-emitting diode (6) is installed directly behind the illumination linear lens (3), and a light-emitting shield (7) is fixedly connected to the rear end of the light-emitting diode (6). The light-emitting diode (6) is soldered onto the circuit board (4).

5. A barcode scanning module according to claim 1, characterized in that: The circuit board (4) is also soldered with a microprocessor and a communication interface.

Images