Jewelry detection device with anti-dazzle and uniform illumination functions

Abstract

The utility model relates to the technical field of jewelry detection, in particular to an anti-dazzle and uniform illumination jewelry detection device which comprises a base, a supporting column, a light source module, a shading plate and a top cover. The height of the light source module is adjusted through the sliding rail, the optical lens optimizes light distribution, the micropore array structure of the shading plate disperses light to avoid glare, and the light reflection coating of the top cover improves the illumination utilization rate. And the base is provided with heat dissipation holes and a circular groove, so that the heat dissipation performance and the sample stability are ensured. According to the invention, uniform illumination can be realized, glare interference is eliminated, and the accuracy and operation convenience of jewelry detection are improved.

Description

Technical Field

[0001] This utility model belongs to the field of optical detection and lighting technology, specifically a jewelry detection device with anti-glare and uniform lighting. Background Technology

[0002] Jewelry testing devices play a crucial role in the identification and evaluation of jewelry, with their core function being to provide illumination to clearly display the external features and internal structure of the jewelry. However, existing jewelry testing devices exhibit some noteworthy technical characteristics in practical applications.

[0003] Traditional jewelry inspection devices typically use a single light source or a simply distributed array of light sources for illumination. This design may not adequately meet the needs of comprehensive jewelry observation under certain conditions, especially in the inspection of highly reflective surfaces or complex cuts, easily leading to areas of excessive brightness or shadows. Furthermore, the fixed angle or limited adjustment range of the light source in some devices can affect the uniformity of the illumination effect to some extent.

[0004] In terms of anti-glare, existing devices mostly rely on external shielding or optical coatings. While these methods can reduce glare interference with detection to some extent, they can still lead to excessive light scattering or reflection when processing high-brightness jewelry, thus affecting the accuracy of the detection results.

[0005] Meanwhile, to achieve more uniform lighting, some devices employ multi-light source combinations or special optical element designs. While this approach can improve light distribution to some extent, it places higher demands on the integration and control precision of the lighting system and may increase the overall complexity of the device.

[0006] In conclusion, how to effectively suppress glare while ensuring uniform illumination remains a technical direction that needs further optimization in the field of jewelry testing devices. Utility Model Content

[0007] The purpose of this invention is to provide a jewelry inspection device with anti-glare and uniform illumination, so as to solve the problems of excessive local brightness, obvious shadow areas and glare interference in the prior art mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a jewelry detection device with anti-glare and uniform illumination, comprising a base, a support column fixedly installed at the top center of the base, and two light source modules symmetrically arranged on the outer wall of the support column, the light source modules being slidably connected to the outer wall of the support column via slide rails. Each light source module contains multiple LED beads, and each LED bead has an optical lens in front of it, the surface of which is coated with an anti-reflective film. A light-shielding plate is fixedly connected to the top of the light source module, and a micropore array structure is arranged on the inner side of the light-shielding plate. The aperture of the micropore array structure is between 0.1 mm and 0.5 mm, and the spacing between the holes is twice the aperture. Multiple suction cups are arranged at the bottom of the base, the suction cups being fixed to the bottom surface of the base by threaded connection, and their suction force can be adjusted by rotation.

[0009] The top edge of the base has multiple ventilation holes arranged in a ring, each 3 mm in diameter and 5 mm apart. The inner walls of the ventilation holes are coated with a thermally conductive coating 0.2 mm thick. A circular groove, 5 mm deep and one-third the diameter of the base, is located at the center of the base and is used to hold the jewelry sample to be tested.

[0010] A hemispherical dome is fixedly connected to the top of the support column. The inner wall of the dome is coated with a reflective layer with a reflectivity of over 95%. The bottom edge of the dome is magnetically connected to the top edge of the base, with the magnetic components embedded in corresponding positions on both the dome and the base. The magnetic force of the magnetic components is 50 Newtons. A 2mm diameter vent is located at the center of the top of the dome to dissipate heat from the device.

[0011] The slide rail of the light source module has graduated markings, with a mark every 1 centimeter, for precise height adjustment. Limit blocks are located at both ends of the slide rail, secured to the rail with bolts tightened to a torque of 1.5 Nm. A power interface is located at the bottom of the light source module, connecting to an external power source via a 1.5-meter-long wire.

[0012] The micro-perforated array structure of the light-shielding plate is manufactured using laser drilling technology, resulting in smooth, burr-free edges for the micro-perforations. The light-shielding plate is 2 mm thick and made of polycarbonate, offering excellent heat resistance and impact resistance. Clips made of elastic material are located on both sides of the light-shielding plate to secure it to the top of the light source module.

[0013] Compared with the prior art, the technical advantages of this utility model are as follows:

[0014] The light source module moves up and down along the support column via a slide rail, adjusting the distance between the light source and the jewelry sample to change the light intensity and distribution. Optical lenses focus and diffuse the light emitted from the LED beads, ensuring more uniform illumination of the jewelry sample surface. The microporous array structure of the light-shielding plate further filters and disperses the light, preventing glare caused by direct strong light. The heat dissipation holes facilitate rapid heat dissipation within the device, preventing overheating from affecting light source performance. The reflective coating on the top cover reflects scattered light back to the detection area, improving light utilization, while the vents in the top cover ensure airflow within the device, maintaining a suitable operating temperature. The circular groove in the base provides a stable placement for the jewelry sample, preventing displacement during detection.

[0015] This invention solves the problems of uneven lighting and glare interference in existing jewelry testing devices through multiple technical means, including sliding adjustment of the light source module, light optimization of the optical lens, micro-pore array design of the light shield, and reflective coating on the top cover. The connection relationships between the various components of the device are clearly defined, and the installation method is specific, facilitating actual operation and maintenance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model, showing the positional relationship of the base, support column, light source module, top cover and heat dissipation holes.

[0017] Figure 2 This is a cross-sectional view of the light source module, which shows in detail the internal structure of the LED beads, optical lenses, light shields, and their micro-pore array structure.

[0018] Figure 3 This is a cross-sectional view of the top cover, showing its hemispherical design, reflective coating on the inner wall, and the location of the top vents.

[0019] Figure 4 This is a top view of the base, showing the distribution of the circular grooves, heat dissipation holes, and suction cups.

[0020] Figure 5 This is a magnified view of a section of the slide rail for the light source module, showing the scale markings, limit blocks, and the connection between the slide rail and the support column.

[0021] Figure 6 The image shows a detailed view of the light-shielding plate, highlighting the microporous array structure and the design of its edge clips.

[0022] The attached figures are labeled as follows:

[0023] 1. Base; 2. Support column; 3. Light source module; 4. LED beads; 5. Optical lens; 6. Light shield; 7. Micro-pore array structure; 8. Suction cup; 9. Heat dissipation holes; 10. Thermal conductive coating; 11. Circular groove; 12. Top cover; 13. Reflective coating; 14. Vent hole; 15. Scale markings; 16. Limiting block; 17. Power interface; 18. Buckle; 19. Magnetic suction component; 20. Slide rail. Detailed Implementation

[0024] This utility model provides a jewelry inspection device with anti-glare and uniform illumination. The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Figure 1 As shown, the device includes a base 1, a support column 2, a light source module 3, a top cover 12, and several auxiliary components. The base 1 is the main structure of the entire device, and the support column 2 is fixedly installed at the center of its top. The support column 2 is firmly fixed to the base 1 by bolts to ensure the stability of the overall structure. Two light source modules 3 are installed on the outer wall of the support column 2. The light source modules 3 are slidably connected to the outer wall of the support column 2 via slide rails 20. The design of the slide rails 20 allows the light source modules 3 to move up and down along the axial direction of the support column 2, thereby adjusting the distance between the light source and the jewelry sample to be tested.

[0025] like Figure 5 As shown, the slide rail 20 is equipped with scale markings 15, with a marking point every 1 centimeter, for precise control of the height adjustment of the light source module 3. Limit blocks 16 are provided at both ends of the slide rail 20, and the limit blocks 16 are fixed to the slide rail 20 with bolts. The tightening torque of the bolts is 1.5 Nm to prevent the light source module 3 from exceeding the predetermined range during sliding. A power interface 17 is provided at the bottom of the light source module 3. The power interface 17 is connected to an external power source via a 1.5-meter-long wire for easy wiring and use in actual operation.

[0026] The internal structure of light source module 3 is as follows Figure 2 As shown, it contains multiple LED beads 4, each with an optical lens 5 in front. The surface of the optical lens 5 is coated with an anti-reflective film to reduce light reflection loss and improve light transmittance. The function of the optical lens 5 is to focus and diffuse the light emitted by the LED beads 4, so that the light shines more evenly onto the surface of the jewelry sample. A light shield 6 is fixedly connected to the top of the light source module 3. A micro-pore array structure 7 is provided on the inner side of the light shield 6, such as... Figure 6As shown, the aperture of the micro-aperture array structure 7 is between 0.1 mm and 0.5 mm, and the spacing between the apertures is twice the aperture diameter. The micro-aperture array structure 7 is manufactured using laser drilling technology, resulting in smooth, burr-free edges to avoid light scattering caused by burrs. The light-shielding plate 6 is 2 mm thick and made of polycarbonate, which has good heat resistance and impact resistance. Clips 18, made of elastic material, are provided on both sides of the light-shielding plate 6 to securely fix the light-shielding plate 6 to the top of the light source module 3.

[0027] like Figure 4 As shown, the base 1 has multiple suction cups 8 at its bottom, which are fixed to the bottom surface of the base 1 by threaded connections. The suction force can be adjusted by rotation to ensure the stability and adaptability of the device in different working environments. Multiple heat dissipation holes 9 are arranged in a ring around the top edge of the base 1. The diameter of each heat dissipation hole 9 is 3 mm, and the spacing between adjacent holes is 5 mm. A thermally conductive coating 10 with a thickness of 0.2 mm is coated on the inner wall of each heat dissipation hole 9 to accelerate heat dissipation and prevent excessive temperature from affecting the light source performance. A circular groove 11 with a depth of 5 mm and a diameter one-third the diameter of the base 1 is located at the center of the base 1. This groove is used to place the jewelry sample to be tested. The design of the circular groove 11 provides a stable placement position for the jewelry sample, preventing displacement during the testing process.

[0028] like Figure 3 As shown, a top cover 12 is fixedly connected to the top of the support column 2. The top cover 12 is hemispherical, and its inner wall is provided with a reflective coating 13. The reflective coating 13 has a reflectivity of over 95% to reflect scattered light back to the detection area, thereby improving the light utilization rate. The bottom edge of the top cover 12 is connected to the top edge of the base 1 by magnetic attraction. The magnetic attraction component 19 is embedded in the corresponding position of the top cover 12 and the base 1. The magnetic force of the magnetic attraction component 19 is 50 Newtons to ensure a tight connection between the top cover 12 and the base 1. A vent 14 with a diameter of 2 mm is provided at the center of the top of the top cover 12 to dissipate heat from the inside of the device while ensuring air circulation inside the device and maintaining a suitable operating temperature.

[0029] In practical use, the jewelry sample to be tested is first placed in the circular groove 11 of the base 1. The suction force is adjusted by rotating the suction cup 8 at the bottom of the base 1 to ensure the stability of the device. Then, according to the testing requirements, the height of the light source module 3 is adjusted by the scale marks 15 on the slide rail 20 to achieve the optimal distance between the light source and the jewelry sample. The light emitted by the LED beads 4 in the light source module 3 is focused and diffused by the optical lens 5 to form a uniform beam that illuminates the surface of the jewelry sample. The microporous array structure 7 of the light shield 6 further filters and disperses the light to avoid glare caused by direct strong light. The reflective coating 13 of the top cover 12 reflects the scattered light back to the detection area, improving the light utilization rate. At the same time, the vent 14 of the top cover 12 ensures air circulation inside the device and maintains a suitable operating temperature. The heat dissipation holes 9 of the base 1 are designed to help dissipate heat quickly inside the device and prevent the light source performance from being affected by excessive temperature.

[0030] Through the above structural design and operation process, this utility model achieves the functions of anti-glare and uniform illumination, solving the problems of uneven lighting and glare interference in existing jewelry testing devices. The connection relationships between the various components of the device are clear, and the installation method is specific, facilitating actual operation and maintenance.

[0031] To enable those skilled in the art to fully understand and implement this utility model, the following supplementary explanation of the specific implementation principle of this utility model is provided in conjunction with a specific application scenario.

[0032] In the actual operation of jewelry testing, the jewelry sample to be tested is first placed in the circular groove 11 in the center of the base 1. For example... Figure 4 As shown, the circular groove 11 is designed with a depth of 5 mm and a diameter one-third of the diameter of the base 1. Its dimensions have been precisely calculated to effectively fix the jewelry sample and prevent displacement due to external vibration or light source irradiation. Subsequently, the suction force is adjusted by rotating the suction cup 8 at the bottom of the base 1. The suction cup 8 is fixed to the bottom surface of the base 1 via a threaded connection, and its suction strength can be adjusted by rotation to adapt to different work surfaces, ensuring the overall stability of the device. The key to this step is that the suction force adjustment range of the suction cup 8 has been experimentally verified, providing sufficient support on both smooth and rough surfaces, thus ensuring that the device does not shake during the testing process.

[0033] Next, based on the size of the jewelry sample and testing requirements, the height of the light source module 3 is adjusted using the scale marks 15 on the slide rail 20. For example... Figure 5As shown, a scale mark 15 is set on the slide rail 20 at 1 cm intervals. Limiting blocks 16 are fixed to both ends of the slide rail 20 by bolts with a tightening torque of 1.5 Nm to prevent the light source module 3 from exceeding the predetermined range. When the light source module 3 slides up and down along the support column 2, the distance between its internal LED beads 4 and the jewelry sample changes accordingly. This design is based on the optical principle that the distance between the light source and the illuminated object directly affects the light intensity and uniformity of distribution. By precisely adjusting the height of the light source module 3, light can be emitted onto the surface of the jewelry sample at the optimal angle and intensity, thus meeting the needs of different testing scenarios.

[0034] Once the position of the light source module 3 is determined, the LED beads 4 are activated, and the light emitted is processed by the optical lens 5 to form a uniform beam. Figure 2 As shown, the surface of optical lens 5 is coated with an anti-reflective film. The selection and thickness of this film material have been optimized to significantly reduce light reflection loss on the lens surface and improve light transmittance. Optical lens 5 focuses and diffuses the light emitted from LED beads 4, ensuring a uniform beam coverage on the jewelry sample surface and avoiding the problems of localized over-brightness or shadow areas common in traditional devices. This effect relies on the curvature design and material selection of optical lens 5; its focusing capability and diffusion angle have been verified through multiple experiments to ensure that the light distribution meets the requirements for jewelry testing.

[0035] Furthermore, the microporous array structure 7 of the light-shielding plate 6 filters and disperses light, preventing glare caused by direct exposure to strong light. For example... Figure 6 As shown, the aperture of the micro-aperture array structure 7 ranges from 0.1 mm to 0.5 mm, and the spacing between the apertures is twice the aperture diameter. This design is based on the theory of light scattering. By controlling the size and spacing of the micro-apertures, light is scattered multiple times as it passes through them, thereby reducing the concentration and intensity of the light. The edges of the micro-apertures are treated with laser drilling to ensure a smooth, burr-free surface, avoiding additional scattering caused by burrs. The light-shielding plate 6 is made of polycarbonate, which has good heat resistance and impact resistance, and can maintain stable performance during long-term use. The light-shielding plate 6 is fixed to the top of the light source module 3 by clips 18. The clips 18 are made of elastic material, making installation and removal convenient, while ensuring that the light-shielding plate 6 will not loosen during use.

[0036] Meanwhile, the reflective coating 13 of the top cover 12 reflects the scattered light back to the detection area, further improving the light utilization rate. For example... Figure 3As shown, the top cover 12 has a hemispherical design, and its inner wall is coated with a reflective coating 13 with a reflectivity of over 95%, effectively capturing scattered light and redirecting it back to the surface of the jewelry sample. This design is based on the principle of light reflection, compensating for the low light utilization rate in traditional devices by increasing the number of times light can be reused. The vent 14 of the top cover 12 has a diameter of 2 mm and is located at the center of the top of the top cover 12. It is used to dissipate heat from inside the device while ensuring air circulation and maintaining a suitable operating temperature. The design position of the vent 14 was based on fluid dynamics simulation, enabling efficient heat dissipation without affecting the light reflection effect.

[0037] Furthermore, the heat dissipation holes 9 on the top edge of the base 1 further enhance the heat dissipation performance of the device. For example... Figure 4 As shown, the diameter of the heat dissipation hole 9 is 3 mm, the spacing between adjacent heat dissipation holes 9 is 5 mm, and the inner wall is coated with a thermally conductive coating 10 with a thickness of 0.2 mm. The thermally conductive coating 10 is made of a high thermal conductivity material, which can quickly conduct the heat generated by the light source module 3 to the external environment, preventing the performance of the LED beads 4 from being affected by excessive temperature. The annular arrangement design of the heat dissipation holes 9 has been optimized to ensure that heat can be dissipated evenly and avoid local overheating.

[0038] By combining the above steps and principles, this device achieves both anti-glare and uniform illumination. Throughout the detection process, the height adjustment of the light source module 3, the light optimization of the optical lens 5, the micro-pore array design of the light shield 6, and the reflective coating of the top cover 12 work together to solve the problems of uneven illumination and glare interference in existing technologies. The connections between the various components of the device are clear, and the installation method is specific, facilitating actual operation and maintenance. For example, the magnetic component 19 is embedded in the corresponding positions of the top cover 12 and the base 1, with a magnetic strength of 50 Newtons, ensuring a tight connection between the top cover 12 and the base 1, while also allowing for easy disassembly, facilitating user cleaning and replacement of components.

[0039] In summary, this utility model, through the synergistic effect of multiple technical means, not only improves the illumination uniformity and anti-glare performance of the jewelry testing device, but also takes into account the stability and heat dissipation efficiency of the device, providing reliable technical support for jewelry identification and evaluation.

Claims

1. A jewelry inspection device with anti-glare and uniform illumination, comprising a base (1), characterized in that: A support column (2) is fixedly installed at the top center of the base (1). Two light source modules (3) are symmetrically arranged on the outer wall of the support column (2). The two light source modules (3) are slidably connected to the outer wall of the support column (2) through a slide rail (20). Multiple LED beads (4) are arranged inside the light source module (3). An optical lens (5) is arranged in front of each LED bead (4). A light shield (6) is fixedly connected to the top of the light source module (3). A micro-hole array structure (7) is arranged on the inner side of the light shield (6). Multiple suction cups (8) are arranged at the bottom of the base (1).

2. The jewelry inspection device with anti-glare and uniform illumination according to claim 1, characterized in that: The base (1) has a plurality of heat dissipation holes (9) arranged in a ring at the top edge. The diameter of the heat dissipation holes (9) is 3 mm and the spacing between adjacent heat dissipation holes (9) is 5 mm. The inner wall of the heat dissipation holes (9) is coated with a thermally conductive coating (10) with a thickness of 0.2 mm.

3. The jewelry inspection device with anti-glare and uniform illumination according to claim 1, characterized in that: A circular groove (11) is provided at the center of the base (1). The depth of the circular groove (11) is 5 mm and the diameter is one-third of the diameter of the base (1).

4. The jewelry inspection device with anti-glare and uniform illumination according to claim 1, characterized in that: A top cover (12) is fixedly connected to the top of the support column (2). The top cover (12) is hemispherical and has a reflective coating (13) on its inner wall. A vent (14) is provided at the center of the top of the top cover (12). The diameter of the vent (14) is 2 mm.

5. The jewelry inspection device with anti-glare and uniform illumination according to claim 1, characterized in that: The slide rail (20) is provided with scale markings (15), with a marking point every 1 cm. Limiting blocks (16) are provided at both ends of the slide rail (20), and the limiting blocks (16) are fixed to the slide rail (20) by bolts.

6. The jewelry inspection device with anti-glare and uniform illumination according to claim 1, characterized in that: The bottom of the light source module (3) is provided with a power interface (17), which is connected to an external power source through a wire with a length of 1.5 meters.

7. The jewelry inspection device with anti-glare and uniform illumination according to claim 1, characterized in that: The aperture of the micropore array structure (7) of the light-shielding plate (6) is between 0.1 mm and 0.5 mm, the spacing between the pores is twice the aperture, the thickness of the light-shielding plate (6) is 2 mm, and the material is polycarbonate.

8. The jewelry inspection device with anti-glare and uniform illumination according to claim 1, characterized in that: The light-shielding plate (6) has buckles (18) on both sides of its edges. The buckles (18) are made of elastic material and are used to fix the light-shielding plate (6) to the top of the light source module (3).

9. A jewelry inspection device with anti-glare and uniform illumination according to claim 4, characterized in that: The bottom edge of the top cover (12) is connected to the top edge of the base (1) by magnetic attraction, and the magnetic attraction component (19) is embedded in the corresponding position of the top cover (12) and the base (1).

10. A jewelry inspection device with anti-glare and uniform illumination according to claim 1, characterized in that: The suction cup (8) is fixed to the bottom surface of the base (1) by means of a threaded connection.

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