Regular tetrahedron panoramic illumination measurement device

Abstract

The utility model discloses a regular tetrahedron panoramic illumination measuring device, which comprises a regular tetrahedron main body (1), four surfaces of the regular tetrahedron main body (1) are respectively provided with a groove, and an illuminance measurement assembly (2) for measuring illuminance is installed in the groove; and a connecting part (31) detachably connected with the fixing device is arranged at the bottom of the regular tetrahedron main body (1). The device is simple in structure and convenient to operate, can accurately reflect the comprehensive illumination intensity of a certain point in the environment, is particularly suitable for the fields of indoor and outdoor illumination evaluation, building light environment measurement, visual quality detection and the like, and has popularization value.

Description

Technical Field

[0001] This utility model relates to an illuminance measuring device, and more particularly to a tetrahedral panoramic illuminance measuring device. Background Technology

[0002] This section provides only background information relevant to this disclosure and is not necessarily prior art.

[0003] With the continuous expansion of lighting applications, people's needs for illuminance measurement are becoming increasingly diversified. Illuminance refers to the luminous flux received per unit area, and it is of great significance for assessing ambient lighting conditions, studying visual quality, and conducting lighting design. Traditional illuminance meters can usually only measure the luminous flux intensity in a single direction. To comprehensively evaluate the lighting conditions at a point in space within a 360° range, it is necessary to repeatedly change the orientation of the illuminance meter and record data multiple times. This process is not only cumbersome but also easily affected by environmental factors, operational procedures, and other factors, leading to discrepancies in the measurement data.

[0004] Against this backdrop, the measurement of panoramic illuminance becomes even more practically significant. Panoramic illuminance refers to the average value of the illuminance at a point within a 360° radius of a sphere, and is an important indicator for evaluating the overall light intensity received at that point. If a conventional single-direction illuminance meter is still used to measure panoramic illuminance, it is not only time-consuming, but also requires ensuring that the measurement point is aligned with the same location in all directions; otherwise, cumulative errors are likely to occur.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0006] Purpose of the invention: The technical problem to be solved by this utility model is to provide a tetrahedral panoramic illumination measurement device to address the shortcomings of the existing technology.

[0007] To solve the above-mentioned technical problems, this utility model discloses a tetrahedral panoramic illuminance measurement device, comprising:

[0008] The main body of a regular tetrahedron;

[0009] The four faces of the tetrahedron body are respectively provided with grooves, and illuminance measuring components for measuring illuminance are installed in the grooves.

[0010] The bottom of the tetrahedral body is provided with a connecting component that can be detachably connected to the fixing device.

[0011] Furthermore, the illuminance measurement component includes:

[0012] An illuminance meter probe and a probe connecting wire electrically connected to it, the probe connecting wire converging at the bottom of the tetrahedral body through the groove and electrically connected to an external device.

[0013] Furthermore, the grooves provided on the four faces of the tetrahedral body are probe grooves and wire grooves, which are used to install the illuminance meter probe and the probe connecting wire, respectively.

[0014] Furthermore, the illuminance meter probe is installed in the probe groove, and the surface of the illuminance meter probe is not lower than the surface of the tetrahedral body.

[0015] Furthermore, the probe connecting wire is installed in the wire groove, and the surface of the probe connecting wire is not higher than the surface of the tetrahedral body.

[0016] Furthermore, the outer surface of the tetrahedral body is provided with an anti-reflective surface material.

[0017] Furthermore, the surface material is black velvet paper or light-absorbing fabric.

[0018] Furthermore, a nut is provided at the bottom of the tetrahedral body, which is threadedly connected to the connecting component.

[0019] Furthermore, the connecting component is a tripod quick-release plate.

[0020] Furthermore, the main body of the tetrahedron is a standard regular tetrahedron, with four faces being equilateral triangles.

[0021] Beneficial effects:

[0022] 1. This utility model relates to a tetrahedral panoramic illuminance measurement device. The device mainly consists of a tetrahedral body with a standard geometric structure and four illuminance meter probes. It features a compact design and moderate manufacturing cost. By simultaneously installing illuminance meter probes on all four faces, it achieves synchronous measurement of illuminance values ​​in multiple directions, significantly improving operational efficiency and data consistency.

[0023] 2. This utility model's tetrahedral panoramic illuminance measuring device uses a method of directly pre-embedded nuts at the bottom for connection with a tripod. The structure is simple and stable, with accurate positioning, ensuring overall stability and consistent geometric positions of all measuring surfaces during measurement. By simultaneously acquiring illuminance values ​​in symmetrical directions on the four faces of the tetrahedron and averaging them, it effectively reflects the average illuminance level of the measurement point in a 360° spatial direction.

[0024] 3. This utility model's tetrahedral panoramic illuminance measuring device features a tetrahedral main body whose entire surface is covered with black felt or light-absorbing material. This effectively absorbs ambient scattered light, preventing reflection interference from affecting the illuminance meter reading and enhancing the optical purity of the measurement system. Furthermore, experimental verification shows that this device can stably output panoramic illuminance close to the true value under various natural or artificial lighting environments, demonstrating good light adaptability and measurement robustness. Attached Figure Description

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, and the advantages of the present invention in the above and / or other aspects will become clearer.

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0027] Figure 2 This is a side view of the present invention.

[0028] Figure 3 This is a top view of the present invention.

[0029] In the picture:

[0030] 1 is the main body of the regular tetrahedron; 11 is the probe groove; 12 is the wire groove; 13 is the surface material; 14 is the nut;

[0031] 2 is the illuminance measurement component; 21 is the illuminance meter probe; 22 is the probe connecting wire;

[0032] 3 is the tripod; 31 is the connecting part. Detailed Implementation

[0033] The overall concept of this invention is as follows: Building a panoramic illuminance meter based on a regular tetrahedral geometric model using existing illuminance meter equipment can effectively balance measurement accuracy and implementation cost, and has advantages such as strong operability, simple construction, and wide applicability. However, there is an urgent need for a panoramic illuminance meter device based on a regular tetrahedral structure that provides stable support and employs a multi-probe simultaneous measurement method to effectively improve measurement efficiency and the accuracy of measurement data, addressing the challenges of stably constructing and placing the regular tetrahedron and simultaneously measuring illuminance on all four faces.

[0034] The technical solution of this utility model is as follows: A tetrahedral panoramic illuminance measuring device is provided. This device features a compact structure, stable fixation, synchronous measurement, and high accuracy, enabling convenient measurement of 360° omnidirectional illuminance in space. Figure 1 As shown:

[0035] A tetrahedral panoramic illuminance measurement device includes a tetrahedral body 1 and an illuminance measurement component 2. The tetrahedral body 1 has circular probe grooves 11 and wire grooves 12 on its four faces, and each face is covered with a surface material 13 for light absorption, typically a black velvet material. The illuminance measurement component 2 includes four illuminance meter probes 21, which are fixedly installed in the probe grooves 11 on the four faces of the tetrahedral body 1. Nuts 14 are pre-embedded in the bottom of the tetrahedral body 1; for compatibility, 1 / 4-inch nuts are typically used, and the nut material can be copper or stainless steel, etc., which can be connected and fixed to the tripod connecting component 31 on the tripod 3, thus allowing for quick installation on the tripod 3.

[0036] Example 1:

[0037] In one specific implementation scheme, the tetrahedral body 1 can be 3D modeled and printed using PLA or ABS material. Its structure is a standard tetrahedron, with all four faces being equilateral triangles, possessing geometric symmetry and facilitating omnidirectional angle measurement. Circular probe grooves 11 are designed on each of the four faces, their depth matching the thickness of the illuminance meter probe 21, ensuring the probe 21 surface is slightly higher than the tetrahedron 1 surface, thus preventing external light from interfering with the measurement results. A wire groove 12 extends from the probe grooves 11 into the interior of the tetrahedron 1 to guide the connection lines of the illuminance meter probe 21. To avoid reflection interference from external light sources on the device surface, the entire exterior of the tetrahedron 1 is covered with black felt or ultra-fine light-absorbing fabric, which can be achieved through adhesive application or fabric stretching.

[0038] The illuminance measurement assembly consists of four identical illuminance meter probes 21. Each probe 21 is circular, with its dimensions precisely matching the circular grooves 11 on the face of a regular tetrahedron. Each probe 21 has a built-in photosensitive element, enabling accurate measurement of the illuminance value in its oriented direction. All probes are connected to a handheld illuminance meter via wires 22, allowing simultaneous acquisition of illuminance data from all four faces, thus achieving real-time monitoring of the panoramic illuminance at the measurement point.

[0039] The bottom of the tetrahedron body 1 has a standard 1 / 4 inch copper nut 14 pre-embedded, which can be directly connected to a conventional tripod 3 to ensure that the device remains stable during measurement. The precise design of the position and angle of the nut 14 ensures that the tetrahedron 1 maintains an ideal spatial posture after being connected to the tripod 3, facilitating accurate illuminance measurement.

[0040] In use, the device is connected to the tripod quick-release plate 31 via the bottom nut 14 and quickly mounted on the tripod. It is then placed at the point to be measured, and the height of the tripod 3 is adjusted so that the geometric center of the regular tetrahedron 1 coincides with the point. After power is turned on, the four illuminance meter probes 21 operate simultaneously, measuring illuminance values ​​in four different spatial directions. By averaging the illuminance in these four directions, the panoramic illuminance value at that point can be obtained. Compared with traditional methods, this device can achieve simultaneous measurement in four directions, avoiding errors that may be caused by manual movement of the illuminance meters during measurement, thus improving measurement efficiency and data accuracy.

[0041] Example 2:

[0042] like Figure 1 As shown, in another embodiment of this utility model, the tetrahedral panoramic illuminance measuring device mainly consists of a tetrahedral body 1, an illuminance meter assembly 2, and a tripod 3. By fixing the illuminance meter probe 21 to the four faces of the tetrahedron and connecting it to the tripod 3 using the pre-embedded nuts 14 at the bottom, a complete panoramic illuminance measuring system is formed.

[0043] The tetrahedral body 1 adopts a standard tetrahedral geometric structure design. In actual implementation, it can be made of high-strength, lightweight engineering plastic materials such as nylon PA66, ABS, or PC. Precise modeling is performed using 3D modeling software (such as SolidWorks, AutoCAD, etc.), followed by 3D printing or injection molding. In this embodiment, the side length of the tetrahedral body is 100mm to ensure sufficient stability and internal space. All four faces are equilateral triangles, ensuring that the measurement directions of the four illuminance meter probes 21 are strictly symmetrically distributed in space. Each of the four faces of the tetrahedral 1 is designed with a circular probe groove 11, with a diameter of 16mm ± 0.2mm and a depth of 9mm ± 0.1mm. These precise dimensions ensure that the illuminance meter probes 21 can be accurately embedded, and that the surface of the probes 21 is flush with the surface of the tetrahedral 1, avoiding shadows or reflection interference caused by the protrusion of the probes 21.

[0044] The probe can be a Minolta T-10A probe.

[0045] like Figure 3As shown, a wire groove 12, 3mm wide and 2mm deep, is designed on the surface of the tetrahedron for arranging the connection lines 22 of the illuminance meter probe 21. The wire groove 12 is designed as a straight line extending along the surface of the tetrahedron 1, ensuring that the wires can be arranged neatly and orderly along the surface, avoiding exposed or loose wires. The four wires 22 connecting the illuminance meter 21 and the probe are fastened to the tripod 3 below the tetrahedron illuminance meter assembly 2 using Velcro. All outer surfaces of the tetrahedron body 1, including the area around the probe recess, are covered with black felt or felt material, which is fixed by special spray adhesive or double-sided tape to ensure that the surface is free of wrinkles and bubbles, and to avoid reflecting and interfering with ambient light.

[0046] The illuminance meter probe 21 is circular, its dimensions precisely matching the circular groove 11 on the face of the tetrahedral body 1. The probe 31 incorporates a photosensitive element, enabling precise measurement of illuminance values ​​in its orientation direction. The probe utilizes a high-precision silicon photodiode photosensitive element with a measurement range of 0.1–100,000 lux and a measurement accuracy of ±3%, meeting the requirements of the national standard JJG640-2003 for illuminance metrology. The probe features electrostatic protection, with a flame-retardant ABS shell and an anti-glare micro-frosted finish. The photosensitive window uses high-transmittance optical glass with a transmittance greater than 95%, ensuring measurement accuracy. Each probe is independently calibrated, with measurement consistency errors controlled within ±1%, ensuring consistency and comparability of the measurement data across the four probes. All probes are connected to a handheld illuminance meter via wires, allowing simultaneous acquisition of illuminance data from all four faces.

[0047] like Figure 2 As shown, a 1 / 4 inch copper nut 14 is pre-embedded in the bottom of the tetrahedral body 1. This nut cooperates with the quick-release plate 31 of the standard tripod 3, allowing the device to be stably mounted on the tripod. This connection method not only simplifies the device structure but also improves the overall stability and portability.

[0048] In actual measurement, the device is connected to tripod 3 and placed at the point to be measured. The height of tripod 3 is adjusted so that the geometric center of the regular tetrahedron 1 coincides with the point to be measured. After the power is turned on, the four illuminance probes 21 work simultaneously to measure the illuminance values ​​in four different spatial directions. These data can be collected and processed using a handheld illuminance meter to calculate the panoramic illuminance value of the measurement point, i.e., the average illuminance in the four directions.

[0049] The implementation principle of this utility model of a tetrahedral panoramic illuminance measuring device is as follows: First, the operator connects the device to the tripod and fixes it in the area to be measured. By adjusting the position and height of the tripod, the geometric center of the tetrahedral body is precisely aligned with the point to be measured. Then, the power is turned on, and the four illuminance meter probes work simultaneously to collect illuminance information from four different directions. Subsequently, the system automatically records and averages the illuminance data of each face to obtain the panoramic illuminance of the measurement point. The system then moves to the next detection area and repeats the above steps to achieve continuous measurement of the panoramic illuminance of all detection areas.

[0050] This utility model provides a concept and method for a tetrahedral panoramic illuminance measurement device. Many methods and approaches exist for implementing this technical solution; the above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.

Claims

1. A tetrahedral panoramic illuminance measuring device, characterized in that, include: The main body of the regular tetrahedron (1); The four faces of the tetrahedral body (1) are respectively provided with grooves, and an illuminance measuring component (2) for measuring illuminance is installed in the grooves; The bottom of the tetrahedral body (1) is provided with a connecting component (31) that can be detachably connected to the fixing device.

2. The tetrahedral panoramic illuminance measuring device according to claim 1, characterized in that, The illuminance measurement component (2) includes: The illuminance meter probe (21) and the probe connecting wire (22) electrically connected thereto, the probe connecting wire (22) converges at the bottom of the tetrahedral body (1) through the groove and is electrically connected to the external device.

3. The tetrahedral panoramic illuminance measuring device according to claim 2, characterized in that, The grooves provided on the four faces of the tetrahedral body (1) are probe grooves (11) and wire grooves (12), which are used to install the illuminance meter probe (21) and the probe connecting wire (22), respectively.

4. The tetrahedral panoramic illuminance measuring device according to claim 3, characterized in that, The illuminance probe (21) is installed in the probe groove (11), and the surface of the illuminance probe (21) is not lower than the surface of the tetrahedral body (1).

5. The tetrahedral panoramic illuminance measuring device according to claim 3, characterized in that, The probe connecting wire (22) is installed in the wire groove (12), and the surface of the probe connecting wire (22) is not higher than the surface of the tetrahedral body (1).

6. The tetrahedral panoramic illuminance measuring device according to claim 1, characterized in that, The outer surface of the tetrahedral body (1) is provided with an anti-reflective surface material (13).

7. The tetrahedral panoramic illuminance measuring device according to claim 6, characterized in that, The surface material (13) is black velvet paper or light-absorbing fabric.

8. The tetrahedral panoramic illuminance measuring device according to claim 1, characterized in that, The bottom of the tetrahedral body (1) is provided with a nut (14) which is threadedly connected to the connecting component (31).

9. The tetrahedral panoramic illuminance measuring device according to claim 1, characterized in that, The connecting component (31) is a tripod quick-release plate.

10. The tetrahedral panoramic illuminance measuring device according to claim 1, characterized in that, The main body of the tetrahedron (1) is a standard tetrahedron with four equilateral triangles on its four faces.

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