Illumination spectrum calibration device
By designing a movable light source component and instrument stage in the illuminance spectrum calibration equipment, the problems of large equipment size and high cost are solved, enabling efficient calibration under different lighting conditions and improving the accuracy and versatility of calibration.
Patent Information
- Application Number
- CN202423239254.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing illuminance spectral calibration equipment is large, complex in structure, and expensive, making it difficult to perform efficient calibration under different lighting conditions.
A movable light source assembly and instrument stage were designed. The distance and angle between the light source and the instrument can be adjusted through guide rails and driving components to simulate different lighting scenarios and ensure that the standard instrument and the instrument to be calibrated are under the same lighting conditions during the same calibration process.
It improves the comprehensiveness and accuracy of calibration, meets the illuminance measurement requirements in different application scenarios, simplifies the operation process, and reduces equipment costs.
Smart Images
Figure CN223678634U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of spectral instruments, in particular to an illuminance spectrum calibration device. BACKGROUND
[0002] The illuminance spectrum calibration device is a professional instrument for measuring and calibrating the spectral distribution and illuminance of a light source. By comparing the to-be-calibrated instrument with a standard instrument, the accuracy of the readings of the to-be-calibrated instrument can be determined and adjusted.
[0003] The existing illuminance spectrum calibration device is large in size, and its structure is relatively complex and high in cost. CONTENT OF THE INVENTION
[0004] The present application provides an illuminance spectrum calibration device, which comprises:
[0005] A shell, which is internally provided with a receiving cavity;
[0006] A light source assembly, which comprises at least one light source; the light source assembly is located in the receiving cavity, is mounted to the top wall of the shell, and is movable along a first direction;
[0007] An instrument carrier, which is located in the receiving cavity and is mounted to the bottom wall of the shell; the instrument carrier comprises a bearing surface, which is provided with a first mounting position and a second mounting position; the first mounting position is used for mounting a standard instrument; the second mounting position is used for mounting a to-be-calibrated instrument; the normal projection of the first mounting position and the second mounting position on the surface of the bottom wall facing the top wall is distributed on both sides of the normal projection of a straight line in which the first direction is located on the surface.
[0008] In an embodiment, the bottom wall is provided with a first guide rail, which extends along a second direction; a straight line in which the second direction is located is coincident with or parallel to the normal projection of a straight line in which the first direction is located on the surface.
[0009] The instrument carrier is movable along the first guide rail.
[0010] In an embodiment, the bottom wall is provided with a second guide rail, which extends in a direction in which the bottom wall points to the top wall; the instrument carrier is movable along the second guide rail.
[0011] In an embodiment, the bottom wall is provided with a first guide rail, which extends along a second direction; a straight line in which the second direction is located is coincident with or parallel to the normal projection of a straight line in which the first direction is located on the surface.
[0012] The instrument carrier is mounted to the second guide rail, and one end of the second guide rail is connected to the first guide rail.
[0013] In one embodiment, the instrument platform is connected with the second guide rail through a connecting piece; the connecting piece is configured to adjust the included angle between the bearing surface and the second guide rail.
[0014] In one embodiment, the illuminance spectrum calibration device further comprises a first driving member, which is drivingly connected with the instrument platform to drive the instrument platform to move.
[0015] In one embodiment, the top wall is provided with a third guide rail extending along the first direction, and the light source assembly is mounted on the third guide rail.
[0016] In one embodiment, the light source assembly comprises a plurality of the light sources, and the plurality of the light sources are arranged along the first direction.
[0017] In one embodiment, the plurality of the light sources comprise at least two of a light-emitting diode light source, a natural light simulating light source and a fluorescent light source.
[0018] In one embodiment, the outer surface of the shell is provided with at least one switch for turning on or off the light source; and / or, the outer surface of the shell is further provided with at least one adjusting knob for adjusting the brightness and color temperature of the light source; and / or,
[0019] The illuminance spectrum calibration device further comprises a second driving member, which is drivingly connected with the light source assembly to drive the light source assembly to move.
[0020] The light source assembly of the illuminance spectrum calibration device provided by the embodiments can move along the first direction, so that the operator can conveniently and quickly adjust the distance and angle between the light source and the standard instrument and the instrument to be calibrated on the instrument platform, and simulate the light conditions in different actual use scenarios. The orthographic projection of the standard instrument and the instrument to be calibrated on the surface of the bottom wall of the shell towards the top wall is distributed on both sides of the orthographic projection of the straight line where the first direction is located on the surface, so that the light conditions of the standard instrument and the instrument to be calibrated can be kept as consistent as possible in the same calibration process, and the instrument to be calibrated can reach the expected measurement accuracy standard after calibration, thereby meeting the requirements of illuminance measurement in different application scenarios.
[0021] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the application. BRIEF DESCRIPTION OF DRAWINGS
[0022] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.
[0023] Figure 1A three-dimensional structural schematic diagram of an illuminance spectrum calibration device provided in an embodiment of this application;
[0024] Figure 2 This is a schematic diagram of the structure of an illuminance spectrum calibration device provided in an embodiment of this application;
[0025] Figure 3 A top view of the instrument platform of an illuminance spectral calibration device provided in an embodiment of this application;
[0026] Figure 4 A three-dimensional structural schematic diagram of an illuminance spectrum calibration device provided in an embodiment of this application;
[0027] Figure 5 This is a left view of an illuminance spectrum calibration device provided in an embodiment of this application;
[0028] Figure 6 This is a front view of the instrument stage of an illuminance spectral calibration device provided in an embodiment of this application. Detailed Implementation
[0029] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.
[0030] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.
[0031] The illuminance spectrum calibration device according to embodiments of this application will now be described in detail with reference to the accompanying drawings. Unless otherwise specified, the features of the following embodiments and implementations can complement or combine with each other.
[0032] This application provides an illuminance spectrum calibration device, such as... Figure 1 and Figure 2 As shown, the illuminance spectroscopy device includes a housing 10, a light source assembly 20, and an instrument stage 30.
[0033] The shell 10 is internally provided with a receiving cavity 101. A light source assembly 20 is located in the receiving cavity 101, is mounted on the top wall of the shell 10, and is movable along a first direction A. An instrument carrier 30 is located in the receiving cavity 101 and is mounted on the bottom wall of the shell 10. The instrument carrier 30 includes a bearing surface 31, as shown in Figure 3 The first mounting position 311 is used for mounting a standard instrument, and the second mounting position 312 is used for mounting a to-be-calibrated instrument. The normal projection of the first mounting position 311 and the normal projection of the second mounting position 312 on the surface of the bottom wall facing the top wall are distributed on two sides of the normal projection of a straight line along the first direction A on the surface.
[0034] Since the light source assembly 20 is movable along the first direction A, an operator can conveniently and quickly adjust the distance and angle between the light source 21 and the standard instrument and the to-be-calibrated instrument on the instrument carrier 30, simulate the light conditions in different actual use scenarios, and thus calibrate the to-be-calibrated instrument under multiple light conditions, which is beneficial to improving the comprehensiveness and accuracy of calibration.
[0035] After the standard instrument and the to-be-calibrated instrument are respectively mounted on the first mounting position 311 and the second mounting position 312, the normal projection of the standard instrument and the normal projection of the to-be-calibrated instrument on the surface of the bottom wall of the shell 10 facing the top wall are distributed on two sides of the normal projection of a straight line along the first direction A on the surface. This can ensure that the light conditions of the standard instrument and the to-be-calibrated instrument are as consistent as possible in the same calibration process, so that the to-be-calibrated instrument can reach the expected measurement accuracy standard after calibration and meet the requirements of illuminance measurement in different application scenarios.
[0036] In the embodiment shown in Figure 3 The areas of the normal projections of the first mounting position 311 and the second mounting position 312 on the surface of the bottom wall facing the top wall can be different. It is only required that the center point of the standard instrument and the center point of the to-be-calibrated instrument are symmetrically distributed on two sides of the normal projection of a straight line along the first direction A on the surface when the standard instrument is mounted on the first mounting position 311 and the to-be-calibrated instrument is mounted on the second mounting position 312.
[0037] In one embodiment, as shown in Figure 1 and Figure 4 One side of the shell 10 is provided with a hatch 11. The hatch 11 can close the receiving cavity 101 when the illuminance spectrum calibration device is working, avoid external light from interfering with the light conditions in the receiving cavity 101, and ensure the accuracy and reliability of calibration. The hatch 11 also provides a convenient operation entrance for an operator to conveniently mount and dismount the instruments.
[0038] In one embodiment, as shown in Figure 4 The cabin door 11 is provided with a door lock 111, which can lock the cabin door 11 to avoid accidental opening of the cabin door 11 and the entry of external light and other interference factors into the accommodation cavity 101 during calibration of the illuminance spectrum calibration device, thereby avoiding calibration deviation. In some embodiments, the door lock 111 is a sunken rotary lock.
[0039] In one embodiment, as shown in Figure 4 and Figure 5 The outer side of the shell 10 is provided with a handle 12. The illuminance spectrum calibration device usually needs to be used in different places, and the handle 12 provides a suitable force point for the operator, making the device more convenient to carry.
[0040] In one embodiment, the inner wall of the shell 10 is provided with light-absorbing material to avoid interference with the light environment during calibration after the inner wall of the shell 10 reflects the light emitted by the light source.
[0041] In one embodiment, as shown in Figure 4 The side wall of the shell 10 is provided with a through hole 13 communicating with the accommodation cavity 101, and the data line of the external computer or data acquisition system can be connected with the standard instrument and the instrument to be calibrated in the accommodation cavity 101 through the through hole 13, ensuring stable and fast data transmission, and facilitating subsequent data recording, analysis and processing.
[0042] In one embodiment, as shown in Figure 5 The side wall of the shell 10 is also provided with a power interface 14, through which the power supply can be conveniently connected to supply power to the illuminance spectrum calibration device.
[0043] In one embodiment, as shown in Figure 1 The bottom of the shell 10 is provided with a lockable roller 15, which can make the illuminance spectrum calibration device have good mobility and improve the flexibility of device use. The roller 15 can be locked during device use, thereby improving the stability and safety of the device.
[0044] In one embodiment, as shown in Figure 2As shown, the bottom wall is provided with a first guide rail 41 extending along a second direction B, a straight line where the second direction B lies is coincident with or parallel to the normal projection of a straight line where the first direction A lies on the surface of the bottom wall facing the top wall, and the instrument carrier 30 is movable along the first guide rail 41. When the first direction A is parallel to the second direction B, the light source 21 can be arranged directly above the first guide rail 41, and the first mounting position 311 and the second mounting position 312 of the instrument carrier 30 can receive the same light conditions. In some cases, it is sometimes difficult to achieve certain specific light scene simulation only by moving the light source 21. By adjusting the position of the instrument carrier 30 on the first guide rail, the operator can adjust the relative position relationship between the standard instrument and the instrument to be calibrated on the instrument carrier 30 and the light source 21, which is beneficial to improve the accuracy and efficiency of calibration.
[0045] In one embodiment, as shown in Figure 2 the bottom wall is provided with a second guide rail 42 extending along a direction of the bottom wall pointing to the top wall, and the instrument carrier 30 is movable along the second guide rail 42. In this way, the operator can accurately control the distance between the instrument carrier 30 and the light source 21, and then control the light intensity received by the standard instrument and the instrument to be calibrated, which facilitates calibration under different light intensity conditions. In some embodiments, the second guide rail 42 extends along a third direction C, which is perpendicular to the bottom wall of the housing 10.
[0046] In one embodiment, as shown in Figure 2 the instrument carrier 30 is mounted on the second guide rail 42, one end of the second guide rail 42 is connected with the first guide rail 41, and the second guide rail 42 can move along the first guide rail 41 and drive the instrument carrier 30 to move along the second direction B, while the instrument carrier 30 can move along the second guide rail 42 in the third direction C, so as to accurately regulate the position of the instrument carrier 30 to be in the required light condition, more comprehensively simulate the light conditions in different actual scenes, and meet diversified calibration requirements.
[0047] In one embodiment, the instrument carrier 30 is connected with the second guide rail 42 through a connecting piece 32, and the connecting piece 32 is configured to adjust the included angle between the bearing surface 31 and the second guide rail 42. During calibration, the instrument to be calibrated may have specific requirements for the angle of light or have different response characteristics at different angles. Through the above setting, the inclination angle of the standard instrument and the instrument to be calibrated on the bearing surface 31 can be flexibly adjusted, so that the standard instrument and the instrument to be calibrated can receive light at different angles, thereby simulating different light conditions, and improving the versatility of the illuminance spectrum calibration equipment for calibrating various instruments.
[0048] In one embodiment, as shown inFigure 2 and Figure 6 As shown, the connector 32 includes a connecting plate 321 and an adjusting screw 322. The connecting plate 321 is connected to the instrument platform 30. After adjusting the tilt angle of the bearing surface 31 of the instrument platform 30, the connecting plate 321 is clamped onto the second guide rail 42 using the adjusting screw 322, thereby fixing the tilt angle of the instrument platform 30. In some embodiments, the connecting plate 321 is provided with a scale groove 3211 with scale markings, and the second guide rail 42 is provided with a fixing protrusion located in the scale groove 3211. When the connecting plate 321 drives the instrument platform 30 to adjust its angle relative to the second guide rail 42, the relative position of the fixing protrusion and the scale groove 3211 changes. According to the scale value indicated by the fixing protrusion, the tilt angle of the bearing surface 31 of the instrument platform 30 can be precisely adjusted.
[0049] In one embodiment, the illuminance spectral calibration device further includes a first driving component, which is driven and connected to the instrument stage 30 to drive the instrument stage 30 to move. The first driving component enables automatic control of the instrument stage 30, which helps improve the accuracy of the instrument stage 30's position adjustment and thus the efficiency of the calibration operation. In some embodiments, the first driving component may include a first motor and a second motor. The first motor is disposed at the end of the second guide rail 42 and is used to drive the second guide rail 42 to move along the first guide rail 41, thereby causing the instrument stage 30 to move along the second direction B. The second motor is used to directly drive the instrument stage 30 to move along the second guide rail 42.
[0050] In one embodiment, such as Figure 2 As shown, the top wall of the housing 10 is provided with a third guide rail 43 extending along the first direction A, and the light source assembly 20 is mounted on the third guide rail 43. The operator can control the light source assembly 20 to move along the third guide rail 43, thereby precisely controlling the position of the light source 21 and realizing fine adjustments to the illumination angle and distance.
[0051] In one embodiment, the illuminance spectrum calibration device further includes a second driving member, which is motive-connected to the light source assembly 20 and drives the light source assembly 20 to move. In some embodiments, the second driving member includes a third motor, which drives the light source assembly 20 to move along a third guide rail 43.
[0052] In one embodiment, such as Figure 2As shown, the light source assembly 20 comprises a plurality of light sources 21 arranged along the first direction A. When the plurality of light sources 21 are arranged along the first direction A, a relatively uniform light distribution can be formed at the first mounting position 311 and the second mounting position 312 of the instrument stage 30, which is beneficial to keeping the light received by the standard instrument and the instrument to be calibrated consistent in uniformity, thereby improving the accuracy of calibration.
[0053] In one embodiment, as shown in Figure 2 The plurality of light sources 21 comprises at least two of a light emitting diode light source 211, a natural light simulating light source 212 and a fluorescent light source 213. Each light source has its own spectral characteristics, and when different light sources are combined for use, a more complex spectrum can be simulated, so that the illuminance spectrum calibration device covers a wider spectrum range, thereby more comprehensively calibrating the response of the instrument under different spectra and improving the calibration accuracy of the instrument to be calibrated. In other embodiments, the light source assembly 20 can also comprise a halogen tungsten lamp light source, a high-pressure mercury lamp light source, etc.
[0054] In one embodiment, as shown in Figure 2 and Figure 4 The outer surface of the housing 10 is provided with at least one switch 16 for turning on or off the light sources 21. In the embodiment shown in the figure, the switch 16 comprises a first sub-switch 161 for turning on or off the light emitting diode light source 211, a second sub-switch 162 for turning on or off the natural light simulating light source 212 and a third sub-switch 163 for turning on or off the fluorescent light source 213.
[0055] In one embodiment, the outer surface of the housing is also provided with at least one adjustment knob 17 for adjusting the brightness and color temperature of the light sources. In the embodiment shown in the figure, the adjustment knob 17 comprises a first sub-adjustment knob 171 for adjusting the natural light simulating light source 212 and a second sub-adjustment knob 172 for adjusting the fluorescent light source 213.
[0056] By adjusting the light sources 21 through the switch 16 or the adjustment knob 17, or by adjusting the light sources 21 through the switch 16 and the adjustment knob 17 together, different light conditions can be modulated to meet the calibration requirements of different instruments.
[0057] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of the present application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.
Claims
1. An illuminance spectrum calibration device, characterized in that, include: The shell has an internal cavity; A light source assembly includes at least one light source; the light source assembly is located within the receiving cavity, mounted on the top wall of the housing, and is movable along a first direction; An instrument stage is located within the receiving cavity and mounted on the bottom wall of the housing; the instrument stage includes a bearing surface, and the bearing surface is provided with a first mounting position and a second mounting position; the first mounting position is used to mount a standard instrument; the second mounting position is used to mount an instrument to be calibrated; the orthographic projections of the first mounting position and the second mounting position on the surface of the bottom wall facing the top wall are distributed on both sides of the orthographic projection of the straight line in the first direction on the surface.
2. The illuminance spectrum calibration device according to claim 1, characterized in that, The bottom wall is provided with a first guide rail, which extends along a second direction; the straight line in the second direction coincides with or is parallel to the orthographic projection of the straight line in the first direction on the surface. The instrument platform can move along the first guide rail.
3. The illuminance spectrum calibration device according to claim 1, characterized in that, The bottom wall is provided with a second guide rail, which extends along the bottom wall in the direction of the top wall; the instrument platform can move along the second guide rail.
4. The illuminance spectrum calibration device according to claim 3, characterized in that, The bottom wall is provided with a first guide rail, which extends along a second direction; the straight line in the second direction coincides with or is parallel to the orthographic projection of the straight line in the first direction on the surface. The instrument platform is mounted on the second guide rail, and one end of the second guide rail is connected to the first guide rail.
5. The illuminance spectrum calibration device according to claim 4, characterized in that, The instrument platform is connected to the second guide rail via a connector; the connector is configured to adjust the angle between the bearing surface and the second guide rail.
6. The illuminance spectrum calibration device according to any one of claims 2 to 5, characterized in that, The illuminance spectral calibration device further includes a first driving component, which is connected to the instrument stage and drives the instrument stage to move.
7. The illuminance spectrum calibration device according to claim 1, characterized in that, The top wall is provided with a third guide rail extending along the first direction, and the light source assembly is mounted on the third guide rail.
8. The illuminance spectrum calibration device according to claim 7, characterized in that, The light source assembly includes a plurality of light sources, which are arranged along the first direction.
9. The illuminance spectrum calibration device according to claim 8, characterized in that, The plurality of light sources include at least two of the following: light-emitting diode light sources, natural light sources, and fluorescent light sources.
10. The illuminance spectrum calibration device according to claim 1, characterized in that, The outer surface of the housing is provided with at least one switch for turning the light source on or off; and / or, the outer surface of the housing is also provided with at least one adjustment knob for adjusting the brightness and color temperature of the light source; and / or, The illuminance spectral calibration device further includes a second driving component, which is connected to the light source assembly and drives the light source assembly to move.