Grating spectrometer

Abstract

The embodiment of the present application discloses a grating spectrometer, comprising: a shell, the shell comprises an incident surface, the incident surface is provided with a mounting cavity and a light ray incidence port, the mounting cavity and the light ray incidence port are communicated; a grating device, the grating device is arranged in the mounting cavity, and the grating device is arranged opposite to the light ray incidence port; a spectral analysis element, the spectral analysis element is arranged in the mounting cavity and opposite to the grating device, and the spectral analysis element is arranged on the side of the grating device away from the light ray incidence port; and a calculation controller, the calculation controller is arranged in the shell, and the calculation controller is electrically connected with the spectral analysis element. The user can know whether the illumination light in the current environment is healthy light in real time and accurately through the judgment result, so as to help the user understand whether the current light environment is healthy, thereby avoiding the user staying in the harmful light environment for a long time, preventing the damage to the vision, and protecting the illumination health of the user.

Description

Grating Spectrometer Technical Field

[0001] This invention relates to the technical field of spectrometers, and more particularly to a grating spectrometer. Background Technology

[0002] With the development of technology, artificial light sources occupy most of our time in work, life and study. Different light sources will form different spectra, and people have gradually realized the impact of different spectra of lighting on people's health.

[0003] However, in actual use, users usually cannot know the parameters of the light source, which makes it impossible for them to know whether the light from the current light source is healthy or harmful. If users are exposed to harmful light environments for a long time, it will cause great damage to their eyesight and affect the health of lighting. Summary of the Invention

[0004] In view of this, the present invention provides a grating spectrometer to solve the problem in the prior art that users are exposed to harmful light environments for a long time, which causes damage to eyesight and affects the health of lighting.

[0005] This invention proposes a grating spectrometer, comprising:

[0006] The housing includes an incident surface, the incident surface having a mounting cavity and a light inlet, the mounting cavity being connected to the light inlet;

[0007] A grating device is disposed within the mounting cavity and is positioned opposite to the light inlet.

[0008] A spectral analysis element, wherein the spectral analysis element is disposed within the mounting cavity and opposite the grating device, and the spectral analysis element is arranged on the side of the grating device away from the light incident port; and

[0009] A computing controller is disposed in the housing and is electrically connected to the spectral analysis element.

[0010] In one embodiment, the grating device is tilted within the mounting cavity.

[0011] In one embodiment, the opposite sidewalls of the mounting cavity are respectively recessed to form a first track groove and a second track groove. The first track groove and the second track groove are both arranged to extend along the depth direction of the mounting cavity. The opposite sidewalls of the grating device are respectively equipped with a first sliding protrusion and a second sliding protrusion. The first sliding protrusion is slidably disposed in the first track groove, and the second sliding protrusion is slidably disposed in the second track groove.

[0012] In one embodiment, the first track groove cavity is fitted with a first metal strip, and the first sliding protrusion is provided with a first magnetic attracting member, which magnetically engages with the first metal strip; the second track groove cavity is fitted with a second metal strip, and the second sliding protrusion is provided with a second magnetic attracting member, which magnetically engages with the second metal strip.

[0013] In one embodiment, the grating spectrometer further includes a display screen disposed on the outer wall of the housing and electrically connected to the computing controller.

[0014] In one embodiment, the grating spectrometer further includes a wireless communication module, and the computing controller is used to communicate with a user's mobile terminal device through the wireless communication module.

[0015] In one embodiment, the grating spectrometer further includes a filter, the light inlet is provided with a stepped groove, and the filter is engaged in the stepped groove.

[0016] In one embodiment, the grating spectrometer further includes at least two light-shielding plates and at least two rotating shafts. The light-shielding plates are connected to the rotating shafts in a one-to-one correspondence, and the light-shielding plates are rotatably disposed on the incident surface via the corresponding rotating shafts. At least two of the light-shielding plates surround the outer periphery of the light incident port. Rotating each of the light-shielding plates can change the blocked area and the blocked region of the light incident port.

[0017] Implementing the embodiments of the present invention will have the following beneficial effects:

[0018] When the grating spectrometer of this solution is used by the user, the ambient light from the surrounding environment enters the mounting cavity through the light inlet formed on the incident surface of the housing. The light shines on the grating device and is refracted by the grating, thus decomposing the light into different spectral bands. These decomposed spectral bands are refracted onto the spectral analysis element, which analyzes the intensity of each spectral band to form the spectrum of the current lighting light. The spectral analysis element then inputs the spectral data to the computing controller. Based on the intensity of each spectral band and relevant standards, the computing controller can analyze and obtain the color temperature, color coordinates, color rendering index, TM30 index, EML index, and other index information corresponding to each spectral band. It also determines whether these indexes comply with relevant domestic or international standards. Users can obtain real-time and accurate information about whether the lighting in their environment is healthy, helping them understand the health of their current light environment and avoiding prolonged exposure to harmful light, thus preventing eye damage and protecting their lighting health. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] in:

[0021] Figure 1 is a schematic diagram of the structure of a grating spectrometer according to one embodiment.

[0022] Explanation of reference numerals in the attached figures:

[0023] 100. Grating spectrometer; 10. Housing; 11. Incident surface; 111. Light entrance port; 12. First track groove; 13. Second track groove; 20. Grating device; 30. Spectral analysis element; 40. Calculation controller; 50. Filter; 60. Light shield; 70. Rotating shaft. Detailed Implementation

[0024] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0027] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] As shown in Figure 1, a grating spectrometer 100 according to one embodiment includes: a housing 10, the housing 10 including an incident surface 11, the incident surface 11 having a mounting cavity and a light inlet 111, the mounting cavity and the light inlet 111 being connected; a grating device 20, the grating device 20 being disposed in the mounting cavity and being disposed opposite to the light inlet 111; a spectral analysis element 30, the spectral analysis element 30 being disposed in the mounting cavity and being opposite to the grating device 20, and the spectral analysis element 30 being arranged on the side of the grating device 20 away from the light inlet 111; and a calculation controller 40, the calculation controller 40 being disposed in the housing 10 and being electrically connected to the spectral analysis element 30.

[0029] For example, in this application, the housing 10 is rectangular. Except for the light inlet 111 formed on the incident surface 11 at the top of the housing 10, the housing 10 is basically a closed structure to avoid light leakage and affect the accuracy of the detection results.

[0030] The housing 10 is formed by bending and welding a single piece of sheet metal (such as a metal plate).

[0031] Implementing this embodiment of the invention will have the following beneficial effects: When the grating spectrometer 100 of this solution is used by the user, the illumination light in the environment can enter the mounting cavity through the light inlet 111 formed on the incident surface 11 of the housing 10. The illumination light shines on the grating device 20 and can be refracted by the grating, thereby decomposing the illumination light into light of different spectral bands. The light of different spectral bands formed by the decomposition is refracted onto the spectral analysis element 30. The spectral analysis element 30 can analyze the intensity of each spectral band to form the spectrum of the current illumination light. Then, the spectral analysis element 30 inputs the spectral data. By analyzing the intensity of each spectral band and combining it with relevant standards, the computing controller 40 can obtain information such as color temperature, color coordinates, color rendering index, TM30 index, and EML index corresponding to the light in each spectral band. It can also determine whether these indexes meet relevant domestic or international standards. Users can obtain real-time and accurate information about whether the lighting in their current environment is healthy, thus helping them understand whether their current light environment is healthy and avoiding prolonged exposure to harmful light environments, preventing damage to eyesight, and protecting their lighting health.

[0032] In one embodiment, the grating device 20 is tilted within the mounting cavity. Since the illumination light contains multiple light rays with different spectral bands, and the wavelengths of light rays with different spectral bands are different (generally in the range of 230nm to 780nm), the time it takes for light rays of each spectral band to pass through the light inlet 111 and reach the grating device 20 is also different. This will affect the refraction efficiency of the grating device 20 for light rays of each spectral band, and thus affect the detection time and accuracy of the spectral analysis element 30.

[0033] To address the above, the grating device 20 is installed at a suitable angle, so that the distance between each part of the grating device 20 and the light inlet 111 is different. This ensures that light from different spectral bands can reach the grating device 20 at approximately the same time, allowing the grating device 20 to refract light from each spectral band simultaneously. This ensures that light from all spectral bands can be refracted parallel or approximately parallel to each other and reach the spectral analysis element 30, thereby solving the aforementioned problem.

[0034] Referring to Figure 1, further, the opposite sidewalls of the mounting cavity are respectively recessed to form a first track groove 12 and a second track groove 13. Both the first track groove 12 and the second track groove 13 extend along the depth direction of the mounting cavity. The opposite sidewalls of the grating device 20 are respectively equipped with a first sliding protrusion and a second sliding protrusion. The first sliding protrusion is slidably disposed in the first track groove 12, and the second sliding protrusion is slidably disposed in the second track groove 13. This arrangement allows the grating device 20 to be installed and positioned within the mounting cavity by means of the first sliding protrusion adapting to the first track groove 12 and the second sliding protrusion adapting to the second track groove 13. Furthermore, the first sliding protrusion and the first track groove 12 and the second sliding protrusion and the second track groove 13 have relative sliding freedom, thus allowing for flexible adjustment of the installation position of the grating device 20 along the depth direction of the mounting cavity to accommodate the installation needs of grating devices 20 with different sizes. Moreover, this sliding installation method also facilitates the removal of the grating device 20 from the mounting cavity, improving the convenience of installation and disassembly operations.

[0035] Furthermore, the first track groove 12 has a first metal strip embedded in its cavity, and a first magnetic attractor is provided on the first sliding protrusion, with the first magnetic attractor magnetically engaging with the first metal strip; the second track groove 13 has a second metal strip embedded in its cavity, and a second magnetic attractor is provided on the second sliding protrusion, with the second magnetic attractor magnetically engaging with the second metal strip. A continuous magnetic attraction is maintained between the first magnetic attractor and the first metal strip, and between the second magnetic attractor and the second metal strip, ensuring that when the grating device 20 is slidably installed to different depths, the magnetic attraction at both ends can reliably position the grating device 20, improving the installation firmness and positional accuracy of the grating device 20.

[0036] In yet another embodiment, the grating spectrometer 100 further includes a display screen disposed on the outer wall of the housing 10 and electrically connected to the computing controller 40.

[0037] Alternatively, as an alternative to the above embodiments, the grating spectrometer 100 may further include a wireless communication module, and the computing controller 40 may communicate with the user's mobile terminal device via the wireless communication module.

[0038] Therefore, whether the display screen is installed directly on the outside of the housing 10 or connected to the user's mobile terminal device through a wireless communication module, the index information obtained from the analysis and calculation, as well as relevant information such as whether the lighting in the current environment is healthy, can be presented to the user intuitively. This helps the user to adjust the lighting environment that is not good for the body in a timely manner, avoid damage to eyesight, and protect eye health.

[0039] Referring to Figure 1, in another embodiment, the grating spectrometer 100 further includes a filter 50. The light inlet 111 has a stepped groove, and the filter 50 is engaged in the stepped groove. The filter 50 is used to filter out stray light from the illumination light entering through the light inlet 111, thereby preventing stray light from interfering with the detection and analysis results and affecting the accuracy of the grating spectrometer 100 in determining whether the current ambient light is healthy illumination.

[0040] In another embodiment, the grating spectrometer 100 further includes at least two light-shielding plates 60 and at least two rotating shafts 70. The light-shielding plates 60 and the rotating shafts 70 are connected in a one-to-one correspondence, and the light-shielding plates 60 are rotatably disposed on the incident surface 11 via the corresponding rotating shafts 70. At least two light-shielding plates 60 are arranged around the outer periphery of the light incident port 111. Rotating each light-shielding plate 60 can change the blocked area and the blocked region of the light incident port 111.

[0041] For example, when there are interfering light sources in the environment besides illumination, such as light from television playback or computer screens, the interfering light can be blocked by rotating the appropriately positioned light-shielding plate 60, thus preventing it from entering through the light inlet 111. Alternatively, the area of ​​the blocked portion of the light inlet 111 can be reduced by rotating the light-shielding plate 60, thereby allowing more light to enter the grating spectrometer 100 per unit time, which helps improve the accuracy of the detection results.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A grating spectrometer, characterized in that, include: The housing includes an incident surface and a mounting cavity. The incident surface has a light inlet, and the mounting cavity is connected to the light inlet. A grating device is disposed within the mounting cavity and is positioned opposite the light inlet. A spectral analysis element is disposed within the mounting cavity and is opposite the grating device, with the spectral analysis element located on the side of the grating device away from the light inlet. The system includes a computing controller disposed outside the housing and electrically connected to the spectral analysis element; a first track groove and a second track groove are respectively recessed on opposite side walls of the mounting cavity, both extending along the depth direction of the mounting cavity; a first sliding protrusion and a second sliding protrusion are respectively mounted on opposite side walls of the grating device, the first sliding protrusion being slidably disposed in the first track groove and the second sliding protrusion being slidably disposed in the second track groove; the grating device is inclinedly disposed within the mounting cavity; a first metal strip is embedded in the cavity of the first track groove, and a first magnetic attracting element is provided on the first sliding protrusion, the first magnetic attracting element magnetically engaging with the first metal strip; a second metal strip is embedded in the cavity of the second track groove, and a second magnetic attracting element is provided on the second sliding protrusion, the second magnetic attracting element magnetically engaging with the second metal strip.

2. The grating spectrometer as described in claim 1, characterized in that, The grating spectrometer also includes a display screen, which is disposed on the outer wall of the housing and electrically connected to the computing controller.

3. The grating spectrometer as described in claim 1, characterized in that, The grating spectrometer also includes a wireless communication module, and the computing controller is used to communicate with the user's mobile terminal device through the wireless communication module.

4. The grating spectrometer as described in claim 1, characterized in that, The grating spectrometer also includes a filter, and the light inlet is provided with a stepped groove, with the filter being engaged in the stepped groove.

5. The grating spectrometer as described in claim 1, characterized in that, The grating spectrometer further includes at least two light-shielding plates and at least two rotating shafts. The light-shielding plates are connected to the rotating shafts in a one-to-one correspondence, and the light-shielding plates are rotatably disposed on the incident surface through the corresponding rotating shafts. At least two of the light-shielding plates surround the outer periphery of the light incident port. Rotating each of the light-shielding plates can change the blocked area and the blocked region of the light incident port.

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