Grating spectrometer

Abstract

The embodiment of the invention discloses a grating spectrometer, which comprises a shell, the shell comprises an incident plane, the incident plane is provided with a mounting cavity and a light incident port, and the mounting cavity is communicated with the light incident port; the grating device is arranged in the mounting cavity, and the grating device is arranged opposite to the light incident port; the spectral analysis element is arranged in the mounting cavity and is opposite to the grating device, and the spectral analysis element is arranged on the side, away from the light incident port, of the grating device; and the calculation controller is arranged in the shell, and the calculation controller is electrically connected with the spectral analysis element. Therefore, the user can accurately know whether the illumination light in the current environment is healthy or not in real time according to the judgment result, so that the user is helped to understand whether the current light environment is healthy or not, the user is prevented from staying in a harmful light environment for a long time, damage to eyesight is prevented, and the illumination health of the user is protected.

Description

Technical Field

[0001] The invention relates to the technical field of spectrometers, and in particular to a grating spectrometer. Background Art

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

[0003] However, during actual use, users usually cannot know the parameters of the light source, which results in the user being unable to know whether the light from the current light source is healthy or harmful. If users are in a harmful light environment for a long time, it will cause great damage to their eyesight and affect lighting health. Summary of the invention

[0004] In view of this, the present invention provides a grating spectrometer for solving the problem in the prior art that users are in a harmful light environment for a long time, causing damage to their eyesight and affecting their lighting health.

[0005] The present invention provides a grating spectrometer, which comprises:

[0006] A housing, the housing comprising an incident surface, the incident surface being provided with a mounting cavity and a light incident port, the mounting cavity being in communication with the light incident port;

[0007] A grating device, wherein the grating device is arranged in the mounting cavity, and the grating device is arranged opposite to the light incident port;

[0008] a spectrum analysis element, wherein the spectrum analysis element is disposed in the mounting cavity and opposite to the grating device, and the spectrum analysis element is arranged on a 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 of the embodiments, the grating device is arranged tilted in the mounting cavity.

[0011] In one of the embodiments, the side walls on opposite sides of the installation cavity are respectively recessed with a first rail groove and a second rail groove, and the first rail groove and the second rail groove are both extended along the depth direction of the installation cavity. The side walls on opposite sides of the grating device are respectively provided with a first sliding protrusion and a second sliding protrusion, and the first sliding protrusion can be slidably disposed in the first rail groove, and the second sliding protrusion can be slidably disposed in the second rail groove.

[0012] In one embodiment, a first metal strip is embedded in the groove cavity of the first rail groove, a first magnetic attraction component is provided on the first sliding protrusion, and the first magnetic attraction component is magnetically matched with the first metal strip; a second metal strip is embedded in the groove cavity of the second rail groove, a second magnetic attraction component is provided on the second sliding protrusion, and the second magnetic attraction component is magnetically matched with the second metal strip.

[0013] In one embodiment, the grating spectrometer further includes a display screen, which is disposed on an outer wall of the housing and is 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 mobile terminal device of a user through the wireless communication module.

[0015] In one of the embodiments, the grating spectrometer further includes a filter, the light incident port is provided with a step groove, and the filter is clamped in the step groove.

[0016] In one embodiment, the grating spectrometer also includes at least two shading plates and at least two rotating shafts, wherein the shading plates are connected to the rotating shafts one by one, and the shading plates are rotatably arranged on the incident surface through the corresponding rotating shafts, and at least two of the shading plates are arranged around the periphery of the light incident port, and rotating each of the shading plates can change the blocked area and 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 the present scheme is used by the user, the illumination light in the environment can be incident on the installation cavity from the light incident port formed on the incident surface of the shell. The illumination light is irradiated on the grating device and can be refracted by the grating, thereby decomposing the illumination light into light of different spectral bands. The decomposed light of different spectral bands is refracted onto the spectral analysis element. The spectral analysis element can analyze the intensity of each spectral band to form the spectrum of the current illumination light. After that, the spectral analysis element inputs the spectral data into the calculation controller. Through the intensity of each spectral band and in combination with relevant standards, the calculation controller can analyze the color temperature, color coordinates, color rendering index, TM30 index, EML index and other index information corresponding to the light of each spectral band, and judge whether these index information conforms to relevant domestic or international standards. 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 from being in a harmful light environment for a long time, preventing damage to eyesight, and protecting the user's lighting health. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] in:

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

[0022] Description of reference numerals:

[0023] 100, grating spectrometer; 10, housing; 11, incident surface; 111, light incident port; 12, first track groove; 13, second track groove; 20, grating device; 30, spectrum analysis element; 40, calculation controller; 50, filter; 60, shading plate; 70, rotating shaft. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

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

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figure 1 As shown, a grating spectrometer 100 described in an embodiment includes: a shell 10, the shell 10 includes an incident surface 11, the incident surface 11 is provided with a mounting cavity and a light incident port 111, and the mounting cavity is communicated with the light incident port 111; a grating device 20, the grating device 20 is arranged in the mounting cavity, and the grating device 20 is arranged opposite to the light incident port 111; a spectral analysis element 30, the spectral analysis element 30 is arranged in the mounting cavity and opposite to the grating device 20, and the spectral analysis element 30 is arranged on a side of the grating device 20 away from the light incident port 111; and a computing controller 40, the computing controller 40 is arranged in the shell 10, and the computing controller 40 is electrically connected to the spectral analysis element 30.

[0029] For example, in the present application, the shell 10 is rectangular, and except for the incident surface 11 at the top of the shell 10 which forms a light incident port 111, the shell 10 is basically a closed structure to avoid light leakage and affect the accuracy of the detection result.

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

[0031] The implementation of the embodiment of the present invention will have the following beneficial effects: when the grating spectrometer 100 of the present solution is used by a user, the illumination light in the environment can be incident into the installation cavity from the light incident port 111 formed on the incident surface 11 of the housing 10, and the illumination light is irradiated onto the grating device 20, and can be refracted by the grating, thereby decomposing the illumination light into light of different spectral bands, and the decomposed light of different spectral bands is refracted onto the spectral analysis element 30, and the spectral analysis element 30 can analyze the intensity of each spectral band to form the spectrum of the current illumination light, and then the spectral analysis element 30 inputs the spectral data into To the calculation controller 40, through the intensity of each spectral band and combined with relevant standards, the calculation controller 40 can analyze and obtain the color temperature, color coordinates, color rendering index, TM30 index, EML index and other index information corresponding to the light of each spectral band, and judge whether these index information conforms to relevant domestic or international standards. The user can know in real time and accurately whether the lighting light in the current environment is healthy light through the judgment result, so as to help the user understand whether the current light environment is healthy, thereby avoiding the user from being in a harmful light environment for a long time, preventing damage to eyesight, and protecting the user's lighting health.

[0032] In one embodiment, the grating device 20 is tilted in the mounting cavity. Since the illumination light includes a plurality of light beams with different spectral bands, and the band lengths of the light beams of different spectral bands are different (generally in the range of 230nm to 780nm), the time for the light beams of each spectral band to pass through the light incident port 111 and reach the grating device 20 is also different, which will affect the refraction efficiency of the grating device 20 for the light beams of each spectral band, and further affect the detection timeliness and accuracy of the spectral analysis element 30.

[0033] In view of the above, the grating device 20 is installed at an appropriate tilted angle so that the distances between different parts of the grating device 20 and the light incident port 111 are different, so that light in different spectral bands can reach the grating device 20 at basically the same time, and the grating device 20 can refract light in each spectral band at the same time, so that light in all spectral bands can be refracted parallel or approximately parallel to each other to reach the spectral analysis element 30, thereby solving the above-mentioned problem.

[0034] See also Figure 1Further, the side walls on opposite sides of the installation cavity are respectively formed with a first rail groove 12 and a second rail groove 13, and the first rail groove 12 and the second rail groove 13 are both extended and arranged along the depth direction of the installation cavity. The side walls on opposite sides of the grating device 20 are respectively provided with a first sliding protrusion and a second sliding protrusion, and the first sliding protrusion can be slidably arranged in the first rail groove 12, and the second sliding protrusion can be slidably arranged in the second rail groove 13. In this way, on the one hand, the grating device 20 can be installed and positioned in the installation cavity by means of the first sliding protrusion and the first rail groove 12 and the second sliding protrusion and the second rail groove 13 respectively adapted to be installed; on the other hand, the first sliding protrusion and the first rail groove 12 and the second sliding protrusion and the second rail groove 13 have a relative sliding freedom, so the installation position of the grating device 20 can be flexibly adjusted along the depth direction of the installation cavity to adapt to the installation needs of grating devices 20 with different sizes; furthermore, this sliding installation method also facilitates the removal of the grating device 20 from the installation cavity, thereby improving the convenience of the installation and disassembly operation.

[0035] Furthermore, the first rail groove 12 is embedded with a first metal strip, the first sliding protrusion is provided with a first magnetic attraction member, and the first magnetic attraction member and the first metal strip are magnetically matched; the second rail groove 13 is embedded with a second metal strip, the second sliding protrusion is provided with a second magnetic attraction member, and the second magnetic attraction member and the second metal strip are magnetically matched. The first magnetic attraction member and the first metal strip, and the second magnetic attraction member and the second metal strip maintain a continuous magnetic attraction force, so that when the grating device 20 is slidably installed to different depth positions, the magnetic attraction forces at both ends can reliably position the grating device 20, thereby improving the installation firmness and installation position accuracy of the grating device 20.

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

[0037] Alternatively, as an alternative to the above embodiment, the grating spectrometer 100 further includes a wireless communication module, and the computing controller 40 is used to communicate with the user's mobile terminal device through the wireless communication module.

[0038] Therefore, whether the display screen is directly installed on the outside of the shell 10 or connected to the user's mobile terminal device by setting up a wireless communication module, the index information obtained by analysis and calculation and related information such as whether the lighting in the current environment is healthy can be intuitively presented to the user, helping the user to adjust the lighting environment that is unfavorable to the body in time, avoid damage to eyesight, and protect eye health.

[0039] See also Figure 1In another embodiment, the grating spectrometer 100 further includes a filter 50. The light incident port 111 is provided with a step groove, and the filter 50 is clamped at the step groove. The filter 50 is used to filter out stray light in the illumination light entering from the light incident port 111, thereby preventing the 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 light.

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

[0041] For example, when there is interference light such as light generated by TV broadcasting and light from a lit computer screen in addition to the lighting light in the environment, the interference light can be blocked by rotating the shading plate 60 in an appropriate position to prevent the interference light from entering from the light incident port 111; or, the shading plate 60 can be rotated to reduce the area of ​​the blocked portion of the light incident port 111, so that more light can enter the grating spectrometer 100 per unit time, which helps to improve the accuracy of the detection results.

[0042] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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 above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A grating spectrometer, characterized in that: include: A housing, the housing comprising an incident surface, the incident surface being provided with a mounting cavity and a light incident port, the mounting cavity being in communication with the light incident port; A grating device, wherein the grating device is arranged in the mounting cavity, and the grating device is arranged opposite to the light incident port; A spectrum analysis element, which is disposed in the mounting cavity and opposite to the grating device, and is arranged on a side of the grating device away from the light incident port; as well as A computing controller is disposed in the housing and is electrically connected to the spectral analysis element.

2. The grating spectrometer according to claim 1, characterized in that The grating device is arranged obliquely in the mounting cavity.

3. The grating spectrometer according to claim 1, characterized in that: The side walls on opposite sides of the installation cavity are respectively recessed with a first rail groove and a second rail groove, and the first rail groove and the second rail groove are both extended along the depth direction of the installation cavity. The side walls on opposite sides of the grating device are respectively provided with a first sliding protrusion and a second sliding protrusion, and the first sliding protrusion can be slidably arranged in the first rail groove, and the second sliding protrusion can be slidably arranged in the second rail groove.

4. The grating spectrometer according to claim 3, characterized in that: The groove cavity of the first rail groove is embedded with a first metal strip, the first sliding protrusion is provided with a first magnetic attraction component, and the first magnetic attraction component is magnetically matched with the first metal strip; the groove cavity of the second rail groove is embedded with a second metal strip, the second sliding protrusion is provided with a second magnetic attraction component, and the second magnetic attraction component is magnetically matched with the second metal strip.

5. The grating spectrometer according to claim 1, characterized in that: The grating spectrometer further includes a display screen, which is arranged on the outer wall of the housing and is electrically connected to the computing controller.

6. The grating spectrometer according to 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.

7. The grating spectrometer according to claim 1, characterized in that: The grating spectrometer also includes a filter, the light incident port is provided with a step groove, and the filter is clamped at the step groove.

8. The grating spectrometer according to claim 1, characterized in that: The grating spectrometer also includes at least two shading plates and at least two rotating shafts, wherein the shading plates are connected to the rotating shafts in a one-to-one correspondence, and the shading plates are rotatably arranged on the incident surface through the corresponding rotating shafts, and at least two of the shading plates are arranged around the outer circumference of the light incident port, and rotating each of the shading plates can change the blocked area and blocked region of the light incident port.

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