Automatic monochromator

Abstract

The invention discloses an automatic monochromator, and belongs to the technical field of optical instruments, the automatic monochromator comprises a monochromator shell, the upper surface of the monochromator shell is in bolted connection with a lamp chamber frame, the surface of the monochromator shell is in bolted connection with an automatic wavelength motor, and the output end of the automatic wavelength motor is fixedly connected with a grating; the outer wall of the lamp chamber frame is in bolted connection with a deuterium lamp holder, and the outer wall of the lamp chamber frame is in bolted connection with a tungsten lamp holder; and the inner wall of the monochromator shell is fixedly connected with a reflecting mirror II. When the automatic monochromator is used, visible light enters the monochromator shell through the first slit piece, passes through the second reflecting mirror and the third reflecting mirror and is gathered on the optical grating, the optical grating divides the visible light into monochromatic light, then the monochromatic light goes out of the monochromator shell through the second slit piece, the operation process is fast and convenient, and the monochromatic light is emitted out of the monochromator shell through the first reflecting mirror and the first reflecting mirror. The device has an automatic light searching structure and is high in working efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of optical instruments, in particular to an automatic monochromator. Background Art

[0002] An automatic monochromator is mainly used in an automatic monochromator. An automatic monochromator has an incident slit, a collimating element and a dispersion element, and also has a focusing element box and an exit slit. An automatic monochromator is mainly used in chemical analysis, biomedical research and environmental monitoring, such as the ultraviolet-visible detector monochromator with application number 201010243699.6. When it is working, because the light box is a horizontal light box, when it is necessary to replace the tungsten lamp, only the front panel and the front sheet metal door panel of the monochromator need to be opened, and the tungsten lamp can be directly removed; when replacing the deuterium lamp, only the two screws on the deuterium lamp need to be unscrewed, that is, the deuterium lamp is pulled out, realizing a simple and convenient lamp replacement operation; and a light hole with holmium glass is arranged on the filter disc, and the wavelength calibration of the monochromator can be carried out through the holmium glass.

[0003] However, during use, when the operator needs to accurately adjust the wavelength, it is difficult. The monochromator in the above application does not have an automatic light-seeking structure and an automatic wavelength calibration structure during use, and its working efficiency is low. Therefore, we propose an automatic monochromator to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide an automatic monochromator to solve the problem in the above background technology that the automatic light-seeking structure and the automatic wavelength calibration structure are not provided during use, resulting in low working efficiency.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic monochromator, comprising a monochromator housing, the upper surface of the monochromator housing is bolted to a lamp chamber frame, the surface of the monochromator housing is bolted to an automatic wavelength motor, and the output end of the automatic wavelength motor is fixedly connected to a grating; a deuterium lamp holder is bolted to the outer wall of the lamp chamber frame, and a tungsten lamp holder is bolted to the outer wall of the lamp chamber frame; a second reflector is fixedly connected to the inner wall of the monochromator housing, and a third reflector is fixedly connected to the inner wall of the monochromator housing; a reflector motor is bolted to the outer wall of the lamp chamber frame, and the output end of the reflector motor is fixedly connected to a first reflector.

[0006] Preferably, a deuterium lamp body is fixedly connected to the surface of the deuterium lamp holder, and a tungsten lamp body is fixedly connected to the surface of the tungsten lamp holder.

[0007] Preferably, a first slit is fixedly connected to the surface of the monochromator housing, a second slit is fixedly connected to the upper surface of the monochromator housing, and a shading plate is bolted to the inner wall of the lamp chamber frame.

[0008] Preferably, a limiting component 1 is fixedly connected to the inner wall of the lamp chamber frame, a terminal 1 is fixedly connected to the outer wall of the lamp chamber frame, and a terminal 2 is fixedly connected to the outer wall of the lamp chamber frame.

[0009] Preferably, a filter disc motor is bolted to the outer wall of the monochromator housing, and the output end of the filter disc motor is fixedly connected to the filter disc body.

[0010] Preferably, a second limiting component is fixedly connected to the inner wall of the monochromator housing.

[0011] Preferably, a light-transmitting hole is provided on the outer wall of the monochromator housing.

[0012] Compared with the prior art, the invention has the following beneficial effects: the automatic monochromator adopts a new structural design, the specific contents of which are as follows: When the automatic monochromator is in use, visible light enters the monochromator housing through slit plate 1, passes through reflector 2 and reflector 3, and is focused on the grating. The grating divides the visible light into monochromatic light, and then the monochromatic light passes through slit plate 2 and exits the monochromator housing. The operation process is quick and convenient, and the reflector motor and reflector 1 are provided, so that the device has an automatic light-seeking structure and has high working efficiency.

[0013] Furthermore, during use, an automatic wavelength motor and a grating are provided to form an automatic wavelength assembly, so that the device has an automatic wavelength function, thereby improving the overall flexibility of the device and further improving work efficiency.

[0014] When the automatic monochromator is working, the deuterium lamp body provides an ultraviolet light source, which provides a suitable light source for the absorption characteristics of the substance in the ultraviolet light region.

[0015] Furthermore, during the working process, the tungsten lamp body provides a visible light source, which plays a role in assisting near-infrared analysis.

[0016] Furthermore, when working, the filter disc motor will drive the filter disc to work, and the filter disc can help obtain light of a specific wavelength and remove stray light. Moreover, when the filter disc is working, it also has the function of achieving color change and color correction matching.

[0017] (3) When the automatic monochromator is working, the light-transmitting hole plays the role of observation and debugging. The technicians can observe the light path inside the monochromator housing through the light-transmitting hole. The light-transmitting hole also has the function of heat dissipation, preventing the temperature inside the monochromator housing from being too high due to heat from the light source, which would affect the performance and stability of the instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a schematic diagram of the connection structure between the monochromator housing and the lamp chamber frame of the present invention; Figure 2 This is a schematic diagram of the connection structure between the monochromator housing and the filter disc motor of the present invention; Figure 3 This is a schematic diagram of the connection structure between the lamp room frame and the reflector motor of the present invention; Figure 4 This is a schematic diagram of the light transmission hole distribution structure of the present invention; Figure 5 This is a schematic diagram of the second distribution state structure of the slit sheet of the present invention; Figure 6 The figure is a schematic diagram of the connection structure between the lamp chamber frame and the reflector of the present invention.

[0019] In the figure: 1. monochromator housing; 2. lamp chamber frame; 3. automatic wavelength motor; 4. shading plate; 5. deuterium lamp body; 6. tungsten lamp body; 7. reflector one; 8. limit assembly one; 9. slit one; 10. filter disc motor; 11. terminal one; 12. terminal two; 13. reflector motor; 14. deuterium lamp holder; 15. tungsten lamp holder; 16. reflector two; 17. grating; 18. limit assembly two; 19. filter disc body; 20. reflector three; 21. light transmission hole; 22. slit two. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The present invention provides the following technical solution: an automatic monochromator is disclosed: Embodiment 1: By setting the reflector motor 13 and the reflector 7, the device has an automatic light-seeking structure with high working efficiency. The automatic wavelength motor 3 and the grating 17 are also set to enable the device to have an automatic wavelength function, such as Figure 1-Figure 6 As shown, it includes a monochromator housing 1, a lamp chamber frame 2 is bolted to the upper surface of the monochromator housing 1, and an automatic wavelength motor 3 is bolted to the surface of the monochromator housing 1, and the output end of the automatic wavelength motor 3 is fixedly connected to a grating 17; a reflector motor 13 is bolted to the outer wall of the lamp chamber frame 2, and the output end of the reflector motor 13 is fixedly connected to a reflector 7.

[0022] When in use, visible light enters the monochromator housing 1 through the slit plate 1 9, passes through the reflector 2 16 and the reflector 3 20, and is focused on the grating 17. The grating 17 divides the visible light into monochromatic light, and then the monochromatic light passes through the slit plate 22 and exits the monochromator housing 1. The operation process is quick and convenient, and the reflector motor 13 and the reflector 1 7 are set, so that the device has an automatic light-seeking structure with high working efficiency. During use, the automatic wavelength motor 3 and the grating 17 are also set to form an automatic wavelength component, so that the device has the function of automatic wavelength, thereby improving the overall flexibility of the device and further improving the working efficiency.

[0023] Embodiment 2: Different from Embodiment 1, the deuterium lamp body 5 can provide an ultraviolet light source, and the tungsten lamp body 6 can provide a visible light source, such as Figure 1-Figure 4 As shown, a deuterium lamp holder 14 is bolted to the outer wall of the lamp chamber frame 2, and a tungsten lamp holder 15 is bolted to the outer wall of the lamp chamber frame 2, a reflector 2 16 is fixedly connected to the inner wall of the monochromator housing 1, and a reflector 3 20 is fixedly connected to the inner wall of the monochromator housing 1, a deuterium lamp body 5 is fixedly connected to the surface of the deuterium lamp holder 14, and a tungsten lamp body 6 is fixedly connected to the surface of the tungsten lamp holder 15.

[0024] A slit sheet 1 9 is fixedly connected to the surface of the monochromator housing 1, and a slit sheet 2 22 is fixedly connected to the upper surface of the monochromator housing 1, a shading plate 4 is bolted to the inner wall of the lamp chamber frame 2, a limiting component 1 8 is fixedly connected to the inner wall of the lamp chamber frame 2, a terminal 1 11 is fixedly connected to the outer wall of the lamp chamber frame 2, and a terminal 2 12 is fixedly connected to the outer wall of the lamp chamber frame 2, a filter disc motor 10 is bolted to the outer wall of the monochromator housing 1, and a filter disc body 19 is fixedly connected to the output end of the filter disc motor 10, a limiting component 2 18 is fixedly connected to the inner wall of the monochromator housing 1, and a light-transmitting hole 21 is opened on the outer wall of the monochromator housing 1.

[0025] When working, the deuterium lamp body 5 provides an ultraviolet light source, which provides a suitable light source for the absorption characteristics of the substance in the ultraviolet light region. At the same time, during the working process, the tungsten lamp body 6 provides a visible light source, which plays a role in assisting near-infrared analysis. At the same time, when working, the filter disc motor 10 will drive the filter disc 19 to work. The filter disc 19 can help obtain light of a specific wavelength and remove stray light. Moreover, when the filter disc 19 is working, it also has the function of realizing color change and color correction matching. When the monochromator housing 1 is working, the light transmission hole 21 plays the role of observation and debugging. The technician can observe the optical path inside the monochromator housing 1 through the light transmission hole 21, and the light transmission hole 21 also has the function of heat dissipation to prevent the temperature inside the monochromator housing 1 from being too high due to the heat of the light source and other reasons, thereby affecting the performance and stability of the instrument.

[0026] The above is the working process of the entire device, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic monochromator, comprising a monochromator housing (1), wherein a lamp chamber frame (2) is bolted to the upper surface of the monochromator housing (1), an automatic wavelength motor (3) is bolted to the surface of the monochromator housing (1), and a grating (17) is fixedly connected to the output end of the automatic wavelength motor (3); Features: A deuterium lamp holder (14) is bolted to the outer wall of the lamp chamber frame (2), and a tungsten lamp holder (15) is bolted to the outer wall of the lamp chamber frame (2); A second reflector (16) is fixedly connected to the inner wall of the monochromator housing (1), and a third reflector (20) is fixedly connected to the inner wall of the monochromator housing (1); A reflector motor (13) is bolted to the outer wall of the lamp chamber frame (2), and a reflector 1 (7) is fixedly connected to the output end of the reflector motor (13).

2. An automatic monochromator according to claim 1, characterized in that: The surface of the deuterium lamp holder (14) is fixedly connected to a deuterium lamp body (5), and the surface of the tungsten lamp holder (15) is fixedly connected to a tungsten lamp body (6).

3. An automatic monochromator according to claim 1, characterized in that: A slit sheet 1 (9) is fixedly connected to the surface of the monochromator housing (1), and a slit sheet 2 (22) is fixedly connected to the upper surface of the monochromator housing (1), and a light shielding plate (4) is bolted to the inner wall of the lamp chamber frame (2).

4. The automatic monochromator according to claim 1, characterized in that: A limiting component one (8) is fixedly connected to the inner wall of the lamp chamber frame (2), a terminal one (11) is fixedly connected to the outer wall of the lamp chamber frame (2), and a terminal two (12) is fixedly connected to the outer wall of the lamp chamber frame (2).

5. The automatic monochromator according to claim 1, characterized in that: A filter disc motor (10) is bolted to the outer wall of the monochromator housing (1), and a filter disc body (19) is fixedly connected to the output end of the filter disc motor (10).

6. The automatic monochromator according to claim 1, characterized in that: A second limiting component (18) is fixedly connected to the inner wall of the monochromator housing (1).

7. The automatic monochromator according to claim 1, characterized in that: A light-transmitting hole (21) is provided on the outer wall of the monochromator housing (1).

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