Manual ultraviolet monochromator assembly

Abstract

The utility model discloses a manual ultraviolet monochromator assembly, which relates to the field of monochromators, and comprises a monochromator shell, the manual monochromator assembly used for adjusting monochromatic light is arranged behind the monochromator shell, the manual monochromator assembly comprises a manual wavelength knob, the top of the monochromator shell is fixedly connected with a lamp chamber shell, and the lamp chamber shell is fixedly connected with a light source. An automatic light searching assembly used for automatically searching light is arranged on the front face of the top of the lamp chamber shell. The automatic light searching assembly comprises a reflector motor body. A deuterium lamp holder is fixedly installed on the front face of the lamp chamber shell, and a deuterium lamp body is fixedly connected to the position, located in the monochromator shell, of the rear face of the deuterium lamp holder. By arranging the deuterium lamp body, the tungsten lamp body and the reflector motor body, automatic light searching and automatic light source switching of the ultraviolet monochromator can be achieved, the sun shield is arranged, unnecessary light can be shielded, the manual wavelength knob and the filter disc motor body are arranged, and wavelength can be manually and flexibly selected and accurately controlled.

Description

Technical Field

[0001] This utility model relates to the field of ultraviolet monochromator technology, specifically to a manual ultraviolet monochromator assembly. Background Technology

[0002] An ultraviolet monochromator is a device that can decompose composite light into monochromatic light. Its main function is to decompose composite light containing multiple wavelengths into monochromatic light of a single wavelength. It is widely used in ultraviolet spectrometers. However, existing ultraviolet monochromator components have limited internal space due to their simple structure, making it impossible to integrate the external optical path system into the monochromator, which reduces the light source efficiency.

[0003] To overcome the above-mentioned defects, the prior art (Chinese patent application number: 202322620410.3, application date: 2023.09.26) discloses a monochromator structure for a manual spectrophotometer. The monochromator structure is made of special plastic by injection molding. This monochromator also integrates an external optical path system, which greatly simplifies the structure and shape design of the instrument. The internal and external optical paths of the monochromator are integrally formed, which greatly improves the structural reliability and stability.

[0004] Although existing technologies can solve the problem of integrating an external optical path system into a monochromator, and improve structural reliability and stability through injection molding, the design does not take into account the mechanical structure and sensor layout required for automatic light seeking. Therefore, it cannot meet the requirements of automatic light seeking and automatic light source switching of the monochromator. Furthermore, the monochromator's internal and external optical paths are integrally molded, which limits the flexible selection and precise control of wavelength.

[0005] Therefore, we proposed that a manual UV monochromator assembly can effectively solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a manual ultraviolet monochromator assembly to solve the problems mentioned in the background art. In the current monochromator structure, although injection molding improves the structural reliability and stability, the design does not take into account the mechanical structure and sensor layout required for automatic light seeking, thus failing to meet the requirements of automatic light seeking and automatic light source switching. Furthermore, the monochromator's internal and external optical paths are integrally molded, which limits the flexible selection and precise control of wavelength.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a manual ultraviolet monochromator assembly, comprising a monochromator housing, a manual monochromator component for adjusting monochromatic light disposed at the rear of the monochromator housing, the manual monochromator component including a manual wavelength knob, a lamp chamber housing fixedly connected to the top of the monochromator housing, an automatic light-finding component for automatic light-finding disposed on the front of the top of the lamp chamber housing, the automatic light-finding component including a reflector motor body; a deuterium lamp holder fixedly mounted on the front of the lamp chamber housing, a deuterium lamp body fixedly connected to the rear of the deuterium lamp holder inside the monochromator housing, a tungsten lamp holder fixedly mounted on the front of the left side of the lamp chamber housing, a tungsten lamp body fixedly connected to the rear of the tungsten lamp holder inside the monochromator housing; a slit plate connected to the left side of the monochromator housing, and a filter disc assembly for automatically selecting wavelength light disposed at the bottom of the left side of the monochromator housing, the filter disc assembly including a filter disc motor body.

[0008] As a preferred technical solution of this application, a first terminal is provided on the front of the lamp housing above the deuterium lamp holder, a second terminal is provided on the front of the lamp housing above the tungsten lamp holder, a sunshade is fixedly installed on the rear of the lamp housing between the deuterium lamp body and the tungsten lamp body, and a first limiting component is fixedly installed on the top of the rear of the lamp housing.

[0009] As a preferred technical solution of this application, the reflector motor body is located on the front of the lamp chamber shell, and the output shaft of the reflector motor body is fixedly mounted with a reflector assembly via a coupling.

[0010] As a preferred technical solution of this application, the filter disc motor body is located on the left side of the monochromator housing, the output shaft of the filter disc motor body is fixedly mounted on the filter disc body via a coupling, and a second limiting component is fixedly mounted on the inner wall of the left side of the monochromator housing.

[0011] As a preferred technical solution of this application, the manual wavelength knob is located at the rear of the monochromator housing, a rotating rod is fixedly connected to the front of the manual wavelength knob, the end of the rotating rod penetrates through the monochromator housing, a manual wavelength sensing component is fixedly connected to the front of the rotating rod, a grating component is drivenly connected to the left side of the manual wavelength sensing component, and a rotating shaft is fixedly installed at the rear of the grating component.

[0012] As a preferred technical solution of this application, the reflector assembly is rotatably connected to the lamp chamber shell, and the reflector assembly is movably connected to the first limiting assembly. The reflector assembly is driven to rotate within a certain range inside the lamp chamber shell by the output shaft of the reflector motor body.

[0013] As a preferred technical solution of this application, the grating assembly and the rotating shaft are tightly fitted together, and the rotating shaft is rotatably connected to the monochromator housing. The rotation of the rotating rod further drives the grating assembly and the rotating shaft to rotate on the monochromator housing.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This manual ultraviolet monochromator assembly, by setting up a deuterium lamp body, a tungsten lamp body, and a reflector motor body, can realize automatic light seeking and automatic light source switching of the ultraviolet monochromator. It also features a sunshade to block unwanted light, and a manual wavelength knob and a filter disc motor body, allowing for flexible and precise manual selection and control of the wavelength. Specific details are as follows:

[0015] 1. A deuterium lamp body, a tungsten lamp body, and a reflector motor body are provided. The deuterium lamp body, the tungsten lamp body, the first terminal, the second terminal, the sunshade, the reflector motor body, the reflector assembly, the lamp chamber shell, and the first limiting assembly cooperate with each other to enable the ultraviolet monochromator to automatically seek light and automatically switch light sources.

[0016] Furthermore, a sunshade is provided between the deuterium lamp body and the tungsten lamp body to block unwanted light. In particular, when one light source is turned on, the sunshade can effectively reduce stray light interference from the other light source, thereby improving the stability of the optical path and the accuracy of the measurement.

[0017] Furthermore, a first limiting component is provided to limit the rotation range of the reflector assembly, ensuring that it does not exceed the preset safety area, thereby protecting the reflector assembly and surrounding components from damage.

[0018] 2. It is equipped with a manual wavelength knob and a filter disc motor body. Through the cooperation of the filter disc motor body, filter disc body, manual wavelength knob, rotating rod, manual wavelength sensing component, grating component and rotating shaft, the wavelength can be flexibly selected and precisely controlled manually. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the right-side structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the left-side structure of this utility model;

[0023] Figure 5 This is a partial cross-sectional structural diagram of the lamp chamber shell of this utility model;

[0024] Figure 6 This is a top view cross-sectional structural diagram of the lamp chamber shell of this utility model.

[0025] In the diagram: 1. Monochromator housing; 2. Lamp chamber housing; 3. Deuterium lamp holder; 4. Deuterium lamp body; 5. Tungsten lamp holder; 6. Tungsten lamp body; 7. Reflector motor body; 8. Reflector assembly; 9. Sunshade; 10. First limiting assembly; 11. First terminal; 12. Second terminal; 13. Slit plate; 14. Filter disc motor body; 15. Filter disc body; 16. Second limiting assembly; 17. Manual wavelength knob; 18. Rotating rod; 19. Manual wavelength sensing assembly; 20. Grating assembly; 21. Rotating shaft. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-6 The present invention provides the following technical solution:

[0028] Example 1: To address the issue that commercially available monochromator structures, while injection molding improves structural reliability and stability, often fail to consider the mechanical structure and sensor layout required for automatic light-finding, thus hindering automatic light-finding and light source switching, this example presents a manual ultraviolet monochromator assembly. (See attached diagram.) Figure 1 -Appendix Figure 6The system includes a monochromator housing 1, a manual monochromator assembly for adjusting monochromatic light located at the rear of the monochromator housing 1, a manual wavelength knob 17, a lamp chamber housing 2 fixedly connected to the top of the monochromator housing 1, an automatic light-finding assembly for automatic light-finding located on the front of the top of the lamp chamber housing 2, the automatic light-finding assembly including a reflector motor body 7; a deuterium lamp holder 3 fixedly mounted on the front of the lamp chamber housing 2, a deuterium lamp body 4 fixedly connected to the rear of the deuterium lamp holder 3 inside the monochromator housing 1, a tungsten lamp holder 5 fixedly mounted on the front of the left side of the lamp chamber housing 2, and a tungsten lamp body 6 fixedly connected to the rear of the tungsten lamp holder 5 inside the monochromator housing 1; a slit plate 13 connected to the left side of the monochromator housing 1. A filter disc assembly for automatically selecting wavelength light is provided at the bottom left side. The filter disc assembly includes a filter disc motor body 14. A first terminal 11 is provided on the front of the lamp housing 2 above the deuterium lamp holder 3, and a second terminal 12 is provided on the front of the lamp housing 2 above the tungsten lamp holder 5. A sunshade 9 is fixedly installed on the rear of the lamp housing 2 between the deuterium lamp body 4 and the tungsten lamp body 6. A first limiting component 10 is fixedly installed on the top of the rear of the lamp housing 2. A reflector motor body 7 is located on the front of the lamp housing 2. A reflector assembly 8 is fixedly installed on the output shaft of the reflector motor body 7 through a coupling. The reflector assembly 8 is rotatably connected to the lamp housing 2, and the reflector assembly 8 is movably connected to the first limiting component 10.

[0029] The deuterium lamp body 4 and the tungsten lamp body 6 are respectively installed inside the lamp housing 2. They are connected to an external control board via the first terminal 11 and the second terminal 12 on the front of the lamp housing 2. The user selects to turn on either the deuterium lamp body 4 or the tungsten lamp body 6 using the external control board, based on the desired light source. The deuterium lamp body 4 is mainly used in the ultraviolet region, providing stable ultraviolet radiation in the wavelength range of 170nm to 370nm. The tungsten lamp body 6 is used in the visible to near-infrared region, emitting high-brightness light in the wavelength range of 300nm to 3300nm. A sunshade 9 is placed between the deuterium lamp body 4 and the tungsten lamp body 6 to block unwanted light. Especially when one light source is on, the sunshade 9 effectively reduces stray light interference from the other light source, thereby improving the stability of the optical path and the accuracy of the measurement. When either the deuterium lamp body 4 or the tungsten lamp body 6 is on to generate a light source, the external... Simultaneously, the control board starts the reflector motor body 7, thereby driving the reflector assembly 8 to rotate within a certain range inside the lamp chamber housing 2. The rotation angle and position of the reflector assembly 8 are precisely controlled by the external control board according to the requirements to adapt to different light reflection needs. The rotation of the reflector assembly 8 reflects and guides the light source generated by the deuterium lamp body 4 or the tungsten lamp body 6. Thus, according to the instructions of the external control board, the reflector assembly 8 reflects and guides the light source generated by the deuterium lamp body 4 or the tungsten lamp body 6, guiding the light into the monochromator housing 1 for further processing. The first limiting component 10 is used to limit the rotation range of the reflector assembly 8 to ensure that it does not exceed the preset safety area, thereby protecting the reflector assembly 8 and surrounding components from damage, and enabling the ultraviolet monochromator to perform automatic light seeking and automatic light source switching.

[0030] Example 2: This embodiment enables flexible wavelength selection and precise control. The manual ultraviolet monochromator component in this example can be found in the attached diagram. Figure 1 -Appendix Figure 4 The filter optical motor body 14 is located on the left side of the monochromator housing 1. The output shaft of the filter optical motor body 14 is fixedly mounted with the filter optical motor body 15 via a coupling. The second limiting component 16 is fixedly mounted on the inner wall of the left side of the monochromator housing 1. The manual wavelength knob 17 is located at the rear of the monochromator housing 1. The front of the manual wavelength knob 17 is fixedly connected with a rotating rod 18. The end of the rotating rod 18 passes through the monochromator housing 1. The front of the rotating rod 18 is fixedly connected with a manual wavelength sensing component 19. The left side of the manual wavelength sensing component 19 is connected to a grating component 20. The rear of the grating component 20 is fixedly mounted with a rotating shaft 21. The grating component 20 and the rotating shaft 21 are tightly fitted together, and the rotating shaft 21 and the monochromator housing 1 are rotatably connected.

[0031] The filter disc motor 14 is started by an external control board, which causes the output shaft of the filter disc motor 14 to drive the filter disc 15 to rotate. Different wavelength filters are set on the filter disc 15. As the filter disc 15 rotates, the filters of different wavelengths will be aligned with the light path in sequence. Then, the user manually operates the manual wavelength knob 17 located at the back of the monochromator housing 1 to rotate it. The rotation of the manual wavelength knob 17 drives the manual wavelength sensing component 19 connected to the rotating rod 18 to rotate. The rotation of the rotating rod 18 further drives the grating component 20 and the rotating shaft 21 to rotate on the monochromator housing 1. The grating component 20 can select the light path according to the wavelength. As the grating component 20 rotates, the position of the grating will change, thereby affecting the wavelength of the light passing through. The wavelength can be flexibly selected and precisely controlled manually.

[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A manual ultraviolet monochromator assembly, comprising a monochromator housing (1), wherein a manual monochromator assembly for adjusting monochromatic light is provided at the rear of the monochromator housing (1), the manual monochromator assembly includes a manual wavelength knob (17), a lamp chamber housing (2) is fixedly connected to the top of the monochromator housing (1), and an automatic light-finding assembly for automatically finding light is provided on the front of the top of the lamp chamber housing (2), the automatic light-finding assembly including a reflector motor body (7). Its features are: A deuterium lamp holder (3) is fixedly installed on the front of the lamp chamber shell (2). A deuterium lamp body (4) is fixedly connected to the back of the deuterium lamp holder (3) inside the monochromator shell (1). A tungsten lamp holder (5) is fixedly installed on the front of the left side of the lamp chamber shell (2). A tungsten lamp body (6) is fixedly connected to the back of the tungsten lamp holder (5) inside the monochromator shell (1). A slit plate (13) is connected to the left side of the monochromator housing (1), and a filter disc assembly for automatically selecting wavelength light is provided at the bottom of the left side of the monochromator housing (1). The filter disc assembly includes a filter disc motor body (14).

2. The manual ultraviolet monochromator assembly according to claim 1, characterized in that: The front of the lamp housing (2) is provided with a first terminal (11) above the deuterium lamp holder (3), the front of the lamp housing (2) is provided with a second terminal (12) above the tungsten lamp holder (5), a sunshade (9) is fixedly installed on the back of the lamp housing (2) between the deuterium lamp body (4) and the tungsten lamp body (6), and a first limiting component (10) is fixedly installed on the top of the back of the lamp housing (2).

3. A manual ultraviolet monochromator assembly according to claim 1, characterized in that: The reflector motor body (7) is located on the front of the lamp chamber shell (2), and the output shaft of the reflector motor body (7) is fixedly mounted with a reflector assembly (8) via a coupling.

4. A manual ultraviolet monochromator assembly according to claim 1, characterized in that: The filter disc motor body (14) is located on the left side of the monochromator housing (1). The output shaft of the filter disc motor body (14) is fixedly mounted with the filter disc body (15) via a coupling. The second limiting component (16) is fixedly mounted on the inner wall of the left side of the monochromator housing (1).

5. A manual ultraviolet monochromator assembly according to claim 1, characterized in that: The manual wavelength knob (17) is located behind the monochromator housing (1). A rotating rod (18) is fixedly connected to the front of the manual wavelength knob (17). The end of the rotating rod (18) passes through the monochromator housing (1). A manual wavelength sensing component (19) is fixedly connected to the front of the rotating rod (18). A grating component (20) is driven to the left side of the manual wavelength sensing component (19). A rotating shaft (21) is fixedly installed behind the grating component (20).

6. A manual ultraviolet monochromator assembly according to claim 3, characterized in that: The reflector assembly (8) is rotatably connected to the lamp chamber shell (2), and the reflector assembly (8) is movably connected to the first limiting assembly (10).

7. A manual ultraviolet monochromator assembly according to claim 5, characterized in that: The grating assembly (20) is tightly fitted with the rotating shaft (21), and the rotating shaft (21) is rotatably connected to the monochromator housing (1).

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