Multi-source composite wavelength calibration light source

Abstract

The utility model discloses a kind of multi-light source composite wavelength calibration light source, including body, support seat is set in body, rotation seat is rotationally set on support seat, multiple light sources, circuit board, light module, light source switching module, rotation seat is equipped with multiple light source fixing positions, light source is set on the light source fixing position of rotation seat, circuit board is electrically connected with light source, light module includes fiber interface or / and space light interface, light source switching module is used to rotate rotation seat, so that the light source of different position is communicated with circuit board.The utility model supports the extension of multiple different light sources, spectral range can cover 200-2200nm, meet the demand of wavelength calibration of spectrometer on market;It also has detachable replacement fiber interface and space light interface, can be equipped with the measurement of probe or fiber spectrometer.

Description

Technical Field

[0001] This utility model relates to the field of optical technology, specifically a multi-source composite wavelength calibration light source. Background Technology

[0002] With the increasing demand for precise analysis in fields such as scientific research, environmental monitoring, and industrial production, the application scope of spectral analysis technology is becoming increasingly wide, and the demand for wavelength calibration light sources in various industries is also rising accordingly to ensure the accuracy and consistency of measurements.

[0003] Existing wavelength calibration light sources mainly rely on a single type of light source, such as mercury lamps, argon lamps, xenon lamps, zinc lamps, neon lamps, or krypton lamps. These light sources each have different spectral characteristics, but their wavelength ranges are relatively narrow. For example, zinc lamps have a wavelength range of 202.5-636.2 nm, neon lamps 237-966 nm, and the widely used mercury-argon lamp has a wavelength range of 253.6-1409.4 nm, with a relatively dispersed distribution of characteristic spectral lines. When calibrating high-resolution spectrometers and infrared spectrometers (1700-2500 nm), the characteristic spectral coverage and distribution do not meet the spectrometer's requirements. Calibrating a spectrometer in certain wavelength ranges may require using two or three wavelength calibration light sources. If multiple wavelength calibration light sources are used, frequent fiber optic connections to the desired light sources are necessary, a cumbersome process. Furthermore, the interfaces of wavelength calibration light sources are generally SAM905 fiber optic interfaces, which can only be connected to the spectrometer via fiber optic cable, making it impossible to calibrate a non-detachable spectrometer system (connected to the detector via fiber optic cable). Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a multi-source composite wavelength calibration light source that supports the expansion of various light sources and covers a spectral range of 200-2200nm, meeting the wavelength calibration needs of spectrometers on the market. It also features fiber optic and spatial optical interfaces, enabling the installation of detectors or fiber optic spectrometers for measurement.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] A multi-source composite wavelength calibration light source, including a housing, wherein the housing contains:

[0007] The support base is fixedly installed inside the machine body;

[0008] A rotating base is rotatably mounted on a support base, and the rotating base is provided with multiple light source fixing positions;

[0009] Multiple light sources are set at the light source fixing positions on the rotating base;

[0010] The circuit board is electrically connected to the light source;

[0011] A light-emitting module is mounted on the body, and the light-emitting module includes an optical fiber interface and / or a space optical interface;

[0012] The light source switching module is used to rotate the rotating base to connect the light source at different positions to the circuit board.

[0013] One of the light source and the circuit board is provided with a stationary contact, and the other is provided with a flexible contact. When the light source is rotated to the position of the light-emitting module, the flexible contact abuts against the stationary contact, thereby realizing the connection between the light source and the circuit board.

[0014] The machine body is also equipped with a light source driver, which is connected to the circuit board.

[0015] The light source fixing position is an open slot set on the outer periphery of the rotating seat, and the light sources of different wavelengths are fixedly installed in the open slot in a detachable manner.

[0016] The light source switching module includes a light source switching lever. The two side walls of the opening slot are provided with extensions that extend radially outward to form the light source switching lever. The body is provided with a lever slot that is adapted to the running trajectory of the light source switching lever.

[0017] The lever slots are provided in two sets facing each other.

[0018] The body is provided with a positioning button that fixes the light source, and the light source or rotating base is provided with a positioning structure that cooperates with the positioning button.

[0019] The positioning structure is a positioning hole provided on the rotating base or the light source; or the positioning structure is a positioning base with a positioning hole provided on the rotating base or the light source.

[0020] The fiber optic interface and the space optical interface are detachably connected to the body.

[0021] The light source includes element lamps.

[0022] The elemental lamps include, but are not limited to, one or more of the following: xenon lamps, mercury lamps, argon lamps, neon lamps, krypton lamps, and zinc lamps.

[0023] Compared with the prior art, the advantages of this utility model are as follows:

[0024] 1. This utility model supports the expansion of various light sources, and the spectral range can cover 200-2200nm, meeting the wavelength calibration needs of spectrometers on the market; it also has fiber optic interface and spatial optical interface, which can be equipped with detectors or fiber optic spectrometers for measurement.

[0025] 2. The light source fixing position on the rotating base of this utility model is an open slot set on the outer periphery of the rotating base. Light sources of different wavelengths are fixedly installed in the open slot in a detachable manner, which facilitates the replacement of light sources, supports the combination of multiple element lamps, and adapts to different application needs. In addition, the two side walls of the open slot are provided with extensions that extend outward in a radial direction to form a light source switching lever, which facilitates the switching of light sources.

[0026] 3. The fiber optic interface and spatial optical interface of this utility model are detachably connected to the body, which facilitates the replacement of the fiber optic interface and spatial optical interface. Attached Figure Description

[0027] Appendix Figure 1 This is a schematic diagram of the external structure of this utility model.

[0028] Appendix Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0029] Appendix Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0030] Appendix Figure 4 This is a schematic diagram of the rotating seat and positioning seat of this utility model.

[0031] Appendix Figure 5 This is a schematic diagram of the positioning button of this utility model.

[0032] Appendix Figure 6 This is a schematic diagram of the connection structure between the circuit board and the light source of this utility model.

[0033] The following are the reference numerals in the attached diagram: 1. Body; 11. Partition; 12. Lever slot; 13. Positioning button; 14. Plug-in socket; 2. Support base; 21. Column; 3. Rotating base; 31. Opening slot; 32. Extension; 4. Light source; 41. Positioning hole; 42. Positioning seat; 43. Static contact; 5. Circuit board; 51. Elastic contact; 6. Light emission module; 61. Fiber optic interface; 62. Spatial light interface; 63. Cage plate; 7. Light source switching module; 71. Light source switching lever; 8. Bearing; 9. Light source driver. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0035] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms "comprising" or "including," and similar terms as used in this utility model specification and claims, mean that the element or object preceding the term encompasses the element or object listed following the term and its equivalents, without excluding other elements or objects. Terms such as "connected," "connected," or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper" and "lower" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] like Figures 1-6As shown, this utility model provides a multi-source composite wavelength calibration light source, including a body 1. The body 1 contains a support base 2, a rotating base 3, multiple light sources 4, a circuit board 5, a light emission module 6, and a light source switching module 7. The support base 2 is fixedly installed inside the body 1. Specifically, the body 1 is divided into upper and lower cavities by a partition 11, and the support base 2 is fixedly mounted on the partition 11 by multiple columns 21. The rotating base 3 is rotatably mounted on the support base 2. Specifically, the rotating base 3 and the support base 2 are rotatably connected by a bearing 8. The rotating base 3 is connected to the inner ring of the bearing 8, and the support base 2 is connected to the outer ring of the bearing 8, to achieve a smooth 360° rotation of the rotating base 3. The rotating base 3 has multiple light source fixing positions; the multiple light sources 4 are arranged at the light source fixing positions of the rotating base 3. The multiple light sources 4 can be used to emit light signals of different wavelengths to meet the wavelength calibration needs of spectrometers on the market. The circuit board 5 is electrically connected to the light sources 4 and is used to control the switching and driving of the light sources 4. The light-emitting module 6 is mounted on the body 1. It includes an optical fiber interface 61 and / or a spatial light interface 62, used to output the optical signal from the selected light source 4, enabling measurement by a detector or fiber optic spectrometer. The optical fiber interface 61 can be an SMA905 interface or can be adapted to other M6 threaded fixing holes, used to couple the light output from the light source 4 to the optical fiber. The spatial light interface 62 contains a collimating lens or focusing lens to adjust the diameter and divergence angle of the output beam, outputting the optical signal from the light source 4 in the form of a free-space beam. The combination of the optical fiber interface 61 and the spatial light interface 62 also allows for compatibility with both optical fiber and free-space light output, meeting the needs of different optical systems. The light-emitting module 6 also includes a cage plate 63 or a cage structure mounted on the body 1 for mounting the optical fiber interface 61 and the spatial light interface 62. The light source switching module 7 is used to rotate the rotating base 3, connecting the light source 4 at different positions to the circuit board 5 to meet the requirements of different wavelengths. The light source switching module 7 can be connected to the rotating seat 3 via a motor to automatically drive the rotation of the rotating seat 3, or it can be manually rotated.

[0037] This invention supports the expansion of various light sources, has a wide spectral range, and meets the wavelength calibration needs of spectrometers on the market; moreover, the fiber optic interface and spatial optical interface of this invention can be equipped with detectors or fiber optic spectrometers for measurement.

[0038] In one embodiment, one of the light source 4 and the circuit board 5 is provided with a stationary contact 43, and the other is provided with an elastic contact 51. The elastic contact 51 can be a conductive spring pin, a conductive spring sheet, or other structures. When the light source 4 is rotated to the position of the light-emitting module 6, the elastic contact 51 abuts against the stationary contact 43, thereby realizing the connection between the light source 4 and the circuit board 5. This ensures the reliability of the connection between the light source 4 and the circuit board 5 and avoids affecting the connection between the light source 4 and the circuit board 5 when the light source 4 is rotated.

[0039] The first method: a stationary contact is provided on the circuit board 5, and an elastic contact is provided at the bottom of each of the light sources 4. When the light source 4 is rotated to the position of the light-emitting module 6, the elastic contact of the light source 4 abuts against the stationary contact on the circuit board 5, thereby realizing the electrical connection between the light source 4 and the circuit board 5.

[0040] The second method: The circuit board 5 is provided with elastic contacts 51, and each of the light sources 4 is provided with a stationary contact 43 at its bottom. When the light source 4 is rotated to the position of the light-emitting module 6, the stationary contact 43 of the light source 4 abuts against the elastic contacts 51 on the circuit board 5, thereby realizing the electrical connection between the light source 4 and the circuit board 5.

[0041] In one embodiment, a light source driver 9 is also provided inside the body 1. The light source driver 9 is connected to the circuit board 5 and is used to provide a stable current or voltage to drive the light source 4 to work.

[0042] In one embodiment, the light source fixing position is an open slot 31 set on the outer periphery of the rotating seat 3. The light sources 4 of different wavelengths are fixedly installed in the open slot 31 in a detachable manner, which facilitates the replacement of the light sources 4, supports multiple element lamp combinations, and adapts to different application needs.

[0043] In one embodiment, the light source switching module 7 includes a light source switching lever 71. The two side walls of the opening slot 31 are provided with radially outwardly extending extensions 32 to form the light source switching lever 71. The body 1 is provided with lever slots 12 adapted to the light source switching lever 71. Preferably, two sets of lever slots 12 are provided opposite to each other.

[0044] In one embodiment, a positioning button 13 for fixing the light source 4 is movably provided on the body 1, and a positioning structure that cooperates with the positioning button 13 is provided on the light source 4 or the rotating base 3.

[0045] In this embodiment, the positioning structure can be a positioning hole 41 provided on the rotating base 3 or the light source 4, or a positioning base 42 with a positioning hole 41 provided on the rotating base 3 or the light source 4. The positioning button 13 is threaded or plugged into the body 1 so that the positioning button 13 can move radially along the rotating base 3. When the positioning button 13 is connected to the positioning structure on the light source 4 or the rotating base 3, the light source 4 and the rotating base 3 are fixed to prevent accidental switching of the light source 4; when the positioning button 13 leaves the positioning structure on the light source 4 or the rotating base 3, the rotating base 3 can rotate to achieve switching of the light source 4. Figure 4 As shown, the positioning button 13 is movably mounted on the machine body 1 via a connector 14. The connector 14 is threadedly connected to the machine body 1, and the positioning button 13 is plugged into the connector 14.

[0046] In one embodiment, the light source 4 includes an element lamp for providing spectral output at a specific wavelength.

[0047] In one embodiment, the elemental lamp includes, but is not limited to, one or more of xenon lamps, mercury lamps, argon lamps, neon lamps, krypton lamps, and zinc lamps.

[0048] In one embodiment, the rotating base 3 has 6 light source fixing positions, which can be expanded to accommodate up to 6 different wavelengths of light sources. For example, xenon lamps, mercury lamps, argon lamps, neon lamps, krypton lamps, and zinc lamps are respectively installed on the 6 light source fixing positions, and the spectral range can cover 200-2200nm, meeting the wavelength calibration requirements of spectrometers on the market.

[0049] Those skilled in the art should understand that the specific embodiments described above are merely examples and not limitations. Various modifications, combinations, partial combinations, and substitutions can be made to the embodiments of this utility model according to design requirements and other factors, as long as they are within the scope of the appended claims or their equivalents, and thus fall within the scope of the rights to be protected by this utility model.

Claims

1. A multi-source composite wavelength calibration light source, including a body, characterized in that, The machine body is equipped with: The support base is fixedly installed inside the machine body; A rotating base is rotatably mounted on a support base, and the rotating base is provided with multiple light source fixing positions; Multiple light sources are set at the light source fixing positions on the rotating base; The circuit board is electrically connected to the light source; A light-emitting module is mounted on the body, and the light-emitting module includes an optical fiber interface and / or a space optical interface; The light source switching module is used to rotate the rotating base to connect the light source at different positions to the circuit board.

2. The multi-source composite wavelength calibration light source according to claim 1, characterized in that, One of the light source and the circuit board is provided with a stationary contact, and the other is provided with a flexible contact. When the light source is rotated to the position of the light-emitting module, the flexible contact abuts against the stationary contact, thereby realizing the connection between the light source and the circuit board.

3. The multi-source composite wavelength calibration light source according to claim 1, characterized in that, The machine body is also equipped with a light source driver, which is connected to the circuit board.

4. The multi-source composite wavelength calibration light source according to claim 1, characterized in that, The light source fixing position is an open slot set on the outer periphery of the rotating seat, and the light source is fixedly installed in the open slot in a detachable manner.

5. The multi-source composite wavelength calibration light source according to claim 4, characterized in that, The light source switching module includes a light source switching lever. The two side walls of the opening slot are provided with extensions that extend radially outward to form the light source switching lever. The body is provided with a lever slot that is adapted to the running trajectory of the light source switching lever.

6. The multi-source composite wavelength calibration light source according to claim 5, characterized in that, The lever slots are provided in two sets facing each other.

7. The multi-source composite wavelength calibration light source according to claim 1, characterized in that, The body is provided with a positioning button that fixes the light source, and the light source or rotating base is provided with a positioning structure that cooperates with the positioning button.

8. The multi-source composite wavelength calibration light source according to claim 7, characterized in that, The positioning structure is a positioning hole provided on the rotating base or the light source; or the positioning structure is a positioning base with a positioning hole provided on the rotating base or the light source.

9. The multi-source composite wavelength calibration light source according to claim 1, characterized in that, The fiber optic interface and the space optical interface are detachably connected to the body.

10. The multi-source composite wavelength calibration light source according to claim 1, characterized in that, The light source includes element lamps, which include one or more of the following: xenon lamps, mercury lamps, argon lamps, neon lamps, krypton lamps, and zinc lamps.

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