Adjustable spectrometer

Abstract

The utility model discloses an adjustable spectrometer which comprises a shell and a bearing seat arranged on the shell and used for bearing a light source, an imaging sensor is arranged on one side of the bearing seat, the light receiving surface of the imaging sensor and the light emitting surface of the light source are located on the same side, and a light transmission line is arranged between the imaging sensor and the light source. The light transmission line at least comprises a first optical element, a grating and a second optical element which are sequentially arranged on the shell along the motion trail of light beams emitted by the light source, the first optical element and the grating are fixedly arranged on the shell, and the second optical element can horizontally move on the shell and deflect in the horizontal moving direction. The beneficial effects of the utility model are mainly reflected as follows: the design is exquisite, the light beam emitted by the light source passes through the first optical element, the grating and the second optical element in sequence and then enters the imaging sensor, the layout is compact, the high integration is realized, the occupied space is reduced, the overall size can be greatly reduced, the reasonable layout is convenient, and the applicability is wide.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of spectrometer, specifically, especially, a kind of adjustable spectrometer. BACKGROUND

[0002] Ultraviolet spectrometer is the instrument of detecting ultraviolet and visible light energy.Ultraviolet spectrometer is mainly used for the identification of compound, purity check, the determination of isomer, the determination of steric hindrance, the determination of hydrogen bond strength and other related quantitative analysis.Ultraviolet spectrometer must complete imaging point adjustment, imaging mirror focal point adjustment, wavelength positioning adjustment and other optical path adjustment work when manufacturing debugging, after the above parameters are adjusted, ultraviolet spectrometer can work normally.In existing ultraviolet micro spectrometer, the structure of each part in spectrometer, such as imaging mirror, grating, etc.

[0003] As the authorized announcement No.CN219830106U discloses a kind of ultraviolet micro spectrometer, including shell and bottom plate, shell and bottom plate composition cavity, imaging sensor, imaging mirror, collimating mirror and grating are arranged in cavity, imaging sensor is slidably connected between bottom plate, the bottom end of sliding connection piece is located below bottom plate;The pitch angle of imaging mirror is adjusted by adjusting top screw, adjusting top screw and shell are screw-connected;Grating is rotatably connected between bottom plate, the bottom end of rotating connection piece is located outside cavity;It further includes central control circuit board, central control circuit board is located outside cavity, by flexible flat wire and the circuit board of imaging sensor electrically connected.However, the layout of each component in the spectrometer is unreasonable, increase overall size, have greater limitation.In addition, imaging mirror and grating also need to be adjusted respectively, respectively adjust time-consuming and laborious, increase operation difficulty, and inefficient, have wide limitation, in addition, the adjustment stability of grating is poor, cannot ensure the accuracy of adjustment, so that measurement has defect, have wide limitation. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the insufficient of prior art, provide a kind of adjustable spectrometer.

[0005] The utility model discloses the purpose is realized by the following technical scheme:

[0006] An adjustable spectrometer comprises a housing and a carrier arranged on the housing to carry a light source, one side of the carrier is provided with an imaging sensor, the light receiving surface of the imaging sensor is on the same side as the light emitting surface of the light source, and a light transmission path is arranged between the imaging sensor and the light source, the light transmission path comprises at least a first optical element, a grating and a second optical element arranged on the housing along the movement track of the light beam emitted by the light source in sequence, the first optical element and the grating are fixed on the housing, and the second optical element can move horizontally on the housing and make a deflection movement along the horizontal movement direction.

[0007] Preferably, a rotating shaft is fixed on the housing, a pipe hole is arranged on the second optical element and matched with the rotating shaft, the second optical element is sleeved on the rotating shaft, and an axial limiting assembly for limiting the horizontal movement of the second optical element on the rotating shaft and a radial limiting assembly for limiting the overturning of the second optical element on the rotating shaft are arranged on the second optical element.

[0008] Preferably, the axial limiting assembly comprises at least a jackscrew hole arranged on two sides of the second optical element, a jack screw matched with the jackscrew hole is arranged in the jackscrew hole, and the jack screw penetrates through the jackscrew hole and abuts against the rotating shaft at the end side.

[0009] Preferably, the radial limiting assembly comprises at least a positioning hole arranged on the second optical element, a locking bolt is arranged in the positioning hole, the other end of the locking bolt is screwed on the housing, a spring is sleeved on the locking bolt, one end of the spring abuts against the second optical element, and the other end of the spring abuts against the housing.

[0010] Preferably, the positioning hole is arranged on one side of the second optical element and does not pass through the central axis of the rotating shaft.

[0011] Preferably, limiting holes are further arranged on two sides of the second optical element, limiting bolts can be arranged in the limiting holes, and the other end of the limiting bolt can be locked on the housing.

[0012] Preferably, the arrangement of the light source, the first optical element, the grating, the second optical element and the imaging sensor is Z-shaped.

[0013] The beneficial effects of the utility model mainly reflect in:

[0014] 1. The design is ingenious, the light beam emitted by the light source is sequentially injected into the imaging sensor through the first optical element, the grating and the second optical element, the layout is compact, highly integrated, the occupied space is reduced, the overall size can be greatly reduced, the reasonable layout is facilitated, and the utility model has wide applicability.

[0015] 2. By adjusting the second optical element, controllability of internal light path adjustment of the optical spectrometer can be greatly improved, and debugging and assembling time of the optical spectrometer can be greatly shortened, and work efficiency can be greatly improved. In addition, the operation mode is simple and convenient, stable and reliable, and the adjustment precision is high, and has wide applicability. BRIEF DESCRIPTION OF DRAWINGS

[0016] The technical scheme of the present application will be further described below with reference to the drawings:

[0017] Fig. 1 : the perspective view of the preferred embodiment of the present application;

[0018] Fig. 2 : the perspective view of the second optical element, the axial limiting assembly and the radial limiting assembly in the preferred embodiment of the present application. DETAILED DESCRIPTION

[0019] The present application will be described in detail below with reference to the specific embodiments shown in the drawings. However, these embodiments are not limited to the present application, and any changes in structure, method or function made by those skilled in the art based on these embodiments are included in the protection scope of the present application.

[0020] In the description of the present application, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0021] The present application will be described in detail below with reference to the specific embodiments shown in the drawings.

[0022] As Figs. 1-2The utility model discloses a kind of adjustable spectrometer, including shell 1 and the carrier seat 2 for carrying light source set on it, the carrier seat 2 one side is equipped with imaging sensor 3, the light receiving surface 31 of the imaging sensor 3 is with the light emitting surface of the light source in the same side, and imaging sensor 3 is equipped with light ray transmission line between light source, the light ray transmission line at least includes first optical element 4, grating 5 and second optical element 6 sequentially arranged on the shell 1 along the movement track of the light beam emitted by the light source, first optical element 4 and grating 5 are fixed on the shell 1, and second optical element 6 is movably arranged on the shell 1.Specifically, the arrangement of the light source, first optical element 4, grating 5, second optical element 6 and imaging sensor 3 is Z-shaped.The above design is ingenious, and the light beam emitted by the light source sequentially passes through first optical element 4, grating 5 and second optical element 6 and enters imaging sensor 3, which is compact, highly integrated, reduces the occupied space, can greatly reduce the overall size, facilitates reasonable layout, and has wide applicability.

[0023] In the preferred embodiment, the second optical element 6 can move horizontally on the shell 1 and make a deflection motion along the horizontal movement direction. The second optical element 6 can have an automatic calibration function or can be adjusted by a person. The adjustment method is not limited, and all belong to the protection scope of the utility model. By adjusting the second optical element 6, the controllability of the internal light path adjustment of the spectrometer can be greatly improved, the debugging and assembly time of the spectrometer can be greatly shortened, and the work efficiency can be greatly improved. In addition, the operation method is simple and convenient, stable and reliable, has high adjustment accuracy, and has wide applicability.

[0024] A rotating shaft 61 is fixed on the shell 1, a pipe perforation adapted to the rotating shaft 61 is formed on the second optical element 6, the second optical element 6 is sleeved on the rotating shaft 61, and an axial limiting assembly for limiting the horizontal movement of the second optical element 6 on the rotating shaft 61 and a radial limiting assembly for limiting the overturning of the second optical element 6 on the rotating shaft 61 are arranged on the second optical element 6.

[0025] In the preferred embodiment, the axial limiting assembly at least includes a jackscrew hole 62 formed on both sides of the second optical element 6, a jackscrew 63 adapted to the jackscrew hole 62 is arranged in the jackscrew hole 62, and the jackscrew 63 penetrates the jackscrew hole 62 and abuts against the rotating shaft 61 at the end side. The second optical element 6 is locked on the rotating shaft 61 by penetrating the jackscrew hole with the jackscrew 63. The operation is simple and convenient, stable and reliable, and greatly improves the work efficiency.

[0026] The radial limiting assembly at least comprises a positioning hole 64 formed on the second optical element 6, the positioning hole 64 is formed on one side of the second optical element 6 and is not on the central axis of the rotation shaft 61. A locking bolt 65 is arranged in the positioning hole 64, the other end of the locking bolt 65 is screwed on the shell 1, a spring 66 is sleeved on the locking bolt 65, one end of the spring 66 abuts against the second optical element 6 and the other end abuts against the shell 1. In the above, the deflection of the second optical element 6 can be controlled by adjusting the height of the locking bolt 65, the spring 66 can always exert an upward force on the second optical element 6, the second optical element 6 can be accurately positioned, the deflection of the second optical element 6 is avoided, and the working accuracy is greatly improved.

[0027] The two sides of the second optical element 6 are also provided with limiting holes 67, the limiting holes 67 can be provided with limiting bolts 68, the other end of the limiting bolt 68 can be locked on the shell 1, so as to ensure the accuracy of the position.

[0028] It should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

[0029] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the utility model, they are not used to limit the protection scope of the utility model, any equivalent embodiments or changes made without departing from the spirit of the utility model art should be included in the protection scope of the utility model.

Claims

1. An adjustable spectrometer comprising a housing (1) and a carrier seat (2) arranged thereon to carry a light source, one side of the carrier seat (2) being provided with an imaging sensor (3), characterized in that: The light receiving surface (31) of the imaging sensor (3) is on the same side of the light emitting surface of the light source, and a light transmission line is arranged between the imaging sensor (3) and the light source, the light transmission line at least includes a first optical element (4), a grating (5) and a second optical element (6) arranged in sequence on the shell (1) along the movement track of the light beam emitted by the light source, the first optical element (4) and the grating (5) are fixed on the shell (1), and the second optical element (6) can move horizontally on the shell (1) and make a deflection movement along the horizontal movement direction.

2. The tunable optical spectrometer of claim 1, wherein: A rotating shaft (61) is fixed on the shell (1), a pipe perforation matched with the rotating shaft (61) is formed on the second optical element (6), the second optical element (6) is sleeved on the rotating shaft (61), and an axial limiting assembly for limiting the horizontal movement of the second optical element (6) on the rotating shaft (61) and a radial limiting assembly for limiting the overturning of the second optical element (6) on the rotating shaft (61) are arranged on the second optical element (6).

3. The tunable optical spectrometer of claim 2, wherein: The axial limiting assembly at least includes a jackscrew hole (62) formed on both sides of the second optical element (6), a jackscrew (63) matched with the jackscrew hole (62) is arranged in the jackscrew hole (62), the jackscrew (63) penetrates the jackscrew hole (62) and the end side of the jackscrew (63) abuts against the rotating shaft (61).

4. The tunable optical spectrometer of claim 2, wherein: The radial limiting assembly at least includes a positioning hole (64) formed on the second optical element (6), a locking bolt (65) is arranged in the positioning hole (64), the other end of the locking bolt (65) is screwed on the shell (1), a spring (66) is sleeved on the locking bolt (65), one end of the spring (66) abuts against the second optical element (6) and the other end of the spring (66) abuts against the shell (1).

5. The tunable optical spectrometer of claim 4, wherein: The positioning hole (64) is formed on one side of the second optical element (6) and is not on the central axis of the rotating shaft (61).

6. The tunable optical spectrometer of claim 4, wherein: Limiting holes (67) are further arranged on both sides of the second optical element (6), limiting bolts (68) can be arranged in the limiting holes (67), and the other end of the limiting bolt (68) can be locked on the shell (1).

7. The adjustable spectrometer of claim 1, wherein: The arrangement of the light source, the first optical element (4), the grating (5), the second optical element (6) and the imaging sensor (3) is Z-shaped.

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