Triangular prism position adjusting device for measuring vertex angle of triangular prism by spectrometer

Abstract

The utility model discloses a prism position adjusting device for measuring the vertex angle of a prism by a spectrometer, which relates to the technical field of optical measurement and comprises a base, a first adjusting unit and a second adjusting unit are arranged on the base, a height adjusting unit is arranged on the second adjusting unit and comprises a guide seat, and a driving block is slidably arranged in the guide seat. A first binding face is arranged on one side of the driving block, a lifting seat is arranged on one side of the driving block, a second binding face is arranged on the side, corresponding to the first binding face, of the lifting seat, and a transparent supporting table is arranged on the lifting seat; the first binding surface and the second binding surface are symmetrical to each other and are obliquely arranged; a driving hole is formed in the driving block in a penetrating manner, threads are tapped in the driving hole, and a driving screw rod is matched with the threads in the driving hole and penetrates out of the guide seat; guide holes are formed in the two sides of the guide base, guide rods are arranged in the guide holes, one end of each guide rod is connected to the lifting base, and accurate adjustment of the height of the prism is achieved through the height adjusting unit.

Description

Technical Field

[0001] The utility model relates to the technical field of optical measurement, in particular to a prism position adjusting device for measuring the apex angle of a triangular prism by a spectrometer. Background Art

[0002] Currently, the measurement of an optical prism usually relies on the principle of a spectrometer. The light emitted by a light source forms a parallel light beam through a slit and a focusing lens, enters the objective lens of a telescope and forms an image on the focal plane of the telescope after being reflected or refracted by each surface of the prism, is observed through an eyepiece, and the deflection angle of the light is measured in combination with an angle scale, and finally the apex angle of the prism is calculated.

[0003] When measuring the apex angle of a triangular prism, the position of the triangular prism needs to be adjusted. However, most of the existing triangular prism position adjusting devices only have adjustments in two horizontal positions, that is, they can only be adjusted in the front-back, left-right directions and do not have adjustments in the up-down direction. Therefore, when adjusting up and down, the experimenter can only add a cushion block under the triangular prism temporarily. However, there is a problem with this method, that is, the thickness of the cushion block is fixed and cannot meet the various heights required for measurement, which affects the measurement accuracy. In addition, this method is also very passive and inconvenient.

[0004] Therefore, there is an urgent need for a triangular prism position adjusting device for measuring the apex angle of a triangular prism by a spectrometer, which can accurately adjust the height of the triangular prism to facilitate measurement and improve measurement accuracy. Summary of the Utility Model

[0005] In view of the above technical problems, the utility model provides a triangular prism position adjusting device for measuring the apex angle of a triangular prism by a spectrometer, which is used to solve the problems that the existing triangular prism position adjusting device cannot accurately adjust the height, resulting in inaccurate measurement and inconvenient operation.

[0006] The above technical object of the utility model is achieved through the following technical solutions:

[0007] A triangular prism position adjusting device for measuring the apex angle of a triangular prism by a spectrometer includes a base. The base is provided with a first adjusting unit and a second adjusting unit for adjusting the horizontal position of the triangular prism. The second adjusting unit is provided with a height adjusting unit. The height adjusting unit includes a guiding seat. A driving block is slidably arranged in the guiding seat. One side of the driving block is provided with a first fitting surface. A lifting seat is arranged on one side of the driving block. A second fitting surface is arranged on the side of the lifting seat corresponding to the first fitting surface. A transparent support platform is arranged on the lifting seat.

[0008] The first fitting surface and the second fitting surface are symmetric and inclined.

[0009] A driving hole is formed through the driving block, and threads are tapped in the driving hole. A driving screw is in threaded fit with the driving hole, and the driving screw extends to the outside of the guiding seat.

[0010] Guiding holes are formed on both sides of the guiding seat, and guiding rods are arranged in the guiding holes. One end of each guiding rod is connected to the lifting seat.

[0011] Further, a triangular bayonet is formed in the center of the transparent support platform, and the triangular bayonet can accommodate a triangular prism.

[0012] Further, the joint of the driving screw and the guiding seat is a smooth shaft.

[0013] Further, the first adjusting unit and the second adjusting unit are perpendicular to each other.

[0014] Further, the first adjusting unit includes a first chassis. First rotating seats are fixedly arranged at both ends of the first chassis. A first screw is arranged between the first rotating seats. A first slider is in fit with the first screw, and the second adjusting unit is connected to the first slider.

[0015] Further, the second adjusting unit includes a second chassis. Second rotating seats are fixedly arranged at both ends of the second chassis. A second screw is arranged between the second rotating seats. A second slider is in fit with the second screw, and the guiding seat is connected to the second slider.

[0016] Further, the base is of a Z-shaped structure.

[0017] Further, a semi-closed guiding opening is formed in the guiding seat, and the driving block and the lifting seat are placed in the guiding opening.

[0018] To sum up, the beneficial technical effects of the present utility model are as follows:

[0019] (1) The first adjusting unit and the second adjusting unit can be used to adjust the triangular prism in the front-back, left-right directions within the same plane. At the same time, the driving screw drives the driving block to drive the lifting seat to move up and down along the guiding hole through the first joint surface, thereby realizing the height adjustment of the triangular prism on the support platform. In addition, since the adjustment is carried out through the driving screw, the height of the triangular prism can be accurately adjusted at any height, which not only improves the accurate measurement of the apex angle of the triangular prism, but also facilitates the adjustment and replaces the adjustment with a spacer block.

[0020] (2) The use of the transparent support platform improves the light transmittance during measurement, and at the same time, the triangular bayonet can limit the triangular prism to prevent any movement of the triangular prism.

[0021] (3) The base with a Z-shaped structure not only supports the first adjustment unit, the second adjustment unit and the height adjustment unit, but also can save materials and reduce weight to the greatest extent. Description of the Drawings

[0022] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0023] Figure 2 is Figure 1 a schematic diagram of the structure from another angle;

[0024] Figure 3 is a schematic diagram of the structure of the height adjustment unit;

[0025] Figure 4 is a schematic diagram of the structure of the lifting seat;

[0026] Figure 5 is a schematic diagram of the structure of the driving block;

[0027] Figure 6 is a schematic diagram of the structure of the guiding seat.

[0028] Reference Numerals: 1, base; 2, first chassis; 3, first rotating seat; 4, first screw; 5, first slider; 6, second chassis; 7, second rotating seat; 8, second screw; 9, second slider; 10, height adjustment unit; 11, guiding seat; 12, guiding opening; 13, driving screw; 14, driving block; 15, driving hole; 16, first fitting surface; 17, lifting seat; 18, second fitting surface; 19, transparent support platform; 20, guiding hole; 21, guiding rod; 22, triangular bayonet; 23, triangular prism. Detailed Embodiments

[0029] The present utility model will be clearly and completely described below in conjunction with the embodiments.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0031] In the description of the embodiments, unless otherwise clearly specified and limited, the terms "set", "connected", etc. shall 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 directly connected or connected through an intermediate medium, and it can also be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] See the appendix Figures 1-6 As shown, it is a prism position adjustment device for a spectrometer to measure the apex angle of a prism, including a base 1 with a Z-shaped structure. A first adjustment unit is provided on the base 1. A second adjustment unit is vertically provided on the first adjustment unit. A height adjustment unit 10 is provided on the second adjustment unit. The first adjustment unit includes a first chassis 2. Two first rotating seats 3 are fixedly provided at both ends of the first chassis 2. A first screw rod 4 is provided between the two first rotating seats 3. A first slider 5 is in threaded cooperation with the first screw rod 4. The second adjustment unit is installed on the first slider 5 through bolts. The first screw rod 4 drives the first slider 5 to realize the adjustment of the second adjustment unit and the height adjustment unit 10 in the front-back direction;

[0033] The second adjustment unit includes a second chassis 6. The second chassis 6 is connected to the first slider 5. Two second rotating seats 7 are fixedly provided at both ends of the second chassis 6. A second screw rod 8 is provided between the two second rotating seats 7. A second slider 9 is in threaded cooperation with the second screw rod 8. The second slider 9 is connected to the height adjustment unit 10. The second screw rod 8 drives the second slider 9 to realize the adjustment of the height adjustment unit 10 in the left-right direction. Thus, it can be seen that the adjustment of the prism 23 in the front-back and left-right directions is realized through the first adjustment unit and the second adjustment unit;

[0034] As a prism position adjustment device for a spectrometer to measure the apex angle of a prism, the height adjustment unit 10 includes a guide seat 11. A semi-closed guide opening 12 is provided on the guide seat 11. A driving block 14 is provided in the guide opening 12. A first fitting surface 16 is inclined on one side of the driving block 14. A driving hole 15 is drilled through the driving block 14 in the thickness direction. Threads are tapped in the driving hole 15. A driving screw rod 13 is fitted in the driving hole 15. One end of the driving screw rod 13 extends outside the guide seat 11, and the joint of the driving screw rod 13 and the guide seat 11 is a smooth shaft. In this way, the driving block 14 can be driven to slide back and forth along the guide opening 12 by rotating the driving screw rod 13. A lifting seat 17 is provided on one side of the guide opening 12 close to the first fitting surface 16. A transparent support platform 19 is provided on the lifting seat 17. A triangular bayonet 22 is provided in the center of the transparent support platform 19. The triangular bayonet 22 is used to place the prism 23. A second fitting surface 18 is provided on the lifting seat 17 corresponding to the position of the first fitting surface 16. The first fitting surface 16 and the second fitting surface 18 are mutually fitted. During use, the driving screw rod 13 drives the driving block 14 to slide back and forth, and at the same time the lifting seat 17 slides and lifts along the first fitting surface 16 to realize the height adjustment of the prism 23. At the same time, since the height of the lifting seat 17 is adjusted through the threads on the driving screw rod 13, it is more accurate than the method of adding pads and can realize the adjustment of any height;

[0035] Further, in order to improve the stability of the movement of the lifting seat 17, guide holes 20 are provided at both ends of the guide seat 11, a guide rod 21 is arranged in the guide hole 20, and one end of the guide rod 21 is connected to the lifting seat 17.

[0036] During use, the triangular prism 23 is placed in the triangular bayonet 22 of the transparent support table 19, and the front and back adjustment of the triangular prism 23 is realized through the first screw rod 4 and the first slider 5. Then, the left and right adjustment of the triangular prism 23 is realized through the second screw rod 8 and the second slider 9. When adjusting the height of the triangular prism 23, the driving screw rod 13 is rotated forward and backward to drive the driving block 14 to slide back and forth along the guide port 12. At this time, the lifting seat 17 slides along the first joint surface 16 by using the second joint surface 18. During the sliding, the driving block 14 exerts an upward thrust on the lifting seat 17 to enable the lifting seat 17 to move up and down.

[0037] The above is only the preferred specific implementation mode of the present invention, and does not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A prism position adjustment device for measuring the prism vertex angle by a spectrometer, comprising a base (1), wherein the base (1) is provided with a first adjustment unit and a second adjustment unit for adjusting the lateral position of the prism (23), characterized in that: The second adjustment unit is provided with a height adjustment unit (10), the height adjustment unit (10) comprising a guide seat (11), a driving block (14) being slidably provided in the guide seat (11), a first fitting surface (16) being provided on one side of the driving block (14), a lifting seat (17) being provided on one side of the driving block (14), a second fitting surface (18) being provided on a side of the lifting seat (17) corresponding to the first fitting surface (16), and a transparent support platform (19) being provided on the lifting seat (17); The first fitting surface (16) and the second fitting surface (18) are symmetrical to each other and are arranged obliquely; The driving block (14) is provided with a driving hole (15) extending therethrough, the driving hole (15) is internally threaded, the internal thread of the driving hole (15) is matched with a driving screw (13), and the driving screw (13) extends to the outside of the guide seat (11); Guide holes (20) are provided on both sides of the guide seat (11), a guide rod (21) is provided in the guide hole (20), and one end of the guide rod (21) is connected to the lifting seat (17).

2. The prism position adjustment device for measuring the prism vertex angle by a spectrometer according to claim 1, characterized in that: A triangular bayonet (22) is provided in the centre of the transparent support platform (19), and the triangular bayonet (22) is capable of accommodating a prism (23).

3. The prism position adjustment device for measuring the prism vertex angle by a spectrometer according to claim 1, characterized in that: The joint between the driving screw rod (13) and the guide seat (11) is an optical axis.

4. The prism position adjustment device for measuring the prism vertex angle by a spectrometer according to claim 1, characterized in that: The first adjusting unit and the second adjusting unit are perpendicular to each other.

5. The prism position adjustment device for measuring the prism vertex angle by a spectrometer according to claim 1, characterized in that: The first adjustment unit comprises a first chassis (2), first rotating seats (3) are fixedly provided at both ends of the first chassis (2), a first screw rod (4) is provided between the first rotating seats (3), a first sliding block (5) is provided on the first screw rod (4), and the first sliding block (5) is connected to the second adjustment unit.

6. The prism position adjustment device for measuring the prism vertex angle by a spectrometer according to claim 1, characterized in that: The second adjustment unit comprises a second chassis (6), second rotating seats (7) are fixedly provided at both ends of the second chassis (6), a second screw rod (8) is provided between the second rotating seats (7), a second sliding block (9) is provided on the second screw rod (8), and a guide seat (11) is connected to the second sliding block (9).

7. The prism position adjustment device for measuring the prism vertex angle by a spectrometer according to claim 1, characterized in that: The base (1) is a Z-shaped structure.

8. The prism position adjustment device for measuring the prism vertex angle by a spectrometer according to claim 1, characterized in that: A semi-enclosed guide opening (12) is provided on the guide seat (11), and the driving block (14) and the lifting seat (17) are placed in the guide opening (12).

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