Position adjusting mechanism and glued prism with same

Abstract

The utility model relates to a position adjusting mechanism, which is suitable for adjusting the position of an image acquisition plate on a glued prism and comprises a first adjusting assembly and a second adjusting assembly which are arranged on the glued prism, the third adjusting assembly is installed at the end, away from the first adjusting assembly, of the first adjusting assembly and connected with an image acquisition board to be adjusted, and the fourth adjusting assembly is installed at the end, away from the second adjusting assembly, of the second adjusting assembly and connected with the image acquisition board to be adjusted. The first adjusting assembly and the second adjusting assembly adjust the displacement of the image acquisition plate in the length direction of the image acquisition plate, and the third adjusting assembly and the fourth adjusting assembly adjust the distance between the image acquisition plate and the cemented prism. According to the utility model, the position adjusting mechanism is arranged on the glued prism, so that the position of the image acquisition board on the glued prism can be conveniently adjusted, and the glued prism can be prevented from easily deviating from the image acquisition board after being packaged to influence the integrity and definition of imaging.

Description

Technical Field

[0001] The utility model relates to the technical field of optical prisms, in particular to a position adjusting mechanism and a cemented prism with the position adjusting mechanism. Background Technique

[0002] The cemented prism is a device often used in the polarization optical path, mainly playing the role of polarization beam splitting, and is widely used in various optical systems, such as consumer industries like laser systems and optical measurement systems. At present, with the development of domestic medical devices, the cemented prism is gradually applied in the medical auxiliary surgery system. Due to the limitations of production processes and technical conditions of traditional cemented prisms, especially in the part of the installation method of the image acquisition board. Currently, the assembly method of the image acquisition board and the cemented prism mainly uses an installation tool independent of the cemented prism to assemble the image acquisition board and the cemented prism, and adjusts the installation position of the image acquisition board on the cemented prism through the installation tool to ensure that the center of the image sensor on the image acquisition board coincides with the center of the filter on the cemented prism, so that the light emitted from the filter is perpendicular to the plane for collecting light on the image sensor. Finally, the light emitted from the filter on the cemented prism can be completely projected onto the image sensor to ensure the integrity and clarity of image imaging, and then the image acquisition board and the cemented prism are bonded and fixed by gluing. Since the glue will have a certain expansion or contraction during the curing process, and after the installation tool for assembling the image acquisition board independent of the cemented prism is removed, due to the influence of the expansion or contraction of the glue, the position of the image processing board fixed by the installation tool on the cemented prism will deviate, thus affecting the overall effect of image imaging. Especially when used in medical endoscope products for surgery, it will seriously affect the doctor's accurate observation of the patient's intra-cavity tissues, thus affecting the doctor's accurate judgment of the lesion site and easily causing medical accidents. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] The utility model provides a position adjusting mechanism and a cemented prism with the position adjusting mechanism. By arranging the position adjusting mechanism on the cemented prism, it can not only facilitate the adjustment of the position of the image acquisition board on the cemented prism, but also prevent the deviation between the cemented prism and the image acquisition board after encapsulation, which affects the integrity and clarity of imaging.

[0005] (2) Technical Solutions

[0006] In a first aspect, an embodiment of the present utility model provides a position adjustment mechanism, which is applicable to adjusting the position of an image acquisition board on a glued prism, and includes a first adjustment component mounted on the glued prism; a second adjustment component mounted on the glued prism; a third adjustment component mounted on the first adjustment component and having one end away from the first adjustment component connected to the image acquisition board to be adjusted; and a fourth adjustment component mounted on the second adjustment component and having one end away from the second adjustment component connected to the image acquisition board to be adjusted. Wherein, the first adjustment component and the second adjustment component adjust the displacement of the image acquisition board along its length direction, and the third adjustment component and the fourth adjustment component adjust the distance between the image acquisition board and the glued prism.

[0007] Further, the first adjustment component and the second adjustment component are symmetrically arranged on the glued prism, and the third adjustment component and the fourth adjustment component are symmetrically arranged on the glued prism.

[0008] Further, the first adjustment component includes a first fixed seat glued to the glued prism; a first sliding block slidably disposed on the first fixed seat and provided with the third adjustment component; and a first adjustment screw threadedly connected to the first fixed seat. Wherein, the first adjustment screw can drive the first sliding block to move along the length direction of the image acquisition board under the rotation of an external force.

[0009] Further, the second adjustment component includes a second fixed seat glued to the glued prism; a second sliding block slidably disposed on the second fixed seat and provided with the fourth adjustment component; and a second adjustment screw threadedly connected to the second fixed seat. Wherein, the second adjustment screw can drive the second sliding block to move along the length direction of the image acquisition board under the rotation of an external force.

[0010] Further, the third adjustment component includes a first positioning post mounted on the first sliding block and having one end away from the first sliding block passing through the image acquisition board; a first spring sleeved on the first positioning post and located between the first sliding block and the image acquisition board; and a first adjustment nut threadedly connected to the first positioning post and located on the side of the image acquisition board away from the first spring. The first adjustment nut is used for adjusting the compression stroke of the first spring.

[0011] Further, the fourth adjustment component includes a second positioning post installed on the second sliding block and having one end away from the second sliding block passing through the image acquisition board; a second spring sleeved on the second positioning post and located between the second fixed seat and the image acquisition board; and a third adjustment nut threadedly connected to the second positioning post and located on one side of the image acquisition board away from the second spring, where the third adjustment nut is used to adjust the compression stroke of the second spring.

[0012] Further, the first adjustment component further includes a first elastic thimble, and the first elastic thimble is installed on the first fixed seat and at one end away from the first adjustment screw.

[0013] Further, the second adjustment component further includes a second elastic thimble, and the second elastic thimble is installed on the second fixed seat and at one end away from the second adjustment screw.

[0014] In a second aspect, an embodiment of the present invention further provides a glued prism, including a first prism and a second prism. The first gluing surface of the first prism is tightly glued to the second gluing surface of the second prism, and the position adjustment mechanism described in the first aspect is provided on both the first light-emitting surface of the first prism and the second light-emitting surface of the second prism.

[0015] Further, a first filter is provided on the first light-emitting surface, a second filter is provided on the second light-emitting surface, the first adjustment component and the second adjustment component are symmetrically provided on both sides of the first filter, and the first adjustment component and the second adjustment component are symmetrically provided on both sides of the second filter.

[0016] (3) Beneficial effects

[0017] In summary, by installing the position adjustment mechanism on the glued prism, it is possible to avoid the problem that the assembly positions of the image acquisition board and the glued prism are prone to deviation after encapsulation. Moreover, by using the first adjustment component and the second adjustment component, the displacement of the image acquisition board along its length direction can be adjusted, that is, the projected area of the image sensor on the image acquisition board on the assembly surface of the glued prism can be adjusted, so as to ensure the integrity of image imaging. Then, by using the third adjustment component and the fourth adjustment component to respectively adjust the distance between the image sensor on the image acquisition board and the mating surface on the glued prism, that is, the focal length from the image sensor to the mating surface on the glued prism, the clarity of image imaging can be ensured. Description of the drawings

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments of the present invention. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of a glued prism with a position adjustment mechanism of the present invention.

[0020] Figure 2 It is another schematic structural diagram of a glued prism with a position adjustment mechanism of the present invention.

[0021] Figure 3 It is a schematic structural diagram of the first adjustment component and the second adjustment component of the present invention.

[0022] Figure 4 It is a schematic structural diagram of the optical path transmission of the glued prism of the present invention.

[0023] Figure 5 It is a schematic structural diagram of the first prism of the present invention.

[0024] Figure 6 It is a schematic structural diagram of the second prism of the present invention.

[0025] In the figure:

[0026] 1 - First fixed seat; 10 - First prism; 11 - Second fixed seat; 12 - Second sliding block; 13 - Second adjustment screw; 14 - Second elastic thimble; 100 - Glued prism; 101 - First glued surface; 102 - First light exit surface; 110 - First filter; 111 - First opening; 112 - Second opening;

[0027] 2 - First sliding block; 20 - Second prism; 200 - Image acquisition board; 201 - Second glued surface; 202 - Second light exit surface; 203 - Light incident surface; 210 - Second filter; 220 - PCB board; 230 - Image sensor;

[0028] 3 - First adjustment screw;

[0029] 4 - First elastic thimble;

[0030] 5 - First positioning post; 51 - Second positioning post;

[0031] 6 - First spring; 61 - Second spring;

[0032] 7 - First adjustment nut; 71 - Second adjustment nut;

[0033] 8 - Through - hole. Specific embodiments

[0034] The following further describes in detail the embodiments of the present utility model in conjunction with the accompanying drawings and embodiments. The following detailed description of the embodiments and the accompanying drawings are used to exemplarily illustrate the principle of the present utility model, but cannot be used to limit the scope of the present utility model, that is, the present utility model is not limited to the described embodiments, and covers any modifications, substitutions, and improvements of parts, components, and connection methods without departing from the spirit of the present utility model.

[0035] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will refer to the accompanying drawings and combine the embodiments to detail the present application.

[0036] In the first aspect, as Figure 1 and Figure 2 shown, the present utility model relates to a position - adjusting mechanism applicable to adjusting the position of an image - acquisition board 200 on a glued prism 100. The position - adjusting mechanism includes a first adjusting component and a second adjusting component installed on the glued prism 100, a third adjusting component installed on the first adjusting component, and a fourth adjusting component installed on the second adjusting component. One end of the third adjusting component far from the first adjusting component is connected to the image - acquisition board 200 to be adjusted, and one end of the fourth adjusting component far from the second adjusting component is connected to the image - acquisition board 200 to be adjusted. Among them, the first adjusting component and the second adjusting component adjust the displacement of the image - acquisition board 200 along its length direction, and the third adjusting component and the fourth adjusting component adjust the distance between the image - acquisition board 200 and the glued prism 100. Specifically, as Figure 1 and Figure 2 shown, by installing the position - adjusting mechanism on the glued prism 100, and using the first adjusting component and the second adjusting component to adjust the displacement of the image - acquisition board 100 along its length direction L1, that is, to adjust the projected area of the image sensor 230 on the image - acquisition board 200 on the assembly surface of the glued prism 100, ensuring that the image sensor 230 can have a complete projected area on the glued prism 100, thereby ensuring the integrity of image imaging. Then, using the third adjusting component and the fourth adjusting component to respectively adjust the distance between the image sensor 230 on the image - acquisition board 200 and the mating surface on the glued prism 100, that is, the parallel distance from the image sensor 230 to the assembly surface of the glued prism 100, which is also the focal length from the image sensor 230 to the mating surface of the glued prism 100, thereby ensuring the clarity of image imaging. The assembly surface refers to the surface on the glued prism 100 for installing the first adjusting component and the second adjusting component, that is, the first light - emitting surface 102 of the first prism 10 and the second light - emitting surface 202 of the second prism (as Figures 4 to 6As shown in the figure, after the position adjustment mechanism adjusts the image acquisition board to the optimal position on the glued prism, that is, to ensure that the integrity and clarity of the image imaging meet the factory requirements, it is necessary to perform overall sealing on the position where the position adjustment mechanism is combined with the glued prism. Although the glue will expand or contract during the curing process, the position of the image acquisition board on the glued prism has been fixed by the position adjustment mechanism, and the position adjustment mechanism is arranged on the glued prism. Therefore, it can avoid the problem that the glued prism is likely to deviate from the image acquisition board after encapsulation, thus ensuring the integrity and clarity of the image imaging.

[0037] By arranging the position adjustment mechanism on the glued prism, the present utility model can not only conveniently adjust the position of the image acquisition board on the glued prism, but also prevent the glued prism from deviating from the image acquisition board after encapsulation, which affects the integrity and clarity of imaging.

[0038] As a preferred embodiment, as Figure 1 and Figure 2 shown, the first adjustment component and the second adjustment component are symmetrically arranged on the glued prism 100, and the third adjustment component and the fourth adjustment component are symmetrically arranged on the glued prism 100. Specifically, as Figure 1 and Figure 2 shown, along the length direction L1 of the image acquisition board 200, they are symmetrically arranged with respect to the center line of the image acquisition board 200, that is, the first adjustment component and the second adjustment component are respectively arranged at both ends of the image sensor 230 on the image acquisition board 200 along the width direction W1 of the image acquisition board 200. Similarly, since the third adjustment component and the fourth adjustment component are respectively installed on the first adjustment component and the second adjustment component, that is, the third adjustment component and the fourth adjustment component are also respectively arranged at both ends of the image sensor 230 on the image acquisition board 200.

[0039] As another preferred embodiment, the first adjustment component includes a first fixed seat 1 glued to the glued prism 100, a first sliding block 2 slidably arranged on the first fixed seat 1 and provided with a third adjustment component, and a first adjustment screw 3 threadedly connected to the first fixed seat 1. The second adjustment component includes a second fixed seat 11 glued to the glued prism 100, a second sliding block 12 slidably arranged on the second fixed seat 11 and provided with a fourth adjustment component, and a second adjustment screw 13 threadedly connected to the second fixed seat 11. Among them, the first adjustment screw 3 can drive the first sliding block 2 to move along the length direction L1 of the image acquisition board 200 under the rotation of an external force, and the second adjustment screw 13 can also drive the second sliding block 12 to move along the length direction of the image acquisition board 200 under the rotation of an external force. Specifically, as Figures 1 to 3As shown, the first fixing base 1 and the second fixing base 11 are both fixedly installed on the assembly surface of the glued prism 100 by means of glue bonding. The first fixing base 1 and the second fixing base 11 are respectively located at both ends of the assembly surface, that is, the first fixing base 1 and the second fixing base 11 are separated from each other along the width direction W1 of the image acquisition board 200. Both the first fixing base 1 and the second fixing base 11 are provided with slide rails or chutes. The first sliding block 2 and the second sliding block 12 are respectively installed on the corresponding slide rails or chutes. The two slide rails are arranged along the length direction L1 of the image acquisition board 200, that is, the length direction L1 of the PCB board 220 on the image acquisition board. The chute or slide rail is set as a T-shaped structure to ensure that the first sliding block 2 and the second sliding block 12 can drive the corresponding third adjustment assembly and fourth adjustment assembly to move along the length direction L1, so as to adjust the projected area of the image sensor 230 on the image acquisition board 200 on the assembly surface of the glued prism 100 and ensure the integrity of image imaging. One end of the first adjustment screw 3 passes through the first fixing base 1, and the threaded section on the first adjustment screw 3 cooperates with the threaded section provided on the first fixing base 1 to convert the rotational movement of the first adjustment screw 3 into the axial movement of the first adjustment screw 3. Similarly, one end of the second adjustment screw 13 passes through the second fixing base 11, and the threaded section on the second adjustment screw 13 cooperates with the threaded section provided on the second fixing base 11 to convert the rotational movement of the second adjustment screw 13 into the axial movement of the second adjustment screw 13. There are various connection methods for the assembly relationship between the first sliding block 2 and the first adjustment screw 3, so that the first adjustment screw 3 can drive the first sliding block 2 to move under the external force rotation. Specifically, the first sliding block 2 can be set in a free state within the first fixing base 1, that is, when the first adjustment screw 3 does not abut against the first sliding block 2, the first sliding block 2 is stationary. When one end of the first adjustment screw 3 within the first fixing base 11 abuts against the first sliding block 2, the first sliding block 2 can drive the third adjustment assembly to move under the external force drive. Of course, the first sliding block 2 and the first adjustment screw 3 can also be fixedly connected or assembled in the form of a screw and a nut to achieve that the first adjustment screw 3 can drive the first sliding block 2 to move under the external force rotation. Similarly, the assembly method of the second sliding block 12 and the second adjustment screw 13 can also be one of the above methods, which will not be elaborated here. Exemplarily, the assembly method of the first sliding block 2 and the first adjustment screw 3 is the same as that of the second sliding block 12 and the second adjustment screw 13. By synchronously rotating the first adjustment screw 3 and the second adjustment screw 13 forward or backward, the displacement of the image acquisition board 200 along its length direction L1 can be accurately adjusted, which is beneficial to improving the accuracy of adjusting the projected area of the image sensor 230 on the image acquisition board 200 on the assembly surface of the glued prism 100, thereby further ensuring the integrity of image imaging.

[0040] As other alternative embodiments.

[0041] Preferably, the third adjusting assembly includes a first positioning post 5 mounted on the first sliding block 2. One end of the first positioning post 5 far from the first sliding block 2 passes through the image acquisition board 200, a first spring 6 sleeved on the first positioning post 5 and located between the first sliding block 2 and the image acquisition board 200, and a first adjusting nut 7 threadedly connected to the first positioning post 5 and located on the side of the image acquisition board 200 far from the first spring 6. The first adjusting nut 7 is used to adjust the compression stroke of the first spring 6. The fourth adjusting assembly includes a second positioning post 51 mounted on the second sliding block 12. One end of the second positioning post 51 far from the second sliding block 12 passes through the image acquisition board 200, a second spring 61 sleeved on the second positioning post 51 and located between the second sliding block 12 and the image acquisition board 200, and a second adjusting nut 71 threadedly connected to the second positioning post 51 and located on the side of the image acquisition board 200 far from the second spring 61. The second adjusting nut 71 is used to adjust the compression stroke of the second spring 61. Specifically, as Figure 2 and Figure 3As shown, there are two first positioning posts 5, which are respectively arranged at both ends of the first sliding block 2, that is, the two first positioning posts 5 are arranged away from each other, and one end of each of the two first positioning posts 5 away from the first sliding block 2 passes through the PCB board 220 of the image acquisition board 200. Similarly, there are also two second positioning posts 51, which are respectively arranged at both ends of the second sliding block 12, that is, the two second positioning posts 51 are arranged away from each other, and one end of each of the two second positioning posts 51 away from the second sliding block 12 passes through the PCB board 220 of the image acquisition board 200. Therefore, the PCB board 220 of the image acquisition board 200 is provided with four through holes 8 respectively for the two first positioning posts 5 and the two second positioning posts 51 to pass through. There are also two first springs 6, and each first spring 6 is sleeved on the corresponding first positioning post 5 and is in a pre-compressed state between the first sliding block 2 and the PCB board 220 of the image acquisition board 200 under the gravity of the PCB board 220 of the image acquisition board 200. Similarly, there are also two second springs 61, and each second spring 61 is sleeved on the corresponding second positioning post 51 and is in a pre-compressed state between the second sliding block 12 and the PCB board 220 of the image acquisition board 200 under the gravity of the PCB board 220 of the image acquisition board 200. There are also two first adjusting nuts 7 and two second adjusting nuts 71, which are respectively used for threaded connection with the corresponding first positioning post 5 and second positioning post 51. Therefore, the first positioning post 5 and the second positioning post 51 are both provided with threaded areas for threaded connection with the corresponding first adjusting nut 7 and second adjusting nut 71. The first adjusting nut 7 and the first spring 6, and the second adjusting nut 71 and the corresponding second spring 61 are respectively arranged on both sides of the image acquisition board 200. By screwing the first adjusting nut 7 and / or the second adjusting nut 71, the movement stroke on the corresponding first positioning post 5 and / or second positioning post 51 can adjust the compression amount of the first spring 6 and / or the second spring 61, so as to adjust the distance of the image sensor 230 on the image acquisition board 200 along the length direction of the first positioning post 5 or the second positioning post 51. Finally, the distance between the image sensor 230 and the mating surface on the bonding prism 100 can be adjusted, which can ensure the clarity of the image. By setting two independent third adjusting components and fourth adjusting components to respectively rotate the first adjusting nut 7 and the second adjusting nut 71 forward or backward, the distance of the image acquisition board 200 along the length direction of the first positioning post 5 or the second positioning post 51 can be accurately adjusted, which is beneficial to improving the parallel distance of the image sensor 230 on the image acquisition board 200 on the assembly surface of the bonding prism 100, that is, the focal length from the image sensor 230 to the mating surface on the bonding prism 100, so as to further ensure the clarity of the image.

[0042] Preferably, as Figure 3As shown, the first adjustment component further includes a first elastic ejector pin 4, which is installed on the first fixed seat 1 and at the end far from the first adjustment screw 3. Specifically, the first fixed seat 1 is provided with a first opening 111, and the first elastic ejector pin 4 is installed on the first opening 111. The first elastic ejector pin 4 is fixed to the first fixed seat 1 by detachable connection or welding. Preferably, the first elastic ejector pin 4 is installed on the first fixed seat 1 by gluing or interference fit. The first elastic ejector pin 4 is used to provide a buffering force to the first sliding block 2. When the first sliding block 2 is in a free state within the first fixed seat 1, the first elastic ejector pin 4 is in a pre-tightened compressed state and clamps the first sliding block 2 together with the first adjustment screw 3, enabling the first sliding block 2 to always remain in contact with the first adjustment screw 3 under the restoring force of the first elastic ejector pin 4 when the first adjustment screw 3 is screwed out in the reverse direction, ensuring the stability of the position adjustment of the image acquisition board 200 along its length direction L1; when the first sliding block 2 is fixedly connected to the first fixed seat 1, the first elastic ejector pin 4 can prevent the first sliding block 2 from colliding rigidly with the other end of the first fixed seat 1 far from the first adjustment screw 3 under the drive of the first adjustment screw 3 and being damaged.

[0043] Preferably, as Figure 3 shown, the second adjustment component further includes a second elastic ejector pin 14, which is installed on the second fixed seat 11 and at the end far from the second adjustment screw 13. Specifically, the second fixed seat 11 is provided with a second opening 112, and the second elastic ejector pin 14 is installed on the second opening 112. The second elastic ejector pin 14 is fixed to the second fixed seat 11 by detachable connection or welding. Preferably, the second elastic ejector pin 14 is installed on the second fixed seat 11 by gluing or interference fit. The second elastic ejector pin 14 is used to provide a buffering force to the second sliding block 12. The function of the second elastic ejector pin 14 is the same as that of the first elastic ejector pin 4, so it will not be elaborated here.

[0044] Second, as Figure 1 shown, the present invention also relates to a glued prism, including a first prism 10 and a second prism 20. The first gluing surface 101 of the first prism 10 is closely glued to the second gluing surface 201 of the second prism 20. The first light-emitting surface 102 of the first prism 10 and the second light-emitting surface 202 of the second prism 20 are both provided with the position adjustment mechanism described in the first aspect.

[0045] Preferably, as Figure 1 and Figure 4As shown in the figure, a first filter 110 is provided on the first light exit surface 102, and a second filter 210 is provided on the second light exit surface 202. A first adjustment component and a second adjustment component are symmetrically provided on both sides of the first filter 110, and a first adjustment component and a second adjustment component are also symmetrically provided on both sides of the second filter 210. Specifically, an incident light surface 203 is further provided on the second prism 20 for receiving incident light F. The incident light F is reflected once by the second bonding surface 201 of the second prism 20 and reflected twice by the incident light surface 203 (a reflecting mirror (not shown in the figure) is provided on the incident light surface 203), then exits from the second light exit surface 202, is filtered by the second filter 210, and forms an image on the image acquisition board 200. The incident light F passes through the second bonding surface 201 of the second prism 20 for the first time and passes through the first bonding surface 101 of the first prism 10 for the second time, then exits from the first light exit surface 102, is filtered by the first filter 110, and forms an image on the image acquisition board 200. The first fixing seat 1 on the first adjustment component and the second fixing seat 11 on the second adjustment component are respectively provided on both sides of the first filter 110 and / or the second filter 210, and are both tightly attached to and bonded with the first filter 110 or the second filter 210 to prevent light leakage when the first filter 110 or the second filter 210 filters the incident light F, thereby affecting the clarity and contrast of the image formation.

[0046] It should be clear that each embodiment in this specification is described in a progressive manner. For the same or similar parts between each embodiment, reference can be made to each other. The key point of each embodiment is to illustrate the differences from other embodiments. The present utility model is not limited to the specific steps and structures described above and shown in the figures. And, for the sake of brevity, the detailed description of known method technologies is omitted here.

[0047] The above description is only for the embodiments of the present application and does not limit the present application. For those skilled in the art, various changes and modifications can be made to the present application without departing from the scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A position adjusting mechanism, applicable to adjusting the position of an image acquisition board on a glued prism, characterized in that including a first adjustment component, mounted on the glued prism (100); a second adjustment component, mounted on the glued prism (100); a third adjustment component, mounted on the first adjustment component, and the end thereof far away from the first adjustment component is connected to the image acquisition board (200) to be adjusted; a fourth adjustment component, mounted on the second adjustment component, and the end thereof far away from the second adjustment component is connected to the image acquisition board (200) to be adjusted; wherein, the first adjustment component and the second adjustment component adjust the displacement of the image acquisition board (200) along its length direction, and the third adjustment component and the fourth adjustment component adjust the distance between the image acquisition board (200) and the glued prism (100).

2. The position adjusting mechanism according to claim 1, characterized in that The first adjustment component and the second adjustment component are symmetrically arranged on the glued prism (100), and the third adjustment component and the fourth adjustment component are symmetrically arranged on the glued prism (100).

3. The position adjusting mechanism according to claim 1 or 2, characterized in that, The first adjustment component includes a first fixed seat (1), glued to the glued prism (100); a first sliding block (2), slidably arranged on the first fixed seat (1), and the third adjustment component is installed thereon; a first adjustment screw (3), threadedly connected to the first fixed seat (1); wherein, the first adjustment screw (3) can drive the first sliding block (2) to move along the length direction of the image acquisition board (200) under the rotation of external force.

4. The position adjusting mechanism according to claim 1 or 2, characterized in that, The second adjustment component includes a second fixed seat (11), glued to the glued prism (100); a second sliding block (12), slidably arranged on the second fixed seat (11), and the fourth adjustment component is installed thereon; a second adjustment screw (13), threadedly connected to the second fixed seat (11); wherein, the second adjustment screw (13) can drive the second sliding block (12) to move along the length direction of the image acquisition board (200) under the rotation of external force.

5. The position adjusting mechanism according to claim 3, wherein The third adjustment component includes a first positioning column (5), installed on the first sliding block (2), and the end thereof far away from the first sliding block (2) passes through the image acquisition board (200); a first spring (6), sleeved on the first positioning column (5) and located between the first sliding block (2) and the image acquisition board (200); a first adjustment nut (7), threadedly connected to the first positioning column (5) and located on the side of the image acquisition board (200) far away from the first spring (6), for adjusting the compression stroke of the first spring (6).

6. The position adjusting mechanism according to claim 4, wherein The fourth adjustment component includes a second positioning column (51), installed on the second sliding block (12), and the end thereof far away from the second sliding block (12) passes through the image acquisition board (200); a second spring (61), sleeved on the second positioning column (51) and located between the second fixed seat (11) and the image acquisition board (200); The third adjusting nut (71) is threadedly connected to the second positioning post (51) and is located on the side of the image acquisition board (200) away from the second spring (61), and is used to adjust the compression stroke of the second spring (61).

7. The position adjusting mechanism according to claim 3, characterized in that, The first adjusting assembly further includes a first elastic ejector pin (4), and the first elastic ejector pin (4) is installed on the first fixing seat (1) and at the end away from the first adjusting screw (3).

8. The position adjusting mechanism according to claim 4, characterized in that The second adjusting assembly further includes a second elastic ejector pin (14), and the second elastic ejector pin (14) is installed on the second fixing seat (11) and at the end away from the second adjusting screw (13).

9. A glued prism, characterized in that, It includes a first prism (10) and a second prism (20). The first bonding surface (101) of the first prism (10) is tightly bonded to the second bonding surface (201) of the second prism (20). The position adjusting mechanism according to any one of claims 1-8 is provided on both the first light emitting surface (102) of the first prism (10) and the second light emitting surface (202) of the second prism (20).

10. The glued prism according to claim 9, characterized in that, A first filter (110) is provided on the first light emitting surface (102), and a second filter (210) is provided on the second light emitting surface (202). The first adjusting assembly and the second adjusting assembly are symmetrically provided on both sides of the first filter (110), and the first adjusting assembly and the second adjusting assembly are symmetrically provided on both sides of the second filter (210).

Images