A correction instrument
By introducing a mounting base, fine-tuning mechanism, and adapter into the calibrator, multi-dimensional adjustment of the collimator is achieved, solving the problems of large size and complex adjustment of the calibrator. It is suitable for the calibration of visible light and thermal imaging sights, improving production efficiency and cost-effectiveness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU OFT OPTICAL TECH CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-07-14
AI Technical Summary
Existing calibration instruments are large and complex to adjust, resulting in low production and inspection efficiency and making it impossible to achieve mass production on assembly lines.
Design a calibration instrument that employs a mounting base, a fine-tuning mechanism, and an adapter. The fine-tuning mechanism enables multi-dimensional adjustment of the collimator through its first and second adjustment components, and the adapter is used to adjust the beam direction, thus simplifying the calibration operation.
The size of the calibrator has been reduced, the cost has been lowered, the adjustment operation has been simplified, and efficient calibration of multi-light fusion equipment has been achieved. It is suitable for calibration of visible light and thermal imaging sights.
Smart Images
Figure CN224501056U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of calibration equipment technology, and more specifically, to a calibration instrument. Background Technology
[0002] As fusion sights gradually gained market acceptance and entered mass production, the bottlenecks in calibration and testing during mass production became apparent.
[0003] Currently, most manufacturers of fusion sights use correction devices based on off-axis reflective collimators. However, off-axis reflective collimators are expensive, bulky, and complex to operate and adjust when producing sights requiring different object distances. Therefore, off-axis reflective collimators cannot be mass-produced on production lines, causing process congestion in production and inspection, hindering mass production on assembly lines, and severely limiting the output of visible light and thermal imaging fusion sights.
[0004] In summary, how to effectively solve the problems of large size and complex adjustment of calibration instruments is a problem that needs to be solved by those skilled in the art. Utility Model Content
[0005] In view of this, the purpose of this utility model is to provide a calibration instrument whose structural design can effectively solve the problems of large size and complex adjustment of the calibration instrument.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A calibrator, comprising:
[0008] Mounting base;
[0009] At least two fine-tuning mechanisms are provided, each comprising a collimator, a first adjustment component, and a second adjustment component. The collimator is movably mounted on the mounting base. The first adjustment component is mounted on the mounting base and is used to adjust the collimator to swing about a first axis. The second adjustment component is mounted on the mounting base and is used to adjust the collimator to swing about a second axis. The first axis and the second axis are perpendicular to each other, and both are different from the axis of the collimator on the adjustable mounting component.
[0010] An adapter, located at one end of at least one of the collimators, is used to change the beam direction of the collimator.
[0011] Optionally, in the above-mentioned calibration instrument, the adapter includes a mirror base and an oblique prism disposed within the mirror base, and the mirror base is provided with a sleeve to be fitted onto one end of the collimator.
[0012] Optionally, in the above-mentioned calibration instrument, the mounting base includes:
[0013] The base is used to mount the device under test.
[0014] A side bracket is provided on the base and extends along the first axis, and at least two of the fine-tuning mechanisms are respectively provided on the side bracket.
[0015] Optionally, in the above-mentioned calibration instrument, at least one of the fine-tuning mechanisms has an adjustable mounting position on the side bracket.
[0016] Optionally, in the above-mentioned calibration instrument, the first adjustment component includes two cooperating first adjustment members, and the two first adjustment members apply forces to the collimator along the second axis and in opposite directions;
[0017] And / or,
[0018] The second adjustment assembly includes two cooperating second adjustment members, the two second adjustment members applying forces to the collimator along the first axis and in opposite directions.
[0019] Optionally, the above-mentioned calibration instrument further includes an adjustable mounting assembly, which includes a support body and a fixing component. The support body is movably disposed on the mounting base, and the fixing component is disposed on the support body and used to fix the collimator. The first adjustment component and the second adjustment component act on the support body respectively.
[0020] Optionally, in the above-mentioned calibration instrument, a pad is provided between the mounting base and the support body, and the end of the pad facing the support body is arc-shaped and cooperates with the middle of the support body.
[0021] Optionally, in the above-mentioned calibration instrument, the first adjustment component includes a first push bolt that is threadedly engaged with the mounting seat and a first pull bolt that is threadedly engaged with the support body. The tail of the first push bolt abuts against the end face of the support body facing the mounting seat, and the bolt head of the first pull bolt is stuck against the end face of the mounting seat away from the support body.
[0022] Optionally, in the above-mentioned calibration instrument, the mounting base is provided with mounting ears on opposite sides along the first axial direction, and the second adjustment component includes second push bolts respectively provided on the mounting ears on both sides, with the tail ends of the second push bolts on both sides abutting against opposite sides of the support body.
[0023] Optionally, in the above-mentioned calibration instrument, the fixing component includes:
[0024] A lower clamp seat is provided on the supporting body;
[0025] The upper clamp is detachably connected to the lower clamp seat, and the lower clamp seat and the upper clamp are used to hold the parallel light tube tightly.
[0026] Optionally, the above-mentioned calibration instrument also includes a connector disposed on the mounting base, the connector being used to mount the device under test.
[0027] The calibration instrument provided by this utility model includes a mounting base, an adapter, and at least two fine-tuning mechanisms. Each fine-tuning mechanism includes a collimator, a first adjustment component, and a second adjustment component. The first adjustment component is located on the mounting base and is used to adjust the collimator's oscillation around a first axis. The second adjustment component is located on the mounting base and is used to adjust the collimator's oscillation around a second axis. The first and second axes are perpendicular to each other and are both different from the axis of the collimator. The adapter is located at one end of at least one collimator and is used to change the beam direction of the collimator.
[0028] The calibration instrument provided by this invention employs at least two fine-tuning mechanisms. Each mechanism allows for the rotation of a collimator during installation. The collimator can be adjusted to swing around a first axis via a first adjustment component and around a second axis via a second adjustment component. This adjustment ensures that the crosshairs of the collimators are parallel to the two-dimensional axis of the connector used to mount the device under test. The adjusted collimators are then fixed to the mounting base. An adapter displaces the emitted light rays from the corresponding collimators to meet the spacing requirements of at least two collimators, ensuring that the optical axis spacing between the two collimators is the same as the optical axis spacing of the multi-light fusion device on the product. During calibration, the device under test, such as the sight, is mounted on the connector. Power is supplied to each collimator, and the center deviation of the multi-light fusion device under test can be corrected through the collimators mounted on the at least two fine-tuning mechanisms.
[0029] In summary, this calibrator, through the adjustment of the collimator by the first and second adjustment components, combined with the adjustment of the rotation angle during collimator installation and the setting of the adapter, can perform multi-light fusion calibration of the device under test without the need for an off-axis reflective collimator, thus reducing the size and cost, and simplifying the adjustment operation. Attached Figure Description
[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0031] Figure 1This is a schematic diagram illustrating the usage state of the calibration instrument according to a specific embodiment of the present invention;
[0032] Figure 2 for Figure 1 Side view;
[0033] Figure 3 for Figure 1 A schematic diagram of a localized explosion;
[0034] Figure 4 An exploded view of the fine-tuning mechanism and its mounting base in action;
[0035] Figure 5 This is a cross-sectional schematic diagram showing the fit between the fine-tuning mechanism and the mounting base.
[0036] Figure label:
[0037] 10 - Device under test;
[0038] 1-Mounting base; 2-Connector; 3-Fine-adjustment mechanism; 4-Adapter; 5-First bolt; 6-Second bolt; 7-Mounting lug; 8-Camera;
[0039] 11-Base; 12-Side support; 13-Base plate;
[0040] 31-Collider; 32-First adjustment assembly; 33-Second adjustment assembly; 34-Adjustable mounting assembly; 35-Padded block;
[0041] 341-Supporting body; 342-Fixing component;
[0042] 321 - First push bolt; 322 - First pull bolt; 331 - Second push bolt;
[0043] 3421 - Lower clamp seat; 3422 - Upper clamp;
[0044] 41-Mirror base; 411-Sleeve; 42-Rhombic prism;
[0045] 501 - First bolt hole; 601 - Second bolt hole; 602 - Third bolt hole. Detailed Implementation
[0046] This utility model discloses a calibration instrument that reduces its size, lowers its cost, and is easy to operate.
[0047] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0048] The calibration instrument provided in this application is applicable to, but not limited to, the calibration of multi-light fusion sights, including but not limited to visible light (holographic, digital, white light) and thermal imaging. For example, when calibrating visible light and thermal imaging sights, the device under test 10 can be a sight, specifically a visible light and thermal imaging sight. The calibration instrument uses an adjustable collimator 31 mounted on a fine-tuning mechanism 3 that can finely adjust mutually perpendicular first and second axes, with an adapter 4 added to the front end of one of the collimators 31. The fine-tuning mechanism 3 is used to adjust the optical axes of at least two collimators 31 to be parallel. During calibration, the device under test 10 is mounted on the connector 2, and calibration is performed by observing and comparing the crosshairs of the collimators 31. For ease of explanation, the accompanying drawings and the following embodiments illustrate the use of two fine-tuning mechanisms 3 as an example; however, in other embodiments, the fine-tuning mechanism 3 may include three or more, and the collimators may also be multiple.
[0049] In some embodiments, please refer to Figures 1-5 The calibration instrument provided by this utility model includes a mounting base 1, an adapter 4, and two fine-tuning mechanisms 3. Among them, the mounting base 1 is the main support structure of the calibration instrument, and the other components can be installed on the mounting base 1.
[0050] Each fine-tuning mechanism 3 includes a collimator 31, a first adjustment component 32, and a second adjustment component 33. The type of collimator 31 is selected according to the device under test 10. For example, if the device under test 10 is a thermal imaging sight, the collimator 31 can be a thermal imaging collimator. Specifically, a collimator 31 with a larger focal length can be used to provide higher detection accuracy. The first adjustment component 32 is located on the mounting base 1 and is used to adjust the swing of the collimator 31 around a first axis, that is, to adjust the pitch of the collimator 31 relative to the mounting base 1. The second adjustment component 33 is located on the mounting base 1 and is used to adjust the swing of the collimator 31 around a second axis, that is, to adjust the rocking motion of the collimator 31 relative to the mounting base 1. The first axis and the second axis are perpendicular to each other, and both are different from the axis of the collimator 31. For ease of explanation, the axis of the collimator 31 can be referred to as the third axis. For example, the first axis and the second axis are perpendicular to the third axis.
[0051] The adapter 4 is located in at least one parallel light tube 31 at one end facing the device under test 10. The adapter 4 can be a standard part, and its structure will not be described in detail here.
[0052] The calibration instrument provided by this invention uses at least two fine-tuning mechanisms 3. Each fine-tuning mechanism 3 can rotate the collimator 31 during installation and can be driven by a first adjustment component 32 to swing the collimator 31 around a first axis and by a second adjustment component 33 to swing the collimator 31 around a second axis. This adjustment ensures that the crosshairs of the collimator 31 are parallel to the two-dimensional axis of the connector 2. Furthermore, the adapter 4 causes displacement of the emitted light from the corresponding collimator 31 to meet the spacing requirements of the emitted light from at least two collimators 31, ensuring that the optical axis spacing between the two collimators 31 is the same as the optical axis spacing of the multi-light fusion device on the product. During calibration, the aiming scope and other testing equipment 10 are installed on the connector 2, and power is supplied to each collimator 31. The center deviation of the multi-light fusion testing equipment 10 can be corrected through the collimators 31 installed on the at least two fine-tuning mechanisms 3.
[0053] In summary, this calibrator, through the adjustment of the collimator 31 by the first adjustment component 32 and the second adjustment component 33, combined with the adjustment of the rotation angle of the collimator 31 during installation, and with the setting of the adapter 4, can perform the calibration of the more than 10 light fusion of the device under test without the need for an off-axis reflective collimator 31, thus reducing the size, lowering the cost, and simplifying the adjustment operation.
[0054] In some embodiments, the adapter 4 includes a lens mount 41 and a rhomboid prism 42 disposed within the lens mount 41. The lens mount 41 is provided with a sleeve 411 for fitting onto the end of the collimator 31 facing the connector 2. The lens mount 41 is provided to facilitate the installation of the rhomboid prism 42. Exemplarily, the adapter 4 is assembled to the lens mount 41, secured with plastic set screws, and then fixed with adhesive.
[0055] In some embodiments, the mounting base 1 includes a base 11 and a side bracket 12. The base 11 is used to mount the device under test 10, and specifically, the base 11 is provided with a connector 2. The side bracket 12 is disposed on the base 11 and extends along a first axial direction, and at least two fine-tuning mechanisms 3 are respectively disposed on the side bracket 12. That is, the first axial direction is the extending direction of the side bracket 12, and the second axial direction is a direction perpendicular to the side bracket 12. The cooperation between the base 11 and the side bracket 12 facilitates the installation of each fine-tuning mechanism 3, while ensuring the stability, reliability, and portability of the equipment, and is beneficial for installation and testing in different production lines and operating environments. For example, the base 11 can be a U-shaped base.
[0056] In some embodiments, the mounting position of at least one fine-tuning mechanism 3 on the side bracket 12 is adjustable. By making the mounting position of the fine-tuning mechanism 3 on the side bracket 12 adjustable, the position of the fine-tuning mechanism 3 can be adjusted as needed, thereby adjusting the optical axis spacing of the collimators 31 on the two fine-tuning mechanisms 3 to adapt to the product under test. This configuration allows the calibrator to have a wider range of applications. For example, the side bracket 12 is provided with multiple bolt holes, and the fine-tuning mechanism 3 can be connected to different bolt holes to adjust its mounting position.
[0057] In some embodiments, the first adjustment assembly 32 includes two cooperating first adjustment members. The forces applied by the two first adjustment members to the collimator 31 are along the second axis and in opposite directions. For example, one first adjustment member applies a pulling force to the collimator 31, and the other first adjustment member applies a pushing force to the collimator 31; or, the two first adjustment members respectively apply a pulling force to the collimator 31, and the pulling force acts on both sides of the collimator 31 along the second axis; or, the two first adjustment members respectively apply a pushing force to the collimator 31, and the pushing force acts on both sides of the collimator 31 along the second axis. The cooperation of the two first adjustment members can both drive the collimator 31 to swing around the first axis and lock the collimator 31 at the current swing angle around the first axis. It can be understood that the forces applied by the two first adjustment members to the collimator 31 can either act directly on the collimator 31 to apply a force to the collimator 31, or act on other components to apply a force to the collimator 31 indirectly. The positions of the two first adjusting members acting on the collimator 31 should not fall on the axis of the swing around the first axis. The two first adjusting members work together to create a simple structure and convenient operation. In other embodiments, a knob located on the axis of the swing around the first axis can also be used to drive the collimator 31 to swing.
[0058] In some embodiments, the second adjustment assembly 33 includes two cooperating second adjustment members. The forces applied by the two second adjustment members to the collimator 31 are along the first axial direction and in opposite directions. For example, one second adjustment member applies a pulling force to the collimator 31, and the other second adjustment member applies a pushing force to the collimator 31; or, the two second adjustment members respectively apply a pulling force to the collimator 31, and the pulling force acts on both sides of the collimator 31 along the first axial direction; or, the two second adjustment members respectively apply a pushing force to the collimator 31, and the pushing force acts on both sides of the collimator 31 along the first axial direction. The cooperation of the two second adjustment members can both drive the collimator 31 to swing around the second axial direction and lock the collimator 31 at the current swing angle around the second axial direction. It can be understood that the forces applied by the two second adjustment members to the collimator 31 can either act directly on the collimator 31 to apply a force to the collimator 31, or act on other components to apply a force to the collimator 31 indirectly. The positions of the two second adjusting members acting on the collimator 31 should not fall on the axis of the swing around the second axis. The combination of the two second adjusting members results in a simple structure and convenient operation. In other embodiments, a knob located at the axis of the swing around the second axis can also be used to drive the collimator 31 to swing.
[0059] In some embodiments, the fine-tuning mechanism 3 further includes an adjustable mounting component 34, which includes a support body 341 and a fixing component 342. The support body 341 is movably disposed on the mounting base 1. The first adjustment component 32 and the second adjustment component 33 act on the support body 341 respectively, allowing the support body 341 to swing relative to the mounting base 1 around a first axis and a second axis under the influence of the first and second adjustment components 32 and 33 respectively. Specifically, the support body 341 can be a support plate. The fixing component 342 is disposed on the support body 341 and is used to fix the collimator 31. It is understood that the support body 341 and the fixing component 342 can be either an integral structure or a separate structure. By providing the support body 341, it is convenient to cooperate with the first adjustment component 32 and the second adjustment component 33. The collimator 31 is mounted on the fixing component 342 without directly cooperating with the first and second adjustment components 32 and 33.
[0060] In some embodiments, the fine-tuning mechanism 3 further includes a pad 35 disposed between the mounting base 1 and the support body 341. One end of the pad 35 facing the support body 341 is arc-shaped and mates with the center of the support body 341. By providing the pad 35 between the mounting base 1 and the support body 341, a seesaw-like structure is formed, facilitating the first adjustment component 32 and the second adjustment component 33 to swing the support body 341. The arc-shaped end of the pad 35 facing the support body 341 provides support without limiting the swing of the support body 341 within a certain range around the first and second axes. For example, the end of the pad 35 facing the support body 341 is cylindrical, with the axis of the cylindrical surface being the aforementioned first axis, allowing the support body 341 to swing on the cylindrical surface.
[0061] In some embodiments, the support body 341 has an arc-shaped groove with a circular arc cross-section at one end facing the mounting base 1. The cylindrical surface of the pad 35 mates with the arc-shaped groove, and the radius of the arc-shaped groove is larger than the outer diameter of the cylindrical surface. The cylindrical surface can rotate within the arc-shaped groove around the first axis and the second axis, respectively. During adjustment, the swing stroke of the support body 341 around the first axis and the second axis is small, and the mating clearance between the arc-shaped groove and the cylindrical surface support can be set accordingly. As described above, the arc-shaped groove can play a positioning role for the cylindrical surface, facilitating assembly.
[0062] In some embodiments, the support body 341, the pad 35, and the mounting base 1 are respectively provided with first bolt holes 501 along the second axial direction. A first bolt 5 passes through the first bolt hole 501 to pre-tighten the support body 341, the pad 35, and the mounting base 1. It is understood that the first bolt hole 501 and the first bolt 5 are clearance-fitted so that the second bolt hole 601 does not affect the swing of the support body 341 around the first axial direction and the second axial direction within a certain range. During installation, the first bolt 5 is passed through the first bolt hole 501 on the support body 341, the pad 35, and the mounting base 1 and pre-tightened to prevent the support body 341, the pad 35, and the mounting base 1 from loosening. The support body 341 can swing around the second axial direction so that the second adjustment component 33 can adjust it. The axial direction of the first bolt 5 is the second axial direction.
[0063] In some embodiments, the support body 341 and the pad 35 are respectively provided with second bolt holes 601, and the mounting base 1 is provided with a third bolt hole 602 opposite to the second bolt hole 601. A second bolt 6 is inserted into the second bolt hole 601 and the third bolt hole 602 to pre-tighten the support body 341, the pad 35 and the mounting base 1, and the second bolt hole 601 can move relative to the second bolt 6. During installation, the second bolt 6 is inserted into the second bolt hole 601 on the support body 341 and the pad 35 and the third bolt hole 602 on the mounting base 1 and pre-tightened, thereby preventing the support body 341, the pad 35 and the mounting base 1 from loosening. At the same time, the second bolt hole 601 should not affect the swing of the support body 341 within a certain range around the first axis and the second axis. For example, the second bolt hole 601 is a strip hole. As configured above, the pre-tightening effect on the support body 341 facilitates the adjustment function of the first adjustment component 32 and the second adjustment component 33.
[0064] In some embodiments, the first adjusting member is a first adjusting bolt. The first adjusting bolt can be threadedly connected to the support body 341 to provide tension, or it can be threadedly connected to the mounting base 1 and abut against the support body 341 to provide thrust. Specifically, the installation method is selected by the installation positions of the two first adjusting bolts to provide a reverse force to the support body 341. The first adjusting member uses a first adjusting bolt, which is convenient to operate, and since the first adjusting bolt can be continuously adjusted, the adjustment accuracy is high.
[0065] In some embodiments, the first adjustment component 32 includes a first push bolt 321 and a first pull bolt 322. That is, the two first adjustment components in the above embodiments are the first push bolt 321 and the first pull bolt 322, respectively. The first push bolt 321 and the first pull bolt 322 are threadedly engaged with the mounting base 1. The tail of the first push bolt 321 abuts against the end face of the support body 341 facing the mounting base 1, and the bolt head of the first pull bolt 322 is engaged with the end face of the mounting base 1 away from the support body 341. By screwing the first push bolt 321 and the first pull bolt 322, the first push bolt 321 can push the support body 341, and the first pull bolt 322 can pull the support body 341 in the opposite direction, thereby realizing the adjustment of the support body 341. For example, the first push bolt 321 and the first pull bolt 322 are located on the same side of the pad 35, which facilitates user operation.
[0066] In other embodiments, both first adjusting members can be first pushing bolts 321. The two first pushing bolts 321 are threadedly engaged with the mounting base 1, and the tail ends of the two first pushing bolts 321 abut against the end face of the support body 341 facing the mounting base 1 and the end face of the support body 341 away from the mounting base 1, respectively. By screwing the first pushing bolts 321 and the first pushing bolts 321, the two can push the support body 341 from both sides along the second axis, thereby realizing the adjustment and locking of the support body 341.
[0067] In some embodiments, the second adjusting member is a second adjusting bolt. The second adjusting bolt can be threadedly connected to the support body 341 to provide tension, or it can be threadedly connected to the mounting base 1 and abut against the support body 341 to provide thrust. Specifically, the installation method is selected by choosing the installation positions of the two second adjusting bolts to provide a reverse force to the support body 341. The use of a second adjusting bolt as the second adjusting member is convenient to operate, and because the second adjusting bolt is continuously adjustable, it provides high adjustment accuracy.
[0068] In some embodiments, the mounting base 1 is provided with mounting lugs 7 on opposite sides along the first axial direction. The second adjustment component 33 includes second push bolts 331 that respectively cooperate with the mounting lugs 7 on both sides. The tail ends of the second push bolts 331 on the mounting lugs 7 on both sides abut against opposite sides of the support body 341. That is, both second adjustment components in the above embodiments are second push bolts 331. It is understood that the mounting lugs 7 and the mounting base 1 can be an integral structure or a fixedly connected separate structure, such as a separate structure connected by bolts. By providing second push bolts 331 on both sides of the support body 341 along the first axial direction, the second push bolts 331 can push the support body 341 from opposite sides by screwing the two second push bolts 331, thereby realizing the adjustment and locking of the support body 341. For example, the two second push bolts 331 are located on the same side of the pad 35, which facilitates user operation.
[0069] In other embodiments, one of the two second adjusting components may be a second push bolt 331 threadedly engaged with the mounting base 1, and the other may be a second pull bolt threadedly engaged with the support body 341. The tail of the second push bolt 331 abuts against the end face of the support body 341 facing the mounting lug 7, and the head of the second pull bolt is engaged with the end face of the mounting lug 7 away from the support body 341. By screwing the second push bolt 331 and the second pull bolt, the second push bolt 331 can push the support body 341, and the second pull bolt can pull the support body 341 in the opposite direction, thereby achieving adjustment and locking of the support body 341. For example, the second push bolt 331 and the second pull bolt are located on the same side of the pad 35, which facilitates user operation.
[0070] In some embodiments, the fixing component 342 includes a lower clamp seat 3421 and an upper clamp 3422. The lower clamp seat 3421 is disposed on the support body 341; the upper clamp 3422 is detachably connected to the lower clamp seat 3421, and the lower clamp seat 3421 and the upper clamp 3422 are used to hold the collimator 31. It is understood that the lower clamp seat 3421 and the support body 341 can be an integral structure or a separate structure connected by a fixing method. For example, the lower clamp seat 3421 and the upper clamp 3422 are connected by screws, which is convenient for disassembly and assembly. During installation, the lower clamp seat 3421 is installed on the support body 341, specifically by fixing with screws. The adjustable object distance collimator 31 is installed on the lower clamp seat 3421, and then the upper clamp 3422 is assembled and pre-fixed with screws. Rotate the adjustable object distance collimator 31 so that the crosshairs of the adjustable object distance collimator 31 are parallel to the mounting surface of the connector 2.
[0071] In some embodiments, the lower clamp seat 3421 is detachably connected to the support body 341. This allows the lower clamp seat 3421 to be adapted to different devices under test 10, such as different thermal imaging sights, by increasing or decreasing its height, thus making the calibrator more versatile.
[0072] In some embodiments, the calibrator further includes a connector 2, which is disposed on the mounting base 1 and is used to mount the device under test 10. It is understood that the connector 2 has a mounting surface that mates with the device under test 10 for positioning the device under test 10. A first adjustment component 32 and a second adjustment component 33 are used to adjust the optical axis of the collimator 31 to be coaxial with the axis defined by the connector 2. When the calibrator is in use, the crosshairs of the collimator 31 can be adjusted to coincide with the crosshairs of a standard device mounted on the connector 2, thus indicating that the crosshairs of the collimator 31 are parallel to the two-dimensional axis of the connector 2. After the collimator 31 is adjusted to the correct position, it is locked by the fixing component 342, the first adjustment component 32, and the second adjustment component 33. During testing, the device under test 10 is simply mounted on the connector 2.
[0073] In some embodiments, the connector 2 is a rail to ensure installation accuracy.
[0074] In some embodiments, the connector 2 is equipped with a camera 8. By setting the camera 8, the camera 8 can capture the relative position of the crosshairs on the device under test 10 and the crosshairs on the collimator 31. The operator can clearly and intuitively observe the center deviation of the device under test 10 through the image captured by the camera 8. In summary, by setting the camera 8, digital visualization calibration can be achieved, reducing the skill requirements for operators and improving the calibration efficiency of the product.
[0075] In some embodiments, the collimator 31 includes a primary mirror tube, a reticle assembly, an objective lens assembly, and a first adjustment assembly; the reticle assembly is used to achieve beam modulation and image preset, and the objective lens assembly is used to project the beam emitted by the reticle assembly; both the reticle assembly and the objective lens assembly are inserted into the internal cavity of the primary mirror tube, with the reticle assembly near the inlet end of the primary mirror tube and the objective lens assembly near the outlet end of the primary mirror tube; the reticle assembly is movable along the length direction of the primary mirror tube, and the peripheral wall of the primary mirror tube has an adjustment port extending along its own length direction, the first adjustment assembly passing through the adjustment port and connected to the reticle assembly for locking or unlocking the reticle assembly.
[0076] The primary mirror tube is used to confine the light beam entering it. The cavity inside the primary mirror tube is the propagation channel of the light beam. The reticle assembly, objective lens assembly, and first adjustment assembly are all supported and mounted on the primary mirror tube. The reticle assembly and objective lens assembly are both located in the cavity inside the primary mirror tube, with the reticle assembly closer to the inlet side of the cavity and the objective lens assembly closer to the outlet side. An adjustment port is provided on the peripheral wall of the primary mirror tube. Preferably, the adjustment port is a straight, elongated slit extending along the length of the primary mirror tube. Of course, other types of slits can also be used. Any type of adjustment component, such as a zigzag slit, is acceptable as long as it meets the requirement of adjusting the reticle assembly along the length of the main scope tube. Part of the structure of the first adjustment component extends into the interior of the main scope tube to connect the reticle assembly. The first adjustment component can be slidably inserted into the adjustment port along the length of the main scope tube, and the remaining structure of the first adjustment component remains outside the main scope tube. The reticle assembly is supported in the main scope tube by the first adjustment component, and the reticle assembly can be locked or released. This allows the operator to easily adjust the position of the reticle assembly relative to the main scope tube using the first adjustment component.
[0077] In use, the light emitted by the optical system enters the main lens tube through the inlet, and then passes through a pre-shaped light-transmitting slit in the reticle assembly. This slit can be cross-shaped or L-shaped, and four-bar targets of different sizes can be placed around the cross-shaped slit. The objective lens assembly then projects a pre-shaped image onto the light beam. This adjustable object distance thermal imaging collimator allows for focusing and measurement of the thermal imager. The reticle assembly is movably mounted on the main lens tube. By moving the reticle assembly, object distances ranging from meters to infinity can be simulated, facilitating focusing and calibration of thermal imaging devices with different object distances.
[0078] Furthermore, the collimator also includes a cooled target assembly and a second adjustment assembly. The cooled target assembly is used to cool the reticle assembly. The cooled target assembly is slidably inserted into the main mirror tube, and the cooled target assembly, reticle assembly, and objective lens assembly are arranged sequentially along the length of the main mirror tube. The second adjustment assembly passes through the adjustment port and is connected to the cooled target assembly, used to lock or unlock the cooled target assembly. The cooled target assembly is also located in the internal cavity of the main mirror tube, and the cooled target assembly, reticle assembly, and objective lens assembly are arranged sequentially along the length of the main mirror tube. Correspondingly, a portion of the structure of the second adjustment assembly extends into the interior of the main mirror tube to connect to the cooled target assembly. The second adjustment assembly is slidably inserted into the adjustment port along the length of the main mirror tube, and the remaining structure of the second adjustment assembly remains outside the main mirror tube. The second adjustment assembly supports the cooled target assembly in the main mirror tube and can lock or release the cooled target assembly, allowing the operator to easily adjust the position of the cooled target assembly relative to the main mirror tube.
[0079] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0080] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A calibration instrument, characterized in that, include: Mounting base (1); At least two fine-tuning mechanisms (3) are provided, each of which includes a collimator (31), a first adjustment component (32), and a second adjustment component (33). The collimator (31) is movably disposed on the mounting base (1). The first adjustment component (32) is disposed on the mounting base (1) and is used to adjust the collimator (31) to swing around a first axis. The second adjustment component (33) is disposed on the mounting base (1) and is used to adjust the collimator (31) to swing around a second axis. The first axis and the second axis are perpendicular to each other and are both different from the axis of the collimator (31). An adapter (4) is provided at one end of at least one of the collimators (31) for changing the beam direction of the collimator (31).
2. The calibrator according to claim 1, characterized in that, The adapter (4) includes a mirror base (41) and an oblique prism (42) disposed in the mirror base (41). The mirror base (41) is provided with a sleeve (411) to be fitted onto one end of the collimator (31).
3. The calibrator according to claim 1, characterized in that, The mounting base (1) includes: Base (11) for mounting the device under test (10); A side bracket (12) is provided on the base (11) and extends along the first axis, and at least two of the fine-tuning mechanisms (3) are respectively provided on the side bracket (12).
4. The calibrator according to claim 3, characterized in that, At least one of the fine-tuning mechanisms (3) is adjustable in its mounting position on the side bracket (12).
5. The calibrator according to any one of claims 1-4, characterized in that, The first adjustment assembly (32) includes two cooperating first adjustment members, and the forces applied by the two first adjustment members to the collimator (31) are along the second axis and in opposite directions; And / or, The second adjustment assembly (33) includes two cooperating second adjustment members, the two second adjustment members applying forces to the collimator (31) along the first axis and in opposite directions.
6. The calibrator according to any one of claims 1-4, characterized in that, It also includes an adjustable mounting component (34), which includes a support body (341) and a fixing component (342). The support body (341) is movably disposed on the mounting base (1), and the fixing component (342) is disposed on the support body (341) and used to fix the collimator (31). The first adjustment component (32) and the second adjustment component (33) act on the support body (341) respectively.
7. The calibrator according to claim 6, characterized in that, A pad (35) is provided between the mounting base (1) and the support body (341). The end of the pad (35) facing the support body (341) is arc-shaped and cooperates with the middle of the support body (341).
8. The calibrator according to claim 6, characterized in that, The first adjustment component (32) includes a first push bolt (321) threadedly engaged with the mounting base (1) and a first pull bolt (322) threadedly engaged with the support body (341). The tail of the first push bolt (321) abuts against the end face of the support body (341) facing the mounting base (1), and the bolt head of the first pull bolt (322) is stuck on the end face of the mounting base (1) away from the support body (341).
9. The calibrator according to claim 6, characterized in that, The mounting base (1) is provided with mounting ears (7) on opposite sides along the first axial direction. The second adjustment component (33) includes second push bolts (331) respectively provided on the mounting ears (7) on both sides. The tail ends of the second push bolts (331) on both sides abut against the opposite sides of the support body (341).
10. The calibrator according to claim 6, characterized in that, The fixing component (342) includes: The lower clamp seat (3421) is provided on the support body (341). The upper clamp (3422) is detachably connected to the lower clamp seat (3421), and the lower clamp seat (3421) and the upper clamp (3422) are used to hold the parallel light tube (31).
11. The calibrator according to any one of claims 1-4, characterized in that, It also includes a connector (2) provided on the mounting base (1), the connector (2) being used to mount the device under test (10).