Compatible and fixed optical path module and optical imaging instrument

Abstract

The utility model relates to the technical field of optical imaging equipment, in particular to a compatible and fixed optical path module and an optical imaging instrument, and the compatible and fixed optical path module comprises a lens cone; the fixing frame comprises a first frame body, a second frame body and a connecting assembly, the first frame body is fixedly connected with the lens cone, the second frame body is used for being connected with a mounting seat, and the connecting assembly is used for connecting the first frame body and the second frame body. An adjusting structure is arranged between the connecting assembly and the first frame body and / or the second frame body, and the adjusting structure is used for adjusting the distance between the first frame body and the second frame body. The distance between the first frame body and the second frame body can be adjusted according to needs through the adjusting structure, so that the assembly error and the processing error can be compensated, the external force borne by the lens cone in the installation process can be maintained in an allowable range, and the influence on the optical performance of the optical path module in the assembly process can be avoided.

Description

Technical Field

[0001] The present application relates to the technical field of optical imaging equipment, and in particular to a compatible fixed optical path module and an optical imaging instrument. Background Art

[0002] Optical microscopy instruments such as confocal microscopes and white light interferometers are all equipped with optical path modules. To ensure the optical performance of the optical path modules, they need to be debugged in a clean room before instrument assembly to ensure optimal optical performance. After debugging is completed, the optical path modules are assembled to the instrument's mounting base, such as the instrument's Z-axis slider.

[0003] The optical performance of an optical module is extremely sensitive to the position of its internal components, especially the optical elements. Therefore, during assembly, the relative positions of key components (such as the lens barrel) must be maintained unchanged, while excessive force that could cause deformation of the optical module must be avoided.

[0004] However, due to assembly errors and / or processing errors, in actual operation, it is often difficult to avoid excessive force on a part of the optical path module when assembling through preset holes and a fixing frame, resulting in affected optical performance of the optical path module. Utility Model Content

[0005] The present application provides a compatible fixed optical path module and an optical imaging instrument, which helps to improve the problem that the optical performance is easily affected during the assembly process of the optical path module.

[0006] According to the first aspect, an embodiment provides a compatible fixed optical path module, including:

[0007] lens barrel;

[0008] And a fixed frame, the fixed frame includes a first frame, a second frame and a connecting assembly, the first frame is fixedly connected to the lens barrel, the second frame is used to be connected to the mounting seat, the connecting assembly is used to connect the first frame and the second frame, and an adjustment structure is provided between the connecting assembly and the first frame and / or the second frame, and the adjustment structure is used to adjust the distance between the first frame and the second frame.

[0009] In one embodiment, the connection component includes:

[0010] a connecting member having a first portion and a second portion that are fixedly connected, the first portion being used to connect to the first frame, the second portion being used to connect to the second frame, and both the first portion and the second portion being provided with connecting holes;

[0011] and a fastener, the fastener being arranged corresponding to the connecting hole, the fastener passing through the corresponding connecting hole and fixedly connected to the corresponding first frame or the second frame, so that the connecting member connects the first frame and the second frame;

[0012] At least one of the connecting holes is a long hole, and the long hole is arranged along the spacing direction between the first frame body and the second frame body; the long hole and the corresponding fastener cooperate to form the adjustment structure.

[0013] In one embodiment, the connecting holes are all long holes.

[0014] In one embodiment, at least two groups of the connecting components are provided, and two groups of the connecting components are respectively provided on opposite sides of the connecting ends of the first frame and the second frame.

[0015] In one embodiment, a mounting through hole is provided on the first frame, and the first frame is fixed to the outside of the lens barrel through the mounting through hole.

[0016] In one embodiment, the first frame is provided with an opening on one side of the mounting through hole, the opening is arranged along the radial direction of the mounting through hole, and is connected to the mounting through hole; the first frame is also provided with an opening adjustment member, and the opening adjustment member is used to adjust the opening of the opening to adjust the size of the mounting through hole.

[0017] In one embodiment, the opening adjustment member includes a rod body, and a first opening and a second opening are correspondingly provided on the side walls on both sides of the opening. The rod body is arranged in the first opening along the axial direction of the first opening, and one end of the rod body passes through the first opening and is threadedly connected to the second opening.

[0018] In one embodiment, an elastic pad is sandwiched in the opening.

[0019] In one embodiment, the optical path module further includes a positioning frame, wherein the positioning frame and the fixing frame are spaced apart along the axial direction of the lens barrel, one side of the positioning frame is fixedly connected to the lens barrel, and the other side is used to connect to the mounting seat.

[0020] According to a second aspect, an embodiment provides an optical imaging instrument, comprising:

[0021] Mounting seat;

[0022] And the compatible and fixed optical path module described in any of the above embodiments, wherein the optical path module is arranged on the mounting seat.

[0023] According to the optical path module of the above embodiment, since the fixing frame includes a first frame body, a second frame body and a connecting assembly, while the connecting assembly connects the first frame body and the second frame body, the distance between the first frame body and the second frame body can be adjusted as needed through the adjustment structure. Therefore, when the lens barrel is installed on the mounting seat through the fixing frame, the distance between the first frame body and the second frame can be adjusted through the adjustment structure to compensate for assembly errors and processing errors, which helps to maintain the external force borne by the lens barrel during the installation process within an allowable range and prevent the assembly process from affecting the optical performance of the optical path module. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic structural diagram of a compatible fixed optical path module according to an embodiment;

[0025] Figure 2 A front view of a compatible fixed optical path module according to an embodiment;

[0026] Figure 3 A schematic structural diagram of a fixing frame in a compatible and fixed optical path module according to an embodiment;

[0027] Figure 4 A schematic structural diagram of a compatible fixed optical imaging instrument according to an embodiment.

[0028] In the figure, 100, lens barrel;

[0029] 200, fixing frame; 210, first frame; 211, mounting hole; 212, opening; 213, first opening; 214, elastic pad; 220, second frame; 230, connecting member; 231, first portion; 232, second portion; 233, long hole;

[0030] 300, positioning frame;

[0031] 400, base; 410, support arm;

[0032] 500, driving mechanism; 510, mounting seat. DETAILED DESCRIPTION

[0033] The present application is further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0034] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various embodiments. Furthermore, the steps or actions in the method description may be reordered or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various sequences in the specification and drawings are provided solely for the purpose of clearly describing a particular embodiment and are not intended to be mandatory, unless otherwise specified.

[0035] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0036] The optical performance of the optical module is extremely sensitive to the position of its internal components, especially the optical elements. Therefore, during the assembly process, the relative positions of key components in the optical module (such as the lens barrel 100) must be maintained unchanged. However, due to assembly errors and / or processing errors, there may be significant errors between the preset hole positions and the fixing frame 200. To ensure accurate installation, excessive external force is often applied to parts of the optical module during assembly, causing the optical module to twist or deform, thereby affecting its optical performance.

[0037] In the embodiment of the present application, when the lens barrel 100 is installed on the mounting base 510 through the fixing frame 200, the distance between the first frame 210 and the second frame 220 can be adjusted by adjusting the structure to compensate for assembly errors and processing errors, so that the external force borne by the lens barrel 100 during the installation process can be maintained within the allowable range, which helps to overcome assembly errors and processing errors and avoid the assembly process affecting the optical performance of the optical path module.

[0038] Examples of compatible fixed optical path modules in this application include:

[0039] In one embodiment, please refer to Figure 1-Figure 4 The compatible fixed optical path module includes a lens barrel 100 and a fixing frame 200 , and the fixing frame 200 is used to fix the lens barrel 100 on the mounting seat 510 .

[0040] Those skilled in the art will understand that in order to overcome the influence of assembly errors and processing errors on the assembly accuracy of the optical module, an adjustable fixing frame 200 can be used to compensate for the processing errors and assembly errors by adjusting the fixing frame 200 during installation to ensure the installation quality.

[0041] In one embodiment, please refer to Figure 1-Figure 4 The fixed frame 200 includes a first frame 210, a second frame 220, and a connecting assembly. The first frame 210 is fixedly connected to the lens barrel 100, and the second frame 220 is used to connect to the mounting base 510. The mounting base 510 can be understood as the mounting base of the lens barrel 100, for example, it can be a Z-axis slider in an optical imaging instrument. The connecting assembly is used to connect the first frame 210 and the second frame 220. An adjustment structure is provided between the connecting assembly and the first frame 210 and / or the second frame 220. The adjustment structure is used to adjust the distance between the first frame 210 and the second frame 220.

[0042] By providing a fixing frame 200 with an adjustment structure to compensate for assembly errors and / or processing errors, the gap between the first frame 210 and the second frame 220 can be adaptively adjusted as needed during installation, thereby avoiding assembly with large errors and circumventing the problem of excessive force on some parts of the optical path module during assembly, which may affect the optical performance.

[0043] In one embodiment, please refer to Figure 1 and Figure 3 The first frame 210 is provided with a mounting hole 211, and the first frame 210 is fixed to the outside of the lens barrel 100 through the mounting hole 211, so that the fixing frame 200 is fixedly mounted on the lens barrel 100. For example, the first frame 210 can be a plate-shaped structure, and the mounting hole 211 is provided in the middle of the first frame 210. The second frame 220 is connected to one side of the first frame 210 in parallel through a connecting assembly.

[0044] In order to ensure that the first frame 210 can be stably fixed on the lens barrel 100 and overcome the influence of the processing error on the fixing stability, in one embodiment, please refer to Figure 3 The first frame 210 is provided with an opening 212 on one side of the mounting through hole 211. The opening 212 is arranged along the radial direction of the mounting through hole 211 and is connected to the mounting through hole 211; the first frame 210 is also provided with an opening adjustment member (not shown in the figure), which is used to adjust the opening of the opening 212 to adjust the size of the mounting through hole 211.

[0045] By providing the opening 212 and cooperating with the opening adjustment member, the size of the mounting hole 211 can be fine-tuned during the installation process to compensate for dimensional deviations that may occur during the processing, so that the hole wall of the mounting hole 211 can fit tightly with the lens barrel 100, thereby ensuring that even if there are processing errors, the first frame 210 can be stably fixed on the lens barrel 100, which helps to improve the fixing stability of the first frame 210.

[0046] In one embodiment, the opening adjustment member may include a rod, with a first opening 213 and a second opening (not shown) correspondingly provided on the sidewalls on either side of the opening 212. The rod is disposed in the first opening 213 so as to rotate along the axial direction of the first opening 213. One end of the rod extends through the first opening 213 and is threadedly connected to the second opening. By using the rod as the opening adjustment member, the rotational motion of the rod can be converted into linear motion via a threaded connection, thereby enabling subtle and controllable changes in the opening of the opening 212. This allows for more accurate adjustment of the size of the mounting hole 211, facilitating precise adjustment.

[0047] Exemplarily, the opening adjustment member is a screw, the first opening 213 is a through hole, the second opening is a threaded blind hole, the first opening 213 and the second opening are coaxially arranged, the tip of the screw passes through the first opening 213 and is threadedly connected to the second opening, and the head of the screw abuts against the hole of the first opening 213 on the side away from the second opening, so that the screw can be rotated relative to the first opening 213, and the size of the opening 212 can be adjusted by turning the screw.

[0048] In one embodiment, the opening adjustment member can also be a bidirectional screw having a positive thread segment and a negative thread segment. One of the positive thread segment and the negative thread segment is threadedly connected to the first opening 213, and the other is threadedly connected to the second opening, which can also achieve adjustment of the opening degree of the opening 212.

[0049] In another embodiment, the opening adjustment member can also be an adjustment clamp, which can include a screw, a fixed clamp and a movable clamp. The fixed clamp is fixed on the screw, and the movable clamp is threadedly connected to the screw and spaced apart from the fixed clamp. During installation, the side of the first frame 210 with the opening 212 can be clamped between the fixed clamp and the movable clamp. By adjusting the position of the movable clamp to adjust the clamping force, the opening degree of the opening 212 can be adjusted.

[0050] In other embodiments, the opening adjustment member may also adopt other structures or configurations to meet both design and usage requirements.

[0051] In one embodiment, please refer to Figure 3An elastic pad 214 is sandwiched in the opening 212. The force applied during the adjustment of the opening adjustment member can be gradually transmitted through the elastic pad 214, making the adjustment process smoother, continuous and controllable, and helping to avoid stress concentration caused by excessive adjustment during the adjustment process, thereby protecting the surface of the lens barrel 100.

[0052] Exemplarily, an elastic pad 214 is sandwiched in the opening 212, and a through hole is provided in the middle of the elastic pad 214 corresponding to the first opening 213 and the second opening. The inner diameter of the through hole is not less than the outer diameter of the rod body, so that the rod body can pass through the elastic pad 214 and be rotated and inserted into the second threaded hole.

[0053] Those skilled in the art should know that the elastic pad 214 may be made of rubber, silicone or other elastic materials.

[0054] In one embodiment, please refer to Figure 1 and Figure 3 The second frame 220 can be configured as a C-shaped frame structure so as to be engaged with the Z-axis slider serving as the mounting seat 510 .

[0055] In one embodiment, please refer to Figure 1 and Figure 3 The connection assembly includes a connector 230 and a fastener (not shown in the figure). The connector 230 has a first portion 231 and a second portion 232 that are fixedly connected, wherein the first portion 231 is used to connect to the first frame 210, and the second portion 232 is used to connect to the second frame 220. The first portion 231 and the second portion 232 are both provided with connection holes; the fasteners are provided corresponding to the connection holes, and the fasteners pass through the corresponding connection holes to be fixedly connected to the corresponding first frame 210 or second frame 220, so that the connector 230 connects the first frame 210 and the second frame 220. At least one of the connection holes is an elongated hole 233, which is provided along the spacing direction between the first frame 210 and the second frame 220; the elongated hole 233 and the corresponding fastener cooperate to form an adjustment structure.

[0056] The long hole 233 on the connecting member 230 allows a certain relative movement space between the first frame 210 and the second frame 220. Even if there is an assembly error or a processing error, the error can be compensated, which helps to enhance assembly flexibility and improve installation quality.

[0057] In some embodiments, please refer to Figure 3 The connecting holes can all be long holes 233 , which helps to expand the adjustment range of the gap between the first frame 210 and the second frame 220 .

[0058] In some embodiments, please refer to Figure 3At least two groups of connecting components can be provided, and two groups of connecting components are respectively provided on opposite sides of the connecting ends of the first frame 210 and the second frame 220 to enhance the connection stability between the first frame 210 and the second frame 220, thereby helping to prevent the lens barrel 100 from shifting during assembly and use.

[0059] For example, please refer to Figure 3 There are two groups of connecting components, which are symmetrically arranged on both sides of the gap between the first frame 210 and the second frame 220 along the length direction, that is, Figure 3 In the perspective shown, the left and right sides of the gap between the first frame 210 and the second frame 220, and the connecting holes on all the connecting members 230 are elongated holes 233. The elongated holes 233 are arranged along the spacing direction of the first frame 210 and the second frame 220, that is, the width direction of the gap between the first frame 210 and the second frame 220. The axial direction of the elongated holes 233 is parallel to the length direction of the gap between the first frame 210 and the second frame 220.

[0060] Threaded holes are provided on both sides of the long holes 233 corresponding to the parts of the first frame 210 and the second frame 220 that are close to each other. The fastener can be a screw, and the tip of the screw passes through the long hole 233 and is threadedly connected to the threaded hole. The connecting member 230 is clamped and fixed between the head of the screw and the first frame 210 or the second frame 220, so that the fixing frame 200 can be telescopically adjusted along the width direction of the gap between the first frame 210 and the second frame 220, which facilitates the stable assembly of the lens barrel 100 in the presence of assembly errors or processing errors.

[0061] Those skilled in the art will appreciate that the connecting components may also be provided on both sides of the gap between the first frame 210 and the second frame 220 along the height direction, that is, Figure 3 The upper and lower sides of the gap between the first frame 210 and the second frame 220 in the perspective shown. Of course, it can also be set at other positions as long as the adjustable connection between the first frame 210 and the second frame 220 can be achieved.

[0062] In other embodiments, the connecting assembly may also be configured as a movable slide rail with a self-locking function, or may be configured as other structures or configurations that meet design and usage requirements.

[0063] In order to improve the stability of the lens barrel 100, in some embodiments, please refer to Figure 1The optical path module also includes a positioning frame 300. The positioning frame 300 and the fixing frame 200 are arranged at intervals along the axial direction of the lens barrel 100. One side of the positioning frame 300 is fixedly connected to the lens barrel 100, and the other side is used to connect to the mounting seat 510. For example, the positioning frame 300 is arranged above the viewing angle of the lens barrel 100 shown in the figure. A card slot can be provided on one side of the positioning frame 300 for connecting to the mounting seat 510, so that the positioning frame 300 can be movably connected to the mounting seat 510 to cooperate with the fixing frame 200 to fix the lens barrel 100 and improve the fixing stability. The structure of the positioning frame 300 fixing the lens barrel 100 can refer to the setting of the first frame body 210 and will not be repeated here.

[0064] Examples of optical imaging instruments in this application:

[0065] In one embodiment, please refer to Figure 4 The optical imaging instrument includes a mounting base 510 and a compatible fixed optical path module of any of the above embodiments, and the optical path module is arranged on the mounting base 510.

[0066] In one embodiment, please refer to Figure 4 The optical imaging instrument also includes a base 400, a support arm 410, and a driving mechanism 500. The support arm 410 is fixed to one side of the base 400. The driving mechanism 500 is fixed on the support arm 410. The driving mechanism 500 includes a Z-axis slider as a mounting seat 510, and the optical path module is fixed on the mounting seat 510.

[0067] The above specific examples are used to illustrate the present application, which is only used to help understand the present application and is not intended to limit the present application. For those skilled in the art of the present application, based on the concept of the present application, they can also make some simple deductions, modifications or substitutions.

Claims

1. Compatible with fixed optical path modules, characterized by: include: lens barrel; And a fixed frame, the fixed frame includes a first frame, a second frame and a connecting assembly, the first frame is fixedly connected to the lens barrel, the second frame is used to be connected to the mounting seat, the connecting assembly is used to connect the first frame and the second frame, and an adjustment structure is provided between the connecting assembly and the first frame and / or the second frame, and the adjustment structure is used to adjust the distance between the first frame and the second frame.

2. The optical path module according to claim 1, wherein: The connection component includes: a connecting member having a first portion and a second portion that are fixedly connected, the first portion being used to connect to the first frame, the second portion being used to connect to the second frame, and both the first portion and the second portion being provided with connecting holes; and a fastener, the fastener being arranged corresponding to the connecting hole, the fastener passing through the corresponding connecting hole and fixedly connected to the corresponding first frame or the second frame, so that the connecting member connects the first frame and the second frame; At least one of the connecting holes is a long hole, and the long hole is arranged along the spacing direction between the first frame body and the second frame body; the long hole and the corresponding fastener cooperate to form the adjustment structure.

3. The optical path module according to claim 2, wherein: The connecting holes are all long holes.

4. The optical path module according to claim 1, wherein: At least two groups of the connecting components are provided, and two groups of the connecting components are respectively provided on opposite sides of the connecting ends of the first frame and the second frame.

5. The optical path module according to any one of claims 1 to 4, characterized in that: The first frame is provided with a mounting through hole, and the first frame is fixed to the outside of the lens barrel through the mounting through hole.

6. The optical path module according to claim 5, wherein: The first frame is provided with an opening on one side of the mounting through hole, and the opening is arranged along the radial direction of the mounting through hole and is connected to the mounting through hole; the first frame is also provided with an opening adjustment member, and the opening adjustment member is used to adjust the opening of the opening to adjust the size of the mounting through hole.

7. The optical path module according to claim 6, wherein: The opening adjustment member includes a rod body, and a first opening and a second opening are correspondingly provided on the side walls on both sides of the opening. The rod body is arranged in the first opening along the axial direction of the first opening, and one end of the rod body passes through the first opening and is threadedly connected to the second opening.

8. The optical path module according to claim 6, wherein: An elastic pad is clamped in the opening.

9. The optical path module according to any one of claims 1 to 4, characterized in that: The optical path module further comprises a positioning frame, wherein the positioning frame and the fixing frame are spaced apart along the axial direction of the lens barrel, one side of the positioning frame is fixedly connected to the lens barrel, and the other side is used to connect to the mounting seat.

10. An optical imaging instrument, characterized in that include: Mounting seat; And the compatible fixable optical path module according to any one of claims 1 to 9, wherein the optical path module is arranged on the mounting seat.

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