Adjusting device for objective lens

Abstract

The utility model discloses an adjusting device for an objective lens, and relates to the technical field of optical measurement, the adjusting device comprises a bearing member, one end of the bearing member is provided with an adjusting reference part, and the other end of the bearing member is provided with a positioning part; a positioning hole used for fixing the objective lens is formed in the middle of the mounting part, three adjusting parts are further arranged on the mounting part and are arranged in a circumferential array mode with the center axis of the positioning hole as the circle center, each adjusting part comprises an adjusting part, and the length of the portion, entering the position between the mounting part and the positioning part, of each adjusting part is adjustable. When in use, the adjusting reference part for the objective lens is supported on optical equipment, after the objective lens is clamped with the positioning hole of the mounting piece, the mounting piece is supported on the positioning part, and the adjusting piece is enabled to abut against the positioning part; the inclination angle and distance of the mounting piece relative to the adjusting reference part are changed by adjusting the lengths of the three adjusting pieces entering the space between the mounting piece and the positioning part, the whole adjusting device is simple in structure, and the objective lens is very convenient to mount and dismount.

Description

Technical Field

[0001] This application relates to the field of optical measurement technology, and in particular to an adjustment device for an objective lens. Background Technology

[0002] Currently available optical measurement equipment cannot adjust the tilt and back focus of the objective lens over a wide range, and its complex structure makes it inconvenient to use and makes it impossible to quickly assemble or disassemble the objective lens. Utility Model Content

[0003] This application aims to solve one of the aforementioned technical problems in the prior art. Therefore, embodiments of this application provide an adjustment device for an objective lens.

[0004] According to an embodiment of this application, an adjustment device for an objective lens is provided, including a support member, an adjustment reference part is provided at one end of the support member, a positioning part is provided at the other end of the support member, and the support member further includes a clearance channel that extends from the middle of one end of the support member to the middle of the other end.

[0005] The mounting component has a positioning hole in the middle for fixing the objective lens. The mounting component also has three adjustment parts, which are arranged in a circular array with the central axis of the positioning hole as the center. Each adjustment part includes an adjustment member, the length of which the adjustment member enters between the mounting component and the positioning part is adjustable, and the end of the adjustment member abuts against the positioning part.

[0006] The aforementioned adjustment device for objective lenses has at least the following advantages: In use, the adjustment reference part of the adjustment device for objective lenses is placed against the optical equipment. After the objective lens engages with the positioning hole of the mounting member, the mounting member is placed against the positioning part of the supporting member, and the adjustment member of the adjustment part abuts against the positioning part. The clearance channel is used to avoid the objective lens. By adjusting the length of the three adjustment members between the mounting member and the positioning part, the tilt angle and distance of the mounting member relative to the adjustment reference part can be changed, thereby changing the tilt amount and back focus of the objective lens relative to the optical measuring equipment. The entire adjustment device has a simple structure, and the installation and removal of the objective lens are very convenient. In addition, it can quickly and within a wide range adjust the tilt amount and back focus of the objective lens relative to the optical measuring equipment.

[0007] According to the adjustment device for an objective lens described in the embodiments of this application, the adjustment part further includes a limiting member, wherein the adjustment member is adjustable along a direction parallel to the central axis of the positioning hole, and the limiting member is used to restrict the movement of the adjustment member.

[0008] According to the adjustment device for an objective lens described in the embodiments of this application, the adjustment member is connected to the mounting member through a transmission structure, and the transmission structure is capable of converting the rotation of the adjustment member into linear motion in the axial direction of the adjustment member.

[0009] According to the adjustment device for the objective lens described in the embodiments of this application, the outer surface of the adjustment member is provided with an external thread, the mounting member is provided with a first screw hole adapted to the external thread, the external thread and the first screw hole cooperate to form the transmission structure, wherein the limiting member has a second screw hole adapted to the external thread.

[0010] According to the adjustment device for the objective lens described in the embodiments of this application, the positioning part includes three positioning members, which are arranged in a circular array around the central axis of the clearance channel. The distance between the center of the positioning member and the central axis of the clearance channel is equal to the distance between the adjustment member and the central axis of the positioning hole.

[0011] According to the adjustment device for the objective lens described in the embodiments of this application, the end of the positioning member is provided with a limiting groove for preventing the adjustment member from disengaging.

[0012] According to the adjustment device for the objective lens described in the embodiments of this application, the two side walls of the limiting groove are inclined outward, and the extension line of the setting direction of the limiting groove intersects the central axis of the avoidance channel.

[0013] According to the adjustment device for the objective lens described in the embodiments of this application, the end of the supporting member is provided with a mounting hole for placing the positioning member, and the supporting member further includes a fastener that can enter the mounting hole and abut against the positioning member.

[0014] According to the adjustment device for the objective lens described in the embodiments of this application, the positioning member is cylindrical, and the side of the positioning member that abuts against the fastener is provided with a flat surface.

[0015] According to the adjustment device for the objective lens described in the embodiments of this application, the supporting component includes a first bearing member, a second bearing member, and a support member. Both the first bearing member and the second bearing member are provided with clearance holes in their middle portions. The first bearing member and the second bearing member are connected by at least three of the support members. The positioning part is disposed on the first bearing member, and the adjustment reference part is disposed on the second bearing member.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The present application will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a schematic diagram of the structure of the objective lens adjustment device according to an embodiment of this application. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the adjustment device for the objective lens in an embodiment of this application. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the structure of the adjustment device for the objective lens in an embodiment of this application. Figure 3 ;

[0021] Figure 4 This is a structural schematic diagram of the supporting component in an embodiment of this application;

[0022] Figure 5 This is a schematic diagram of the positioning element in an embodiment of this application.

[0023] Reference numerals: Mounting part 100, positioning hole 101, adjusting part 200, adjusting component 210, limiting component 220, first bearing component 310, mounting hole 311, support component 320, second bearing component 330, positioning component 340, limiting groove 341, fastener 350, objective lens 400. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of this application. Preferred embodiments of this application are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of this application, but they should not be construed as limiting the scope of protection of this application.

[0025] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0026] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0028] Reference Figures 1 to 3 This application provides an adjustment device for an objective lens, which includes a support member and a mounting member 100 that can be detachably connected to the support member.

[0029] The supporting member is used for positioning the mounting part 100 and for docking with the optical measuring equipment. One end of the supporting member has an adjustment reference part, and the other end has a positioning part. The supporting member also includes a clearance channel that extends from the middle of one end to the middle of the other end. The clearance channel allows the objective lens 400 to pass through, the adjustment reference part is used for docking and positioning with the optical measuring equipment, and the positioning part is used to define the positioning of the mounting part 100, enabling the mounting part 100 to be quickly positioned within the positioning part.

[0030] The mounting component 100 has a positioning hole 101 in its middle for fixing the objective lens 400. The positioning hole 101 is clearance-fitted with the end of the objective lens 400, allowing the end of the objective lens 400 to be quickly engaged with the positioning hole 101. The mounting component 100 also has three adjustment parts 200, arranged in a circular array around the central axis of the positioning hole 101. Each adjustment part 200 includes an adjustment member 210, the length of which the adjustment member 210 extends between the mounting component 100 and the positioning part is adjustable, and the end of the adjustment member 210 abuts against the positioning part. By independently adjusting the length of the adjustment member 210 extending between the mounting component 100 and the positioning part, the tilt angle and distance between the mounting component 100 and the adjustment reference part can be adjusted as needed.

[0031] In use, the adjustment reference part of the objective lens adjustment device of this application is placed against the optical equipment. After the objective lens 400 engages with the positioning hole 101 of the mounting member 100, the mounting member 100 is placed against the positioning part of the supporting member, and the adjustment member 210 of the adjustment part 200 abuts against the positioning part. The clearance channel is used to avoid the objective lens 400. By adjusting the length of the three adjustment members 210 between the mounting member 100 and the positioning part, the tilt angle and distance of the mounting member 100 relative to the adjustment reference part can be changed, thereby changing the tilt amount and back focus of the objective lens 400 relative to the optical measuring equipment. The entire adjustment device has a simple structure, and the installation and removal of the objective lens 400 are very convenient. In addition, the tilt amount and back focus of the objective lens 400 relative to the optical measuring equipment can be adjusted quickly and over a wide range.

[0032] The adjusting member 210 is configured as three parts, and the adjusting member 210 and the positioning part are in contact at three points, which makes adjustment convenient.

[0033] In some specific embodiments, the adjustment unit 200 further includes a limiting member 220, wherein the adjustment member 210 is adjustable along a direction parallel to the central axis of the positioning hole 101, and the limiting member 220 is used to restrict the movement of the adjustment member 210. After the adjustment member 210 is adjusted so that the objective lens 400 reaches the required tilt and distance, the limiting member 220 restricts the adjustment member 210 to prevent automatic adjustment or accidental activation during use. Setting the adjustment member 210 to be adjustable along a direction parallel to the central axis of the positioning hole 101 makes the adjustment smoother and more continuous, improving the efficiency of the adjustment.

[0034] In some embodiments, the adjusting member 210 is connected to the mounting member 100 via a transmission structure, which converts the rotation of the adjusting member 210 into linear motion in the axial direction. When adjusting the adjusting member 210, rotating it adjusts the length between the adjusting member 210 and the positioning part within the mounting member 100. The transmission structure allows for more precise distance adjustment of the adjusting member 210, and by converting rotation into linear motion, the difficulty of adjustment is reduced.

[0035] In some embodiments, the outer surface of the adjusting member 210 is provided with an external thread, and the mounting member 100 is provided with a first threaded hole adapted to the external thread. The external thread and the first threaded hole cooperate to form a transmission structure. The length adjustment of the adjusting member 210 between the mounting member 100 and the positioning part is realized by the cooperation of the external thread and the internal thread of the first threaded hole. In the embodiments of this application, the end of the adjusting member 210 is provided with a hand-tightening part or a rotating hole for easy rotation.

[0036] In some embodiments, the limiting member 220 has a second threaded hole adapted to the external thread. After the adjusting member 210 is adjusted, the limiting member 220 is rotated to make it tightly fit against the mounting member 100, thereby effectively limiting the rotation of the adjusting member 210. In some specific embodiments, the thread in the second threaded hole has a different rotation direction than the thread in the first threaded hole. For example, if the thread in the second threaded hole is left-handed, then the thread in the first threaded hole is right-handed. In this embodiment, the limiting member 220 is a nut.

[0037] In some embodiments, such as Figure 4 As shown, the positioning part includes three positioning members 340. The three positioning members 340 are arranged in a circular array with the central axis of the clearance channel as the center. The distance between the center of the positioning member 340 and the central axis of the clearance channel is equal to the distance between the center of the adjusting member 210 and the central axis of the positioning hole 101.

[0038] In use, the end of each adjusting member 210 abuts against the positioning member 340, that is, the setting position of the positioning member 340 corresponds one-to-one with the setting position of the adjusting member 210. The positioning member 340 positions and limits the adjusting member 210 to avoid large displacement deviations during the adjustment process.

[0039] In some embodiments, the end of the positioning member 340 is provided with a limiting groove 341 for limiting the disengagement of the adjusting member 210. The end of the adjusting member 210 is positioned by the limiting groove 341 to ensure that the adjusting member 210 will not disengage from the positioning member 340 during the adjustment process.

[0040] In some embodiments, the two side walls of the limiting groove 341 are inclined outward to ensure that the adjusting member 210 can be adjusted in all directions without interfering with the adjusting member 210. Furthermore, the extension line of the setting direction of the limiting groove 341 intersects the central axis of the avoidance channel. This setting can maximize the collinearity between the center of the positioning hole 101 of the mounting member 100 and the central axis of the avoidance channel, so that no matter how the adjusting member 210 is adjusted, the center of the positioning hole 101 is on the central axis of the avoidance channel.

[0041] In some embodiments, such as Figure 4 As shown, the end of the supporting member is provided with a mounting hole 311 for placing the positioning member 340. The supporting member also includes a fastener 350 that can enter the mounting hole 311 and abut against the positioning member 340. The positioning member 340 is positioned through the mounting hole 311, and then the rotation of the positioning member 340 is restricted by the fastener 350, so that the extension line of the setting direction of the limiting groove 341 intersects the central axis of the clearance channel. The fastener 350 is threaded to the supporting member. Specifically, the outer side of the supporting member is provided with a third threaded hole for connecting the fastener 350, the third threaded hole extends through the mounting hole 311, and the outer side of the fastener 350 is provided with an external thread that mates with the third threaded hole. In this embodiment, the fastener 350 is a nut screw.

[0042] In some specific embodiments, such as Figure 5 As shown, the positioning member 340 is cylindrical, and the shape of the corresponding mounting hole 311 is adapted to the shape of the positioning member 340. The positioning member 340 and the mounting hole 311 are clearance-fitted. The side of the positioning member 340 that abuts against the fastener 350 is provided with a flat surface to prevent the surface of the positioning member 340 from protruding due to the pressure of the fastener 350, which would affect the installation and disassembly of the positioning member 340. Making the side of the positioning member 340 that contacts the fastener 350 a flat surface can effectively solve this problem.

[0043] In some embodiments, the supporting component includes a first bearing member 310, a second bearing member 330, and a support member 320. Both the first bearing member 310 and the second bearing member 330 have clearance holes in their middle portions. The first bearing member 310 and the second bearing member 330 are connected by at least three support members 320. A positioning part is disposed on the first bearing member 310, and an adjustment reference part is disposed on the second bearing member 330. The supporting component, composed of the first bearing member 310, the second bearing member 330, and the support member 320, has a simple overall structure, reducing manufacturing difficulty. The adjustment reference part can be a plane, and the clearance holes serve as the ends of the clearance channel. Using the support member 320 as the connecting member between the first bearing member 310 and the second bearing member 330 makes the entire supporting component lighter and the formed clearance channel larger. The first bearing member 310 is connected to the support member 320 by screws, and the second bearing member 330 is also connected to the support member 320 by screws.

[0044] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. An adjustment device for an objective lens, characterized in that: include The support member has an adjustment reference part at one end and a positioning part at the other end. The support member also includes a clearance channel that extends from the middle of one end of the support member to the middle of the other end. The mounting component has a positioning hole in the middle for fixing the objective lens. The mounting component also has three adjustment parts, which are arranged in a circular array with the central axis of the positioning hole as the center. Each adjustment part includes an adjustment member, the length of which the adjustment member enters between the mounting component and the positioning part is adjustable, and the end of the adjustment member abuts against the positioning part.

2. The adjustment device for an objective lens according to claim 1, characterized in that: The adjusting part further includes a limiting member, wherein the adjusting member is adjustable along a direction parallel to the central axis of the positioning hole, and the limiting member is used to restrict the movement of the adjusting member.

3. The adjustment device for an objective lens according to claim 2, characterized in that: The adjusting member is connected to the mounting member through a transmission structure, which can convert the rotation of the adjusting member into linear motion in the axial direction of the adjusting member.

4. The adjustment device for an objective lens according to claim 3, characterized in that: The outer surface of the adjusting member is provided with an external thread, and the mounting member is provided with a first threaded hole adapted to the external thread. The external thread and the first threaded hole cooperate to form the transmission structure, wherein the limiting member has a second threaded hole adapted to the external thread.

5. The adjustment device for an objective lens according to claim 1, characterized in that: The positioning part includes three positioning components, which are arranged in a circular array around the central axis of the clearance channel. The distance between the center of each positioning component and the central axis of the clearance channel is equal to the distance between the adjusting component and the central axis of the positioning hole.

6. The adjustment device for an objective lens according to claim 5, characterized in that: The end of the positioning member is provided with a limiting groove for preventing the adjusting member from disengaging.

7. The adjustment device for an objective lens according to claim 6, characterized in that: The two side walls of the limiting groove are inclined outward, and the extension line of the setting direction of the limiting groove intersects the central axis of the avoidance channel.

8. The adjustment device for an objective lens according to claim 7, characterized in that: The end of the supporting member is provided with a mounting hole for placing the positioning member, and the supporting member also includes a fastener that can enter the mounting hole and abut against the positioning member.

9. The adjustment device for an objective lens according to claim 8, characterized in that: The positioning element is cylindrical, and a flat surface is provided on the side of the positioning element that abuts against the fastener.

10. The adjustment device for an objective lens according to claim 1, characterized in that: The supporting component includes a first bearing member, a second bearing member, and a support member. Both the first bearing member and the second bearing member have clearance holes in their middle parts. The first bearing member and the second bearing member are connected by at least three of the support members. The positioning part is disposed on the first bearing member, and the adjustment reference part is disposed on the second bearing member.

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