Optical imaging element adjusting device, optical analysis device and analysis system

Abstract

The optical imaging element adjusting device comprises an adjusting mechanism and an adjusting mechanism, wherein the adjusting mechanism comprises a focusing assembly and an angle adjusting assembly; the focusing assembly can be detachably connected with an imaging element to be adjusted; the angle adjusting assembly is detachably connected with the lens cone assembly and the focusing assembly, and relative fixation or relative movement between the lens cone assembly and the focusing assembly can be achieved by adjusting the angle adjusting assembly; when the angle adjusting assembly is adjusted until the lens cone assembly and the focusing assembly are relatively fixed, the focusing assembly is adjusted to drive the to-be-adjusted imaging element to horizontally move relative to the lens cone assembly, the distance between the to-be-adjusted imaging element and the lens cone is adjusted, and focusing processing of the to-be-adjusted imaging element is achieved. The angle adjusting assembly is adjusted until the lens cone assembly moves relative to the focusing assembly, and the focusing assembly is rotated to cooperatively drive the to-be-adjusted imaging element to rotate relative to the lens cone assembly, so that the observation range of the to-be-adjusted imaging element completely covers the target sample, and therefore, the integrity and definition of the to-be-adjusted imaging element in image acquisition of the target sample are improved.

Description

Technical Field

[0001] The present application relates to the field of focusing technology, and in particular to an optical imaging element adjustment device, an optical analysis device and an analysis system. Background Art

[0002] With the rapid development of industrial automation, optical imaging technology and machine vision have been widely used in production and manufacturing, quality inspection, logistics, medicine and scientific research, and are specifically used for measuring, judging and defect detection of target parts.

[0003] Different optical lenses are required for different measurement scenarios in the optical system. At the same time, in order to observe clear and accurate images, it is often necessary to adjust the distance between the camera and the lens, that is, to adjust the back focal length of the optical module to meet the image clarity requirements. The traditional adjustment method is to add or subtract gaskets in front of the camera, or directly move the camera position by machining. Since machining and assembly will produce certain dimensional errors, the traditional adjustment method has low accuracy and a more complicated adjustment process. In the process of adjustment, it is also easy to cause the observation window of the square CCD to tilt, resulting in a tilted image observed on the observation screen, affecting the observation range and effect.

[0004] Therefore, it is necessary to provide an improved optical imaging element adjustment device to solve at least one of the above-mentioned prior art problems. Summary of the invention

[0005] The present application provides an optical imaging element adjustment device, comprising a lens barrel assembly and an adjustment mechanism; the adjustment mechanism comprises a focusing assembly and an angle adjustment assembly, the focusing assembly can be detachably connected to the imaging element to be adjusted; the angle adjustment assembly is detachably connected to the lens barrel assembly and the focusing assembly, respectively, and adjusting the angle adjustment assembly can achieve relative fixation or relative movement between the lens barrel assembly and the focusing assembly; when the angle adjustment assembly is adjusted to the point where the lens barrel assembly and the focusing assembly are relatively fixed, adjusting the focusing assembly can drive the imaging element to be adjusted to move horizontally relative to the lens barrel assembly; when the angle adjustment assembly is adjusted to the point where the lens barrel assembly and the focusing assembly are relatively movable, rotating the focusing assembly can cooperatively drive the imaging element to be adjusted to rotate relative to the lens barrel assembly.

[0006] Optionally, the second end of the focusing assembly is provided with a butt joint; the first end of the lens barrel assembly and the first end of the angle adjustment assembly are respectively arranged on both sides of the butt joint, and the first end of the lens barrel assembly abuts against the butt joint; when the angle adjustment assembly is adjusted to be tightly connected with the butt joint, the lens barrel assembly and the focusing assembly are relatively fixed; otherwise, the lens barrel assembly and the focusing assembly are relatively movable.

[0007] Optionally, the focusing assembly includes a coaxially arranged focusing member, a transmission assembly and an extension member; the focusing member is sleeved on the outside of the transmission assembly, the extension member is sleeved on the inside of the transmission assembly, and the first end of the extension member is used for detachably connecting the imaging element to be adjusted.

[0008] Optionally, the transmission assembly includes a coaxially arranged connecting member, a rotating member and a movable follower; the connecting member is sleeved on the outer side of the extension member, the connecting member is sleeved on the inner side of the rotating member, and the focusing member is fixedly sleeved on the outer side of the rotating member; the first end of the movable follower is in transmission cooperation with the connecting member and the rotating member, and the second end of the movable follower is detachably fixedly connected to the extension member.

[0009] Optionally, the connecting member is provided with a linear limiting track parallel to its central axis, the rotating member is provided with a first limiting track at an angle to the linear limiting track, and the first end of the movable follower passes through the linear limiting track and is placed in the first limiting track; by rotating the focusing member to drive the rotating member to rotate, the movable follower can cooperate with the first limiting track and the linear limiting track to drive the extension member to reciprocate horizontally relative to the lens barrel assembly.

[0010] Optionally, the abutment portion is provided at the second end of the connecting member, and the first end of the lens barrel assembly is sleeved on the outer wall of the connecting member and abuts against the abutment portion.

[0011] Optionally, a limiting protrusion is provided on the outer wall of the connecting member, one end of the limiting protrusion is abutted against the first end of the angle adjustment component; the other end of the limiting protrusion is tightly connected with the second end of the rotating member.

[0012] Optionally, a cross-sectional height of the limiting protrusion is greater than or equal to a cross-sectional height of the rotating member.

[0013] Optionally, the angle adjustment assembly includes an adjusting ring, a first end of the adjusting ring is provided with a limiting portion, and the limiting portion abuts against the limiting protrusion; the second end of the adjusting ring is detachably connected to the lens barrel assembly; by adjusting the adjusting ring, the distance between the limiting portion and the abutting portion can be adjusted.

[0014] Optionally, the second end of the adjustment ring is threadedly connected to the lens barrel assembly, and when the lens barrel assembly and the focusing assembly are in a relatively fixed state, a first axial thread length of the second end of the adjustment ring threadedly mating with the lens barrel assembly is less than a length of the clearance space; when the lens barrel assembly and the focusing assembly are in a relatively movable state, a second axial thread length of the second end of the adjustment ring threadedly mating with the lens barrel assembly is less than the first axial thread length.

[0015] Optionally, the angle adjustment assembly also includes a first limiting structure, which is protruding on the inner wall of the adjustment ring; when the angle adjustment assembly, the lens barrel assembly and the focusing assembly are in a cooperatively connected state, a first accommodating space is formed between the adjustment ring, the lens barrel assembly and the connecting member; one end of the first limiting structure is accommodated in the first accommodating space, for limiting the abutment with the abutment portion.

[0016] Optionally, the first limiting structure and the abutment portion are in linear abutment.

[0017] Optionally, the connecting member includes a second limiting structure, the second limiting structure is protruded from the outer wall of the connecting member, and the second limiting structure is used to abut against the first end of the rotating member.

[0018] Optionally, the second limiting structure includes a second limiting member, and one side of the second limiting member abuts against the first end of the rotating member.

[0019] Optionally, when the focusing member, the rotating member and the connecting member are in a cooperatively connected state, a second accommodation space is formed between the focusing member, the rotating member and the connecting member, and part of the second limiting member is accommodated in the second accommodation space;

[0020] And / or, one side of the second limiting member is linearly abutted against the first end of the rotating member.

[0021] Optionally, a stopper is provided at the first end of the focusing member, and the stopper abuts against an outer wall of the connecting member; and the second end of the focusing member abuts against an outer wall of the rotating member.

[0022] Optionally, the focusing member includes a yielding portion, which is recessed in the inner wall of the focusing member; when the focusing member is in a mating connection with the rotating member, a yielding length of the yielding portion covers a moving path of the moving follower;

[0023] And / or, the cross-sectional height of the movable follower is not higher than the cross-sectional height of the first limiting track.

[0024] Optionally, at least one mounting portion is provided on the outer wall of the extension piece, and the mounting portion includes a mounting hole and a mounting position; the mounting position is recessed on the outer wall of the extension piece, and the mounting hole is provided in the mounting position and passes through the inner wall of the extension piece; the movable follower is provided with a connecting through hole, and the second end of the movable follower can be accommodated in the mounting position, and the connecting through hole and the mounting hole are fastened and connected by a fastener.

[0025] Optionally, the extension piece includes a reinforcement portion, the setting position of the reinforcement portion corresponds to the setting position of the mounting position, and protrudes from the inner wall of the extension piece, and the mounting hole passes through the reinforcement portion; and / or the cross-sectional height of the fastener is not higher than the cross-sectional height of the movable follower.

[0026] Optionally, at least one positioning hole is provided at the first end of the connecting member, and the positioning member abuts against the extension member after passing through the positioning hole.

[0027] Optionally, the extension piece includes a filter element mounting position, which is recessed in the inner wall of the extension piece and is used for placing the filter element.

[0028] On the other hand, the present application also provides an optical analysis device, comprising the imaging element to be adjusted and the optical imaging element adjustment device as described above, wherein the imaging element to be adjusted is detachably fixedly connected to the focusing assembly.

[0029] On the other hand, the present application also provides an optical analysis system, comprising an image analysis device and the optical analysis apparatus as described above; the image analysis device is communicatively connected to the imaging element to be adjusted; the imaging element to be adjusted is used to collect image information of a target sample and send it to the image analysis device, and the image analysis device is capable of performing image analysis processing on the image information of the target sample.

[0030] The optical imaging element adjustment device provided in the present application has at least the following technical effects:

[0031] The optical imaging element adjustment device in the present application comprises: a barrel assembly and an adjustment mechanism; the adjustment mechanism comprises a focusing assembly and an angle adjustment assembly, the focusing assembly is used to connect with the imaging element to be adjusted; the angle adjustment assembly is detachably connected to the barrel assembly and the focusing assembly respectively, and adjusting the angle adjustment assembly can realize relative fixation or relative movement between the barrel assembly and the focusing assembly; when the angle adjustment assembly is adjusted to the point where the barrel assembly and the focusing assembly are relatively fixed, adjusting the focusing assembly can drive the imaging element to be adjusted to move horizontally relative to the barrel assembly; when the angle adjustment assembly is adjusted to the point where the barrel assembly and the focusing assembly are relatively movable, rotating the focusing assembly can cooperatively drive the imaging element to be adjusted to rotate relative to the barrel assembly, and then by adjusting the angle adjustment assembly, it can be realized The present invention provides a relatively movable connection mode between the lens barrel assembly and the focusing assembly, and then the adjustment mechanism can be adjusted to rotate relative to the lens barrel assembly to drive the adjustment of the observation angle of the imaging element to be adjusted relative to the end of the lens barrel assembly, so that the observation range of the imaging element to be adjusted completely covers the target sample, thereby improving the accuracy of observation and image acquisition of the imaging element to be adjusted; by adjusting the angle adjustment assembly, a relatively fixed connection mode between the lens barrel assembly and the focusing assembly can be achieved, and then by adjusting the adjustment mechanism, the imaging element to be adjusted can be driven to move horizontally relative to the lens barrel assembly, thereby adjusting the distance between the imaging element to be adjusted and the lens barrel assembly, thereby achieving the focusing processing of the imaging element to be adjusted and improving the imaging clarity of the imaging element to be adjusted. The present application realizes the integration of the observation angle adjustment and focusing of the imaging element to be adjusted relative to the end of the lens barrel assembly by setting the adjustment mechanism, and the structure is compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 : A schematic diagram of the overall structure of an optical imaging element adjustment device provided in an embodiment of the present application;

[0034] Figure 2 : A schematic diagram of a connection state between an optical imaging element adjustment device and an imaging element to be adjusted provided in an embodiment of the present application;

[0035] Figure 3 : Schematic diagram of the states in which the adjustment ring provided in the embodiment of the present application cooperates with the lens barrel assembly and the rotating member respectively;

[0036] Figure 4: A schematic diagram of a portion of the structure of the focusing assembly and the lens barrel assembly provided in an embodiment of the present application;

[0037] Figure 5 : A cross-sectional view of an optical imaging element adjustment device provided in an embodiment of the present application;

[0038] Figure 6 : A schematic diagram of the structure of a connector provided in an embodiment of the present application;

[0039] Figure 7 : A cross-sectional view of a connector provided in an embodiment of the present application;

[0040] Figure 8 : A schematic diagram of the structure of a rotating member provided in an embodiment of the present application;

[0041] Fig. 9 : A schematic diagram of the structure of the cooperation between the mobile follower and the extension member provided in the embodiment of the present application;

[0042] Fig.10 : A cross-sectional view of an extension member provided in an embodiment of the present application;

[0043] Fig.11 : A cross-sectional view of a focusing member provided in an embodiment of the present application;

[0044] Fig.12 : A cross-sectional view of a lens barrel assembly provided in an embodiment of the present application;

[0045] Fig.13 : A cross-sectional view of an adjustment ring provided in an embodiment of the present application;

[0046] Among them, the reference numerals in the figure correspond to:

[0047] 1-lens barrel assembly, 2-focusing assembly, 3-angle adjustment assembly, 10-CCD camera, 11-matching part, 12-sleeve shaft, 13-connecting flange, 14-optical element mounting part, 20-transmission assembly, 21-focusing part, 22-extension part, 23-connecting part, 24-rotating part, 25-moving follower, 31-adjusting ring, 32-first limiter, 131-adjustable connecting through hole, 211-fixing hole, 212-blocking part, 213-yielding part, 221-mounting part, 222-mounting hole, 223-mounting position, 224-adding Strong part, 225-initial installation mark, 231-straight limit track, 232-abutment part, 233-limiting structure, 234-limiting protrusion, 235-engaging shaft, 236-positioning hole, 241-first limit track, 251-connecting through hole, 311-limiting part, 312-connecting part, 313-first limit installation structure, 2321-first abutment surface, 2322-second abutment surface, 2331-second limit installation structure, 2332-second limit member, 30-first accommodating space, 40-make way space, 50-second accommodating space. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0049] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0050] The embodiments are described below with reference to the accompanying drawings, which do not limit the application contents described in the claims in any way.

[0051] See also Figure 1 , 3-13, an embodiment of the present application provides an optical imaging element adjustment device, including a barrel assembly 1 and an adjustment mechanism; the barrel assembly 1 and the adjustment mechanism are arranged on the same optical axis, the adjustment mechanism includes a focusing assembly 2 and an angle adjustment assembly 3, the focusing assembly 2 can be detachably connected to the imaging element to be adjusted; the angle adjustment assembly 3 is detachably connected to the barrel assembly 1 and the focusing assembly 2, respectively, and adjusting the angle adjustment assembly 3 can achieve relative fixation or relative movement between the barrel assembly 1 and the focusing assembly 2; when the angle adjustment assembly 3 is adjusted to the barrel assembly 1 and the focusing assembly 2 to be relatively fixed, adjusting the focusing assembly 2 can drive the imaging element to be adjusted to move horizontally relative to the barrel assembly 1; when the angle adjustment assembly 3 is adjusted to the barrel assembly 1 and the focusing assembly 2 to be relatively movable, it can cooperatively drive the imaging element to be adjusted to rotate relative to the barrel assembly 1.

[0052] In the embodiment of the present application, by adjusting the relatively movable connection between the angle adjustment component 3 and the barrel assembly 1 and the focusing component 2, the adjustment mechanism 2 can be rotated relative to the barrel assembly 1 to drive the adjustment of the observation angle of the imaging element to be adjusted relative to the end of the barrel assembly 1, so that the observation range of the imaging element to be adjusted completely covers the target sample, and the accuracy of observation and image acquisition of the imaging element to be adjusted is improved; by adjusting the relatively fixed connection between the angle adjustment component 3 and the barrel assembly 1 and the focusing component 2, the adjustment mechanism 2 can be driven to move the imaging element to be adjusted horizontally relative to the barrel assembly 1, and the distance between the imaging element to be adjusted and the barrel is adjusted, thereby realizing the focusing processing of the imaging element to be adjusted, and improving the imaging clarity of the imaging element to be adjusted. In this way, the present application can realize the relatively fixed or relatively movable connection mode between the barrel assembly 1 and the focusing component 2 by setting the angle adjustment component 3, and then realize the integration of focusing and angle adjustment of the imaging element to be adjusted by adjusting the adjustment mechanism 2, with compact structure and simple operation, and improved adjustment efficiency.

[0053] Specifically, Figure 2, the imaging element to be adjusted can be a CCD camera 10, which is arranged with the focusing assembly 2, the adjusting assembly 3 and the lens barrel assembly 1 on the same optical axis in sequence, and the CCD camera 10 is used to collect image information of the target sample. When the angle adjustment assembly 3 is adjusted to the lens barrel assembly 1 and the focusing assembly 2 are relatively fixed, by adjusting the adjusting mechanism 2, the CCD camera 10 can be driven to move back and forth along the optical axis direction relative to the lens barrel assembly 1, and the distance between the CCD camera 10 and the lens barrel assembly 1 is adjusted, and the distance between the lens barrel assembly 1 and the imaging plane of the CCD camera 10 is changed, and the focusing process of the CCD camera 10 is realized to ensure that the CCD camera 10 can clearly capture the graphic information of the target sample, thereby improving the imaging quality of the CCD camera. When the angle adjustment assembly 3 is adjusted to the lens barrel assembly 1 and the focusing assembly 2 are relatively active, by rotating the adjusting mechanism 2, the imaging element to be adjusted can be driven to rotate relative to the lens barrel assembly 1, thereby adjusting the observation angle of the observation window of the imaging element to be adjusted, thereby achieving that the observation window of the CCD camera 10 matches the placement angle of the target sample, and improving the convenience of angle adjustment.

[0054] In other embodiments, the imaging element to be adjusted may be other optical cameras such as a CMOS camera.

[0055] In other embodiments, the imaging element to be adjusted may also be an optical lens, or an optical element such as an optical lens assembly, or may be a sensor such as a position sensitive detector PSD, etc.

[0056] See also Figure 5-7 In some embodiments, the second end of the focusing assembly 2 is provided with a butt joint 232; the first end of the lens barrel assembly 1 and the first end of the angle adjustment assembly 3 are respectively arranged on both sides of the butt joint 232, and the first end of the lens barrel assembly 1 is butted against the butt joint 232; when the angle adjustment assembly 3 is adjusted to be tightly connected with the butt joint 232, the lens barrel assembly 1 and the focusing assembly 2 are relatively fixed; otherwise, the lens barrel assembly 1 and the focusing assembly 2 are relatively movable.

[0057] In the embodiment of the present application, by providing an abutment portion 232 at the second end of the focusing assembly 2, it is convenient to realize the first end of the barrel assembly 1 and the first end of the angle adjustment assembly 3 being tightly fitted with the two sides of the abutment portion 232 respectively by rotating the angle adjustment assembly 3, thereby ensuring the stability and reliability of the tight fit between the barrel assembly 1 and the focusing assembly 2.

[0058] Specifically, the first end of the lens barrel assembly 1 is used to be detachably connected to the focusing assembly 2 via the angle adjustment assembly 3, and the second end of the lens barrel assembly 1 can be used to be connected to a device carrying a target sample.

[0059] It should be noted that the first end of the lens barrel assembly 1 is an end facing the focusing assembly 2, and the second end of the lens barrel assembly 1 is an end away from the focusing assembly 2; the first end of the focusing assembly 2 is an end facing the angle adjustment assembly 3, and the second end of the focusing assembly 2 is an end facing the lens barrel assembly 1; the first end of the angle adjustment assembly 3 is an end for cooperating with the abutment 232 of the focusing assembly 2, and the second end of the angle adjustment assembly 3 is an end for detachably connecting with the lens barrel assembly 1.

[0060] The first end of the lens barrel assembly 1 is threadedly connected to the second end of the angle adjustment assembly 3. When the angle adjustment assembly 3 is adjusted to have a first thread fitting length with the lens barrel assembly 1, the angle adjustment assembly 3 is tightly connected to the abutment portion 232; when the angle adjustment assembly 3 is adjusted to have a second thread fitting length with the lens barrel assembly 1 that is less than the first thread fitting length, the angle adjustment assembly 3 is not tightly connected to the abutment portion 232.

[0061] Specifically, when the angle adjustment component 3 is tightly connected with the abutment portion 232, there is a first thread fitting length between the lens barrel assembly 1 and the angle adjustment component 3. By loosening the angle adjustment component 3, the angle adjustment component 3 moves relative to the lens barrel assembly 1 toward the focusing component 2, that is, the thread fitting length between the angle adjustment component 3 and the lens barrel assembly 1 is shortened to be less than the first thread fitting length. At this time, the angle adjustment component 3 is not tightly connected with the abutment portion 232, so that the first end of the angle adjustment component 3 is separated from the abutment portion 232, so that the lens barrel assembly 1 and the focusing assembly 2 are in an active connection state.

[0062] See also Figure 3 In some embodiments, the focusing assembly 2 includes a coaxially arranged focusing member 21, a transmission assembly 20 and an extension member 22; the focusing member 21 is sleeved on the outer side of the transmission assembly 20, the extension member 22 is sleeved on the inner side of the transmission assembly 20, and the first end of the extension member 22 is used for detachably connecting the imaging element to be adjusted.

[0063] See also Figure 3-5 The transmission assembly 20 includes a coaxially arranged connecting member 23, a rotating member 24 and a moving follower 25; the connecting member 23 is sleeved on the outer side of the extension member 22, the connecting member 23 is sleeved on the inner side of the rotating member 24, the focusing member 21 is fixedly sleeved on the outer side of the rotating member 24, the first end of the moving follower 25 is in transmission cooperation with the connecting member 23 and the rotating member 24, and the second end of the moving follower 25 is detachably fixedly connected to the extension member 22.

[0064] The first ends of the focus member 21, the extension member 22, the connection member 23, and the rotating member 24 are respectively the ends thereof away from the lens barrel assembly 1; the second ends of the focus member 21, the extension member 22, the connection member 23, and the rotating member 24 are respectively the ends thereof close to the lens barrel assembly 1. The first end of the mobile follower 25 is the end thereof away from the extension member 22; the second end of the mobile follower 25 is the end thereof close to the extension member 22.

[0065] Preferably, the connecting member 23 and the rotating member 24 can both be cylindrical structures, that is, the connecting member 23 can be a connecting tube, the rotating member 24 can be a rotating tube, the focusing member 21 is a focusing ring, the rotating tube is sleeved on the outside of the connecting tube, and the focusing ring is fixedly sleeved on the outside of the rotating tube.

[0066] In some embodiments, the outer surface of the focusing member 21 is provided with anti-skid patterns, which are evenly distributed along the outer surface of the focusing member 21, which is convenient for the operator to rotate and has an anti-skid effect, thereby improving the convenience of adjustment. The anti-skid patterns may be in the shape of strips or the like.

[0067] See also Fig.11 At least one fixing hole 211 is provided on the focusing member 21, and the fixing hole 211 is provided through the inner wall of the focusing member 21; the focusing member 21 is sleeved on the rotating member 24, and a fastener passes through the fixing hole 211 and is pressed against the rotating member 24, thereby fixing the focusing member 21 and the rotating member 24 together.

[0068] Specifically, the fixing hole 211 is a threaded hole, and the fastener may be a set screw. After the set screw is threadedly connected to the threaded hole, the portion of the set screw protruding from the threaded hole can abut against the outer wall of the rotating member 24, thereby ensuring the strength of the fixed connection between the focusing member 21 and the rotating member 24.

[0069] In other embodiments, matching threaded holes are provided on the outer wall of the rotating member 24, and the positions and number of the matching threaded holes are respectively matched with the positions and number of the fixing holes 211 on the focusing member 21; the fasteners are threadedly connected with the fixing holes 211 and the matching threaded holes in sequence, thereby fixing the focusing member 21 to the outer wall of the rotating member 24.

[0070] See also Figure 6 , Figure 8 and Figure 5The connecting member 23 is provided with a linear limiting track 231 parallel to its central axis, the rotating member 24 is provided with a first limiting track 241 which is at an angle to the linear limiting track 231, and the first end of the movable follower 25 passes through the linear limiting track 231 and is placed in the first limiting track 241; by rotating the focusing member 21 to drive the rotating member 24 to rotate, the movable follower 25 can cooperate with the first limiting track 241 and the linear limiting track 231 to drive the extension member 22 to reciprocate horizontally relative to the lens barrel assembly 1, thereby driving the imaging element to be adjusted to reciprocate horizontally relative to the lens barrel assembly 1.

[0071] Specifically, the linear limiting track 231 is a straight groove opened along the axial direction of the connecting member 23 and parallel to the axis of the connecting member 23 . The groove width of the linear limiting track 231 is matched with the shaft diameter of the movable follower 25 .

[0072] The first limiting track 241 has a helical pitch angle. The angle between the first limiting track 241 and the linear limiting track 231 is sufficient to drive the extension member 22 to move back and forth horizontally relative to the lens barrel assembly 1 when the focus member 21 is rotated, and is not limited here.

[0073] In the embodiment of the present application, the second end of the mobile follower 25 is fixedly set on the outer wall of the extension member 22, and the first end of the mobile follower 25 passes through the linear limit track 231 and is placed in the first limit track 241. The rotating member 24 is driven to rotate by rotating the focusing member 21. With the cooperation of the first limit track 241 and the linear limit track 231, the moving trajectory of the mobile follower 25 is constrained to make reciprocating linear movement along the linear limit track 231.

[0074] Optionally, three linear limiting rails 231 are equidistantly arranged in the circumferential direction of the connecting member 23; three first limiting rails 241 are arranged on the rotating member 24, and the first limiting rails 241 are arranged in a one-to-one correspondence with the linear limiting rails 231; three moving followers 25 are installed on the extension member 22, and the setting position of the moving followers 25 corresponds to the linear limiting rails 231; each moving follower 25 passes through its respective matching linear limiting rail 231 and is placed in the first limiting rail 241. The rotation of the rotating member 24 can push the moving follower 25 in each first limiting rail 241 to move horizontally along the linear limiting rail 231, thereby improving the stability and efficiency of the horizontal movement of the extension member 22. The number of linear limiting rails 231 can be set as needed and is not limited here.

[0075] See also Figure 5-7 and Fig.12 In some embodiments, the second end of the connecting member 23 is provided with an abutting portion 232 , and the first end of the lens barrel assembly 1 is sleeved on the outer wall of the connecting member 23 and abuts against the abutting portion 232 .

[0076] Specifically, the second end of the connecting member 23 is provided with a locking shaft 235 , and the first end of the lens barrel assembly 1 is a sleeve shaft 12 , which can be sleeved on the outer wall of the locking shaft 235 .

[0077] Specifically, the abutment portion 232 is an abutment convex shaft, which is arranged adjacent to the locking shaft 235. When the angle adjustment component 3 is in cooperation with the lens barrel component 1 and the connecting piece 23, the sleeve shaft 12 of the lens barrel component 1 can be sleeved on the locking shaft 235, and the first abutment surface 2321 of the abutment convex shaft abuts against the end surface of the sleeve shaft 12, and the second abutment surface 2322 of the abutment convex shaft abuts against the angle adjustment component 3.

[0078] See also Figure 6 and Figure 5 A limiting protrusion 234 is provided on the outer wall of the connecting member 23 , one end of the limiting protrusion 234 abuts against the first end of the angle adjustment assembly 3 ; the other end of the limiting protrusion 234 abuts against the second end of the rotating member 24 .

[0079] Specifically, the limiting protrusion 234 is a limiting protrusion arranged on the outer wall of the connecting member 23, and the abutting portion 232 is an abutting protrusion arranged on the outer wall of the connecting member 23, and the abutting portion 232 is connected to the limiting protrusion 234, and the shaft diameter of the limiting protrusion is smaller than the shaft diameter of the abutting protrusion, thereby forming a step structure between the limiting protrusion and the abutting protrusion. When the second end of the angle adjustment component 3 is tightened with the lens barrel component 1, the first end of the angle adjustment component 3 can be placed on the step structure, and the first end of the angle adjustment component 3 is respectively abutted with the limiting protrusion and the abutting protrusion, thereby ensuring the tightness and reliability of the angle adjustment component 3 and the connecting member 23.

[0080] In some embodiments, the cross-sectional height of the limiting protrusion 234 is greater than or equal to the cross-sectional height of the rotating member 24 .

[0081] In the embodiment of the present application, when the rotating member 24 and the connecting member 23 are in cooperation, the end side of the rotating member 24 can abut against the end face of the limiting protrusion 234. By setting the cross-sectional height of the limiting protrusion 234 to be higher than or equal to the cross-sectional height of the rotating member 24, the angle adjustment component 3 can be adjusted to move relative to the lens barrel assembly 1 toward the side where the rotating member 24 is located, thereby avoiding interference between the angle adjustment component 3 and the rotating member 24 during movement, limiting the movement of the angle adjustment component 3, and thus ensuring the smoothness of the movement process of the angle adjustment component 3.

[0082] The adjustment mode of the focusing assembly 2 can be controlled and realized by an automatic focusing system in addition to the manual adjustment mode. Specifically, the system adjusts the distance between the CCD camera 10 and the lens barrel assembly 1 by a motor drive, and automatically adjusts the focal length in combination with a feedback mechanism (such as contrast detection) until the image on the imaging surface of the CCD camera 10 meets the preset definition requirement, thereby completing the focusing process of the CCD camera 10. The adjustment mode of the angle adjustment assembly 3 can be controlled and realized by an automatic angle adjustment system in addition to the manual adjustment mode. Specifically, the system drives the adjusting ring 31 to rotate to a preset loose state by a motor drive, and then drives the focusing assembly 2 to rotate relative to the lens barrel assembly 1 by controlling the rotating mechanism, and automatically adjusts the rotation angle in combination with the feedback mechanism until the observation range of the observation window of the CCD camera 10 completely covers the target sample, and the observation window of the CCD camera 10 is matched with the placement angle of the target sample without changing the focal length of the CCD camera 10.

[0083] See also Figure 3 , 13 Combined with Figure 5-6 In some embodiments, the angle adjustment assembly 3 includes an adjustment ring 31, a first end of the adjustment ring 31 is provided with a limiting portion 311, and the limiting portion 311 abuts against the limiting protrusion 234; the second end of the adjustment ring 31 is detachably connected to the lens barrel assembly 1; by adjusting the adjustment ring 31, the distance between the limiting portion 311 and the abutting portion 232 can be adjusted.

[0084] Specifically, the limiting portion 311 is a limiting shaft protruding from the inner wall of the adjusting ring 31. The first end of the adjusting ring 31 is an end away from the lens barrel assembly 1; the second end of the adjusting ring 31 is an end close to the lens barrel assembly 1.

[0085] In the embodiment of the present application, a limiting portion 311 is provided at the first end of the adjusting ring 31. During the process of tightening the adjusting ring 31, the limiting portion 311 can abut against the step structure formed by the limiting protrusion 234 and the abutting portion 232, thereby driving the abutting portion 232 of the connecting member 23 to move toward the lens barrel assembly 1, and finally making the lens barrel assembly 1 tightly connected with the focusing assembly 2, thereby realizing the assembly of the focusing assembly 2 with the lens barrel assembly 1, and improving the reliability of the cooperation between the adjusting ring 31 and the connecting member 23.

[0086] See also Figure 5 and Fig.13 In some embodiments, a clearance space 40 is provided between the limiting portion 311 and the focusing member 21 , and when the adjusting ring 31 is adjusted, the limiting portion 311 can be placed in the clearance space 40 .

[0087] In the embodiment of the present application, a clearance space 40 is provided between the limiting portion 311 and the focusing member 21. When the adjusting ring 31 is adjusted to move relative to the lens barrel assembly 1 toward the focusing assembly 2, the limiting portion 311 of the adjusting ring 31 can be placed in the clearance space 40, providing space for the movement of the adjusting ring 31, thereby preventing the adjusting ring 31 from interfering with the focusing member 21 during the movement and restricting its movement, causing the lens barrel assembly 1 and the focusing assembly 2 to be in a pressed state, making it impossible to achieve active cooperation between the lens barrel assembly 1 and the focusing assembly 2, and making it impossible for the device to achieve angular rotation of the focusing assembly 2 relative to the lens barrel assembly 1 in coordination with the imaging element to be adjusted.

[0088] See also Figure 12-13 and Figure 5 The second end of the adjusting ring 31 is threadedly connected to the lens barrel assembly 1. The second end of the adjusting ring 31 is provided with a connecting portion 312; the outer periphery of the lens barrel assembly 1 is protrudingly provided with a matching portion 11, and the matching portion 11 is threadedly connected to the connecting portion 312.

[0089] Specifically, the connecting portion 312 is an internal thread provided on the inner wall of the adjusting ring 31, and the matching portion 11 is a matching convex shaft provided on the outer periphery of the lens barrel assembly 1, and the upper surface of the matching convex shaft is provided with an external thread, and the connecting portion 312 is threadedly matched with the matching portion 11. The matching convex shaft is provided adjacent to the sleeve shaft 12.

[0090] In the embodiment of the present application, an internal thread is provided on the inner wall of the second end of the adjusting ring 31, and a matching convex shaft with an external thread is protruded on the outer periphery of the lens barrel assembly 1, so that the matching portion 11 and the connecting portion 312 can be threadedly connected; an abutting convex shaft is protruded on the outer periphery of the connecting member 23, and when the adjusting ring 31 is tightened, the first abutting surface 2321 of the abutting convex shaft abuts against the sleeve shaft 12, and the second abutting surface 2322 of the abutting convex shaft abuts against the side wall of the limiting portion 311, thereby ensuring the reliability of the relative fixed matching between the lens barrel assembly 1 and the connecting member 23. When the adjusting ring 31 is adjusted to make the focusing assembly and the lens barrel assembly 1 relatively movable, the side wall of the limiting portion 311 is separated from the second abutting surface 2322 of the abutting convex shaft, and then the transmission assembly 20 is adjusted by rotating the focusing member 21 to coordinate the rotation angle of the imaging element to be adjusted relative to the lens barrel assembly 1, so that the observation angle of the observation window of the imaging element to be adjusted can be adjusted, thereby improving the convenience of adjusting the angle of the imaging element to be adjusted. When the adjusting ring 31 is completely released from the threaded connection with the lens barrel assembly 1 , the sleeve shaft 12 of the lens barrel assembly 1 can be separated from the first abutting surface 2321 of the abutting convex shaft, thereby realizing the separation of the adjusting mechanism and the lens barrel assembly 1 .

[0091] Optionally, a scale is provided on the outer wall of the adjustment ring 31, through which the rotation angle of the adjustment ring 31 can be accurately and directly observed, thereby determining the displacement of the extension piece 22 relative to the lens barrel assembly 1, thereby improving the accuracy of adjustment.

[0092] When the lens barrel assembly 1 and the focusing assembly 2 are relatively fixed, the first axial thread length of the second end of the adjusting ring 31 threadedly matched with the lens barrel assembly 1 is less than the length of the clearance space 40; when the lens barrel assembly 1 and the focusing assembly 2 are relatively movable, the second axial thread length of the second end of the adjusting ring 31 threadedly matched with the lens barrel assembly 1 is less than the first axial thread length. In this way, the clearance space 40 provides a space for accommodating the adjusting ring 31 when the adjusting ring 31 moves rightward to the relative movement of the lens barrel assembly 1 and the focusing assembly 2, or to release the threaded match between the adjusting ring 31 and the lens barrel assembly 1, so as to realize the relative movement or separation between the adjusting mechanism as a whole and the lens barrel assembly 1. That is, the clearance space 40 can satisfy the relative movement or separation between the adjusting mechanism and the lens barrel assembly 1 realized by adjusting the adjusting ring 31. It can be understood that when the lens barrel assembly 1 and the focusing assembly 2 are relatively movable, and the focusing assembly 2 is rotated to drive the imaging element to be adjusted to adjust the angle, the adjusting ring 31 and the lens barrel assembly 1 are still threadedly matched. When the threaded match between the adjusting ring 31 and the lens barrel assembly 1 is released, the second axial thread length is 0.

[0093] In the embodiment of the present application, the angle adjustment component 3 and the focusing component 2 can be assembled to form a module, namely, an adjustment mechanism. By releasing the threaded fit between the adjustment ring 31 and the lens barrel component 1, the adjustment mechanism as a whole can be separated from the lens barrel component 1.

[0094] See also Figure 4 and Figure 5 In some embodiments, the angle adjustment assembly 3 further includes a first limiting structure 32, which is protrudingly arranged on the inner wall of the adjustment ring 31; when the angle adjustment assembly 3, the lens barrel assembly 1 and the focusing assembly 2 are in a mating connection state, a first accommodating space 30 is formed between the adjustment ring 31, the lens barrel assembly 1 and the connecting member 23; one end of the first limiting structure 32 is accommodated in the first accommodating space 30, for limiting the abutment with the abutment portion 232.

[0095] See also Fig.13 Combined with Figure 4-5 The first limiting structure 32 includes a first limiting retaining ring and a first annular groove. One end of the first limiting retaining ring protrudes from the inner wall of the adjusting ring 31, and the other end of the first limiting retaining ring abuts against the bottom of the first annular groove.

[0096] When the angle adjustment assembly 3, the lens barrel assembly 1 and the focusing assembly 2 are in a mating connection state, a first accommodating space 30 is formed between the adjusting ring 31, the lens barrel assembly 1 and the connecting piece 23, and one end of the first limit retaining ring protruding from the inner wall of the adjusting ring 31 can be accommodated in the first accommodating space 30, and in the process of loosening the adjusting ring 31, the adjusting ring 31 can drive the first limit retaining ring to move toward the abutment 232 until the side wall of the first limit retaining ring is in limited abutment with the abutment 232, thereby preventing the adjusting ring 31 from slipping when the focusing piece 21 is not assembled.

[0097] Preferably, the first limiting structure 32 and the abutting portion 232 are in linear abutment to reduce friction.

[0098] See also Figure 5 and Figure 7 In some embodiments, the connecting member 23 further includes a second limiting structure 233 , which is protruded from the outer wall of the connecting member 23 , and is used to abut against the first end of the rotating member 24 .

[0099] The second limiting structure 233 includes a second limiting member 2332 and a second limiting mounting structure 2331 recessed on the outer wall of the connecting member 23; part of the second limiting member 2332 is protruding from the outer wall of the connecting member 23 and abuts against the first end of the rotating member 24, and the remaining part of the second limiting member 2332 is placed in the second limiting mounting structure 2331.

[0100] In the embodiment of the present application, when the rotating member 24 and the connecting member 23 are in cooperation, a second limiting structure 233 is protruded on the outer wall of the connecting member 23, and the first end of the rotating member 24 abuts against the second limiting structure 233, and the second end of the rotating member 24 abuts against the limiting protrusion 234, thereby limiting the axial movement of the rotating member 24 relative to the connecting member 23, ensuring that the rotating member 24 only rotates without moving in the horizontal direction during the rotation process, avoiding the influence of the axial movement of the rotating member 24 relative to the connecting member 23 during the rotation process on the focal length adjustment of the imaging element to be adjusted, thereby improving the accuracy of the focusing assembly 2 in focusing the imaging element to be adjusted.

[0101] In some embodiments, one side of the second position-limiting member 2332 is linearly abutted against the first end of the rotating member 24. This linear abutment can effectively reduce the friction between the rotating member 24 and the second position-limiting member 2332 during the rotation process, thereby improving the smoothness of the rotation of the rotating member 24 and the reliability of the device. Specifically, the second position-limiting mounting structure 2331 is a second annular groove recessed on the outer wall of the connecting member 23, and the second position-limiting member 2332 is a second position-limiting retaining ring.

[0102] In other embodiments, the second limiting structure 233 may be a limiting protrusion or other structural member having a limiting function, which is not limited here.

[0103] See also Figure 6 In some embodiments, at least one positioning hole 236 is provided at the first end of the connecting member 23. After the focus or angle adjustment of the imaging element to be adjusted is completed, the positioning member passes through the positioning hole 236 and is tightly connected with the extension member 22 to achieve the position limitation of the extension member 22, so as to prevent the extension member 22 from moving abnormally and affecting the focusing effect. Exemplarily, the positioning hole 236 is a positioning threaded hole, and the positioning member is a positioning screw or a positioning pin, etc.

[0104] See also Figure 5 and Fig.11 In some embodiments, a first end of the focusing member 21 is provided with a stopper 212 , and the stopper 212 abuts against an outer wall of the connecting member 23 ; and a second end of the focusing member 21 abuts against an outer wall of the rotating member 24 .

[0105] Specifically, the resisting portion 212 is a resisting shaft disposed at a first end of the focusing member 21 , and the resisting shaft is protruded from an inner wall of the focusing member 21 .

[0106] In the embodiment of the present application, when the focusing member 21, the rotating member 24 and the connecting member 23 are in cooperation, the rotating member 24 is sleeved on the outside of the connecting member 23, the focusing member 21 is sleeved on the outside of the rotating member 24, and the stopper 212 of the focusing member 21 abuts against the outer wall of the connecting member 23; the second end of the focusing member 21 abuts against the outer wall of the rotating member 24, and then the focusing member 21 is arranged to completely cover the first end of the rotating member 24, thereby improving the good sealing performance of the stopper 212 of the focusing member 21 to the first end of the rotating member 24, avoiding external dust and other impurities from entering the gap between the rotating member 24 and the connecting member 23 for rotational cooperation, causing the rotating member 24 to become stuck, thereby ensuring the smoothness of the rotational cooperation of the rotating member 24 relative to the connecting member 23, and at the same time improving the aesthetics of the appearance design.

[0107] When the focusing member 21 , the rotating member 24 and the connecting member 23 are in a cooperatively connected state, a second accommodating space 50 is formed among the focusing member 21 , the rotating member 24 and the connecting member 23 ; a portion of the second position limiting member 2332 is accommodated in the second accommodating space 50 .

[0108] In the embodiment of the present application, the second limiting member 2332 can be partially accommodated in the second accommodating space 50, and one side of the second limiting member 2332 is in contact with the rotating member 24, and there is a gap between the other side of the second limiting member 2332 and the blocking portion 212, so that when the focusing member 21 drives the rotating member 24 to rotate relative to the connecting member 23, friction between the blocking portion 212 and the second limiting member 2332 can be avoided, thereby affecting the service life of the second limiting member 2332. In addition, the second limiting member 2332 is arranged on the inner side of the blocking portion 212, which can prevent the second limiting member 2332 from falling off the connecting member 23, and at the same time prevent external impurities from entering the second accommodating space 50 to contaminate and damage the second limiting member 2332.

[0109] See also Fig.11 Combined with Figure 5 In some embodiments, the focusing member 21 includes a yielding portion 213, which is recessed in the inner wall of the focusing member 21; when the focusing member 21 is in a mating connection with the rotating member 24, the yielding length of the yielding portion 213 covers the moving path of the moving follower 25.

[0110] Specifically, the yielding length of the yielding portion 213 can cover the first limiting track 241 on the rotating member 24 .

[0111] The yield portion 213 is a yield groove recessed in the inner wall of the focusing member 21. The movable follower 25 is coated with lubricant. The yield groove can be used to accommodate the lubricant squeezed out from the movable follower 25, thereby improving the smoothness of the movement of the movable follower 25 in the first limiting track 241 and the linear limiting track 231.

[0112] See also Figure 5 , the cross-sectional height of the movable follower 25 is not higher than the cross-sectional height of the first limiting track 241 .

[0113] In the embodiment of the present application, when the mobile follower 25 is in cooperation with the rotating member 24 and the connecting member 23 respectively, the cross-sectional height of the mobile follower 25 is not higher than the cross-sectional height of the first limiting rail 241, so that there is a certain gap between the upper surface of the mobile follower 25 and the focusing member 21, thereby avoiding interference between the mobile follower 25 and the focusing member 21 during the horizontal movement of the mobile follower 25 under the cooperation of the linear limiting rail 231 and the first limiting rail 241, thereby ensuring the stability and smoothness of the movement of the mobile follower 25 in the linear limiting rail 231 and the first limiting rail 241.

[0114] See also Fig.10In some embodiments, at least one mounting portion 221 is provided on the outer wall of the extension member 22, and the first end of the movable follower 25 protrudes from the outer wall of the extension member 22, passes through the linear limiting track 231, and is placed in the first limiting track 241; the second end of the movable follower 25 is fixedly connected to the mounting portion 221.

[0115] In the embodiment of the present application, the second end of the mobile follower 25 is fixedly connected to the mounting portion 221, thereby ensuring the stability of the connection between the mobile follower 25 and the extension member 22. Further, when the mobile follower 25, the rotating member 24 and the connecting member 23 are in cooperation, the first end of the mobile follower 25 can be accommodated in the first limiting track 241 after passing through the linear limiting track 231. Further, when the rotating member 24 rotates relative to the connecting member 23, the rotation of the rotating member 24 can push the mobile follower 25 in the first limiting track 241 to move horizontally along the linear limiting track 231, thereby improving the stability and efficiency of the horizontal movement of the extension member 22.

[0116] See also Fig.10 and Fig. 9 The mounting portion 221 includes a mounting hole 222 and a mounting position 223; the mounting position 223 is recessed on the outer wall of the extension member 22, and the mounting hole 222 is arranged in the mounting position 223 and passes through the inner wall of the extension member 22; a connecting through hole 251 is arranged on the mobile follower 25, and the second end of the mobile follower 25 can be accommodated in the mounting position 223, and the connecting through hole 251 and the mounting hole 222 are fastened and connected by fasteners to realize the fixed connection between the mobile follower 25 and the extension member 22.

[0117] Specifically, the mounting position 223 is a mounting groove recessed on the outer wall of the extension member 22, and the depth of the recess is less than the wall thickness of the extension member 22. The cross-sectional height of the fastener is not higher than the cross-sectional height of the moving follower 25, so as to avoid the fastener protruding from the moving follower 25 and causing interference wear on the focusing member 21, and further improve the smoothness of the horizontal movement of the moving follower 25 along the linear limiting track 231.

[0118] The structure of the mounting position 223 matches the shape of the movable follower 25 that cooperates therewith, thereby improving the fitting effect between the movable follower 25 and the mounting position 223 .

[0119] See also Fig.10 The second end face of the movable follower 25 is a smooth curved surface, and the mounting position 223 is a circular groove opened on the outer wall of the extension member 22. The movable follower 25 is completely fitted with the inner wall of the circular groove, so that the movable follower 25 and the mounting position 223 are integrated.

[0120] The mounting hole 222 is a threaded hole, and the moving follower 25 is fixed in the mounting position 223 of the extension member 22 by a fastener.

[0121] In the embodiment of the present application, by respectively providing a mounting position 223 and a mounting hole 222 on the outer wall of the extension member 22, the second end of the mobile follower 25 can be accommodated in the mounting position 223, and the mobile follower 25 can be fixed in the mounting position 223 of the extension member 22 by a fastener, thereby improving the stability and reliability of the connection between the mobile follower 25 and the extension member 22, and at the same time can further improve the force strength of the overall connection between the mobile follower 25 and the extension member 22.

[0122] Optionally, the outer wall of the extension member 22 is provided with three mounting portions 221 equidistantly arranged in the circumferential direction, which are respectively used to be fixedly connected to the mobile follower 25, thereby improving the stability and efficiency of the mobile follower 25 driving the extension member 22 to move horizontally. The number of mounting portions 221 can be set as needed and is not limited here.

[0123] See also Fig.10 In some embodiments, a reinforcing portion 224 is provided on the extension member 22 and protrudes from the inner wall thereof. The reinforcing portion 224 is provided at a position corresponding to the position of the mounting portion 221 and protrudes from the inner wall of the extension member 22 .

[0124] Specifically, the reinforcing portion 224 may be formed by extending from the inner wall of the extension piece 22 corresponding to the setting position of the mounting portion 221 toward the axis of the extension piece 22 , and the setting position of the reinforcing portion 224 corresponds to the mounting position 223 .

[0125] Specifically, the mounting hole 222 is provided through the reinforcing portion 224 .

[0126] In the embodiment of the present application, a reinforcing portion 224 extending toward the axis of the extension piece 22 is provided on the inner wall of the extension piece 22, and the mounting hole 222 is provided through the reinforcing portion 224. This can enhance the strength and rigidity of the extension piece 22 at the reinforcing portion 224, thereby avoiding directly providing the mounting groove and the mounting hole on the extension piece 22, which would cause deformation or rupture of the extension piece 22. This improves the bearing capacity of the extension piece 22 at the reinforcing portion 224, and ensures the reliability of the mating connection between the moving follower 25 and the extension piece 22.

[0127] See also Fig. 9 and Fig.10 In some embodiments, an initial installation mark 225 is further provided on the outer wall of the extension member 22; the initial installation mark 225 is used to indicate the initial matching installation position of the connector 23 and the extension member 22. The setting of the initial installation mark 225 can ensure that the connector 23 and the extension member 22 can be accurately matched to the correct position during the installation process, thereby improving the assembly efficiency of the extension member 22 and the connector 23.

[0128] In some embodiments, the extension member 22 includes a filter element installation position, which is recessed in the inner wall of the extension member 22 for placing the filter element.

[0129] Specifically, the filter element installation position is set at the first end of the extension 22, that is, the end of the extension 22 close to the imaging element to be adjusted. The filter element can adjust the amount of light entering the imaging element to be adjusted, thereby improving the imaging quality and effect of the imaging element to be adjusted.

[0130] A filter ring can be arranged in the filter element installation position, and the filter element is fixedly installed in the filter ring, thereby ensuring the stability and reliability of the filter element installation.

[0131] See also Fig.12 In some embodiments, a connecting flange 13 is provided at one end of the lens barrel assembly 1 that is away from the focusing assembly 2, so as to facilitate connecting the lens barrel assembly 1 to a device carrying a target sample.

[0132] Specifically, an adjustable connecting through hole 131 is provided on the connecting flange 13 , and the adjustable connecting through hole 131 may be a waist-shaped hole, so as to facilitate the coaxial adjustment of the lens barrel assembly 1 and the device carrying the target sample.

[0133] Specifically, the device carrying the target sample may be a microscope. By providing an adjustable connecting through hole 131 on the connecting flange 13 , it is possible to adjust the optical axis of the microscope to be coaxial with the optical axis of the lens barrel assembly 1 .

[0134] In some embodiments, the lens barrel assembly 1 further includes at least one optical element, and at least one optical element mounting portion 14 is disposed in the lens barrel assembly 1 ; the optical element is mounted on the optical element mounting portion 14 .

[0135] Specifically, the lens barrel assembly 1 includes a lens barrel, and at least one optical element mounting portion 14 is disposed inside the lens barrel, and the optical element is mounted on the optical element mounting portion 14. The optical element includes but is not limited to a convex lens and an assembly, a concave lens and an assembly, or a convex and concave lens assembly.

[0136] In the embodiment of the present application, at least one optical element is disposed in the lens barrel assembly 1 , and the optical element can focus the light reflected from or transmitted through the target sample to form a clear image on the imaging plane of the CCD camera 10 .

[0137] On the other hand, the present application also discloses an optical analysis device, including an imaging element to be adjusted and the optical imaging element adjustment device as described above, wherein the imaging element to be adjusted is detachably fixedly connected to the focusing assembly 2.

[0138] The imaging element to be adjusted is a CCD camera 10 , which is detachably arranged at one end of the extension piece 22 of the focusing assembly 2 .

[0139] The lens barrel assembly 1 of the optical imaging element adjustment device is used for detachably connecting with a microscope device carrying a target sample.

[0140] In the embodiment of the present application, the integrity and clarity of the target sample image information collected by the CCD camera 10 can be improved by adjusting the optical imaging element adjustment device.

[0141] On the other hand, the present application also discloses an optical analysis system, including an image analysis device and the optical analysis apparatus as described above; the image analysis device is communicatively connected to the imaging element to be adjusted; the imaging element to be adjusted is used to collect image information of the target sample and send it to the image analysis device, and the image analysis device can perform image analysis processing on the image information of the target sample.

[0142] Specifically, the image information of the target sample is analyzed using an image analysis device, thereby obtaining measurement data information and defect detection information of the target sample.

[0143] In the embodiment of the present application, the integrity and clarity of the target sample image information collected by the CCD camera 10 can be improved by adjusting the optical imaging element adjustment device, thereby improving the accuracy of the image analysis device in analyzing the target sample image information.

[0144] The following is a further description of the adjustment operation steps of the optical analysis device, taking the imaging element to be adjusted as a CCD camera as an example. The specific steps are as follows:

[0145] Angle adjustment process of CCD camera 10:

[0146] The adjusting ring 31 is rotated clockwise until the limiting portion 311 of the adjusting ring 31 is separated from the abutting portion 232 of the connecting member 23 , and the connecting member 23 is movable relative to the lens barrel assembly 1 ;

[0147] Then, the focusing assembly 2 is rotated as a whole, which can drive the CCD camera 10 fixedly connected to the extension piece 22 to rotate relative to the lens barrel assembly 1, so that the observation range of the observation window of the CCD camera 10 completely covers the target sample, and the observation window of the CCD camera 10 matches the placement angle of the target sample.

[0148] After the angle adjustment of the CCD camera 10 is completed, the CCD camera 10 is focused. Specifically, the focusing process is as follows:

[0149] First, rotate the adjusting ring 31 counterclockwise to move it toward the left until the limiting portion 311 of the adjusting ring 31 and the abutting portion 232 of the connecting member 23 are tightly matched, so that the connecting member 23 is fixed relative to the lens barrel assembly 1;

[0150] Then, rotating the focusing ring 21 can drive the rotating member 24 to rotate relative to the connecting member 23, and then drive the moving follower 25 to move in the linear limit track 231 and the first limit track 241, so that the extension member 22 drives the CCD camera 10 to move horizontally until the clarity of the target sample image collected by the CCD camera 10 meets the preset clarity requirements.

[0151] Finally, the positioning screw passes through the positioning hole 236 of the connecting member 23 and abuts against the extending member 22 to achieve a tight connection between the connecting member 23 and the extending member 22 .

[0152] In the embodiment of the present application, the CCD camera 10 can be angle adjusted and / or focused according to actual needs.

[0153] It should be noted that when the optical analysis device needs to adjust the angle and focus the CCD camera 10, it is necessary to complete the angle adjustment first to ensure that the observation window of the CCD camera 10 matches the placement angle of the target sample and the observation range of the CCD camera 10 completely covers the target sample, and then focus the CCD camera 10 to ensure that the CCD camera 10 can clearly capture the graphic information of the target sample, thereby improving the imaging quality of the CCD camera.

[0154] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0155] It should be noted that all the features recorded in this application (including technical features recorded in different embodiments) can be combined arbitrarily under reasonable circumstances, and new technical solutions formed by the combination are all within the protection scope of this application.

[0156] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An optical imaging element adjustment device, characterized in that: It comprises a lens barrel assembly (1) and an adjustment mechanism; The adjustment mechanism comprises a focusing assembly (2) and an angle adjustment assembly (3); the focusing assembly (2) is used to be connected to the imaging element to be adjusted; the angle adjustment assembly (3) is detachably connected to the lens barrel assembly (1) and the focusing assembly (2), respectively; and by adjusting the angle adjustment assembly (3), relative fixation or relative movement between the lens barrel assembly (1) and the focusing assembly (2) can be achieved; When the angle adjustment component (3) is adjusted so that the lens barrel component (1) and the focusing component (2) are relatively fixed, the focusing component (2) is adjusted so that the imaging element to be adjusted can be driven to move horizontally relative to the lens barrel component (1); and when the angle adjustment component (3) is adjusted so that the lens barrel component (1) and the focusing component (2) are relatively movable, the focusing component (2) is rotated so that the imaging element to be adjusted can be driven to rotate relative to the lens barrel component (1).

2. The optical imaging element adjustment device according to claim 1, characterized in that: The second end of the focusing assembly (2) is provided with an abutment portion (232); The first end of the lens barrel assembly (1) and the first end of the angle adjustment assembly (3) are respectively arranged on two sides of the abutment portion (232), and the first end of the lens barrel assembly (1) abuts against the abutment portion (232); When the angle adjustment component (3) is adjusted to be tightly connected with the abutment portion (232), the lens barrel component (1) and the focusing component (2) are relatively fixed; otherwise, the lens barrel component (1) and the focusing component (2) are relatively movable.

3. The optical imaging element adjustment device according to claim 2, characterized in that: The focusing assembly (2) comprises a focusing member (21), a transmission assembly (20) and an extension member (22) which are coaxially arranged; The focusing member (21) is sleeved on the outside of the transmission assembly (20), the extension member (22) is sleeved on the inside of the transmission assembly (20), and the first end of the extension member (22) is used for detachably connecting to the imaging element to be adjusted.

4. The optical imaging element adjustment device according to claim 3, characterized in that: The transmission assembly (20) comprises a coaxially arranged connecting member (23), a rotating member (24) and a moving driven member (25); The connecting member (23) is sleeved on the outer side of the extending member (22), the connecting member (23) is sleeved on the inner side of the rotating member (24), and the focusing member (21) is fixedly sleeved on the outer side of the rotating member (24); the first end of the movable follower (25) is in transmission cooperation with the connecting member (23) and the rotating member (24), and the second end of the movable follower (25) is detachably fixedly connected to the extending member (22).

5. The optical imaging element adjustment device according to claim 4, characterized in that: The connecting member (23) is provided with a linear limiting track (231) parallel to its central axis, the rotating member (24) is provided with a first limiting track (241) which is at an angle to the linear limiting track (231), and the first end of the movable follower (25) passes through the linear limiting track (231) and is placed in the first limiting track (241); By rotating the focusing member (21) to drive the rotating member (24) to rotate, the movable follower (25) can, in cooperation with the first limiting track (241) and the linear limiting track (231), cooperatively drive the extension member (22) to reciprocate horizontally relative to the lens barrel assembly (1).

6. The optical imaging element adjustment device according to claim 5, characterized in that: The second end of the connecting member (23) is provided with the abutment portion (232), and the first end of the lens barrel assembly (1) is sleeved on the outer wall of the connecting member (23) and abuts against the abutment portion (232).

7. The optical imaging element adjustment device according to claim 4, characterized in that: A limiting protrusion (234) is provided on the outer wall of the connecting member (23), one end of the limiting protrusion (234) is in abutment with the first end of the angle adjustment assembly (3); the other end of the limiting protrusion (234) is in abutment with the second end of the rotating member (24).

8. The optical imaging element adjustment device according to claim 7, characterized in that: The cross-sectional height of the limiting protrusion (234) is higher than or equal to the cross-sectional height of the rotating member (24).

9. The optical imaging element adjustment device according to claim 8, characterized in that: The angle adjustment assembly (3) comprises an adjustment ring (31); a first end of the adjustment ring (31) is provided with a limiting portion (311), and the limiting portion (311) abuts against the limiting protrusion (234); and a second end of the adjustment ring (31) is detachably connected to the lens barrel assembly (1); By adjusting the adjustment ring (31), the distance between the limiting portion (311) and the abutting portion (232) can be adjusted.

10. The optical imaging element adjustment device according to claim 9, characterized in that: A clearance space (40) is provided between the limiting portion (311) and the focusing member (21); when the adjusting ring (31) is adjusted, the limiting portion (311) can be placed in the clearance space (40).

11. The optical imaging element adjustment device according to claim 10, characterized in that: The second end of the adjusting ring (31) is threadedly connected to the lens barrel assembly (1). When the lens barrel assembly (1) and the focusing assembly (2) are in a relatively fixed state, the length of a first axial thread of the second end of the adjusting ring (31) threadably matched with the lens barrel assembly (1) is less than the length of the clearance space (40); When the lens barrel assembly (1) and the focusing assembly (2) are in a relatively active state, the second axial thread length of the second end of the adjusting ring (31) threadably matched with the lens barrel assembly (1) is smaller than the first axial thread length.

12. The optical imaging element adjustment device according to claim 9, characterized in that: The angle adjustment assembly (3) further comprises a first limiting structure (32), wherein the first limiting structure (32) is protrudingly arranged on the inner wall of the adjustment ring (31); When the angle adjustment assembly (3), the lens barrel assembly (1) and the focusing assembly (2) are in a cooperatively connected state, a first accommodating space (30) is formed between the adjustment ring (31), the lens barrel assembly (1) and the connecting member (23); one end of the first limiting structure (32) is accommodated in the first accommodating space (30) and is used for limiting abutment with the abutment portion (232).

13. The optical imaging element adjustment device according to claim 12, characterized in that: The first limiting structure (32) and the abutment portion (232) are in linear abutment.

14. The optical imaging element adjustment device according to claim 4, characterized in that: The connecting member (23) comprises a second limiting structure (233), the second limiting structure (233) being protruding from the outer wall of the connecting member (23), and the second limiting structure (233) being used for abutting against the first end of the rotating member (24).

15. The optical imaging element adjustment device according to claim 14, characterized in that: The second limiting structure (233) comprises a second limiting member (2332), and one side of the second limiting member (2332) is in abutment with the first end of the rotating member (24).

16. The optical imaging element adjustment device according to claim 15, characterized in that: When the focusing member (21), the rotating member (24) and the connecting member (23) are in a cooperatively connected state, a second accommodating space (50) is formed between the focusing member (21), the rotating member (24) and the connecting member (23), and a portion of the second limiting member (2332) is accommodated in the second accommodating space (50); And / or, one side of the second limiting member (2332) is in linear contact with the first end of the rotating member (24).

17. The optical imaging element adjustment device according to claim 4, characterized in that: The first end of the focusing member (21) is provided with a stopper (212), and the stopper (212) abuts against the outer wall of the connecting member (23); the second end of the focusing member (21) abuts against the outer wall of the rotating member (24).

18. The optical imaging element adjustment device according to claim 5, characterized in that: The focusing member (21) comprises a yielding portion (213), wherein the yielding portion (213) is recessed in the inner wall of the focusing member (21); when the focusing member (21) is in a state of being matched and connected with the rotating member (24), the yielding length of the yielding portion (213) covers the moving path of the moving follower (25); And / or, the cross-sectional height of the movable follower (25) is not higher than the cross-sectional height of the first limiting track (241).

19. The optical imaging element adjustment device according to claim 5, characterized in that: At least one mounting portion (221) is provided on the outer wall of the extension piece (22), and the mounting portion (221) comprises a mounting hole (222) and a mounting position (223); The mounting position (223) is recessed on the outer wall of the extension piece (22), and the mounting hole (222) is disposed in the mounting position (223) and passes through the inner wall of the extension piece (22); The movable follower (25) is provided with a connecting through hole (251), and the second end of the movable follower (25) can be accommodated in the mounting position (223), and the connecting through hole (251) and the mounting hole (222) are fastened and connected by a fastener.

20. The optical imaging element adjustment device according to claim 19, characterized in that: The extension piece (22) comprises a reinforcing portion (224), the setting position of the reinforcing portion (224) corresponds to the setting position of the mounting position (221), and is protruding from the inner wall of the extension piece (22), and the mounting hole (222) passes through the reinforcing portion (224); And / or, the cross-sectional height of the fastener is not higher than the cross-sectional height of the movable follower (25).

21. The optical imaging element adjustment device according to claim 5, characterized in that: The first end of the connecting member (23) is provided with at least one positioning hole (236), and the positioning member abuts against the extension member (22) after passing through the positioning hole (236). And / or, the extension piece (22) comprises a filter element mounting position, the filter element mounting position is recessed in the inner wall of the extension piece (22) and is used for placing the filter element.

22. An optical analysis device, characterized in that: It comprises the imaging element to be adjusted and the optical imaging element adjustment device according to any one of claims 1 to 21, wherein the imaging element to be adjusted is detachably fixedly connected to the focusing component (2).

23. An optical analysis system, characterized in that: comprising an image analysis device and an optical analysis apparatus as claimed in claim 22; The image analysis device is communicatively connected with the imaging element to be adjusted; the imaging element to be adjusted is used to collect image information of the target sample and send it to the image analysis device, and the image analysis device can perform image analysis processing on the image information of the target sample.

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