Objective lens detection device, objective lens detection method, and microscope

Abstract

An objective lens detection device (10), comprising a fixing base (11), an objective lens turntable (12), a driving member (13), a first detection device (14) and a control assembly (16). The objective lens turntable (12) is rotatably connected to the fixing base (11), and N mounting positions are provided on a surface of the objective lens turntable (12), the N mounting positions being circumferentially spaced on the surface of the objective lens turntable (12), and each mounting position being used for mounting an objective lens (30), where N is a positive integer and is greater than or equal to 2. The driving member (13) is drivingly connected to the objective lens turntable (12). The first detection device (14) is arranged on the side surface of the fixing base (11) corresponding to one mounting position with the detection direction facing the mounting position, and is used for detecting the presence or absence of an objective lens in the mounting position and / or the attribute information of the objective lens. The control assembly (16) is electrically connected to both the driving member (13) and the first detection device (14) to control the operation of the driving member (13) and the first detection device (14). Further provided are an objective lens detection method and a microscope.

Description

Objective lens detection device, objective lens detection method, and microscope Technical Field

[0001] The present disclosure relates to the technical field of microscopes, and in particular to an objective lens detection device and an objective lens detection method, and a microscope. Background Art

[0002] A digital microscope is a high-tech product developed by combining optical microscope technology, photoelectric conversion technology, and liquid crystal display technology. Microscopic research can be reproduced on a monitor instead of traditional binocular observation, allowing multiple people to observe and improving work efficiency. Summary of the Invention

[0003] The purpose of the present disclosure is to provide a device for detecting an objective lens, aiming to realize identification and detection of the objective lens at a low cost.

[0004] The present disclosure provides an objective lens detection device, which includes: a fixed seat; an objective lens turntable, which is rotatably connected to the fixed seat, and a surface of the objective lens turntable is provided with N mounting positions, and the N mounting positions are circumferentially spaced; each mounting position is used to mount an objective lens, wherein N is a positive integer and is greater than or equal to 2; a driving member, which is drivingly connected to the objective lens turntable to drive the objective lens turntable to rotate relative to the fixed seat; a first detection device, which is provided on a side of the fixed seat and is used to detect whether the mounting position has an objective lens and / or objective lens attribute information; and a control component, which is electrically connected to the driving member and the first detection device to control the operation of the driving member and the first detection device.

[0005] In one embodiment of the present disclosure, the first detection device is a time-of-flight sensor.

[0006] In an embodiment of the present disclosure, the number of the first detection devices is N, and the N first detection devices are arranged in a one-to-one correspondence with the N installation positions.

[0007] In one embodiment of the present disclosure, a trigger is provided on the other surface of the objective lens turntable, and the objective lens detection device also includes N second detection devices, which are spaced apart on the circumference of the fixed seat. The second detection devices are arranged in a one-to-one correspondence with the mounting positions and are electrically connected to the control component. The second detection devices can be triggered by the trigger and transmit signals to the control component.

[0008] In one embodiment of the present disclosure, the trigger member includes a connecting portion and a shielding portion arranged perpendicular to each other, the connecting portion is connected to the other surface of the objective lens turntable, the second detection device is a photoelectric gate, and the photoelectric gate forms a roughly horizontal slot on a side away from the fixed seat. The objective lens turntable rotates to drive the shielding portion into one of the slots to trigger the corresponding photoelectric gate.

[0009] In one embodiment of the present disclosure, the control component includes a processor and a memory, the memory is used to store pre-calibrated standard objective lens property information, and the processor is used to receive electrical signals from the first detection device and the second detection device, and process them according to the standard objective lens property information.

[0010] In one embodiment of the present disclosure, a tooth structure is formed on the circumference of the objective lens turret, a driving end of the driving member is connected to a driving gear, the driving gear is engaged with the tooth structure, and the driving member drives the driving gear to drive the objective lens turret to rotate.

[0011] The present disclosure also proposes a method for detecting an objective lens, which is applied to an objective lens detection device, wherein the objective lens detection device is any of the microscope objective lens detection devices described above, and the detection method includes: obtaining position information of the installation position; controlling a first detection device to perform detection on the corresponding installation position; receiving detection data from the first detection device, and judging whether an objective lens exists in the corresponding installation position and / or the attribute information of the objective lens based on the detection data.

[0012] In one embodiment of the present disclosure, controlling the first detection device to perform detection on the corresponding mounting position; receiving detection data of the first detection device, and judging whether the corresponding mounting position has an objective lens and / or the attribute information of the objective lens according to the detection data includes: controlling the first detection device to perform a first detection on the corresponding mounting position to generate first detection data; receiving the first detection data of the first detection device, and judging whether the corresponding mounting position has an objective lens according to the first detection data; if so, controlling the first detection device to perform a second detection on the objective lens to generate second detection data; receiving the second detection data of the first detection device, and judging the attribute information of the objective lens according to the second detection data.

[0013] In one embodiment of the present disclosure, the first detection device is a time-of-flight sensor, and the first detection data is single-point depth data. Receiving the first detection data of the first detection device and judging whether an objective lens exists in the corresponding installation position based on the first detection data include: receiving the single-point depth data of the first detection device, wherein the single-point depth data is the distance between the first detection device and the probe object; comparing the single-point depth data to see whether it is less than or equal to a preset depth threshold; if so, judging whether an objective lens exists in the corresponding installation position.

[0014] In an embodiment of the present disclosure, the method further includes: if not, generating a result indicating that there is no objective lens at the corresponding installation position, and sending the result to a host computer.

[0015] In one embodiment of the present disclosure, the first detection device is a time-of-flight sensor, and the controlling the first detection device to perform a second detection on the objective lens to generate second detection data; receiving the second detection data of the first detection device, and judging the attribute information of the objective lens based on the second detection data includes: controlling the first detection device to perform depth detection on each area of ​​the objective lens to obtain partitioned depth data; obtaining the contour of the objective lens obtained by the first detection device through point cloud computing based on the partitioned depth data, wherein the second detection data is the contour of the objective lens; and comparing the contour of the objective lens with the contour information of multiple calibrated objective lenses to confirm the attribute information of the objective lens.

[0016] In one embodiment of the present disclosure, the comparing the profile of the objective lens with a plurality of calibrated profile information to confirm the property information of the objective lens includes: determining whether the profile of the objective lens is consistent with the profile information of one of the calibrated objective lenses; if so, obtaining the magnification information of the objective lens based on the correspondence between the profile information of the calibrated objective lens and the magnification information.

[0017] In one embodiment of the present disclosure, the objective lens detection device also includes N second detection devices and a triggering member, the N second detection devices are arranged at intervals on the circumferential side of the fixed seat, the second detection devices are arranged in a one-to-one correspondence with the mounting positions, the triggering member is arranged on the other surface of the objective lens turntable, the second detection device is a photoelectric gate, and the triggering member is a baffle, wherein one photoelectric gate is a main viewing position, and obtaining the position information of the mounting position includes: obtaining the electrical signal of the triggered photoelectric gate; and obtaining the position information of the mounting position corresponding to the triggered photoelectric gate relative to the main viewing position based on the relative position relationship between each photoelectric gate and the main viewing position.

[0018] In one embodiment of the present disclosure, there are N first detection devices, and the first detection devices are arranged corresponding to the installation positions. Controlling the first detection devices to detect the corresponding installation positions includes: controlling the N first detection devices to detect the N installation positions respectively at the same time.

[0019] The present disclosure also provides a microscope comprising the above objective lens detection device.

[0020] In the technical solution disclosed in the present invention, a microscope objective lens detection device includes a fixed seat, an objective lens turret, a driving member, a first detection device, and a control assembly. The fixed seat is used to provide a mounting base for the device, and the objective lens turret is used to provide a mounting base for the objective lens. One surface of the fixed seat is provided with N mounting positions, so that a maximum of N objective lenses can be installed, and the objective lens turret can be rotatably connected to the fixed seat, providing the possibility for observations of different magnifications. The driving member is driven to be connected to the objective lens turret, so that automated observation of the microscope can be achieved. The first detection device is located on the side of the fixed seat and can directly detect the mounting position to determine whether an objective lens is installed therein, or detect the property information of the installed objective lens, or detect the property information of the objective lens after determining whether an objective lens is present, and transmit the property information of the objective lens to an external host computer through the control assembly to automatically obtain the information of the objective lens installed on the microscope, without the need to improve the objective lens, effectively reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] FIG1 is a schematic structural diagram of an embodiment of a microscope objective lens detection device disclosed herein.

[0023] FIG2 is a flow chart of an embodiment of a detection method of a microscope objective lens detection device disclosed herein.

[0024] FIG3 is a flow chart of another embodiment of a detection method of a microscope objective lens detection device disclosed herein.

[0025] FIG4 is a flow chart of another embodiment of a detection method of a microscope objective lens detection device disclosed herein.

[0026] Description of Figure Numbers:

[0027] The purpose, features and advantages of the present disclosure will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0028] To more quickly and clearly observe, compare, and analyze the same area of ​​a sample at different magnifications, multiple objective lenses are typically integrated into a converter. A suitable objective lens is then selected based on the user or system's needs. Digital microscopes require initialization testing before use, allowing the corresponding application to access information about each objective lens. However, existing detection structures require the addition of contact recognition to the objective lens, which requires the custom development of the objective lens, which is costly.

[0029] The following will clearly and completely describe the technical solutions in this embodiment in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of this disclosure, not all of them. Based on the embodiments in this disclosure, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this disclosure.

[0030] It should be noted that all directional indications in this embodiment (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship and movement status between the various components under a certain specific posture (as shown in Figure 1). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0032] In this disclosure, unless otherwise expressly specified or limited, the terms "connect," "fix," etc. should be understood in a broad sense. For example, "fix" can mean a fixed connection, a detachable connection, or an integral connection; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean internal communication between two elements or an interaction between two elements, unless otherwise expressly specified. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0033] In addition, the technical solutions of the various embodiments of the present disclosure may be combined with each other, but this must be based on the fact that they can be implemented by a person of ordinary skill in the art. If the combination of technical solutions is mutually inconsistent or cannot be implemented, it shall be deemed that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the present disclosure. It should be understood that the specific embodiments described herein are only used to illustrate the present disclosure and are not intended to limit the present disclosure.

[0034] The descriptions of directions such as "up", "down", "front", "back", "left" and "right" in this disclosure are based on the directions shown in Figure 1 and are only used to explain the relative positional relationship between the various components in the posture shown in Figure 1. If the specific posture changes, the directional indication will also change accordingly.

[0035] The present disclosure provides a microscope objective lens detection device for performing initialization detection on the objective lens of a microscope.

[0036] 1 , in one embodiment of the present disclosure, the objective lens detection device 10 includes a fixed base 11, an objective lens turret 12, a driving member 13, a first detection device 14, and a control assembly 16. The objective lens turret 12 is rotatably connected to the fixed base 11. A surface of the objective lens turret 12 is provided with N mounting positions, which are circumferentially spaced apart. Each mounting position is used to mount an objective lens 30, where N is a positive integer greater than or equal to 2.

[0037] The driving member 13 is drivingly connected to the objective lens turret 12 to drive the objective lens turret 12 to rotate relative to the fixing base 11 .

[0038] The first detection device 14 is disposed on a side of the fixing seat 11 , with a detection direction toward one of the installation positions, for detecting whether an objective lens and / or objective lens property information is present at the installation position.

[0039] The control component 16 is electrically connected to the driving member 13 and the first detection device 14 to control the operation of the driving member 13 and the first detection device 14 .

[0040] In this embodiment, the fixed base 11 is used to provide a mounting base for other components. Its shape can be cylindrical, rectangular, or other shapes, etc., which are not limited here. The fixed base 11 can be the main rod structure of the microscope, or it can be installed on the main structure of the microscope, which is not limited here. The objective lens turret 12 is a structure for mounting the objective lens 30. It is roughly disc-shaped and rotatably connected to the fixed base 11. In one example, the fixed base 11 is cylindrical, and the objective lens turret 12 is directly mounted on the outer periphery of the fixed base 11 and is rotatable relative to the fixed base 11. This structure facilitates a compact structure and reduces space consumption. In other examples, the objective lens turret 12 can be provided with a protruding rotating shaft, and an axial hole can be provided in the middle of the fixed base 11, so that the objective lens turret 12 can be rotatably arranged by rotating the rotating shaft within the axial hole. The shape of the fixed base 11 is not limited here. The objective lens turret 12 is provided with N mounting positions, each of which is a mounting position and can be provided with a fixed structure to facilitate the assembly of the objective lens 30. For example, the fixing structure can be a magnetic assembly, a snap-fit ​​structure, or a slot structure, etc., which are not limited here. Where N is a positive integer and N is greater than or equal to 2, that is, the number of mounting positions can be two, three, or four, etc., and can be set as needed. The N mounting positions are provided on one surface of the objective turret 12. When the microscope is in normal use, the one surface of the objective turret 12 is the bottom surface, i.e., facing the ground.

[0041] The driver 13 drives the lens turret 12 to realize the automatic conversion of each objective lens 30. The driver 13 can be an electric motor, a hydraulic motor or a pneumatic motor, etc., which are not limited here. The driver 13 can be directly connected to the lens turret 12, or it can be connected through a transmission assembly, which are not limited here. During the initialization detection process, the driver 13 can drive the lens turret 12 so that the first detection device 14 corresponds to one of the installation positions to facilitate determining that the objective lens 30 is converted into place. During the automated observation process, the driver 13 plays a role in driving the lens turret 12 to rotate and convert different objective lenses 30.

[0042] The first detection device 14 is used to detect the condition of the objective lens 30 at the installation position, for example, whether the objective lens 30 is installed and / or the attribute information of the objective lens 30. The first detection device 14 can be selected as a distance sensor to determine the presence of the objective lens and / or its attribute information by detecting the distance; it can also be selected as an image sensor to detect the presence of the objective lens 30 and / or its attribute information by capturing an image, without limitation here. The attribute information may include, for example, magnification, size length, manufacturer model, lens aperture ratio or working distance, etc. The first detection device 14 can be a single one, and the driver 13 drives the objective lens turntable 12 to rotate, thereby realizing the installation condition detection of each installation position. The first detection device 14 can also be N, corresponding to each installation position, without limitation here.

[0043] The control component 16 can be a separate detection control unit or an integrated structure with the microscope's control and processing system, which is not limited here. The control component 16 can control the detection device in the objective lens detection device to obtain and process the detection data, and send the initialized detection results to the corresponding host computer (e.g., PC, SOC, MCU) to provide a basis for subsequent automated observation of the microscope.

[0044] In the technical solution disclosed herein, the objective lens detection device 10 includes a fixed base 11, an objective turret 12, a driver 13, a first detection device 14, and a control assembly 16. The fixed base 11 provides a mounting base for the device, while the objective turret 12 provides a mounting base for the objective lens 30. One surface of the fixed base 11 is provided with N mounting positions, allowing for the installation of up to N objective lenses 30, for example, of different magnifications. The objective lenses 30 can be rotatably connected to the fixed base 11, enabling observation at different magnifications. Objective lenses of different magnifications differ in appearance and length. The driving member 13 is driven and connected to the objective lens turntable 12, thereby realizing automatic observation of the microscope. The first detection device 14 is arranged on the peripheral side of the fixed seat 11, and can directly detect the installation position to determine whether the objective lens 30 is installed there, or determine the attribute information of the installed objective lens 30, or determine the attribute information of the objective lens after determining that there is an objective lens, and transmit it to the host computer through the control component 16 to automatically obtain the information of the objective lens 30 installed in the microscope, without the need to improve the objective lens 30, effectively reducing costs.

[0045] In one embodiment of the present disclosure, the first detection device 14 is a time-of-flight sensor.

[0046] In this embodiment, a time-of-flight (TOF) sensor uses a light source to emit light that is reflected by an object and then received by a detector. The distance of the measured object is calculated by calculating the time difference or phase difference between the emission and reflection of the light. The light source commonly used in TOF sensors is a laser, which has good directionality and enables more precise beam control and positioning. The TOF sensor can also create a 3D view based on the detected distance data, thereby identifying scenes and objects. The vertical height of the first detection device 14, i.e., the TOF sensor, corresponds to the height of the objective lens 30 installed in the mounting position. For example, the installation height of the TOF sensor is within the height range of the objective lens. Because the objective lens 30 is mounted on the objective turret 12, and its end generally does not extend beyond the edge of the objective turret 12, the presence of the objective lens 30 can be determined by detecting the distance between the TOF sensor and the objective lens 30 at a certain position and comparing this distance with the radius of the objective turret 12. When it is determined that the objective lens exists, the distance detection of each area of ​​the objective lens 30 is performed to obtain the partition depth data. The outline of the objective lens 30 can be obtained based on the data to determine the attribute information of the objective lens 30.

[0047] The data generated and captured by the time-of-flight sensor is very accurate, capable of achieving high-precision measurements, and has strong anti-interference capabilities, able to maintain stable detection performance. In addition, its low power consumption can effectively save energy.

[0048] Please continue to refer to Figure 1. In one embodiment of the present disclosure, the number of the first detection devices 14 is N, and the N first detection devices 14 are arranged in a one-to-one correspondence with the N installation positions, that is, when the detection direction of one first detection device is toward one installation position, the detection directions of the other first detection devices are also toward one of the remaining installation positions.

[0049] In this embodiment, by providing the same number of first detection devices 14 as the number of mounting positions, when inspecting the objective lens 30, the control component 16 can simultaneously control N first detection devices 14 to inspect the N mounting positions, thereby effectively improving the inspection efficiency of the objective lens inspection device 10, eliminating the need to control the driver 13, and simplifying the control logic. Optionally, each first detection device 14 is mounted on the fixing base 11 via a first circuit board, and is electrically connected to the control component 16 via the first circuit board, thereby facilitating electrical connection with the control component 16 while improving installation stability.

[0050] Continuing with FIG1 , in one embodiment of the present disclosure, a trigger member 17 is provided on another surface of the objective lens turret 12. The objective lens detection device further includes N second detection devices 15, which are spaced apart around the periphery of the fixing base 11. The objective lens turret 12 is located between the first detection device 14 and the second detection device 15. Each second detection device 15 is provided corresponding to a mounting position and is electrically connected to the control assembly. The second detection device 15 can be triggered by the trigger member 17 and transmits a signal to the control assembly 16.

[0051] To obtain position information corresponding to each mounting position, the objective lens detection device further includes a second detection device 15 and a trigger member 17. The trigger member 17 is disposed on another surface of the objective lens turret 12, i.e., the surface facing away from the mounting position. N second detection devices 15 are spaced apart around the periphery of the fixing base 11, facing away from the mounting position. When the projection of one second detection device on the surface of the objective lens turret 12 corresponds to a mounting position, the projections of the other second detection devices on the objective lens turret also correspond to one of the remaining mounting positions. "Correspondence" here means that the projections of the second detection devices on the objective lens turret are within N equally divided portions of the objective lens turret 12 containing the corresponding mounting position. A mounting position is disposed corresponding to the position of the trigger member 17, that is, the projection of the trigger member 17 on the objective lens turret is located within that mounting position. In this way, when the objective turret 12 rotates, the objective lens 30 and the trigger member 17 also rotate together, so that the trigger member 17 can trigger different second detection devices 15 at different positions. When the second detection device 15 is triggered, it will send an electrical signal to the control component 16. Because each second detection device 15 corresponds to a position, the position of the objective lens 30 in the corresponding installation position can be determined by the second detection device 15 that sends the electrical signal. Then, based on the arrangement of the second detection device, the position of the objective lens in other installation positions can be deduced. The second detection device 15 of this embodiment is installed on the peripheral side of the fixed base 11. It is triggered by the moving trigger member 17 to send an electrical signal, which can ensure the stability of the electrical signal transmitted by the second detection device 15 and improve the detection effect.

[0052] In one example, the second detection device 15 and the trigger member 17 can use photoelectric sensing technology, which is a photoelectric sensor and a shielding structure; in another example, the second detection device 15 and the trigger member 17 can also use direct contact to make the second detection device 15 generate an electrical signal to confirm the position information.

[0053] Optionally, the objective lens turntable 12 is in the shape of a disk with a surface concave downward into an arc surface, and a fixed disk is arranged in the concave space thereof. The fixed disk is fixed on the fixing seat 11, and the mounting position is set on the arc surface. The second detection device 15 is arranged on the surface of the fixed disk away from the objective lens turntable 12, and the trigger member 17 is arranged at the edge position of the surface of the objective lens turntable 12 away from the mounting position. This structure can improve the installation stability of the second detection device 15.

[0054] In one embodiment of the present disclosure, the trigger member 17 includes a connecting portion 171 and a shielding portion 172 arranged perpendicular to each other, the connecting portion 171 is connected to the other surface of the objective lens turntable 12, and the second detection device 15 is a photoelectric gate. A roughly horizontal slot 151 is formed on the side of the photoelectric gate away from the fixed seat. The objective lens turntable 12 rotates to drive the shielding portion 172 into one of the slots 151 to trigger the corresponding photoelectric gate.

[0055] In this embodiment, the trigger member 17 is a baffle, comprising a connecting portion 171 vertically connected to the other surface of the objective lens turntable 12, and a shielding portion 172 vertically bent and connected to the other end of the connecting portion 171. The structure is simple and easy to manufacture. The material of the shielding member can be plastic, metal, rubber, etc., which is not limited here. The shielding portion 172 and the connecting portion 171 can be an integrally molded structure, thereby improving structural strength and facilitating manufacture. The second detection device 15 is a photoelectric gate, which is roughly U-shaped and has an opening facing the peripheral side of the objective lens turntable 12. The upper and lower opposite sides of the opening are respectively a transmitting end and a receiving end, one of which is fixed to the fixed base 11. The opening between the opposite sides facilitates the passage of the shielding portion 172 during the rotation process. Because the photoelectric gate has a very fast reaction speed and high sensitivity, the detection efficiency of the objective lens detection device 10 can be improved. The coordination between the photoelectric gate and the baffle is simpler and requires no contact, which can reduce wear and improve performance. The coordinated detection of the two can be easily integrated with other systems and equipment, making it convenient for use in various scenarios. The shape and material of the baffle are not restricted, and the photoelectric gate can also be set to different attribute information as needed, thereby improving applicability.

[0056] In addition, in order to simplify the structure, a second circuit board is installed on the peripheral side of the fixed base 11. The circuit board is sleeved on the peripheral side of the fixed base 11. At least two photoelectric gates are fixed on the second circuit board and are electrically connected to the control component 16 through the second circuit board, so that the installation of the photoelectric gate is more stable, and the radial size of the shielding portion 172 in the fixed base 11 is reduced, thereby improving the structural stability; at the same time, it can also facilitate the electrical connection between the photoelectric gate and the control component 16 and facilitate wiring.

[0057] In one example, the control component includes a processor 161 and a memory 162, the memory being used to store pre-calibrated standard objective lens property information, and the processor being used to receive electrical signals from the first and second detection devices and process them according to the standard objective lens property information. The control component of this embodiment is a slave computer, which can be set at any position of the objective lens detection device. The memory stores the required pre-calibrated objective lens property information. The processor can control the operation of the driver and receive electrical signals from the first and second detection devices. It processes the data according to the stored content to obtain the required judgment result, and can transmit the result to other external control systems such as a host computer.

[0058] 1 , in one embodiment of the present disclosure, a tooth structure is formed on the circumference of the objective lens turret 12 . A driving end of the driving member 13 is connected to a driving gear 18 . The driving gear 18 engages with the tooth structure. The driving member 13 drives the driving gear 18 to rotate the objective lens turret 12 .

[0059] In this embodiment, the driving member 13 is a motor, the driving end of which is connected to a driving gear 18. The driving gear 18 is meshed with the tooth structure to transmit the power, resulting in a more efficient and stable rotation of the objective lens turret 12. Furthermore, the precision of the gear transmission is easily controlled, enabling precise control of the rotation angle and speed of the objective lens turret 12. Furthermore, the gears are highly wear-resistant, effectively extending the service life of the objective lens detection device 10 and reducing replacement and maintenance costs. In one example, a stepper motor can be selected as the motor, allowing its rotation angle to be further refined by the number of steps, thereby ensuring the accuracy of the position of the objective lens 30. In other examples, a belt drive or chain drive can also be selected. Alternatively, a hydraulic pump can be selected to achieve rotation of the objective lens turret 12 via a control valve.

[0060] 2 , the present disclosure further proposes a method for detecting an objective lens, which is applied to an objective lens detection device. The objective lens detection device is any of the objective lens detection devices 10 described above. The detection method includes the following steps S1 to S3 .

[0061] S1: Obtain the location information of the installation location.

[0062] S2: Control the first detection device to detect the corresponding installation position.

[0063] S3: Receive detection data from the first detection device, and determine whether an objective lens exists in the corresponding installation position and / or attribute information of the objective lens based on the detection data.

[0064] In the present embodiment, the position information of the mounting position obtained in step S1 can be determined by the second detection device 15 triggered by the trigger 17; the position information of the mounting position can also be set in advance and stored in the control component 16, which is not limited here. In step S2, the first detection device 14 is controlled to detect, and the direction of the corresponding mounting position can be photographed or emitted to detect laser light, which is not limited here, so as to obtain the image at the mounting position or the feedback time or phase difference of the received laser light. In step S3, the control component 16 receives the detection data and processes and determines whether there is an object lens 30 installed in the mounting position. The judgment here is based on the fact that some mounting positions can not install the object lens 30. Therefore, in the initialization detection, whether there is an object lens 30 in the mounting position can be conveniently avoided from idling in subsequent automated observations and improve detection efficiency. Alternatively, based on the fact that the mounting positions are all installed with object lenses 30, the object lens 30 is directly judged for its attribute information. The control component 16 processes the detection data, which can be compared with the standard parameters of each stored object lens 30, and the attribute information of the object lens 30 is judged, so as to provide a reference for observation data for subsequent automated observations.

[0065] In one embodiment of the present disclosure, the steps of controlling the first detection device to perform detection on the corresponding installation position; receiving the detection data of the first detection device, and judging whether the corresponding installation position has an objective lens and / or the attribute information of the objective lens based on the detection data include the following steps S231 to S234.

[0066] S231: Control the first detection device 14 to perform a first detection on the corresponding installation position.

[0067] S232: Receive first detection data from the first detection device 14, and determine whether the objective lens 30 exists at the corresponding installation position according to the first detection data.

[0068] S233: If yes, control the first detection device 14 to perform a second detection on the objective lens 30 .

[0069] S234: Receive the second detection data obtained by the first detection device 14, and determine the attribute information of the objective lens 30 according to the second detection data.

[0070] In the present embodiment, first control first detection device 14 is carried out first detection, can be by the direction of corresponding installation position being photographed or emitting detection laser, do not make limit here, thereby obtain the feedback time or phase difference of the image at installation position or the laser received, and send this as the first detection data of detection to control component 16. Then, control component 16 receives this first detection data, and processes and judges whether there is object lens 30 to be installed in this installation position, and the judgment here is based on that some installation positions can not install object lens 30, so in initialization detection whether this installation position has the existence of object lens 30, can conveniently avoid idling in subsequent automated observation, improve detection efficiency. Moreover, if the judgment result that control component 16 obtains is that there is object lens 30, then it is necessary to judge that object lens 30 is carried out attribute information, at this moment, object lens 30 can be carried out second detection by first detection device 14, and the detection of second time can be that first detection device 14 re-acquires the shape of object lens 30 different angles or the distance data of other positions, and sends it to control component 16, thereby provides better data basis for subsequent data processing. Finally, the control component 16 processes the second detection data and compares it with the stored standard parameters of each objective lens 30 to determine the attribute information of the objective lens 30. This embodiment can improve the efficiency of subsequent automated observation, avoid idle operation, and also make it easier to select an objective lens suitable for one of the attributes, thereby improving convenience.

[0071] Please refer to Figure 3. In one embodiment of the present disclosure, the first detection device 14 is a time-of-flight sensor, and the first detection data is single-point depth data. Step S232 of receiving the first detection data of the first detection device 14 and determining whether the objective lens 30 exists in the corresponding installation position based on the first detection data may specifically include the following steps S2321 to S2323.

[0072] S2321: Receive single-point depth data detected by the first detection device 14, where the single-point depth data is the distance between the first detection device 14 and the detected object.

[0073] S2322: Compare the single-point depth data to see whether it is less than or equal to a preset depth threshold.

[0074] S2323: If yes, determine whether the objective lens 30 exists in the corresponding installation position.

[0075] In this embodiment, the first detection device 14 is configured as a time-of-flight sensor, which transmits a laser to the position of the mounting position for distance detection. The data generated and captured by the time-of-flight sensor is very accurate, capable of achieving high-precision measurement, and has strong anti-interference capabilities, which can maintain stable detection performance. In addition, its low power consumption can effectively save energy. The single-point depth data received in step 2321, that is, the first detection device 14 transmits a laser point to a certain position of the detection object, such as the objective lens 30, and obtains the time difference or phase difference between the transmission and reception through laser reflection, thereby obtaining the distance between the two. In step 2322, the height of the first detection device 14 in the vertical direction corresponds to the height of the objective lens 30 installed in the mounting position. Therefore, when the objective lens 30 is installed at the mounting position, the distance between the first detection device 14 and the objective lens 30 is controlled within a certain numerical range. A preset depth threshold can be stored in the control component 16. By comparing the detected single-point depth data with the preset depth threshold, the presence or absence of the objective lens 30 can be determined, thereby simplifying the judgment logic. The preset depth threshold can be set according to actual needs. For example, the preset depth threshold can be the radius of the objective lens turret 12, or a specific numerical value. In other examples, the size of the stage can also be selected, which is not limited here. In step 2323, when the single-point depth data after comparison is less than or equal to the preset depth threshold, it means that the objective lens 30 is installed at the installation position. At this time, the result can be selectively fed back to the host computer. The simple comparison method of this numerical value can effectively simplify the algorithm processing logic and improve detection efficiency.

[0076] In one embodiment of the present disclosure, the method further includes: S2324: if not, generating a result indicating that there is no objective lens 30 in the corresponding installation position, and sending the result to a host computer for subsequent processing.

[0077] In this embodiment, when it is determined that no objective lens 30 is installed in a certain installation position, the result also needs to be uploaded to the corresponding host computer or application, thereby providing a program setting basis for subsequent automated observation, so that when the automated observation of the microscope is controlled by the application in the future, the program can be set to follow a conversion route that does not pass through the installation position, thereby improving observation efficiency and convenience.

[0078] Please refer to Figure 4. In one embodiment of the present disclosure, the first detection device 14 is a time-of-flight sensor. The steps of controlling the first detection device 14 to perform a second detection on the objective lens 30; receiving the second detection data obtained by the first detection device 14, and determining the attribute information of the objective lens 30 based on the second detection data may specifically include steps S2341 to S2343.

[0079] S2341: Control the first detection device 14 to perform depth detection on each area of ​​the objective lens 30 to obtain partition depth data;

[0080] S2342: Acquire the outline of the objective lens 30 obtained by performing point cloud computing based on the partitioned depth data by the first detection device 14, where the second detection data is the outline of the objective lens 30;

[0081] S2343 : Compare the profile of the objective lens 30 with the profile information of multiple calibration objective lenses 30 to confirm the attribute information of the objective lens 30 .

[0082] In this embodiment, when the first detection device 14 is a time-of-flight sensor, the attribute information of the objective lens 30 is determined by detecting the distance between the objective lens and the first detection device 14. Compared with other methods, this method can obtain three-dimensional information and the algorithm processing is simpler. In step 2341, the control component 16 controls the first detection device 14 to perform partitioned depth detection on the objective lens, that is, to emit lasers to different parts of the objective lens 30 to obtain distance data of different parts respectively, and multiple distance data form partitioned depth data. In step 2342, after the first detection device 14 obtains the partitioned depth data, point cloud computing is performed to obtain a three-dimensional profile of the objective lens 30. The profile of the objective lens 30 is the second detection data. After obtaining the second detection data, the control component 16 can compare it with the profile information of each calibration objective lens 30 stored internally. The logic is simple and the detection efficiency is improved.

[0083] In one embodiment of the present disclosure, the step of comparing the profile of the objective lens 30 with the profile information of the calibration objective lens to confirm the property information of the objective lens 30 includes at least the following steps S23431 and S23432.

[0084] S23431: Determine whether the profile of the objective lens 30 is consistent with the profile information of one of the calibration objective lenses;

[0085] S23432: If yes, then obtain the magnification information of the objective lens 30 according to the correspondence between the profile information and the magnification information of the calibrated objective lens.

[0086] In this embodiment, in S23431, the detected profile of the objective lens 30 is compared with the profile information of multiple calibration objective lenses. A numerical comparison can be performed based on parameters of the profile information, or an overlapping comparison of the profile images can be performed. The memory of the control component 16 stores the profiles of each calibration objective lens and the corresponding magnification information of the objective lens. In S23432, if the profile information of a particular calibration objective lens matches, it can be determined that the objective lens 30 installed in the mounting position has the magnification information of one of the calibration objective lenses.

[0087] After confirming the magnification information of the objective lens 30 at the corresponding position, the magnification information and position information of the objective lens 30 may be sent to the host computer, so as to provide more intuitive data for the subsequent automated setting of observation.

[0088] In other examples, other attribute information of the objective lens, such as size, length, manufacturer model, lens aperture ratio or working distance, can also be obtained by calibrating the correspondence between the profile information of the objective lens and other attribute information.

[0089] In one embodiment of the present disclosure, the objective lens detection device 10 further includes N second detection devices 15 and a trigger member 17, wherein the N second detection devices 15 are spaced apart on the circumferential side of the fixing seat 11, and each second detection device 15 is arranged corresponding to one of the mounting positions, and the trigger member 17 is arranged on the other surface of the objective lens turntable 12, wherein the second detection device 15 is a photoelectric gate, and the trigger member 17 is a baffle, wherein the position of one of the photoelectric gates is the main visual position, and the step of obtaining the position information of the mounting position includes the following S11 and S12.

[0090] S11: Acquire the electrical signal of the triggered photogate;

[0091] S12: According to the relative position relationship between each photoelectric gate and the main viewing position, position information of the installation position corresponding to the triggered photoelectric gate relative to the main viewing position is obtained.

[0092] In this embodiment, to obtain the position information of the corresponding mounting position, in step 11, the photoelectric gate generates an electrical signal when blocked by the blocking plate. The photoelectric gate transmits this electrical signal to the control component 16. After receiving this electrical signal, the control component 16 retrieves the relative position relationship between the photoelectric gate and the primary viewing position from the storage unit, thereby clearly indicating the position information of the mounting position corresponding to the blocked photoelectric gate relative to the primary viewing position. Because the first detection device 14 also has a corresponding relationship with the photoelectric gate, the position information of the first detection device 14 can be obtained. For example, when there are three mounting positions, namely mounting position a, mounting position b, and mounting position c, the number of photoelectric gates corresponding to each mounting position is also three, namely photoelectric gate 1, photoelectric gate 2, and photoelectric gate 3. Photoelectric gate 1 corresponds to the primary viewing position, i.e., the position used to observe the sample. Rotate the objective turret 12 so that the baffle blocks photoelectric gate 1. Photoelectric gate 1 sends an electrical signal to the control component 16, which can then obtain the name of the photoelectric gate. Based on the positional relationship between photoelectric gate 1 and the main viewing position, it can be seen that the mounting position a corresponding to the baffle and the objective lens 30 mounted therein are now in the main viewing position. Then, mounting position b is located at photoelectric gate 2, in the clockwise direction relative to the main viewing position, and mounting position c is located at the position of photoelectric gate 3, in the counterclockwise direction relative to the main viewing position. Assuming that the first detection device 14 is located in the main viewing position, corresponding to photoelectric gate 1 and mounting position a, the first detection device 14 can be controlled to detect the objective lens 30 in mounting position a. Subsequently, the objective turret can be rotated clockwise to position c in the main viewing position, and the first detection device can then be used to detect the objective lens in mounting position c. Similarly, the objective turret can be rotated clockwise to position b in the main viewing position, and the first detection device can then be used to detect the objective lens in mounting position b. After completion, the current status of the objective lens at each mounting position can be obtained. Alternatively, assuming that the first detection device 14 corresponds to photoelectric gate 3, then it corresponds to mounting position c, and the first detection device 14 can be controlled to detect the objective lens 30 at mounting position c. Subsequently, the objective turret can be rotated clockwise to align mounting position b with the first detection device, and then the objective lens at mounting position b can be detected using the first detection device. Similarly, the objective turret can be rotated clockwise to align mounting position a in the primary viewing position, and the objective lens at mounting position a can be detected using the first detection device. After completion, the current status of the objective lens at each mounting position can be obtained. Alternatively, the objective lens turntable 12 is rotated so that the baffle corresponds to blocking the photoelectric gate three, and the photoelectric gate three sends an electrical signal to the control component 16. The control component 16 can then obtain the name of the photoelectric gate, and based on the positional relationship between the photoelectric gate three and the main viewing position, it can be known that the installation position c corresponding to the baffle at this time is counterclockwise relative to the main viewing position, and the installation position a is at the photoelectric gate one, located at the main viewing position, and the installation position b is at the position of the photoelectric gate two, in the clockwise direction relative to the main viewing position.Assuming that the first detection device 14 is located at the main viewing position, it corresponds to the photoelectric gate 1 and the installation position a. At this time, the first detection device 14 can be controlled to detect the objective lens 30 at the installation position a.

[0093] For another example, when the baffle moves to a photoelectric gate, the photoelectric gate can generate an electrical signal after being blocked by the baffle, and send the electrical signal to the control component 16. After obtaining the electrical signal, the control component 16 retrieves the relative position relationship between the photoelectric gate and the main viewing position from the storage unit, so that the position information of the installation position corresponding to the triggered photoelectric gate relative to the main viewing position can be clearly understood. For example, if the triggered photoelectric gate is two photoelectric gates ahead of the main viewing position clockwise (i.e., there is one photoelectric gate between the triggered photoelectric gate and the main viewing position), then the objective lens behind the objective lens where the baffle is located and separated by one installation position currently corresponds to the photoelectric gate where the main viewing position is located. If the first detection device 14 corresponds to the main viewing position, then at this time, the situation of the objective lens in the main viewing position can be detected.

[0094] The method of acquiring the position information can ensure that the photoelectric gate that transmits the signal is always in a fixed state and does not need to be moved, thereby improving the stability of its transmission signal and improving the detection stability.

[0095] In addition, under special circumstances, when the initialization detection begins, if the electrical signal of the triggered photoelectric gate is not obtained, it means that the rotation position of the objective lens turntable 12 does not cause the baffle to block the photoelectric gate. Therefore, it is necessary to control the drive component 13 to operate and drive the objective lens turntable 12 to perform initialization operation so that the baffle is located in a blocking position of the photoelectric gate.

[0096] In one embodiment of the present disclosure, there are N first detection devices 14, and the N first detection devices 14 are correspondingly arranged to the N installation positions. The step of controlling the first detection devices 14 to detect the corresponding installation positions is: S21, controlling the N first detection devices 14 to detect the N installation positions respectively at the same time.

[0097] In this embodiment, the N first detection devices 14 are configured such that, at the beginning of initialization, the N first detection devices 14 are controlled to face N installation positions for detection. This improves detection efficiency, eliminates the need to control the driver 13, and simplifies the control logic. Furthermore, if a problem with an objective lens 30 requires replacement or removal, detection can be performed at any time, improving convenience.

[0098] After the initialization test is completed, the required objective lens is determined according to the required magnification, and then the driving member is controlled to rotate, and the required objective lens is determined to be moved to the main viewing position for observation according to the position of the photoelectric gate finally blocked by the baffle.

[0099] The present disclosure also provides a microscope including any of the above-described objective lens detection devices 10. Since the specific structure of the objective lens detection device 10 in this microscope adopts all the technical solutions of all the above-described embodiments, it also has all the beneficial effects brought about by the technical solutions of the above-described embodiments, which will not be described in detail here.

[0100] As will be appreciated, a microscope generally includes a stage for placing the sample to be observed. This stage is located below the objective lens 30, that is, below the objective turret 12. The stage can be connected to the fixed base 11 or provided as a separate main structure. Furthermore, the microscope may also include a base for supporting the entire device.

[0101] The above are only preferred embodiments of the present disclosure and are not intended to limit the patent scope of the present disclosure. All equivalent structural transformations made using the contents of the present disclosure and the drawings under the inventive concept of the present disclosure, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present disclosure.

Claims

1. An objective lens detection device (10), applied to a microscope, comprising: Fixed seat (11); An objective lens turret (12) is rotatably connected to the fixed seat, and a surface of the objective lens turret is provided with N mounting positions, the N mounting positions being circumferentially spaced; each mounting position is used to mount an objective lens (30), wherein N is a positive integer and is greater than or equal to 2; A driving member (13) drivingly connected to the objective lens turntable to drive the objective lens turntable to rotate relative to the fixing seat; a first detection device (14), which is arranged on a side of the fixing seat and is used to detect whether the installation position has an objective lens and / or objective lens property information; and A control component (16) is electrically connected to the driving member and the first detection device to control the operation of the driving member and the first detection device.

2. The objective lens detection device according to claim 1, wherein The first detection device is a time-of-flight sensor.

3. The objective lens detection device according to claim 1 or 2, characterized in that: The number of the first detection devices is N, and the N first detection devices are arranged in a one-to-one correspondence with the N installation positions.

4. The objective lens detection device according to any one of claims 1 to 3, characterized in that: A triggering member (17) is provided on the other surface of the objective lens turntable. The objective lens detection device further comprises N second detection devices (15). The N second detection devices are arranged at intervals on the circumference of the fixing seat. The second detection devices are arranged in a one-to-one correspondence with the mounting positions and are electrically connected to the control component. The second detection devices can be triggered by the triggering member and transmit signals to the control component.

5. The objective lens detection device according to claim 4, characterized in that: The triggering member comprises a connecting portion (171) and a shielding portion (172) arranged perpendicular to each other, the connecting portion being connected to the other surface of the objective lens turntable, the second detection device being a photoelectric gate, a substantially horizontal slot (151) being formed on a side of the photoelectric gate away from the fixing seat, the objective lens turntable being rotated to drive the shielding portion into one of the slots to trigger the corresponding photoelectric gate.

6. The objective lens detection device according to claim 4 or 5, characterized in that: The control component comprises a processor (161) and a memory (162), wherein the memory is used to store pre-calibrated standard objective lens property information, and the processor is used to receive electrical signals from the first detection device and the second detection device, and process the electrical signals according to the standard objective lens property information.

7. The objective lens detection device according to any one of claims 1 to 6, characterized in that: A tooth structure is formed on the peripheral side of the objective lens turntable, a driving end of the driving member is connected to a driving gear (18), the driving gear is meshed with the tooth structure, and the driving member drives the driving gear to drive the objective lens turntable to rotate.

8. A method for detecting an objective lens, applied to an objective lens detection device, wherein the objective lens detection device is the objective lens detection device (10) according to any one of claims 1 to 7, the method comprising: Obtaining (S1) location information of the installation location; controlling (S2) a first detection device (14) to detect a corresponding installation position; Receive (S3) detection data from the first detection device, and determine whether an objective lens (30) exists in the corresponding installation position and / or attribute information of the objective lens based on the detection data.

9. The method according to claim 8, characterized in that The controlling the first detection device to detect the corresponding installation position; receiving the detection data of the first detection device, and judging whether the corresponding installation position has an objective lens and / or the attribute information of the objective lens according to the detection data includes: Controlling (S231) the first detection device to perform a first detection on the corresponding installation position to generate first detection data; receiving ( S232 ) first detection data from the first detection device, and determining whether an objective lens exists in the corresponding installation position based on the first detection data; If yes, controlling (S233) the first detection device to perform a second detection on the objective lens to generate second detection data; Receive (S234) second detection data from the first detection device, and determine the attribute information of the objective lens based on the second detection data.

10. The method according to claim 9, characterized in that The first detection device (14) is a time-of-flight sensor, the first detection data is single-point depth data, Receiving (S232) first detection data of the first detection device, and determining whether the corresponding installation position has an objective lens according to the first detection data includes: Receive (S2321) single-point depth data of the first detection device, the single-point depth data being the distance between the first detection device and the detected object; Comparing ( S2322 ) whether the single-point depth data is less than or equal to a preset depth threshold; If so, it is determined (S2323) that an objective lens exists in the corresponding installation position.

11. The method according to claim 10, further comprising: If not, a result indicating that there is no objective lens at the corresponding installation position is generated (S2324) and sent to the host computer.

12. The method according to claim 9, characterized in that The first detection device is a time-of-flight sensor, controlling the first detection device to perform a second detection on the objective lens to generate second detection data; Receiving the second detection data from the first detection device, and determining the attribute information of the objective lens according to the second detection data includes: Controlling (S2341) the first detection device to perform depth detection on each area of ​​the objective lens to obtain partition depth data; Acquiring (S2342) a profile of the objective lens obtained by performing point cloud computing on the partitioned depth data by the first detection device, wherein the second detection data is the profile of the objective lens; The profile of the objective lens is compared (S2343) with profile information of a plurality of calibration objective lenses to confirm the property information of the objective lens.

13. The method according to claim 12, characterized in that The comparing the profile of the objective lens with the profile information of a plurality of calibration objective lenses to confirm the attribute information of the objective lens includes: Determining (S23431) whether the profile of the objective lens is consistent with the profile information of one of the calibration objective lenses; If so, the magnification information of the objective lens is obtained (S23432) based on the correspondence between the profile information and the magnification information of the calibration objective lens.

14. The method according to any one of claims 8 to 13, characterized in that The objective lens detection device further includes N second detection devices and a triggering member. The N second detection devices are arranged at intervals around the peripheral side of the fixing seat. The second detection devices are arranged in a one-to-one correspondence with the installation positions. The triggering member is arranged on the other surface of the objective lens turntable. The second detection device is a photoelectric gate, and the triggering member is a baffle. The position of one of the photoelectric gates is the primary visual position. The method of obtaining the position information of the installation position includes: Acquiring (S11) an electrical signal of the triggered photoelectric gate; According to the relative position relationship between each photoelectric gate and the main viewing position, position information of the installation position corresponding to the triggered photoelectric gate relative to the main viewing position is obtained (S12).

15. The method according to any one of claims 8 to 13, characterized in that There are N first detection devices, and the first detection devices are arranged corresponding to the installation positions. Controlling the first detection devices to detect the corresponding installation positions includes: Control the N first detection devices to perform detection on the N installation positions respectively at the same time.

16. A microscope comprising the objective lens detection device according to any one of claims 1 to 7.

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