Microscope automatic focusing system
By integrating a laser focus sensor and an electric slide on the microscope, the objective lens position is automatically adjusted, solving the inconvenience of manual focusing of the microscope and achieving efficient and accurate autofocus effects.
Patent Information
- Application Number
- CN202422941614.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-30
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-30
AI Technical Summary
Existing microscopes require manual focusing, which makes operation inconvenient, especially under high-magnification objectives where the depth of field is small and it is difficult to focus quickly and accurately.
A laser focus sensor and an electric slide are used together. The laser focus sensor determines the image clarity and drives the electric slide to adjust the position of the objective lens to achieve automatic focusing.
The automatic focus of the microscope is realized, which improves the operation efficiency and focus accuracy and reduces the difficulty of manual adjustment.
Smart Images
Figure CN223450251U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to microscope technical field, concretely relates to a microscope automatic focusing system. BACKGROUND
[0002] Microscope is used for enlarging micro object for person or detector can see the instrument, often use larger objective lens to obtain more details, but the objective lens ratio used is larger, the depth of field of system is smaller, microscope often needs to focus in the use process, however, the common microscope in the prior art is often manual focusing. UTILITY MODEL CONTENT
[0003] (1) the technical problem to be solved
[0004] In view of the prior art's insufficient, the utility model discloses a microscope automatic focusing system, which has the advantages of automatic focusing.
[0005] (2) technical scheme
[0006] In order to solve the above technical problem, the utility model provides a microscope automatic focusing system, which comprises:
[0007] Microscope light source shell;
[0008] Laser focusing sensor, the laser focusing sensor is fixedly installed on the microscope light source shell;
[0009] Objective lens mounting plate, the objective lens mounting plate is arranged below the microscope light source shell;
[0010] Electric sliding table, the electric sliding table is arranged on the microscope light source shell, and the electric sliding table is used to drive the objective lens mounting plate to move and realize the focusing of the objective lens.
[0011] Preferably, the electric sliding table comprises a fixed plate fixedly installed on the microscope light source shell, a first U-shaped plate is fixedly installed on the side of the fixed plate away from the microscope light source shell, and a nut seat is fixedly installed on the side of the first U-shaped plate away from the fixed plate.
[0012] Further, the first U-shaped plate is provided with a second U-shaped plate on the side away from the fixed plate, the upper surface of the second U-shaped plate is fixedly installed with a connecting horizontal plate, and the side of the second U-shaped plate away from the first U-shaped plate is fixedly installed with a connecting vertical plate.
[0013] Further, the side of the connecting vertical plate is fixedly provided with an L-shaped mounting plate, the L-shaped mounting plate is fixedly provided with a driving motor, the output shaft of the driving motor penetrates through the L-shaped mounting plate and extends to the upper side of the L-shaped mounting plate, and the output shaft of the driving motor is fixedly provided with a driving wheel.
[0014] Further, the nut seat is threadedly connected with a screw rod, the top end of the screw rod penetrates through the connecting horizontal plate and extends to the upper side of the connecting horizontal plate, the screw rod is rotatably arranged on the connecting horizontal plate through a bearing, the top end of the screw rod is fixedly connected with a driven wheel, and the driven wheel is in transmission connection with the driving wheel through a belt.
[0015] Further, gaps are reserved between the first U-shaped plate and the second U-shaped plate and between the nut seat and the second U-shaped plate.
[0016] Further, the objective lens mounting plate is fixedly arranged on the bottom of the connecting vertical plate.
[0017] Further, gaps are reserved between the L-shaped mounting plate and the driving motor and the fixed plate, and gaps are reserved between the L-shaped mounting plate, the driving motor and the connecting horizontal plate and the first U-shaped plate.
[0018] Beneficial effects
[0019] Compared with the prior art, the microscope has the beneficial effects that:
[0020] The microscope comprises a laser focusing sensor arranged on the microscope light source shell, an objective lens arranged on the objective lens mounting plate and an electric sliding table. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 is a perspective view of the microscope.
[0022] Figure 2 is a front view of the microscope.
[0023] Figure 3 is a partial structure view of the electric sliding table.
[0024] Figure 4 is another view of the microscope.
[0025] Figure 5 is an automatic focusing logic diagram of the microscope.
[0026] The marks in the drawings are: 1, microscope light source shell; 2, laser focusing sensor; 3, objective lens mounting plate; 4, electric sliding table; 401, fixed plate; 402, first U-shaped plate; 403, nut seat; 404, second U-shaped plate; 405, connecting horizontal plate; 406, connecting vertical plate; 407, L-shaped mounting plate; 408, driving motor; 409, driving wheel; 410, screw rod; 411, driven wheel; 412, belt. DETAILED DESCRIPTION
[0027] The specific embodiment is a microscope automatic focusing system, a structural schematic diagram of which is shown in the figure. Figures 1-4 The microscope automatic focusing system comprises a microscope light source shell 1, a laser focusing sensor 2, an objective lens mounting plate 3 and an electric sliding table 4. An interface for installing a tube lens is formed on the microscope light source shell 1, which can install a tube lens or an ocular lens. The laser focusing sensor 2 is fixedly installed on the microscope light source shell 1. The objective lens mounting plate 3 is arranged below the microscope light source shell 1. An opening is formed on the objective lens mounting plate 3, and the position of the opening corresponds to the position of the interface on the microscope light source shell 1. The objective lens mounting plate 3 is used for installing an objective lens. The electric sliding table 4 is arranged on the microscope light source shell 1. The electric sliding table 4 is used for driving the objective lens mounting plate 3 to move to realize focusing of the objective lens.
[0028] The utility model discloses a laser focusing sensor 2 is added on the microscope light source shell 1. After the objective lens is installed on the objective lens mounting plate 3, the whole is installed on the electric sliding table 4. When the objective lens images, the laser focusing sensor 2 can judge whether the imaging is clear. If the imaging is clear, the focusing is completed on the focusing surface. If the imaging is not clear, the electric sliding table 4 adjusts the position of the objective lens mounting plate 3 and the objective lens to realize automatic focusing.
[0029] The electric sliding table 4 comprises a fixed plate 401 fixedly installed on the microscope light source shell 1. A first U-shaped plate 402 is fixedly installed on the side of the fixed plate 401 away from the microscope light source shell 1. A nut seat 403 is fixedly installed on the middle of the side of the first U-shaped plate 402 away from the fixed plate 401.
[0030] The microscope light source shell 1 supports and fixes the fixed plate 401. The fixed plate 401 supports and fixes the first U-shaped plate 402. The first U-shaped plate 402 supports and fixes the nut seat 403. Therefore, the fixed plate 401, the first U-shaped plate 402 and the nut seat 403 are fixed.
[0031] The second U-shaped plate 404 is provided with a connecting horizontal plate 405 on the upper surface, and a connecting vertical plate 406 is fixedly installed on the side away from the first U-shaped plate 402. The objective lens mounting plate 3 is fixedly installed on the bottom of the connecting vertical plate 406.
[0032] The side of the connecting vertical plate 406 is fixedly installed with an L-shaped mounting plate 407, and the driving motor 408 is fixedly installed on the L-shaped mounting plate 407. The output shaft of the driving motor 408 penetrates through the L-shaped mounting plate 407 and extends above the L-shaped mounting plate 407, and the output shaft of the driving motor 408 is fixedly installed with a driving wheel 409.
[0033] The screw rod 410 is threadedly connected to the nut seat 403, the top end of the screw rod 410 penetrates through the connecting horizontal plate 405 and extends above the connecting horizontal plate 405, and the screw rod 410 is rotatably installed on the connecting horizontal plate 405 through a bearing. The top end of the screw rod 410 is fixedly connected with a driven wheel 411, and the driven wheel 411 is in transmission connection with the driving wheel 409 through the belt 412.
[0034] When the objective lens is imaging, the laser focusing sensor 2 judges whether the imaging is clear. If the imaging is not clear, the driving motor 408 starts to drive the driving wheel 409 to rotate. When the driving motor 408 drives the driving wheel 409 to rotate clockwise, the driving wheel 409 drives the driven wheel 411 to rotate through the belt 412 in the rotating process, and the driven wheel 411 drives the screw rod 410 to rotate in the rotating process. Since the screw rod 410 is threadedly connected with the nut seat 403, the nut seat 403 is fixedly arranged, and the screw rod 410 is rotatably installed on the connecting horizontal plate 405 through a bearing, the screw rod 410 can drive the connecting horizontal plate 405 to move downward synchronously in the rotating process, the connecting horizontal plate 405 can drive the second U-shaped plate 404 to move downward in the moving process, and the second U-shaped plate 404 can drive the connecting vertical plate 406 to move downward in the moving process, and the objective lens mounting plate 3 and the objective lens can move downward.
[0035] Similarly, when the driving motor 408 drives the driving wheel 409 to rotate counterclockwise, the objective lens mounting plate 3 and the objective lens can be driven to move upward.
[0036] Therefore, the position of the objective lens can be automatically adjusted by the driving of the driving motor 408, so that the objective lens realizes automatic focusing.
[0037] The first U-shaped plate 402 and the second U-shaped plate 404 are left with a gap, and the nut seat 403 and the second U-shaped plate 404 are left with a gap. Through the arrangement of the above gap, the upward and downward movement of the second U-shaped plate 404 is not affected.
[0038] The L-shaped mounting plate 407 and the driving motor 408 are spaced apart from the fixed plate 401, and the L-shaped mounting plate 407, the driving motor 408 and the connecting horizontal plate 405 are spaced apart from the first U-shaped plate 402;
[0039] The connecting vertical plate 406 can drive the L-shaped mounting plate 407 to move when the connecting vertical plate 406 moves, and the L-shaped mounting plate 407 can drive the driving motor 408, the driving wheel 409, the belt 412 and the driven wheel 411 to move synchronously when the L-shaped mounting plate 407 moves downward, and the movement of the L-shaped mounting plate 407, the driving motor 408 and the connecting horizontal plate 405 will not be affected by the above-mentioned gaps.
[0040] All the technical features in the embodiment can be freely combined according to actual needs.
[0041] The above-mentioned embodiment is a preferred implementation scheme of the utility model, and the utility model can also be implemented in other ways, and any obvious replacement without departing from the technical scheme concept is within the protection scope of the utility model.
Claims
1. A microscope autofocus system, characterized by: The microscope autofocus system includes: Microscope light source housing (1); A laser focus sensor (2), wherein the laser focus sensor (2) is fixedly mounted on the microscope light source housing (1); An objective lens mounting plate (3), the objective lens mounting plate (3) being arranged below the microscope light source housing (1); An electric slide (4) is provided on a microscope light source housing (1), and is used for driving an objective lens mounting plate (3) to move to achieve focusing of the objective lens.
2. The microscope autofocus system according to claim 1, characterized in that: The electric slide (4) comprises a fixing plate (401) fixedly mounted on the microscope light source housing (1); a first U-shaped plate (402) is fixedly mounted on a side of the fixing plate (401) away from the microscope light source housing (1); and a nut seat (403) is fixedly mounted on the middle part of a side of the first U-shaped plate (402) away from the fixing plate (401).
3. The microscope autofocus system according to claim 2, characterized in that: A second U-shaped plate (404) is provided on a side of the first U-shaped plate (402) away from the fixed plate (401); a connecting horizontal plate (405) is fixedly installed on the upper surface of the second U-shaped plate (404); and a connecting vertical plate (406) is fixedly installed on a side of the second U-shaped plate (404) away from the first U-shaped plate (402).
4. The microscope autofocus system according to claim 3, characterized in that: An L-shaped mounting plate (407) is fixedly mounted on the side of the connecting vertical plate (406), a driving motor (408) is fixedly mounted on the L-shaped mounting plate (407), an output shaft of the driving motor (408) passes through the L-shaped mounting plate (407) and extends to the top of the L-shaped mounting plate (407), and a driving wheel (409) is fixedly mounted on the output shaft of the driving motor (408).
5. The microscope autofocus system according to claim 4, characterized in that: A screw rod (410) is threadedly connected to the nut seat (403), the top end of the screw rod (410) passes through the connecting transverse plate (405) and extends to the top of the connecting transverse plate (405), and the screw rod (410) is rotatably mounted on the connecting transverse plate (405) through a bearing, and the top end of the screw rod (410) is fixedly connected to a driven wheel (411), and the driven wheel (411) is connected to the driving wheel (409) through a belt (412).
6. The microscope autofocus system according to claim 5, characterized in that: A gap is left between the first U-shaped plate (402) and the second U-shaped plate (404), and a gap is left between the nut seat (403) and the second U-shaped plate (404).
7. The microscope autofocus system according to claim 6, characterized in that: The objective lens mounting plate (3) is fixedly mounted on the bottom of the connecting vertical plate (406).
8. The microscope autofocus system according to claim 4, characterized in that: There are gaps between the L-shaped mounting plate (407), the driving motor (408) and the fixed plate (401), and there are gaps between the L-shaped mounting plate (407), the driving motor (408) and the connecting transverse plate (405) and the first U-shaped plate (402).