Microscopic system magnification measuring device
By using a microscope system magnification measurement device, which utilizes an image sensor to display the reticle scale and combines it with a fine-tuning knob, the problem of time-consuming and eye-intensive traditional microscope magnification measurement is solved, achieving efficient and accurate magnification measurement.
Patent Information
- Application Number
- CN202520546187.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Traditional methods for measuring microscope magnification are time-consuming, require a lot of eye strain, and are inefficient, resulting in large errors in the measurement results.
A microscope system magnification measuring device was designed, comprising a microscope tube, a reticle holder, a lens group, an image sensor camera, and a support. The reticle holder inside the microscope tube is connected to the microscope head, and the image sensor camera displays the reticle scale on the screen. Precise adjustment is achieved by combining the fine adjustment knob device.
It simplifies the measurement process, improves work efficiency, reduces human error, and ensures the accuracy and reliability of measurement results.
Smart Images
Figure CN223808101U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to microscope measuring appliance technical field especially a kind of microsystem magnification measuring device. BACKGROUND
[0002] At present, in the field such as semiconductor detection, biomedical research, forensic evidence, material science, microscope is often used to measure the size of microstructure, such as cell diameter, nanometer circuit defect, fiber, etc., and the magnification of microscope needs to be accurately controlled, otherwise systematic error will occur in measurement result, leading to wrong research conclusion, out-of-control product quality or legal dispute problem. Therefore, in laboratory or industrial quality inspection, microscope needs to be calibrated regularly to meet international standards, to avoid that the nominal magnification of microscope, i.e. objective lens magnification×variable magnification×eyepiece magnification, may not match the actual value due to manufacturing error, optical system aging or assembly deviation. By actually measuring magnification, the real magnification of microscope can be verified to ensure that it meets the accuracy requirement of research or industrial detection. The traditional measurement method is to observe the standard micrometer scale on object plane with eyepiece with scale micrometer scale, then adjust microscope until two scales are aligned, and the actual length of the position where the scale lines are aligned is read respectively, so that actual magnification=eyepiece scale display value / micrometer scale actual value. The traditional measurement method using eyepiece is time-consuming and inefficient. SUMMARY
[0003] The utility model aims at providing a kind of microsystem magnification measuring device, it can solve the problem of time-consuming and inefficient of the existing microsystem magnification measuring method.
[0004] To solve the above problems, the utility model adopts the technical scheme as follows: the microsystem magnification measuring device has a lens barrel and a support installed on a workbench, a lens group is installed in the upper part of the lens barrel, a reticle seat is installed in the lower part of the lens barrel, and a first reticle is arranged on the reticle seat; an interface for connecting with the fine adjustment knob device on the upper end of the microscope head to be measured is arranged at the lower end of the reticle seat; an image sensor camera is connected to the top end of the lens barrel; a second reticle is arranged on the workbench vertically downward from the lens barrel.
[0005] In the above technical scheme, the more specific technical scheme can be as follows: the axial section of the reticle seat is in the shape of a boss, the convex part of the upper segment of the reticle seat extends into the lens barrel, and a V-shaped groove is arranged on the outer diameter of the convex part, a plurality of counterbores are symmetrically arranged on the wall of the lens barrel corresponding to the V-shaped groove, and recessed set screws are arranged in the counterbores; the outer diameter of the shoulder of the lower segment of the reticle seat is equal to the outer diameter of the lens barrel, and the bottom end of the lens barrel is arranged on the shoulder of the reticle seat; the first reticle is installed in the concave ring arranged at the top end of the reticle seat.
[0006] Further, the interface of the lower end of the reticle seat is provided with an internal thread, which is connected with the external thread of the fine adjustment knob device of the upper end of the measured microscope lens.
[0007] Further, the side wall of the lens barrel at the position where the lens group is installed is provided with an annular step, and the bottom end of the lens group is press-connected on the annular step and fixed by a press ring at the top end.
[0008] Further, the image sensor camera is a CMOS camera or a CCD camera.
[0009] Further, the first reticle and the second reticle are reticles with the same specification.
[0010] Further, the support has a clamping arm extending forward, and a clamping head for clamping the microscope barrel body is arranged at the front end of the clamping arm.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] 1. The image sensor camera is connected to the top end of the lens barrel, the second reticle placed on the workbench is enlarged and imaged on the first reticle through the measured microscope lens, the image enlarged by the first reticle and the second reticle is imaged on the target surface of the image sensor camera through the lens group and displayed on the display screen at the same time, and the scale lines and values of the two reticles can be clearly seen by the operator on the display screen, so that the measurement process is greatly simplified, the work efficiency is improved, and fatigue and errors caused by manual observation are reduced.
[0013] 2. The first reticle is installed on the reticle seat, the center of the scale value of the first reticle is adjusted to the center of the imaging surface displayed on the display through the cooperation of the V-shaped groove and the counterbore on the upper end of the lens barrel wall and the lower end of the reticle seat and the use of the plurality of female end set screws, and the imaging clarity is fine adjusted by the fine adjustment knob device between the measured microscope lens and the lens barrel, so that the adjustment and positioning in the measurement process are more accurate, and the reliability of the measurement result is further improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 is a structural schematic view of the utility model.
[0015] Figure 2 is a top view of the first reticle of the utility model.
[0016] Figure 3 is Figure 1 is an enlarged view of A of
[0017] Figure 4It is the schematic view of the first division plate and the second division plate being enlarged together projected on the display screen.
[0018] Serial number explanation:
[0019] CMOS camera 1, lens group 2, first division plate 3, concave end set screw 4, fine adjustment knob device 5, measured microscope head 6, second division plate 7, division plate seat 8, convex part 8-1, V-shaped groove 8-2, shoulder 8-3, lens barrel 9, annular step 9-1, support 10, clamping arm 10-1, clamping head 10-2, workbench 11, pressing ring 12. DETAILED DESCRIPTION
[0020] In order to make the above-mentioned purposes, features and advantages of the utility model more easily understood, the technical scheme in the utility model embodiment will be clearly and completely explained in combination with the drawings in the utility model embodiment. In the following description, a lot of specific details are set forth in order to give a thorough understanding of the utility model, but the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, therefore the utility model is not limited by the specific embodiments disclosed below.
[0021] In the utility model, unless there are explicit provisions and limitations, the terms such as "installation", "connection", "fixation" and the like should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or be integrated; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances.
[0022] As Figure 1 , Figure 2The illustrated microscope system magnification measuring device has a lens barrel 9 and a support 10 mounted on a workbench 11, the support 10 has a forwardly extending clamping arm 10-1, at the front end of the clamping arm is a clamping head 10-2 for clamping the microscope barrel body, the lens group 2 is mounted in the upper part of the lens barrel 9, the magnification of the lens group is 1 times, the use of the lens group with 1 times magnification ensures the clarity of the two reticle scale values on the display screen and the measurement range of the magnification, which can better adapt to the measured microscope lens of different magnifications, and can effectively implement the magnification measurement of the microscope in various application scenarios, and has wide applicability; the reticle seat 8 is mounted in the lower part of the lens barrel, and the first reticle 3 is arranged on the reticle seat; the lower end of the reticle seat 8 is provided with an interface for connecting with the fine adjustment knob device 5 on the upper end of the measured microscope lens 6, the interface is provided with an internal thread, and the internal thread is adapted to the external thread of the fine adjustment knob device 5 on the upper end of the measured microscope lens 6; the top end of the lens barrel 9 is connected with an image sensor camera, which is a CMOS camera 1 or a CCD camera, and the imaging on the display screen is convenient for observation, and the operator can clearly see the scale lines and values of the two reticles on the display screen, which greatly simplifies the measurement process, improves the work efficiency, and reduces the fatigue and errors caused by human observation; the second reticle 7 is arranged on the workbench 11 vertically downward of the lens barrel 9, and the first reticle 3 and the second reticle 7 are reticles with the same specifications, as shown in Figure 3 The axial section of the reticle seat 8 is in the form of a boss, the convex part 8-1 of the upper segment of the reticle seat extends into the lens barrel 9, and the outer diameter of the convex part 8-1 is provided with a V-shaped groove 8-2, three counterbores are symmetrically arranged on the wall of the lens barrel 9 corresponding to the V-shaped groove 8-2, and the counterbores are provided with recessed end set screws 4, the center of the first reticle scale value is adjusted to the center position of the imaging surface displayed on the display by using the three recessed end set screws, and at the same time, the fine adjustment knob device between the measured microscope lens and the lens barrel is rotatably adjusted to fine adjust the imaging clarity, thereby further improving the reliability of the measurement result; the outer diameter of the shoulder 8-3 of the lower segment of the reticle seat 8 is equal to the outer diameter of the lens barrel 9, the inner diameter of the bottom end of the lens barrel 9 is pressed on the top end of the convex part, and the outer diameter of the bottom end of the lens barrel 9 is arranged on the shoulder 8-3 of the reticle seat; the first reticle 3 is mounted in the recessed ring arranged at the top end of the reticle seat 8; the side wall of the lens barrel 9 at the position where the lens group 2 is mounted is provided with an annular step 9-1, and the bottom end of the lens group 2 is pressed on the annular step 9-1, and the lens group 2 is fixed by a pressing ring 12 at the top end.
[0023] To measure the magnification of the microscope lens under test, first clamp the microscope lens 6 under test within the clamping head 10-2 of the support 10, and adjust it securely. Then screw the lower connector of this device onto the fine-tuning knob device at the upper end of the microscope lens under test. Adjust the three concave-end set screws so that the center of the first reticle grid value is at the center of the image surface displayed on the monitor. Rotate the fine-tuning knob device to fine-tune the image clarity to make the image on the screen clearer. Then move the second reticle placed on the worktable left, right, back, and forth and observe the screen to make the center of the second reticle grid value also at the center of the image surface. Figure 4 As shown, by reading the number of divisions at the aligned positions of the scale lines on the display screen, the size of the image of the second reticle after magnification by the microscope under test and the size of the first reticle can be obtained. The measurement value of the first reticle is the one with a larger range and denser scale lines displayed on the display screen, while the measurement value of the second reticle after magnification by the microscope under test is the one with a smaller range and sparser scale lines displayed on the display screen. Then, the magnification of the microscope under test is calculated using the following formula: Magnification of the microscope under test = Number of divisions of the first reticle / Number of divisions of the second reticle. From the values shown in the figure, it can be seen that the magnification of the microscope under test is: 10 ÷ 5 = 2, that is, the microscope under test has a magnification of 2 times.
Claims
1. A microscope system magnification measurement apparatus, characterized by: The utility model discloses a microscope with a lens barrel and a support installed on a workbench, a lens group is installed in the upper part of the lens barrel, a reticle seat is installed in the lower part of the lens barrel, a first reticle is arranged on the reticle seat, an interface for connecting with a fine adjustment knob device on the upper end of a microscope head is arranged on the lower end of the reticle seat, an image sensor camera is connected to the top end of the lens barrel, and a second reticle is arranged on the workbench vertically below the lens barrel.
2. The microscopic system magnification measuring device of claim 1, wherein: The axial section of the reticle seat is in the shape of a boss, the convex part of the upper section of the reticle seat extends into the lens barrel, a V-shaped groove is arranged on the outer diameter of the convex part, a plurality of counterbores are symmetrically arranged on the wall of the lens barrel at positions corresponding to the V-shaped groove, recessed set screws are arranged in the counterbores, the outer diameter of the shoulder of the lower section of the reticle seat is equal to the outer diameter of the lens barrel, the bottom end of the lens barrel is arranged on the shoulder of the reticle seat, and the first reticle is installed in the concave ring arranged on the top end of the reticle seat.
3. The microscope system magnification measuring apparatus according to claim 1 or 2, characterized by: The interface on the lower end of the reticle seat is provided with internal threads, and the internal threads are connected with external threads of the fine adjustment knob device on the upper end of the microscope head.
4. The microscopic system magnification measuring device of claim 1, wherein: A ring-shaped step is arranged on the side wall of the lens barrel at the position where the lens group is installed, the bottom end of the lens group is crimped on the ring-shaped step, and the top end of the lens group is fixed by a compression ring.
5. The microscopic system magnification measuring device of claim 1, wherein: The image sensor camera is a CMOS camera or a CCD camera.
6. The microscopic system magnification measuring device of claim 1 or 2, wherein: The first reticle and the second reticle are reticles with the same specifications.
7. The microscopic system magnification measuring device of claim 1, wherein: The support has a clamping arm extending forward, and a clamping head for clamping the microscope barrel body is arranged on the front end of the clamping arm.