CN220252273U - Microscope objective lens adjusting mechanism - Google Patents
Microscope objective lens adjusting mechanism Download PDFInfo
- Publication number
- CN220252273U CN220252273U CN202321495385.4U CN202321495385U CN220252273U CN 220252273 U CN220252273 U CN 220252273U CN 202321495385 U CN202321495385 U CN 202321495385U CN 220252273 U CN220252273 U CN 220252273U
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- adjusting
- lens
- adjusting plate
- mirror arm
- screws
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- 238000003384 imaging method Methods 0.000 abstract description 5
- 230000003287 optical effect Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000386 microscopy Methods 0.000 description 1
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- Microscoopes, Condenser (AREA)
- Lenses (AREA)
Abstract
An objective lens adjusting mechanism of a microscope relates to the technical field of optical microscopic imaging, and comprises a lens base and a lens cone, wherein a lens arm is fixed on the lens base, an objective lens is arranged at the lower end of the lens cone, and an eyepiece is arranged at the upper end of the lens cone; the adjustable mirror comprises a mirror arm, and is characterized in that a movable adjusting plate is arranged on the mirror arm, at least three set screws and at least three adjusting through holes which are vertically communicated are arranged on the mirror arm, the adjusting screws are arranged in the adjusting through holes, the adjusting screws are in clearance fit with the adjusting through holes, the nut of each adjusting screw abuts against the upper surface of the mirror arm, the lower ends of the adjusting screws are in threaded connection with the adjusting plate, springs are sleeved on the adjusting screws, the upper ends of the springs abut against the mirror arm, and the lower ends of the springs abut against the adjusting plate; the set screw is in threaded connection with the mirror arm, a gap is reserved between the lower end of the set screw and the adjusting plate, and the set screw can be screwed until the lower end of the set screw abuts against the adjusting plate; the adjusting plate is provided with an inserting hole, the lens barrel penetrates through the inserting hole from top to bottom in a movable fit mode, and the adjusting plate is provided with a locking bolt for fixing the lens barrel.
Description
Technical Field
The utility model belongs to the technical field of optical microscopic imaging, and relates to a microscope objective lens adjusting mechanism.
Background
In microscopy, the perpendicular between the optical axis of the objective and the sample has a crucial effect on the quality of the microscopic imaging. If the optical axis of the objective lens is not perpendicular to the sample, the focal plane of the objective lens is not on the surface of the sample, so that the image blurring phenomenon is generated due to the out-of-focus of the image, and the accuracy of the observation result of the microscope is affected. In the prior art, the microscope generally adopts a mode of improving the machining precision of parts and using a special assembly fixture to ensure the perpendicularity between the objective lens and the sample, and has high cost and no economy.
Disclosure of Invention
Aiming at the defects in the prior art, the technical problem to be solved by the utility model is to provide the microscope objective lens adjusting mechanism which has a simple structure and is easy to realize and can reduce the processing and assembling costs of parts.
In order to solve the technical problems, the utility model provides a microscope objective lens adjusting mechanism, which comprises a lens base and a lens cone, wherein a lens arm is fixed on the lens base, an objective lens is arranged at the lower end of the lens cone, and an eyepiece is arranged at the upper end of the lens cone, and the microscope objective lens adjusting mechanism is characterized in that:
the adjustable mirror comprises a mirror arm, and is characterized in that a movable adjusting plate is arranged on the mirror arm, at least three set screws and at least three adjusting through holes which are vertically communicated are arranged on the mirror arm, the adjusting screws are arranged in the adjusting through holes, the adjusting screws are in clearance fit with the adjusting through holes, the nut of each adjusting screw abuts against the upper surface of the mirror arm, the lower ends of the adjusting screws are in threaded connection with the adjusting plate, springs are sleeved on the adjusting screws, the upper ends of the springs abut against the mirror arm, and the lower ends of the springs abut against the adjusting plate; the set screw is in threaded connection with the mirror arm, a gap is reserved between the lower end of the set screw and the adjusting plate, and the set screw can be screwed until the lower end of the set screw abuts against the adjusting plate; the adjusting plate is provided with an inserting hole, the lens barrel penetrates through the inserting hole from top to bottom in a movable fit mode, and the adjusting plate is provided with a locking bolt for fixing the lens barrel.
According to the microscope objective lens adjusting mechanism provided by the utility model, the adjusting plate is additionally arranged between the lens cone and the lens arm, the perpendicularity of the objective lens is adjusted by screwing the adjusting screw on the lens arm by utilizing the matching of the adjusting screw on the lens arm and the spring, and the distance between the adjusting plate and the lens arm can be locked by the set screw.
Drawings
Fig. 1 is a schematic structural view of an objective lens adjusting mechanism of a microscope of the present utility model.
Fig. 2 is a schematic view of the structure of the mirror arm of the microscope objective adjusting mechanism of the present utility model.
Fig. 3 is a schematic structural view of an adjusting plate of the microscope objective adjusting mechanism of the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, but the examples are not intended to limit the utility model, and all the similar structures and similar variations using the utility model are included in the scope of the utility model, and the reference numerals in the utility model indicate the same relationship.
As shown in fig. 1 to 3, the microscope objective adjusting mechanism provided by the embodiment of the utility model comprises a lens base 8 and a lens cone 2, wherein a lens arm 3 is fixed on the lens base 8, an objective lens 1 is installed at the lower end of the lens cone 2, and an eyepiece 9 is installed at the upper end of the lens cone 2, and is characterized in that:
the adjustable mirror is characterized in that a movable adjusting plate 4 is arranged on the mirror arm 3, three set screws 7 and three adjusting through holes which are vertically communicated are arranged on the mirror arm 3, an adjusting screw 5 is arranged in the adjusting through holes, the adjusting screw 5 and the adjusting through holes are in clearance fit, the diameter of a nail cap of the adjusting screw 5 is larger than that of the adjusting through holes, the nail cap of the adjusting screw 5 is positioned on the upper surface of the mirror arm 3, the lower end of the adjusting screw 5 is in threaded connection with the adjusting plate 4, a spring 6 is sleeved on the adjusting screw 5, the upper end of the spring 6 props against the mirror arm 3, and the lower end of the spring 6 props against the adjusting plate 4; the set screw 7 is in threaded connection with the mirror arm 3, a gap is formed between the lower end of the set screw 7 and the adjusting plate 4, and the set screw 7 can be screwed until the lower end of the set screw 7 abuts against the adjusting plate 4; the adjusting plate 4 is provided with a jack 41, the lens barrel 2 passes through the jack 41 from top to bottom in a movable fit mode, and a radial locking bolt 42 for fixing the lens barrel 2 is arranged in the side wall of the jack 41.
In other embodiments of the present utility model, the number of the set screws and the adjusting screws may be more than three.
The application method of the embodiment of the utility model is as follows:
the sample is put into the objective table to be fixed, and the sample is located under the objective lens 1, an operator observes the imaging of the sample in the objective lens 1 through the eyepiece 9, when in use, the adjusting screw 5 is screwed to level the adjusting plate 4 through the cooperation of the adjusting screw 5 and the spring 6, then the perpendicularity of the objective lens 2 is adjusted, after the leveling is finished, the setting screw 7 is screwed to enable the lower end of the adjusting plate to prop against the adjusting plate 4, at the moment, the distance between the adjusting plate 4 and the lens arm 3 is locked, even if external force acts, the perpendicularity of the objective lens 1 cannot be easily changed, and the operator can observe clear imaging through the eyepiece 9.
Claims (1)
1. The utility model provides a microscope objective adjustment mechanism, includes lens stand and lens cone, be fixed with the mirror arm on the lens stand, objective is installed to the lower extreme of lens cone, and eyepiece, its characterized in that are installed to the upper end of lens cone:
the adjustable mirror comprises a mirror arm, and is characterized in that a movable adjusting plate is arranged on the mirror arm, at least three set screws and at least three adjusting through holes which are vertically communicated are arranged on the mirror arm, the adjusting screws are arranged in the adjusting through holes, the adjusting screws are in clearance fit with the adjusting through holes, the nut of each adjusting screw abuts against the upper surface of the mirror arm, the lower ends of the adjusting screws are in threaded connection with the adjusting plate, springs are sleeved on the adjusting screws, the upper ends of the springs abut against the mirror arm, and the lower ends of the springs abut against the adjusting plate; the set screw is in threaded connection with the mirror arm, a gap is reserved between the lower end of the set screw and the adjusting plate, and the set screw can be screwed until the lower end of the set screw abuts against the adjusting plate; the adjusting plate is provided with an inserting hole, the lens barrel penetrates through the inserting hole from top to bottom in a movable fit mode, and the adjusting plate is provided with a locking bolt for fixing the lens barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321495385.4U CN220252273U (en) | 2023-06-13 | 2023-06-13 | Microscope objective lens adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321495385.4U CN220252273U (en) | 2023-06-13 | 2023-06-13 | Microscope objective lens adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220252273U true CN220252273U (en) | 2023-12-26 |
Family
ID=89265392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321495385.4U Active CN220252273U (en) | 2023-06-13 | 2023-06-13 | Microscope objective lens adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220252273U (en) |
-
2023
- 2023-06-13 CN CN202321495385.4U patent/CN220252273U/en active Active
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