CN212905686U - Optical conduction device suitable for full-automatic microbial microscopic examination - Google Patents
Optical conduction device suitable for full-automatic microbial microscopic examination Download PDFInfo
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- CN212905686U CN212905686U CN202022106992.XU CN202022106992U CN212905686U CN 212905686 U CN212905686 U CN 212905686U CN 202022106992 U CN202022106992 U CN 202022106992U CN 212905686 U CN212905686 U CN 212905686U
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Abstract
The utility model discloses an optical conduction device suitable for full-automatic microbiological microscopic examination, which comprises an objective lens, a light source, a first light source and a second light source, wherein the objective lens is positioned above an objective table and is provided with a first end and a second end; the focusing mechanism is connected with the objective lens and is used for enabling the objective lens to move up and down along the optical axis of the objective lens; the tube lens is fixedly arranged above the objective lens and is provided with a third end and a fourth end, and the third end is opposite to the second end of the objective lens; a receiver connected to the fourth end of the tube mirror; and under the action of the focusing mechanism, the distance between the second end of the objective lens and the third end of the tube lens is changed between 10 and 13 mm. The utility model adds the reflector in the tube lens to turn the light path, thereby effectively reducing the volume of the whole microscope; meanwhile, the structure that the objective lens and the tube lens are separated from each other is adopted, the upper position and the lower position of the objective lens can be independently adjusted, the focusing precision is improved, the phenomenon that the conduction vibration causes camera imaging smear is avoided, and the imaging quality of full-automatic microbial microscopic examination is guaranteed.
Description
Technical Field
The utility model belongs to the technical field of microorganism microscopic examination equipment technique and specifically relates to an optics conduction device suitable for full-automatic microorganism microscopic examination is related to.
Background
The existing full-automatic microbial microscope is obtained by modifying an ordinary microscope, a motor control system is usually required to be added on an objective table to enable the objective table to move autonomously, and an electronic camera and the like are arranged at one end of a tube lens to receive observed images. The common microscope is designed based on human eye observation, the objective lens and the tube lens are combined together and are vertically arranged above the objective table in a linear shape, when focusing is carried out, the objective lens and the tube lens move simultaneously, and the improved objective lens is connected with the electronic camera, so that the objective lens, the tube lens and the camera of the full-automatic microscope are of an integrated structure, the height of the whole microscope is increased, the size is large, the focusing precision is reduced, especially when a motor runs to generate vibration, the vibration of a light path is easily caused, the deviation of an optical lens is easily caused, imaging has a smear, the detection precision is reduced, and even an effective detection result cannot be obtained.
Disclosure of Invention
In order to solve the problem, the utility model provides an optics conduction device suitable for full-automatic microorganism microscopic examination specifically can take following technical scheme:
optical conduction device suitable for full-automatic microbial microscopic examination, include
An objective lens located above the objective table and having a first end and a second end, the first end being disposed opposite the light source;
the focusing mechanism is connected with the objective lens and is used for enabling the objective lens to move up and down along the optical axis of the objective lens;
the tube lens is fixedly arranged above the objective lens and is provided with a third end and a fourth end, and the third end is opposite to the second end of the objective lens;
a receiver connected to the fourth end of the tube mirror;
and under the action of the focusing mechanism, the distance between the second end of the objective lens and the third end of the tube lens is changed between 10 and 13 mm.
A reflector is arranged in the tube mirror.
The reflecting mirror is a plane mirror which is obliquely arranged, and the plane mirror and the third end central axis and the fourth end central axis of the tube mirror respectively form an included angle of 45 degrees.
The light source is an Abbe illumination light source, and the NA value of the light source is between 0.6 and 1.2.
The objective is an infinite flat field achromatic objective with an NA between 0.4 and 1.2 and a magnification between 20 and 100.
The magnification of the tube lens is 0.5 or 1.
The target surface area of the receiver is between 1/2 inches and 2/3 inches when the magnification of the tube mirror is 0.5.
The target surface area of the receiver is between 1 inch and 4/3 inches when the magnification of the tube mirror is 1.
The receiver is a CMOS or CCD chip camera, the resolution of the receiver is between 500 and 2100 million pixels, and the frame rate is between 15 and 100 frames per second.
The utility model provides an optical conduction device suitable for full-automatic microorganism microscopic examination, which adds a reflector in a tube mirror to turn the light path, effectively reduces the volume of the whole microscope and is convenient for installation and fixation; meanwhile, the structure that the objective lens and the tube lens are separated from each other is adopted, the upper position and the lower position of the objective lens can be independently adjusted, the focusing precision is improved, the phenomenon that the conduction vibration causes camera imaging smear is avoided, and the imaging quality of full-automatic microbial microscopic examination is guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a diagram of a light propagation path in fig. 1.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the embodiments are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following embodiments.
Optical conduction device suitable for full-automatic little biological mirror is examined, constitute by objective, pipe mirror, receiver and focusing mechanism etc. wherein, objective and pipe mirror separation, position about objective can the independent adjustment, device overall structure is simple, easily control, and the precision is guaranteed.
Specifically, a focusing mechanism 1 capable of ascending and descending in a micron order is mounted on a microscope frame body as shown in fig. 1, an infinite flat field achromatic objective lens 2 is fixed on an ascending and descending plate of the focusing mechanism 1, the NA value of the objective lens is between 0.4 and 1.2, and the magnification is between 20 and 100. The objective lens 2 is located above the slide of the stage Z and can move up and down along its optical axis by the focusing mechanism 1. The two ends of the objective lens 2 are respectively a first end and a second end, the first end is arranged right opposite to the light source, and the 'right direction' means that the optical axis of the objective lens 2 is superposed with the central optical axis of the light source G. Still install the fixed tube lens 3 that is located objective 2 top on the microscope support body, its both ends are third end and fourth end respectively, and the third end sets up with objective 2's second end relatively, and under focusing mechanism 1's effect, the interval of objective 2's second end and tube lens 3 third end changes between 10-13 mm. The fourth end of tube mirror 3 links firmly with receiver 4 mutually, in order to reduce the microscope height, reduces microscopical whole volume, and this tube mirror 3 adopts L shape structure, and a flat mirror 5 of putting to one side is installed to its middle department of bending. The plane mirror 5 and the third end central axis and the fourth end central axis of the tube mirror 3 respectively form an included angle of 45 degrees, so that light rays are reflected by 90 degrees. The light source G is generally an abbe illumination source with an NA value between 0.4 and 1.2. The tube lens 3 is matched with the objective lens 2, and the magnification factor is usually 0.5 or 1; accordingly, the receiver 4 is a CMOS or CCD chip camera with a resolution between 500 and 2100 million pixels and a frame rate between 15 and 100 frames/second. The target surface area of the receiver 4 is between 1/2 inches and 2/3 inches when the magnification of the tube mirror 3 is 0.5; when the magnification of the tube mirror 3 is 1, the target surface area of the receiver 4 is between 1 inch and 4/3 inches.
When the microscope is used, a glass slide containing a sample to be detected is placed on an objective table Z, the objective lens 2 is moved up and down through the focusing mechanism 1, after focusing is clear, the objective lens is imaged on a camera (namely a receiver 4) through the tube lens 3, after photographing of the camera is finished, whether the objective lens meets the standard or not is judged through relevant software, and if the objective lens does not meet the standard, the objective lens 2 is continuously controlled to be finely adjusted until the objective lens meets the requirement; if the field of view is changed, the slide glass is moved to the target position on the objective table Z, and the process is repeated until the process is completed.
It should be noted that in the description of the present invention, terms of orientation or positional relationship such as "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Claims (9)
1. The utility model provides an optics conduction device suitable for full-automatic microorganism microscopic examination which characterized in that: comprises that
An objective lens located above the objective table and having a first end and a second end, the first end being disposed opposite the light source;
the focusing mechanism is connected with the objective lens and is used for enabling the objective lens to move up and down along the optical axis of the objective lens;
the tube lens is fixedly arranged above the objective lens and is provided with a third end and a fourth end, and the third end is opposite to the second end of the objective lens;
a receiver connected to the fourth end of the tube mirror;
and under the action of the focusing mechanism, the distance between the second end of the objective lens and the third end of the tube lens is changed between 0 and 3 mm.
2. The optical transmission device suitable for the full-automatic microbial microscopy according to claim 1, wherein: a reflector is arranged in the tube mirror.
3. The optical transmission device suitable for the full-automatic microbial microscopy according to claim 2, wherein: the reflecting mirror is a plane mirror which is obliquely arranged, and the plane mirror and the third end central axis and the fourth end central axis of the tube mirror respectively form an included angle of 45 degrees.
4. The optical transmission device suitable for the full-automatic microbial microscopy according to claim 1, wherein: the light source is an Abbe illumination light source, and the NA value of the light source is between 0.6 and 1.2.
5. The optical transmission device suitable for the full-automatic microbial microscopy according to claim 1, wherein: the objective is an infinite flat field achromatic objective with an NA between 0.4 and 1.2 and a magnification between 20 and 100.
6. The optical transmission device suitable for the full-automatic microbial microscopy according to claim 1, wherein: the magnification of the tube lens is 0.5 or 1.
7. The optical transmission device suitable for the full-automatic microbial microscopy according to claim 6, wherein: the target surface area of the receiver is between 1/2 inches and 2/3 inches when the magnification of the tube mirror is 0.5.
8. The optical transmission device suitable for the full-automatic microbial microscopy according to claim 6, wherein: the target surface area of the receiver is between 1 inch and 4/3 inches when the magnification of the tube mirror is 1.
9. The optical transmission device suitable for the full-automatic microbial microscopy according to claim 1, wherein: the receiver is a CMOS or CCD chip camera, the resolution of the receiver is between 500 and 2100 million pixels, and the frame rate is between 15 and 100 frames per second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022106992.XU CN212905686U (en) | 2020-09-23 | 2020-09-23 | Optical conduction device suitable for full-automatic microbial microscopic examination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022106992.XU CN212905686U (en) | 2020-09-23 | 2020-09-23 | Optical conduction device suitable for full-automatic microbial microscopic examination |
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| Publication Number | Publication Date |
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| CN212905686U true CN212905686U (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022106992.XU Active CN212905686U (en) | 2020-09-23 | 2020-09-23 | Optical conduction device suitable for full-automatic microbial microscopic examination |
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| CN (1) | CN212905686U (en) |
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- 2020-09-23 CN CN202022106992.XU patent/CN212905686U/en active Active
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