CN207008177U - A kind of micro imaging system - Google Patents
A kind of micro imaging system Download PDFInfo
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- CN207008177U CN207008177U CN201720875557.9U CN201720875557U CN207008177U CN 207008177 U CN207008177 U CN 207008177U CN 201720875557 U CN201720875557 U CN 201720875557U CN 207008177 U CN207008177 U CN 207008177U
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Abstract
A kind of micro imaging system, including light source, the first lens group, the first diaphragm, the second diaphragm, the second lens group, imaging pond, microcobjective, the 3rd lens group, the camera being sequentially arranged along optical axis；The light source, the first lens group, the first diaphragm, the second diaphragm, the second lens group form Kohler illumination unit；The microcobjective, the 3rd lens group, camera form imaging unit；The Kohler illumination unit has the first numerical aperture, and the microcobjective has second value aperture；First numerical aperture and the ratio in the second value aperture are not more than 1/3.The utility model suitably reduces illumination numerical aperture, and the contrast of image is improved in the case of the resolution ratio of image is acceptable, is advantageous to shoot high-speed motion cell and the processing of follow-up picture analyzing.
Description
Technical field
The present invention relates to micro-imaging field, more particularly to the visible component analyzer of application plane streaming imaging technique
In micro imaging system.
Background technology
Plane streaming imaging technique is fine particle in a kind of analysis liquid（Such as cell）Technology, its composition form is liquid
Streaming system, illuminator, imaging system, control system.Liquid fluid system is made up of sample pool and pipeline portions；Illuminator is by light
Source and Kohler illumination microscope group composition；Imaging system is made up of microcobjective, attachment objective and camera；Control system coordinated management is shone
Bright system, liquid fluid system, imaging system cooperate.
Using the visible component analytical instrument of plane streaming imaging technique, its liquid fluid system can make containing cell to be analyzed
Liquid flowed with very high speed at the focal plane of micro imaging system, this seasonal illuminator is given containing cell to be analyzed
Liquid is illuminated, and imaging system quickly captures the image of cell to be analyzed.Cell in liquid be similar to it is translucent, in order to
Image quality is improved, beneficial to the processing to cell in image, the contrast of imaging should be improved.What existing microscopic system obtained
Image resolution ratio was not only relevant but also relevant with illumination numerical aperture with the numerical aperture of microcobjective, and illumination numerical hole is required in use
Footpath and microcobjective numerical aperture match, and the numerical aperture of illumination are generally adjusted to 0.8 times of numerical aperture of objective, so
Can obtain the image of high-resolution and appropriate contrast simultaneously, but so fit system be only applicable to observe and shoot it is static or
The slow cell of person's translational speed, and it is fast for plane streaming imaging technique, signaling speed, if still matching somebody with somebody in this way
The numerical aperture of illumination and imaging is put, the picture contrast photographed is very low, is unfavorable for subsequently to the analyzing and processing of picture.
Utility model content
For overcome the deficiencies in the prior art, the purpose of the present invention is that invention is a kind of for the tangible of plane streaming imaging technique
The illuminator of analytical instrument, it is intended in the case of realizing high speed micro-imaging, overcome some shortcomings of the prior art, carry
High gained picture contrast.
To achieve the above object, the present invention is achieved through the following technical solutions：
A kind of micro imaging system, including light source, the first lens group, the first diaphragm, the second light being sequentially arranged along optical axis
Door screen, the second lens group, imaging pond, microcobjective, the 3rd lens group, camera；The light source, the first lens group, the first diaphragm,
Two diaphragms, the second lens group form Kohler illumination unit；The microcobjective, the 3rd lens group, camera form imaging unit；Institute
Stating Kohler illumination unit has the first numerical aperture, and the microcobjective has second value aperture；First numerical aperture
It is not more than 1/3 with the ratio in the second value aperture.
Further, first lens group, including at least a piece of convex lens, equivalent focal length be on the occasion of.
Further, second lens group, including at least a piece of convex lens, equivalent focal length be on the occasion of.
Further, the 3rd lens group, including at least a piece of convex lens and a piece of concavees lens, equivalent focal length is just
Value.
Further, in the Kohler illumination system, in addition to even optical lens, the even optical lens are arranged at described first
Between lens group and first diaphragm.
Further, the even mating plate is frosted glass plate, fly's-eye lens, one of in light diffusing sheet.
Further, in the Kohler illumination unit, in addition to optical filtering microscope group, the optical filtering microscope group are arranged at described second
Between diaphragm and second lens group.
Further, the optical filtering microscope group includes optical band filter, and the optical band filter is coloured glass, optical filter
One of them.
Further, the optical filtering microscope group also includes light intensity filter, the light intensity filter be attenuator, polarizer wherein
One of.
Beneficial effects of the present invention：It is appropriate to reduce illumination numerical aperture, carried in the case of the resolution ratio of image is acceptable
The contrast of hi-vision, be advantageous to shoot high-speed motion cell and the processing of follow-up picture analyzing.
Brief description of the drawings
Fig. 1 is the structural representation of the micro imaging system of the present invention.
Fig. 2 is the structural representation of the first embodiment of the present invention.
Fig. 3 is the structural representation of the second embodiment of the present invention.
Fig. 4 is the structural representation of the third embodiment of the present invention.
Fig. 5 is the structural representation of the fourth embodiment of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
Referring to the drawings shown in 1, the light source 101, the first lens group 102, the first diaphragm 103, second that are sequentially arranged along optical axis
Diaphragm 104, the second lens group 105, imaging pond 2, microcobjective 301, the 3rd lens group 302, camera 303 form the aobvious of the present invention
The basic structure of micro- imaging system.Wherein, light source 101, the first lens group 102, the first diaphragm 103, the second diaphragm 104, second
Lens group 105 forms Kohler illumination unit 1；Microcobjective 301, the 3rd lens group 302, camera 303 form imaging unit 3.Ke
Strangling lighting unit 1 has the first numerical aperture；Microcobjective 301 has second value aperture；First numerical aperture and the second number
The ratio for being worth aperture is less than 1/3.
First lens group 102, including at least a piece of convex lens, and the equivalent focal length of the lens group is on the occasion of can be with equivalent
For a piece of convex lens.
Second lens group 105, including at least a piece of convex lens, and the equivalent focal length of the lens group is on the occasion of can be with equivalent
For a piece of convex lens.
3rd lens group 302, including at least a piece of convex lens and a piece of concavees lens, and the equivalent focal length of the lens group is just
Value, can be equivalent to a piece of convex lens.
In order to further improve the uniformity of illumination, can be added in Kohler illumination unit 1 makes the even of equalizing light rays
Optical lens 106.The even optical lens 106, is arranged between the first lens group 102 and the first diaphragm 103.Even optical lens 106 can be with
Using one of frosted glass plate, fly's-eye lens, light diffusing sheet.
In order to obtain more preferable imaging effect, in the case where luminous flux is enough, optical band and light intensity can typically be carried out
Screening, optical filtering microscope group 107 is added in Kohler illumination unit 1.The optical filtering microscope group 107, including optical band filter 107a, optical band
Filter 107a is one of coloured glass piece, optical filter.Optical filtering microscope group 107 also includes light intensity filter 107b, light intensity filter
107b is one of attenuator, polarizer.
The first embodiment of the present invention, as shown in Figure 2, the light source 101 that is sequentially arranged along optical axis, the first lens group 102,
First diaphragm 103, the second diaphragm 104, the second lens group 105 constitute Kohler illumination unit 1；Microcobjective 301, the 3rd lens
Group 302, camera 303 form imaging unit 3；Kohler illumination unit 1, imaging pond 2, imaging unit 3 form the present invention it is micro- into
As system.Wherein, the first lens group 102 only have a piece of convex lens, focal length be on the occasion of；Second lens group 105 only has a piece of convex lens
Mirror, focal length be on the occasion of；3rd lens group 302 is made up of two panels lens, wherein a piece of is convex lens, another is concavees lens, always
Focal length be on the occasion of；The enlargement ratio of microcobjective 301 is 20 times, and corresponding second value aperture is 0.4；Kohler illumination unit 1
The first numerical aperture be 0.1；First numerical aperture and the ratio in second value aperture are 0.1/0.4=0.25, and the numerical value is less than
1/3.In the present embodiment, the second diaphragm 104 of Kohler illumination unit 1, a diameter of 5mm of its light hole；Second lens group 105
Focal length is 25mm.
The second embodiment of the present invention, as shown in Figure 3, the light source 101 that is sequentially arranged along optical axis, the first lens group 102,
Even optical lens 106, the first diaphragm 103, the second diaphragm 104, optical filtering microscope group 107, the second lens group 105 constitute Kohler illumination list
Member 1；Microcobjective 301, the 3rd lens group 302, camera 303 form imaging unit 3；Kohler illumination unit 1, imaging pond 2, imaging
Unit 3 forms the micro imaging system of the present invention.Wherein, the first lens group 102 by two panels convex lens group into the group of two panels lens
Conjunction is equivalent to convex lens, equivalent focal length be on the occasion of；Second lens group 105 is made up of two panels lens, wherein a piece of is convex lens, separately
A piece of is concavees lens, and the combinations of two panels lens is equivalent to convex lens, equivalent focal length be on the occasion of；3rd lens group 302 is by two group three
Piece lens form, and one of which is the glue and lens of meniscus composition, and another group of lens are a piece of concavees lens, lens group etc.
Imitate focal length be on the occasion of；The enlargement ratio of microcobjective 301 is 40 times, and corresponding second value aperture is 0.65；Kohler illumination list
First numerical aperture of member 1 is 0.2；The ratio in the first numerical aperture and second value aperture is 0.2/0.65=0.308, the number
Value is less than 1/3.In the present embodiment, the second diaphragm 104 of Kohler illumination unit 1, a diameter of 8mm of its light hole；Second lens
The focal length of group 105 is 20mm.The even optical lens 106 used in the present embodiment is frosted glass plate；Optical filtering microscope group 107 uses optical filter
As optical band filter 107a, using polarizer as light intensity filter 107b.
The third embodiment of the present invention, as shown in Figure 4, the light source 101 that is sequentially arranged along optical axis, the first lens group 102,
Even optical lens 106, the first diaphragm 103, the second diaphragm 104, optical filtering microscope group 107, the second lens group 105 constitute Kohler illumination list
Member 1；Microcobjective 301, the 3rd lens group 302, camera 303 form imaging unit 3；Kohler illumination unit 1, imaging pond 2, imaging
Unit 3 forms the micro imaging system of the present invention.Wherein, the first lens group 102 only has a piece of convex lens；Second lens group 105
It is made up of two panels lens, one is convex lens, and another is concavees lens, and the combination of two panels lens is equivalent to convex lens, equivalent focal length
For on the occasion of；3rd lens group 302 is made up of three groups of four lens, and one of which is a piece of concavees lens, and one group is convex lens and recessed
Lens combination into glue and lens, another group is a piece of convex lens, equivalent focal length be on the occasion of；The enlargement ratio of microcobjective 301
For 60 times, corresponding second value aperture is 0.75；First numerical aperture of Kohler illumination unit 1 is 0.25；First numerical aperture
The ratio in footpath and second value aperture is 0.25/0.75=0.333, and the numerical value is equal to 1/3.In the present embodiment, Kohler illumination list
Second diaphragm 104 of member 1, a diameter of 8mm of its light hole；The focal length of second lens group 105 is 16mm.Used in the present embodiment
Even optical lens 106 is fly's-eye lens；Optical filtering microscope group 107, as optical band filter 107a, is decayed using coloured glass using neutrality
Piece is as light intensity filter 107b.
The fourth embodiment of the present invention, as shown in Figure 5, the light source 101 that is sequentially arranged along optical axis, the first lens group 102,
Even optical lens 106, the first diaphragm 103, the second diaphragm 104, optical filtering microscope group 107, the second lens group 105 constitute Kohler illumination list
Member 1；Microcobjective 301, the 3rd lens group 302, camera 303 form imaging unit 3；Kohler illumination unit 1, imaging pond 2, imaging
Unit 3 forms the micro imaging system of the present invention.First lens group 102 by two panels convex lens group into, be equivalent to convex lens, it is equivalent
Focal length be on the occasion of；Second lens group 105 is by two panels convex lens group into the combination of two panels lens is equivalent to convex lens, equivalent focal length
For on the occasion of；3rd lens group 302 is made up of three groups of four lens, and one of which is a piece of concavees lens, and one group is concavees lens and convex
Lens combination into glue and lens, another group is a piece of convex lens, equivalent focal length be on the occasion of；The enlargement ratio of microcobjective 301
For 100 times, corresponding second value aperture is 1.25；First numerical aperture of Kohler illumination unit 1 is 0.4；First numerical aperture
The ratio in footpath and second value aperture is 0.4/1.25=0.32, and the numerical value is less than 1/3.In the present embodiment, Kohler illumination unit
1 the second diaphragm 104, a diameter of 8mm of its light hole；The focal length of second lens group 105 is 10mm.What is used in the present embodiment is even
Optical lens 106 is light diffusing sheet；Optical filtering microscope group 107 uses optical filter as optical band filter 107a, not using light intensity filter
107b。
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, it is of the invention and unlimited
In specific details and shown here as the legend with description.
Claims (9)
1. a kind of micro imaging system, including be sequentially arranged along optical axis light source, the first lens group, the first diaphragm, the second diaphragm,
Second lens group, imaging pond, microcobjective, the 3rd lens group, camera；The light source, the first lens group, the first diaphragm, second
Diaphragm, the second lens group form Kohler illumination unit；The microcobjective, the 3rd lens group, camera form imaging unit；It is described
Kohler illumination unit has the first numerical aperture, and the microcobjective has second value aperture；Characterized in that, described first
Numerical aperture and the ratio in the second value aperture are not more than 1/3.
2. micro imaging system according to claim 1, it is characterised in that first lens group, including it is at least a piece of
Convex lens, equivalent focal length be on the occasion of.
3. micro imaging system according to claim 1, it is characterised in that second lens group, including it is at least a piece of
Convex lens, equivalent focal length be on the occasion of.
4. micro imaging system according to claim 1, it is characterised in that the 3rd lens group, including it is at least a piece of
Convex lens and a piece of concavees lens, equivalent focal length be on the occasion of.
5. micro imaging system according to claim 1, it is characterised in that in the Kohler illumination unit, in addition to it is even
Optical lens, the even optical lens are arranged between first lens group and first diaphragm.
6. micro imaging system according to claim 5, it is characterised in that the even optical lens is frosted glass plate, compound eye
One of in lens, light diffusing sheet.
7. micro imaging system according to claim 1, it is characterised in that in the Kohler illumination unit, in addition to filter
Light microscopic group, the optical filtering microscope group are arranged between second diaphragm and second lens group.
8. micro imaging system according to claim 7, it is characterised in that the optical filtering microscope group includes optical band filter,
The optical band filter is one of coloured glass, optical filter.
9. micro imaging system according to claim 8, it is characterised in that the optical filtering microscope group also includes light intensity filter,
The light intensity filter is one of attenuator, polarizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720875557.9U CN207008177U (en) | 2017-07-19 | 2017-07-19 | A kind of micro imaging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720875557.9U CN207008177U (en) | 2017-07-19 | 2017-07-19 | A kind of micro imaging system |
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| Publication Number | Publication Date |
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| CN207008177U true CN207008177U (en) | 2018-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720875557.9U Expired - Fee Related CN207008177U (en) | 2017-07-19 | 2017-07-19 | A kind of micro imaging system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389535A (en) * | 2017-07-18 | 2017-11-24 | 深圳小孚医疗科技有限公司 | A kind of means of illumination of micro-imaging illuminator |
-
2017
- 2017-07-19 CN CN201720875557.9U patent/CN207008177U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389535A (en) * | 2017-07-18 | 2017-11-24 | 深圳小孚医疗科技有限公司 | A kind of means of illumination of micro-imaging illuminator |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 Termination date: 20210719 |
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| CF01 | Termination of patent right due to non-payment of annual fee |