CN108828759A - A kind of enlargement ratio continues adjustable microscopic imaging device - Google Patents
A kind of enlargement ratio continues adjustable microscopic imaging device Download PDFInfo
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- CN108828759A CN108828759A CN201810555920.8A CN201810555920A CN108828759A CN 108828759 A CN108828759 A CN 108828759A CN 201810555920 A CN201810555920 A CN 201810555920A CN 108828759 A CN108828759 A CN 108828759A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/24—Base structure
- G02B21/241—Devices for focusing
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Abstract
The present invention relates to micro-imaging field, a kind of enlargement ratio is provided and continues adjustable microscopic imaging device.The device includes the coaxial light source set gradually, sample area, preposition module, trunk module, postposition module and imaging area；Wherein trunk module and postposition module can adjust single unit system amplification factor by the relative position of adjusting activity eyeglass.The experimental provision has open sample space, can be by the whole enlargement ratio of lasting adjusting, and then effectively controls field range, obtains the experimental data of different resolution.
Description
Technical field
The present invention relates to a kind of microscopic imaging devices, and in particular to a kind of lasting adjustable micro-imaging dress of enlargement ratio
It sets, belongs to micro-imaging field.
Background technique
Micro-imaging has become the main means of sample observation at present, it is advantageous that the sample of micro-meter scale can be observed
Product, and introduce light source and carry out optic test.Conventional optical microscope needs to reach by replacement object lens the interruption of enlargement ratio
Property adjust, observation space is small, suitable for short distance observe small volume sample, the biggish object of volume can not be observed.
Summary of the invention
In view of this, the present invention, which provides a kind of enlargement ratio, continues adjustable microscopic imaging device, there is flexible structure, see
Survey the advantages that area space is big, enlargement ratio range is continuously adjustable, field range is adjustable, operating process is simple, quick.
The enlargement ratio continues adjustable microscopic imaging device：It coaxial light source, imaging area and sets gradually
Sample area, preposition module, trunk module and postposition module between coaxial light source and imaging area；
The coaxial light source is for providing uniform illumination；
The sample area in the front of the coaxial light source is arranged in sample to be imaged；
The preposition module includes：The first lens group being sequentially coaxially arranged from the object side to image side and the second lens；It is described
First lens group includes more than one lens, entirety be equivalent to convex surface towards object side, concave surface towards image side meniscus；Institute
State the second lens be concave surface towards object side, convex surface towards image side concave-convex lens；First lens group position is fixed, and second thoroughly
Mirror can be along its axial translation；
The trunk module includes：The third lens being sequentially coaxially arranged from the object side to image side and the 4th lens；Wherein
Three lens are biconcave lens；4th lens are plano-convex lens of the convex surface towards image side；The third lens position is fixed, and the 4th thoroughly
Mirror can be along its axial translation；
The postposition module includes：The 5th lens group being sequentially coaxially arranged from the object side to image side and the 6th lens；It is described
5th lens group includes more than one lens, and entirety is equivalent to convex surface towards the plano-convex lens of object side, and the 6th lens are
Concave surface towards object side, convex surface towards image side concave-convex lens；5th lens group position is fixed, and the 6th lens can be along its axis
To translation；
It is taken pictures by camera to sample to be tested the imaging area.
Beneficial effect
(1) microscopic imaging device proposed by the present invention (can pass through shifting according to the big minor adjustment enlargement ratio of laboratory sample
Dynamic second lens group and the 4th lens are realized), regulate and control observation area；And it is adjusted by the position of eyeglass and realizes that imaging device is continuous
Property enlargement ratio adjust, adjust experiment field range, it is easy to operate, quick, flexible.
(2) device proposed by the present invention has open observation space, may be implemented compared with large sample, such as holds and play internal combustion
Pattern is burnt, the microscopic observation of fluidised form, nano wire etc. in fuel injector nozzle.
Detailed description of the invention
Fig. 1 is that enlargement ratio of the invention continues adjustable microscopic imaging device schematic diagram；
A is transparent nozzle interior flow schematic diagram to be observed under low enlargement ratio in Fig. 2, B be under high magnification to
The transparent nozzle interior flow schematic diagram of observation.
Wherein：1- light source, 2- fuel injector, 3- nozzle, the preposition module of 4-, the first lens group of 41-, the second lens of 42-, 43--
Sliding rail A, 5- trunk module, 51- the third lens, the 4th lens of 52-, 53- sliding rail B, 6- postposition module, the 5th lens group of 61-,
The 6th lens of 62-, 63- sliding rail C, 7- camera
Specific embodiment
It elaborates with reference to the accompanying drawing to the preferred embodiment of the present invention, the embodiment listed herein is it
Middle one kind can not represent whole embodiments.
The present embodiment provides a kind of enlargement ratios to continue adjustable microscopic imaging device, as shown in Figure 1, the micro-imaging fills
Set including：Coaxial light source 1, imaging area and the sample area being successively set between coaxial light source 1 and imaging area, preposition module 4,
Trunk module 5 and postposition module 6.
Wherein coaxial light source 1 is used as back light, provides uniform illumination for device.
Sample area is arranged in the front of coaxial light source 1, and for providing experimental subjects, oil spout is arranged in sample area in the present embodiment
Device 2, fuel injector tip nozzle 3 are organic glass material, and sample to be imaged is the oil in the starting of fuel injector tip nozzle 3 0-2cm
Fluid in beam and transparent nozzle can obtain nozzle 3 and originate the development of oily beam in 0-2cm, fluidised form change in transparent nozzle
Change and the burning of oily beam.
For preposition module 4 for converging the light beam that coaxial light source 1 is issued, preposition module 4 can pass through different lens combinations
Reach different focal length and numerical aperture, preposition module 4 includes：Preposition eyeglass mould group and sliding rail A43, in preposition eyeglass mould group 4, from
Object side (side where sample area) is followed successively by the first lens group 41 and the second lens of coaxial arrangement to image side (side where imaging area)
42.Wherein the first lens group 41 includes more than one lens, and entirety is equivalent to convex surface towards object side, concave surface towards the convex of image side
Concavees lens (can be such as single convex surface towards object side, concave surface towards the meniscus of image side or by a convex surface towards object side, recessed
Facing towards the concave-convex lens of image side and a tool, there are two the lens groups of the biconvex lens on the convex surface of different curvature composition)；Second
Lens 42 are concave surface towards object side, concave-convex lens of the convex surface towards image side.Wherein 41 position of the first lens group is fixed, the second lens
42 are connected with sliding rail A43, can slide along sliding rail A44, change the relative position with the first lens 41, preposition mould in the present embodiment
The focal range of block 4 is 30mm~50mm.
Trunk module 5 includes：Relay optic mould group and sliding rail B53；Relay optic mould group from the object side to image side, is followed successively by same
The third lens 51 and the 4th lens 52 of axis setting.Wherein the third lens 51 are biconcave lens；4th lens 52 are convex surface directions
The plano-convex lens of image side；51 position of the third lens is fixed；4th lens 52 are connected with sliding rail B53, can slide along sliding rail B53,
Change the relative position with the third lens 51.
Postposition module 6 includes postposition lens module and sliding rail C63；Wherein postposition lens module from the object side to image side, successively
For the 5th lens group 61 of coaxial arrangement and the 6th lens 62.Wherein the 5th lens group 61 includes more than one lens, entirety
Be equivalent to convex surface towards object side plano-convex lens (such as can for single convex surface towards the plano-convex lens of object side or by a convex surface court
To the plano-convex lens of object side and a tool, there are two the lens groups that the biconvex lens on the convex surface of different curvature forms)；6th lens
62 for concave surface towards object side, convex surface towards image side concave-convex lens.5th lens group, 61 position is fixed；6th lens 62 and sliding rail
C63 is connected, and can slide along sliding rail C63, changes the relative position with the 5th lens group 61.
Imaging area is provided with high speed camera 7, three-D displacement platform and the control unit for controlling three-D displacement platform；High speed phase
Machine 7 is arranged on three-D displacement platform, and for controlling high speed camera 7 in X, the displacement of Y, Z-direction (are wherein with the axial direction of each lens
X is to vertical direction is Z-direction, and the direction vertical with XZ plane is Y-direction).
The working principle of the microscopic imaging device is：Coaxial light source 1 is irradiated on transparent nozzle 3, and nozzle 3 uses light transmittance
Up to 92% organic glass, light loss are negligible.Due to the refraction and scattering of light, the bubble in nozzle 3 shelters from light,
It is revealed as secretly in the imaging of high speed camera 7, fluid oil part is rendered as bright on camera.
The light beam that light source 1 issues is converged after sample by the first lens group 41, and converging beam passes through the first lens group 41
Become divergent beams after focus, then by being converged after the second lens 42, beam divergence angle reduces, but is still diverging light
Then beam is emitted to trunk module 5.Preposition module 4 can reach different focal length and numerical aperture by different lens combinations, this
Lens group 4 reaches focal length 30-50mm in embodiment.
The diverging light that preposition module 4 is emitted is dissipated via the third lens 51 in trunk module 5, in divergent beams
After center portion divided beams is converged via the 4th lens 52, it is emitted in postposition module 6.
The light beam that trunk module 5 is emitted is converged via the 5th lens group 61 in postposition module 6, and converging beam is again through the 6th
Lens 62 are carried out slight diverging, extend focal plane position.5th lens group 61 and the 6th lens 62 etc. in postposition module 6
Effect focal length is 180mm, numerical aperture f 3.5.
When second lens 42 move back in preposition module 4, central light beam enters the third lens 51, and marginal portion cannot be incident
To the third lens, enlargement ratio increases, conversely, enlargement ratio reduces when Forward；51 outgoing beam of the third lens is incident on the 4th
Lens 52, when the Forward of the 4th lens 52, the central light beam for being incident on the 5th lens group 61 increases, and enlargement ratio reduces；Conversely,
Enlargement ratio increases when moving back；When focal plane position changes with enlargement ratio, pass through mobile 6th lens 62, thus it is possible to vary burnt
Focal plane is moved to camera chip position by plan-position.
In above-mentioned apparatus, all movable lenses all have unique freedom degree (axial movement).
In above-mentioned apparatus, selects high speed camera 7 to be imaged, obtain the high time resolution data of sample.High speed acquisition and short
Time for exposure causes the collected photon numbers of camera to reduce, and keeps image partially dark.The preposition module, trunk module, postposition mould
Block chooses high transmittance eyeglass, reduces light loss, increases luminous flux.The microscopic imaging device, it is available that there are more details
Experimental data and image, be applied to observing samples pattern, fuel oil development, cavitation formed etc..The amplification of the imaging device
Multiplying power is adjustable, and adjustable range is 5-20 times.
Although combining attached drawing describes embodiments of the present invention, it will be apparent to those skilled in the art that not
Under the premise of being detached from the principle of the invention, various modifications and improvements can be made, these also should be regarded as belonging to protection of the invention
Range.
Claims (7)
1. a kind of enlargement ratio continues adjustable microscopic imaging device, which is characterized in that including：Coaxial light source (1), imaging area with
And it is successively set on sample area, preposition module (4), trunk module (5) and postposition module between coaxial light source (1) and imaging area
(6)；
The coaxial light source (1) is for providing uniform illumination；
Sample area of the sample setting to be imaged in the front of the coaxial light source (1)；
The preposition module (4) includes：The first lens group (41) being sequentially coaxially arranged from the object side to image side and the second lens
(42)；First lens group (41) includes more than one lens, and entirety is equivalent to convex surface towards object side, concave surface towards image side
Meniscus；Second lens (42) be concave surface towards object side, convex surface towards image side concave-convex lens；First lens
Group (41) position is fixed, and the second lens (42) can be along its axial translation；
The trunk module (5) includes：The third lens (51) being sequentially coaxially arranged from the object side to image side and the 4th lens (52)；
Wherein the third lens (51) are biconcave lens；4th lens (52) are plano-convex lens of the convex surface towards image side；The third lens
(51) position is fixed, and the 4th lens (52) can be along its axial translation；
The postposition module (6) includes：The 5th lens group (61) being sequentially coaxially arranged from the object side to image side and the 6th lens
(62)；5th lens group (61) includes more than one lens, and entirety is equivalent to convex surface towards the plano-convex lens of object side, institute
State the 6th lens (62) be concave surface towards object side, convex surface towards image side concave-convex lens；5th lens group (61) position is solid
Fixed, the 6th lens (62) can be along its axial translation；
It is taken pictures by camera (7) to sample to be tested the imaging area.
2. enlargement ratio as described in claim 1 continues adjustable microscopic imaging device, which is characterized in that second lens
Group (42) is arranged on the sliding rail A (43), by along the mobile realization axial translation of the sliding rail A (43)；4th lens
(52) it is arranged on the sliding rail B (53), by along the mobile realization axial translation of the sliding rail B (53)；6th lens
(62) it is arranged on the sliding rail C (63), by along the mobile realization axial translation of the sliding rail C (63).
3. enlargement ratio as claimed in claim 1 or 2 continues adjustable microscopic imaging device, which is characterized in that the imaging
Area is additionally provided with for driving camera (7) to carry out three-dimensional mobile three-D displacement platform.
4. enlargement ratio as claimed in claim 1 or 2 continues adjustable microscopic imaging device, which is characterized in that described first
Lens group (41) be single convex surface towards object side, concave surface towards image side meniscus.
5. enlargement ratio as claimed in claim 1 or 2 continues adjustable microscopic imaging device, which is characterized in that described first
Lens group (41) includes two lens, is followed successively by from the object side to image side：Convex surface towards object side, concave surface towards image side concave-convex lens
There are two the biconvex lens on the convex surface of different curvature with tool.
6. enlargement ratio as claimed in claim 1 or 2 continues adjustable microscopic imaging device, which is characterized in that the described 5th
Lens group (61) is plano-convex lens of the single convex surface towards object side.
7. enlargement ratio as claimed in claim 1 or 2 continues adjustable microscopic imaging device, which is characterized in that the described 5th
Lens group (61) includes two lens, is followed successively by from the object side to image side：Convex surface towards object side plano-convex lens and tool there are two not
With the biconvex lens on the convex surface of curvature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810555920.8A CN108828759B (en) | 2018-06-01 | 2018-06-01 | Microscopic imaging device with continuously adjustable magnification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810555920.8A CN108828759B (en) | 2018-06-01 | 2018-06-01 | Microscopic imaging device with continuously adjustable magnification |
Publications (2)
| Publication Number | Publication Date |
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| CN108828759A true CN108828759A (en) | 2018-11-16 |
| CN108828759B CN108828759B (en) | 2020-08-25 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2744348B2 (en) * | 1990-11-20 | 1998-04-28 | キヤノン株式会社 | High zoom lens |
| US20100321774A1 (en) * | 2009-06-23 | 2010-12-23 | Raytheon Company | Method and Apparatus for Specimen Illumination in a Microscope |
| CN204422855U (en) * | 2015-01-29 | 2015-06-24 | 济南和普威视光电技术有限公司 | A kind of continuous vari-focus non-brake method focal length imaging lens |
| EP2957944A1 (en) * | 2014-06-20 | 2015-12-23 | Olympus Corporation | Variable power relay optical system and imaging apparatus |
| CN106842531A (en) * | 2015-12-04 | 2017-06-13 | 宁波华光精密仪器有限公司 | Can continuous zoom micro objective |
| CN206710069U (en) * | 2017-05-12 | 2017-12-05 | 南京邮电大学 | A kind of focal length of lens test device of no mechanical movement |
-
2018
- 2018-06-01 CN CN201810555920.8A patent/CN108828759B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2744348B2 (en) * | 1990-11-20 | 1998-04-28 | キヤノン株式会社 | High zoom lens |
| US20100321774A1 (en) * | 2009-06-23 | 2010-12-23 | Raytheon Company | Method and Apparatus for Specimen Illumination in a Microscope |
| EP2957944A1 (en) * | 2014-06-20 | 2015-12-23 | Olympus Corporation | Variable power relay optical system and imaging apparatus |
| CN204422855U (en) * | 2015-01-29 | 2015-06-24 | 济南和普威视光电技术有限公司 | A kind of continuous vari-focus non-brake method focal length imaging lens |
| CN106842531A (en) * | 2015-12-04 | 2017-06-13 | 宁波华光精密仪器有限公司 | Can continuous zoom micro objective |
| CN206710069U (en) * | 2017-05-12 | 2017-12-05 | 南京邮电大学 | A kind of focal length of lens test device of no mechanical movement |
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| CN108828759B (en) | 2020-08-25 |
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