CN203502663U - Lighting imaging common path microscopic imaging system - Google Patents
Lighting imaging common path microscopic imaging system Download PDFInfo
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- CN203502663U CN203502663U CN201320369648.7U CN201320369648U CN203502663U CN 203502663 U CN203502663 U CN 203502663U CN 201320369648 U CN201320369648 U CN 201320369648U CN 203502663 U CN203502663 U CN 203502663U
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Abstract
The utility model provides a lighting imaging common path microscopic imaging system, comprising a light source, a microscopic object lens assembly, a collecting lens and a light splitting sheet. The microscopic object lens assembly and the light splitting sheet are located on a same optical axis; the light source, the collecting lens and the light splitting sheet are located on a same optical axis; the light source and the microscopic object lens assembly are vertically arranged. The lighting imaging common path microscopic imaging system employs lighting and imaging common path design, and can avoid arranging supplementary lighting parts on the periphery of an object plane and thereby allow a microscope to work in a narrow space.
Description
Technical field
The utility model relates to optical imaging field, relates in particular to the micro optical system of a kind of illumination path and imaging optical path partial common.
Background technology
Microscope is a kind of by the optical system of small items amplification imaging closely.Traditional microscope is to observe image by human eye, therefore microscope is divided into object lens and two parts of eyepiece.Object lens effect is the real image that target is become to amplify; The effect of eyepiece is by the virtual image that becomes amplification of amplifying, and system emergent pupil is pulled to human eye entrance pupil position, so that eye-observation simultaneously.Microscope major parameter has limiting resolution and magnification.Limiting resolution determines by numerical aperture of objective, and magnification is determined by objective lens magnification and the magnification of eyepiece.Along with the appearance of face battle array microelectronic imaging device, MIcrosope image senser element has also replaced human eye by electron devices such as CCD, CMOS gradually.Micro imaging system, also without eyepiece, is directly placed in electronographic device object lens focal plane and can obtains image.
The illumination optical system image optics optics a great difference again in designing requirement of unifying.Imaging optical system requires the light cone that the point of object plane is sent to focus on a bit accurately, and requires to be positioned at conplane point at object plane and also can occupy the same plane of image space, and requires the distribution of image planes point and the geometry distribution of object plane point to have similarity.Mainly by aberration curve, transport function, the curvature of field and distortion curve etc., evaluate.Lamp optical system requires light source to be projeced into effectively, equably the region of appointment.Mainly by energy transfer efficiency, object illumination distribution curve, evaluate.
Utility model content
In order to solve existing technical matters in background technology, the utility model proposes a kind of illumination imaging light path micro imaging system altogether, adopt the mode of illumination and imaging Common-path method, can avoid floor light parts are set near object plane, thereby make microscope can work in small space.
Technical solution of the present utility model is: a kind of illumination imaging is light path micro imaging system altogether, it is characterized in that: described imaging system comprises light source, microcobjective assembly, illumination condenser and light splitting piece, described microcobjective assembly and light splitting piece are positioned on same optical axis, described light source and illumination condenser, light splitting piece are positioned on same optical axis, and described light source and microcobjective assembly are vertical setting.
Above-mentioned microcobjective assembly comprises imaging one mirror, imaging two mirrors, imaging three mirrors, imaging four mirrors that are successively set on same optical axis.
Above-mentioned imaging one mirror is the planoconvex lens being ground by crown glass, and imaging two mirrors are the biconvex mirrors that ground by crown glass, and imaging three mirrors are the biconcave mirrors that ground by flint glass, the biconvex lens that imaging four mirrors are ground by crown glass.
Above-mentioned light splitting piece is coated with semi-transparent semi-reflecting film near the one side of object space.
Above-mentioned semi-transparent semi-reflecting film be 50% thoroughly, 50% anti-semi-transparent semi-reflecting film.
The object space numerical aperture of above-mentioned microcobjective assembly is 0.16, and object space half height is 0.5mm, and the axle magnification that hangs down is 8.
The object space numerical aperture of above-mentioned light source is 0.15, and the axle magnification that hangs down is 1.
Microscope is for improving target image brightness, the illumination of General Requirements active light source, be divided into back lighting and frontlighting, back lighting requires the back of the body to have certain transparency according to thing, frontlighting, because working distance of microscope is shorter, reach desirable illumination and often adopt auxiliary optical path, and illuminating ray incident angle is generally all larger, and adopt exterior lighting because illuminace component is positioned at object space, for some narrow and small targets of space, be often difficult to realize.The mode that adopts illumination and imaging Common-path method, can avoid floor light parts are set near object plane, thereby make microscope can work in small space, and illumination light incident angle is less, has good illuminating effect.The Designing Transfer Function of imaging system has reached diffraction limit, has good picture contrast.The distortion curve of imaging system shows, visual field, limit is distortion only 0.05% relatively, and image is almost without being out of shape.The aberration curve of imaging system is milder, and the build-up tolerance of illustrative system is less, and assembly difficulty is less, easily reaches design objective.Object plane illumination curve shows, in visual field, object plane Illumination Distribution is even, has guaranteed the homogeneity of the Luminance Distribution of last imaging.
Accompanying drawing explanation
Fig. 1 is the utility model optical system diagram;
Fig. 2 is the utility model illuminator index path;
Fig. 3 is the utility model imaging system index path;
Fig. 4 is the utility model imaging system aberration curve figure;
Fig. 5 is the utility model imaging system transfer curve figure;
Fig. 6 is the utility model imaging system curvature of field and distortion curve figure;
Fig. 7 is the utility model object plane Illumination Distribution curve;
Embodiment
The utility model is a kind of illumination imaging light path micro imaging system altogether, comprise light source 1, imaging one mirror 2, imaging two mirrors 3, imaging three mirrors 4, imaging four mirrors 5, illumination condenser 6 and light splitting piece 7, imaging one mirror 2, imaging two mirrors 3, imaging three mirrors 4, imaging four mirrors 5 form microcobjective assembly, microcobjective assembly and light splitting piece 7 are positioned on same optical axis, light source 1 and illumination condenser 6, light splitting piece 7 are positioned on same optical axis, and light source 1 is vertical setting with microcobjective assembly.
Whole system forms (being light source 1 and microcobjective assembly) by illuminator and imaging system; Wherein, imaging optical system object space numerical aperture is 0.16, the high 0.5mm of object space half, and axle magnification 8 hangs down; Illuminator object space numerical aperture is 0.15, and the axle magnification that hangs down is 1, and lighting filament looks like to be formed in imaging system entrance pupil position.Illuminator and imaging system have shared part light path.
Illumination light converges gone out to inject the illumination condenser 6 of biconvex by light source 1 after, then inject light splitting piece 7, before light splitting piece 7, (near object space) (50% is saturating to plate semi-transparent semi-reflecting film, 50% is anti-), after semi-transparent semi-reflecting film, 50% luminous energy is along opposite direction incident imaging system, through imaging four mirrors 5, imaging three mirrors 4, imaging two mirrors 3 and imaging one mirror 2, focuses on before imaging one mirror 2, is finally projeced into object plane.So far, formed a complete lamp optical system.
The light that is projeced into object plane by illuminator after reflection, has carried object plane information and has entered imaging optical system.Imaging system entrance pupil is positioned at imaging one mirror 2 first surfaces, and imaging one mirror 2 is the planoconvex lens that ground by crown glass, and Main Function is to converge light; Then light enters imaging two mirrors 3, and imaging two mirrors 3 are the biconvex mirrors that ground by crown glass, and Main Function is to converge light.Imaging three mirrors 4 are the biconcave mirrors that ground by flint glass, and it is used for proofreading and correct the aberrations such as spherical aberration, coma, astigmatism and aberration that other positive lenss produce.Imaging four mirrors 5, by the biconvex lens grinding in crown glass, are determined system focal length in order to last, and the remaining aberration of balance.Last light is through light splitting piece 7, and half energy sees through semi-transparent semi-reflecting film to focal plane imaging.
Claims (7)
1. an illumination imaging is total to light path micro imaging system, it is characterized in that: described imaging system comprises light source, microcobjective assembly, illumination condenser and light splitting piece, described microcobjective assembly and light splitting piece are positioned on same optical axis, described light source and illumination condenser, light splitting piece are positioned on same optical axis, and described light source and microcobjective assembly are vertical setting.
2. illumination imaging according to claim 1 is total to light path micro imaging system, it is characterized in that: described microcobjective assembly comprises imaging one mirror, imaging two mirrors, imaging three mirrors, imaging four mirrors that are successively set on same optical axis.
3. illumination imaging according to claim 2 is total to light path micro imaging system, it is characterized in that: described imaging one mirror is the planoconvex lens being ground by crown glass, imaging two mirrors are the biconvex mirrors that ground by crown glass, imaging three mirrors are the biconcave mirrors that ground by flint glass, the biconvex lens that imaging four mirrors are ground by crown glass.
4. according to the illumination imaging described in claim 1 or 2 or 3, be total to light path micro imaging system, it is characterized in that: described light splitting piece is coated with semi-transparent semi-reflecting film near the one side of object space.
5. illumination imaging according to claim 4 light path micro imaging system altogether, is characterized in that: described semi-transparent semi-reflecting film be 50% thoroughly, 50% anti-semi-transparent semi-reflecting film.
6. illumination imaging according to claim 5 is total to light path micro imaging system, it is characterized in that: the object space numerical aperture of described microcobjective assembly is 0.16, and object space half height is 0.5mm, and the axle magnification that hangs down is 8.
7. illumination imaging according to claim 6 is total to light path micro imaging system, it is characterized in that: the object space numerical aperture of described light source is 0.15, and the axle magnification that hangs down is 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320369648.7U CN203502663U (en) | 2013-06-25 | 2013-06-25 | Lighting imaging common path microscopic imaging system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320369648.7U CN203502663U (en) | 2013-06-25 | 2013-06-25 | Lighting imaging common path microscopic imaging system |
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| CN203502663U true CN203502663U (en) | 2014-03-26 |
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| CN201320369648.7U Expired - Fee Related CN203502663U (en) | 2013-06-25 | 2013-06-25 | Lighting imaging common path microscopic imaging system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345052A (en) * | 2013-06-25 | 2013-10-09 | 中国科学院西安光学精密机械研究所 | Illumination imaging and microscopic imaging common-light-path system |
| CN105911683A (en) * | 2015-02-19 | 2016-08-31 | 奥林巴斯株式会社 | Illumination device for microscope and microscope |
-
2013
- 2013-06-25 CN CN201320369648.7U patent/CN203502663U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345052A (en) * | 2013-06-25 | 2013-10-09 | 中国科学院西安光学精密机械研究所 | Illumination imaging and microscopic imaging common-light-path system |
| CN105911683A (en) * | 2015-02-19 | 2016-08-31 | 奥林巴斯株式会社 | Illumination device for microscope and microscope |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20160625 |
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| CF01 | Termination of patent right due to non-payment of annual fee |