CN203672334U - Three-dimensional imaging and three-dimensional scanning microscope - Google Patents

Abstract

The utility model discloses a three-dimensional imaging and three-dimensional scanning microscope which comprises an imaging microscope and a projection microscope. The imaging microscope is mainly composed of a first imaging unit and a second imaging unit. The first imaging unit comprises a first imaging element and a first imaging arm. The second imaging unit comprises a second imaging element and a second imaging arm. The projection microscope comprises a projection element and a projection arm. The first imaging arm comprises a first imaging eyepiece, a first zoom body and a first auxiliary lens. The second imaging arm comprises a second imaging eyepiece, a second zoom body and a second auxiliary lens. The projection element comprises a light source and a fringe image generator. A light emitted by the light source projects a fringe image to the surface of a measured object through the fringe image generator and the projection arm. Imaging is correspondingly carried out by the first imaging element and/or the second imaging element through the first imaging arm and/or the second imaging arm. The three-dimensional imaging and three-dimensional scanning microscope provided by the utility model can carry out three-dimensional imaging and three-dimensional scanning, and has the characteristics of wide application, convenient use and high measurement precision.

Description

A kind of three-dimensional imaging and 3-D scanning microscope

Technical field

The utility model relates to a kind of microcosmic three-dimensional scanner, especially a kind of three-dimensional imaging and 3-D scanning microscope.

Background technology

Stereomicroscope is the instrument that microcosmic visual inspection is conventional, and it provides the binocular stereo vision of micro-object by two eyepieces and double light path object lens., scientific analysis quantitative but common aspect stereomicroscope only can provide binocular stereo vision that three-dimensional appearance image can not be provided, when binocular stereo vision or stereomicroscope two-dimension optical image are identified for criminal investigation vestige, be subject to the impact of illumination, direction of observation and make its difficult judgment, affected by artificial experience.

In order to scan microcosmic three-dimensional stereo topography, people have installed ordinary cold light source and grating at body surface projected fringe image on the eyepiece of stereomicroscope.The defect of the method has: 1,, owing to adopting light source and grating projection double frequency striped, have to adopt the method that changes illumination path enlargement factor to project double frequency striped, and 2, the phase shift of grating fringe adopts mechanical linearity to move forward into row.These two defects make its complicated operation, poor practicability, and 3, excessive being difficult to of ordinary cold light volume source be connected with stereomicroscope, 4, ordinary cold light source heat-dissipating fan vibration seriously brings measuring error, while especially measuring small items, measuring accuracy is particularly important.5, the image of stationary body can only be obtained, in the time that measured object is the object of mobiles or transparent material, 3-D view can not be obtained.

In view of this special the utility model that proposes.

Utility model content

The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, provide a kind of measure accurate, easy to use, data acquisition is effective and can three-dimensional imaging can realize again the Novel microscope of 3-D scanning.

For solving the problems of the technologies described above, the utility model adopts the basic conception of technical scheme to be: a kind of three-dimensional imaging and 3-D scanning microscope, comprise imaging microscope and projection microscope, imaging microscope is mainly made up of the first image-generating unit and the second image-generating unit, the first image-generating unit comprises the first image-forming component and the first imaging arm, and the second image-generating unit comprises the second image-forming component and the second imaging arm; Projection microscope comprises projection element and projection arm.

Further, the first described imaging arm comprises the first imaging eyepiece, the first zoom body and the first attachment objective, and the second imaging arm comprises the second imaging eyepiece, the second zoom body and the second attachment objective.

Preferably, in the time that projecting light path and imaging optical path are parallel light path, the first described attachment objective and the second attachment objective are same object lens; If when projecting light path and imaging optical path are non-parallel light path, the first attachment objective and the second attachment objective are two object lens.

Further, described projection element comprises light source and stripe pattern generator, the light that light source sends passes through stripe pattern generator, projection arm projected fringe image successively to measured object surface, then through the first imaging arm and/or the second imaging arm correspondence by the first image-forming component and/or the second image-forming component imaging.

Further, projection arm comprises projection eyepiece, projection zoom body and projection objective.This projection arm adopts existing microscope.

Further, the first described imaging arm also comprises that light splitting is located at the first eyepiece of observing measured object three-dimensional appearance on this first imaging optical path, and the second described imaging arm also comprises that light splitting is located at the second eyepiece of observing measured object three-dimensional appearance on this second imaging optical path.

Further, the first described eyepiece and the first imaging eyepiece are coupled to the first zoom body by the first Amici prism, and the second described eyepiece and the second imaging eyepiece are coupled to the second zoom body by the second Amici prism.

Further, described projection element is projector, comprises shell, is located at LED light source and dmd chip in shell, and described the first image-forming component and the second image-forming component are video camera.

Further, be also provided with optical filter in shell, optical filter is arranged between LED light source and dmd chip.

Further, be also provided with the first beam condensing unit in shell, the first beam condensing unit is arranged between LED light source and optical filter.

Further, be also provided with the second beam condensing unit in shell, the second beam condensing unit is arranged between optical filter and dmd chip.

Further, the first video camera, the second video camera and dmd chip all connect computing machine.

The utility model provides a kind of three-dimensional imaging and 3-D scanning microscope, comprises imaging microscope and projection microscope, and when three-dimensional imaging, the first video camera of imaging microscope and the second video camera generate left and right image pair, and left and right image is to being fused into 3-D view; When 3-D scanning, one of projection microscope projector and the first video camera, the second video camera or the first video camera, second video camera form binocular structured light or monocular structural light measurement pair, generate high accuracy three-dimensional topographic data; Be specially, projector is by projection arm, projected fringe image on testee, and the stripe pattern on the first video camera of imaging microscope and/or the second camera acquisition testee generates the three-dimensional point cloud image of testee.

Adopt after technique scheme, the utility model compared with prior art has following beneficial effect.

The utility model is reasonable in design, volume is little, simple in structure, easy to operate, comfortable, measuring accuracy is high, can realize 3-D scanning can provide again the three-dimensional imaging of mobiles or transparent material object, can effectively improve measurement efficiency, reduce labour intensity.

Accompanying drawing explanation

Fig. 1 is three-dimensional imaging described in the utility model and the microscopical structural representation of 3-D scanning;

Fig. 2 is three-dimensional imaging described in the utility model and the microscopical principle schematic of 3-D scanning;

Fig. 3 is the structural representation of imaging microscope;

Fig. 4 is the structural representation of projection element;

Wherein: 1, imaging microscope, 2, projection microscope, 3, objective table, 31, measured object, 4, projection element, 41, light source, 42, stripe pattern generator, 43, shell, 44, optical filter, 45, the first beam condensing unit, 46, the second beam condensing unit, 47, radiator fan, 5, projection arm, 6, the first image-generating unit, 61, the first image-forming component, 7, the first imaging arm, 71, the first imaging eyepiece, 72, the first zoom body, 73, the first attachment objective, 74, the first Amici prism, 8, the second image-generating unit, 81, the second image-forming component, 9, the second imaging arm, 91, the second imaging eyepiece, 92, the second zoom body, 93, the second attachment objective, 94, the second Amici prism, 10, the first eyepiece, 11, the second eyepiece.

Embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.

As depicted in figs. 1 and 2, three-dimensional imaging described in the utility model and 3-D scanning microscope compriseimaging microscope 1 andprojection microscope 2,imaging microscope 1 is mainly by the first image-generatingunit 6 and 8 one-tenth of the second image-generating unit structures, the first image-generating unit 6 comprises that the first image-formingcomponent 61 and thefirst imaging arm 7, the second image-generating units 8 comprise the second image-formingcomponent 81 and thesecond imaging arm 9;Projection microscope 2 comprises projection element 4 and projection arm 5.

When three-dimensional imaging, the first image-formingcomponent 61 and the second image-formingcomponent 81 generate left and right image pair, and left and right image is to being fused into 3-D view; When three-dimensional scanning measurement, the light that projection element 4 sends passes through projection arm 5 projected fringe images to the surface of objective table 3 measuredobjects 31, again by the first image-formingcomponent 61 and the second image-formingcomponent 81 is common or the two one of take, by the three-dimensional appearance data of phase-shifting technique and coding techniques product surface.

As shown in Figure 3, on the first imaging optical path of thefirst imaging arm 7, light splitting is provided with light splitting on the second imaging optical path of observing thefirst eyepiece 10, thesecond imaging arms 9 of three-dimensional appearance on measuredobject 31 and is provided with thesecond eyepiece 11 of observing three-dimensional appearance on measuredobject 31.

Concrete is, the first describedimaging arm 7 comprises thefirst imaging eyepiece 71, thefirst zoom body 72 and the first attachment objective 73, the second describedimaging arm 9 comprises thesecond imaging eyepiece 91, thesecond zoom body 92 and the second attachment objective 93, preferably, in the time that projecting light path and imaging optical path are parallel light path, the first attachment objective 73 and the second attachment objective 93 are same object lens (consulting Fig. 3); If when projecting light path and imaging optical path are non-parallel light path, the first attachment objective and the second attachment objective are two object lens (not shown)s.Described thefirst eyepiece 10 and thefirst imaging eyepiece 71 are coupled to thefirst zoom body 72 by the first Amiciprism 74, and described thesecond eyepiece 11 and thesecond imaging eyepiece 91 are coupled to thesecond zoom body 92 by the second Amiciprism 94.

As shown in Figure 4, projection element 4 described in the utility model compriseslight source 41 andstripe pattern generator 42, and the light thatlight source 41 sends is projected to stripe pattern on measuredobject 31 throughstripe pattern generator 42, projection arm 5 successively; Stripe pattern correspondence on measuredobject 31 images on the first image-formingcomponent 61 and/or the second image-formingcomponent 81.

Described projection element 4 is projector, also compriseshell 43, can avoid the impact of parasitic light,light source 41 is LED light source,stripe pattern generator 42 is dmd chip, all be located in shell 43 (consulting Fig. 4), the first described image-formingcomponent 61 and the second image-formingcomponent 81 correspond to respectively thefirst video camera 61 and thesecond video camera 81.

Embodiment mono-

As shown in Figure 3, the SZ66 stereomicroscope that imaging microscope described in the utility model selects Chongqing Ao Te optical instrument company limited to produce, the left and right light path parallel of this stereomicroscope, attachment objective adopts non co axial imaging technique, and zoom ratio is 1:6.6.On this microscope, improve, comprise with thefirst eyepiece 10 of the observation measured object three-dimensional appearance of thefirst imaging eyepiece 71 light splitting and with thesecond eyepiece 11 of the observation measured object three-dimensional appearance of thesecond imaging eyepiece 91 light splitting, thefirst eyepiece 10 and thefirst imaging eyepiece 71 are coupled to thefirst zoom body 72, thesecond eyepieces 11 by the first Amiciprism 74 and thesecond imaging eyepiece 91 is coupled to thesecond zoom body 92 by the second Amici prism 94.Projection microscope is provided with for controllingLED light source 41 anddmd chip 42 control circuit modules, computing machine is connected with control circuit module by VGA interface, thereby controldmd chip 42 and project the sine streak image of phase shift and the black and white strip image of coding, the stripe pattern ondmd chip 42 is projeced on the surface of measured object 31.Thefirst video camera 61 is connected with the interface of thesecond imaging eyepiece 91 by thefirst imaging eyepiece 71 of stereomicroscope respectively with thesecond video camera 81, and thefirst video camera 61 is connected with computing machine with the second video camera 81.Project and on measuredobject 31, be subject to the sine streak image of object surface appearance modulation distortion and black and white strip image by thefirst imaging arm 7 and thesecond imaging arm 9 corresponding target surface that images in thefirst video camera 61 and thesecond video camera 81 respectively.Computing machine is again by the imagery exploitation phase shift algorithm of obtaining from thefirst video camera 61 and thesecond video camera 81 and Gray code algorithm generating fractional level PHASE DISTRIBUTION and integer level PHASE DISTRIBUTION and then generating three-dimensional point cloud chart picture respectively, thereby completes the digitizing of stereoscopic vision.Compared with prior art, adopt LED light source to make microscopical volume less, easy to use, also reduced in addition cooling fan and vibrated the error causing.

As shown in Figure 4, in order further to avoid the impact of parasitic light, be also provided withoptical filter 44 inshell 43,optical filter 44 is arranged betweenLED light source 41 and dmd chip 42.Inshell 43, being also provided with the firstbeam condensing unit 45, the firstbeam condensing units 45 is arranged betweenLED light source 41 and optical filter 44.Inshell 43, being also provided with the secondbeam condensing unit 46, the secondbeam condensing units 46 is arranged betweenoptical filter 44 and dmd chip 42.Above-mentioned two beam condensing units can converge light, reduce the loss of light in communication process and increase brightness; Inshell 43, be provided withradiator fan 47.

Embodiment bis-

The difference of the present embodiment and embodiment mono-is: projection element 4 has adopted the GP2LED projector of Benq that removes projection lens.The basic structure of this LED projector can be referring to the structure in Fig. 4 housing 43.LED light source 41 anddmd chip 42 are contained in GP2LED projector of Benq.All the other technical characterictics are identical with embodiment mono-.

Each technical characterictic in two embodiment all can alternatively be used, also can combination in any between different technologies feature.

In the utility model, thefirst eyepiece 10 and thesecond eyepiece 11 be for the binocular vision of stereoscopic vision, thefirst video camera 61 and thefirst eyepiece 10 light splitting, thesecond video camera 81 and thesecond eyepiece 11 light splitting.Its course of work is as follows: when visual examination, use thefirst eyepiece 10 and thesecond eyepiece 11 visualizations, need to measure time, utilizeLED light source 41 anddmd chip 42 to project the sine streak image of phase shift and multifrequency black and white strip image on measuredobject 31, thefirst video camera 61 and thesecond video camera 81 are captured in respectively sine streak image and the multifrequency black and white strip image of the phase shift of distortion on measuredobject 31, computing machine utilizes phase shift algorithm and Gray code algorithm generating fractional level PHASE DISTRIBUTION and integer level PHASE DISTRIBUTION and then generating three-dimensional point cloud chart picture respectively, thereby complete the digitizing of stereoscopic vision.In the time of three-dimensional imaging, thefirst video camera 61 and thesecond video camera 81 generate left and right image pair, by computing machine by left and right image to being fused into 3-D view.

Embodiment in above-described embodiment is only that preferred embodiment of the present utility model is described; not design of the present utility model and scope are limited; do not departing under the prerequisite of the utility model design philosophy; the various changes and modifications that in this area, professional and technical personnel makes the technical solution of the utility model, all belong to protection domain of the present utility model.

Claims (9)

1. a three-dimensional imaging and 3-D scanning microscope, it is characterized in that: comprise imaging microscope and projection microscope, imaging microscope is mainly made up of the first image-generating unit and the second image-generating unit, the first image-generating unit comprises the first image-forming component and the first imaging arm, and the second image-generating unit comprises the second image-forming component and the second imaging arm; Projection microscope comprises projection element and projection arm.

2. a kind of three-dimensional imaging according to claim 1 and 3-D scanning microscope, it is characterized in that: the first described imaging arm comprises the first imaging eyepiece, the first zoom body and the first attachment objective, and the second imaging arm comprises the second imaging eyepiece, the second zoom body and the second attachment objective.

3. a kind of three-dimensional imaging according to claim 1 and 3-D scanning microscope, it is characterized in that: described projection element comprises light source and stripe pattern generator, the light that light source sends passes through stripe pattern generator, projection arm projected fringe image successively to measured object surface, then through the first imaging arm and/or the second imaging arm correspondence by the first image-forming component and/or the second image-forming component imaging.

4. a kind of three-dimensional imaging according to claim 2 and 3-D scanning microscope, it is characterized in that: the first described imaging arm also comprises that light splitting is located at the first eyepiece of observing measured object three-dimensional appearance on this first imaging optical path, and the second described imaging arm also comprises that light splitting is located at the second eyepiece of observing measured object three-dimensional appearance on this second imaging optical path.

5. a kind of three-dimensional imaging according to claim 4 and 3-D scanning microscope, it is characterized in that: the first described eyepiece and the first imaging eyepiece are coupled to the first zoom body by the first Amici prism, the second described eyepiece and the second imaging eyepiece are coupled to the second zoom body by the second Amici prism.

6. according to claim 1-5 arbitrary described a kind of three-dimensional imaging and 3-D scanning microscope, it is characterized in that: described projection element is projector, comprise shell, be located at LED light source and dmd chip in shell, described the first image-forming component and the second image-forming component are video camera.

7. a kind of three-dimensional imaging according to claim 6 and 3-D scanning microscope, is characterized in that: in shell, be also provided with optical filter, optical filter is arranged between LED light source and dmd chip.

8. a kind of three-dimensional imaging according to claim 7 and 3-D scanning microscope, it is characterized in that: in shell, be also provided with the first beam condensing unit and the second beam condensing unit, the first beam condensing unit is arranged between LED light source and optical filter, and the second beam condensing unit is arranged between optical filter and dmd chip.

9. a kind of three-dimensional imaging according to claim 6 and 3-D scanning microscope, is characterized in that: the first video camera, the second video camera and dmd chip all connect computing machine.

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