CN204116705U - A kind of micro objective - Google Patents
A kind of micro objective Download PDFInfo
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- CN204116705U CN204116705U CN201420640513.4U CN201420640513U CN204116705U CN 204116705 U CN204116705 U CN 204116705U CN 201420640513 U CN201420640513 U CN 201420640513U CN 204116705 U CN204116705 U CN 204116705U
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Abstract
The utility model discloses a kind of micro objective, belong to technical field of optical instrument.The utility model comprises nine spherical glass lens, is arranged in order from object space to image space: the first lens face is convex surface to object space, is concave surface towards image space; Second lens face is convex surface to object space, is concave surface towards image space; 3rd lens face is concave surface to object space, is concave surface towards image space; 4th lens face is concave surface to object space, is concave surface towards image space; Five, the 6th lens are balsaming lens group, and the 5th lens face is convex surface to object space, are convex surface towards image space; 6th lens face is concave surface to object space, is concave surface towards image space; Seven, the 8th lens are balsaming lens group, and the 7th lens face is convex surface to object space, are concave surface towards image space; 8th lens face is convex surface to object space, is convex surface towards image space; 9th lens face is concave surface to object space, is convex surface towards image space.The utility model can realize high resolution imaging, and visual field is large, resolution is high, volume is little, processing technology is ripe, cost is low.
Description
Technical field
The present invention relates to technical field of optical instrument, more particularly, relate to a kind of micro objective.
Background technology
Microscope is a kind of optical instrument be made up of one or several lens combination, has become the requisite high technology equipment of a lot of industry research.In some accurate miniature fields, in fields such as medical treatment and scientific researches, there is irreplaceable effect especially.
The visual field size of micro objective can affect range of observation, and visual field is larger, and observable scope is larger, just can better, more complete object observing.At present, existing all kinds of micro objective in world wide, but the visual field that technically can reach generally remains on about 20mm, and maximum visual field also only has 25mm, and is only applicable to visualization aspect.Along with the development of science and technology, increasing field has started to apply ccd image automatic acquisition technology, therefore, have higher requirement, and the visual field of conventional microscopy object lens cannot satisfy the demands to the visual field of micro objective.
Through retrieval, existing open about the scheme improving microscopic fields of view, as Chinese Patent Application No. 201310546824.4, the applying date is on November 7th, 2013, and invention and created name is: 6 times of SLWD object lens; This application case discloses a kind of 6 times of long reach object lens, and whole system is made up of two large constituent elements, and the first constituent element has positive focal power, and the second constituent element has negative focal power; First constituent element is made up of three lens combination; Second constituent element is made up of the 4th lens combination; The focal length of the first constituent element is fG1, and the focal length of the second constituent element is fG2, then meet the following conditions between them: 0.98<|fG2/fG1|<1.35; In first constituent element in each lens combination, the focal length of the first lens combination is fL1, the focal length of the second lens combination is fL2, the focal length of the 3rd lens combination is fL3, meet the following conditions: 119<fL2<135,0.5<fL1/fL3<0.7; The focal length of the second constituent element is fG2, meets the following conditions :-78<fG2<-70.It is little that this application case solves object lens observation visual field, and exit pupil diameter is little, and imaging clearly scope is difficult to the problem reaching 100%.
And for example Chinese Patent Application No. 201210418310.6, the applying date is on October 26th, 2012, and invention and created name is: for the microcobjective optical system of video imaging; And Chinese Patent Application No. 201210205053.8, the applying date is on June 20th, 2012, invention and created name is: the full-automatic urine tangible analyser patent of 30 times of object lens, above-mentioned application case is all by the composite design to lens, reach the object increasing and observe visual field, but the increase amplitude of visual field is less, be not still well positioned to meet the demand of prior art to micro objective visual field.
Summary of the invention
1. invent the technical matters that will solve
The object of the invention is to overcome above-mentioned deficiency, provide a kind of micro objective realizing Large visual angle, to meet the needs in current each field.
2. technical scheme
For achieving the above object, technical scheme provided by the invention is:
Micro objective of the present invention, comprise nine spherical glass lens that same optical axis is arranged, be respectively: the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens, the 8th lens and the 9th lens, nine described lens are arranged in order from object space to image space; Wherein, the 5th described lens become gummed lens combination the, seven lens to become gummed lens combination two with the 8th lens combination with the 6th lens combination; Above-mentioned nine lens have 16 minute surfaces, comprise: the first lens, the second lens, the 3rd lens, the 4th lens, balsaming lens group one, balsaming lens group two, the 9th lens face are to object space and the minute surface towards image space, and the cemented surface of the 5th lens and the 6th lens in balsaming lens group one, the cemented surface of the 7th lens and the 8th lens in balsaming lens group two; Be the first minute surface with the first lens face to the minute surface of object space, successively 16 minute surfaces sorted to image space from object space; Radius of curvature R, the minute surface distance D and effective clear aperature ψ of 16 minute surfaces are respectively:
First minute surface is R1=55.274 ~ 56.390mm, D1=9.269 ~ 9.366mm, ψ 1=16.893 ~ 17.450mm;
Second minute surface is R2=152.336 ~ 153.868mm, D2=2.185 ~ 2.232mm, ψ 2=16.012 ~ 16.310mm;
3rd minute surface is R3=28.478 ~ 29.346mm, D3=9.800 ~ 9.895mm, ψ 3=15.215 ~ 15.505mm;
4th minute surface is R4=346.780 ~ 350.260mm, D4=9.800 ~ 9.895mm, ψ 4=13.125 ~ 13.513mm;
5th minute surface is R5=-31.179 ~-30.561mm, D5=6.980 ~ 7.055mm, ψ 5=6.985 ~ 7.413mm;
6th minute surface is R6=12.539 ~ 12.921mm, D6=7.910 ~ 8.005mm, ψ 6=4.798 ~ 5.055mm;
7th minute surface is R7=-136.891 ~-135.529mm, D7=3.210 ~ 3.510mm, ψ 7=3.353 ~ 3.609mm;
8th minute surface is R8=13.746 ~ 14.308mm, D8=2.920 ~ 3.120mm, ψ 8=2.965 ~ 3.132mm;
9th minute surface is R9=28.074 ~ 28.930mm, D9=4.115 ~ 4.275mm, ψ 9=2.763 ~ 3.050mm;
Tenth minute surface is R10=-9.302 ~-8.938mm, D10=2.385 ~ 2.635mm, ψ 10=2.376 ~ 2.627mm;
11 minute surface is R11=70.993 ~ 72.427mm, D11=4.890 ~ 5.220mm, ψ 11=2.733 ~ 2.925mm;
12 minute surface is R12=317.554 ~ 320.746mm, D12=1.435 ~ 1.615mm, ψ 12=5.105 ~ 5.336mm;
13 minute surface is R13=33.187 ~ 33.857mm, D13=3.825 ~ 4.210mm, ψ 13=5.560 ~ 5.823mm;
14 minute surface is R14=-20.009 ~-19.417mm, D14=9.525 ~ 9.715mm, ψ 14=6.375 ~ 6.603mm;
15 minute surface is R15=-40.997 ~-40.185mm, D15=3.880 ~ 4.210mm, ψ 15=9.863 ~ 10.135mm;
16 minute surface is R16=-19.722 ~-19.140mm, D16=199.205 ~ 201.125mm, ψ 16=10.531 ~ 10.810mm.
Further, in 16 described minute surfaces, first minute surface is convex surface, second minute surface is concave surface, 3rd minute surface is convex surface, 4th minute surface is concave surface, 5th minute surface is concave surface, 6th minute surface is concave surface, 7th minute surface is concave surface, 8th minute surface is concave surface, 9th minute surface is convex surface, tenth minute surface is the 5th lens face to the convex surface of image space and the 6th lens face to the concave surface cemented surface of object space, 11 minute surface is concave surface, 12 minute surface is convex surface, 13 minute surface is the 7th lens face to the concave surface of image space and the 8th lens face to the convex surface cemented surface of object space, 14 minute surface is convex surface, 15 minute surface is concave surface, 16 minute surface is convex surface.
Further, the focal length of the first described lens is 111.27mm, the focal length of the second lens is 37.65mm, the focal length of the 3rd lens is-16.75mm, the focal length of the 4th lens is-24.713mm, the focal length of balsaming lens group one is-35.11mm, and the focal length of balsaming lens group two is 70.67mm, and the focal length of the 9th lens is 45.07mm.。
Further, refractive index/the Abbe number of the first described lens is 1.74693/50.95, refractive index/the Abbe number of the second lens is 1.80518/25.46, refractive index/Abbe number the 1.51680/64.23 of the 3rd lens, refractive index/the Abbe number of the 4th lens is 1.51680/64.23, refractive index/the Abbe number of the 5th lens is 1.43335/94.52, refractive index/the Abbe number of the 6th lens is 1.74693/50.95, refractive index/the Abbe number of the 7th lens is 1.80518/25.46, refractive index/the Abbe number of the 8th lens is 1.43335/94.52, refractive index/the Abbe number of the 9th lens is 1.74693/50.95.
Further, the maximum field of view of micro objective is 40mm.
3. beneficial effect
Adopt technical scheme provided by the invention, compared with existing known technology, there is following remarkable result:
Micro objective of the present invention, all adopts spheric glass, processes with characterization processes completely compatible, low cost of manufacture with existing optical mirror slip; And under the structural parameters condition of 16 minute surfaces provided in the present invention, the visual field of micro objective can reach 40mm, significantly increases the visual field of micro objective, can meet the high request of prior art to micro objective visual field.
Accompanying drawing explanation
Fig. 1 is the structural representation of micro objective of the present invention;
Fig. 2 under the structural parameters that provide in the embodiment of the present invention 1, the visual field parameter list of the micro objective that ZEMAX software simulation goes out;
Fig. 3, Fig. 4, Fig. 5 and Fig. 6 be respectively that ZEMAX software simulation goes out under Fig. 2 visual field imposes a condition, micro objective image quality design sketch; Wherein, Fig. 3 is light dispersion situation schematic diagram, and its horizontal ordinate is normalization aperture, and ordinate is the optical path difference of the reference chief ray in units of wave number; Fig. 4 is the encircled energy schematic diagram of monochromatic light based on diffraction, and its horizontal ordinate is the radius of diffraction pattern, and ordinate is the number percent that energy in current radius accounts for gross energy; Fig. 5 is polychromatic light optical transfer function schematic diagram, and its horizontal ordinate is spatial frequency, and ordinate is transfer function values; Fig. 6 is the contrast schematic diagram of ripple difference and theoretical value, and it is the optical path difference between actual corrugated and reference sphere.
Embodiment
For understanding content of the present invention further, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
With reference to Fig. 1, the micro objective of the present embodiment comprises nine spherical glass lens of same optical axis setting, is arranged in order from object space to image space:
First lens L1 is convex surface towards object space, is concave surface towards image space.
Second lens L2 is convex surface towards object space, is concave surface towards image space.
3rd lens L3 is concave surface towards object space, is concave surface towards image space.
4th lens L4 is concave surface towards object space, is concave surface towards image space.
5th lens L5 and the 6th lens L6 forms balsaming lens group one, and wherein the 5th lens L5 is convex surface towards object space, is convex surface towards image space; 6th lens L6 is concave surface towards object space, is concave surface towards image space, and the 5th lens L5 is combined towards the convex surface of image space and the 6th lens L6 towards the concave glue of object space.
7th lens L7 and the 8th lens L8 forms balsaming lens group two, and wherein the 7th lens L7 is convex surface towards object space, is concave surface towards image space; 8th lens L8 is convex surface towards object space, is convex surface towards image space, the 7th lens L7 towards the concave surface of image space and the 8th lens L8 glued together towards the convex surface of object space.
9th lens L9 is concave surface towards object space, is convex surface towards image space.
Above-mentioned nine lens have 16 minute surfaces, the convex surface of the first lens L1 is the first minute surface, the concave surface of the first lens L1 is the second minute surface, the convex surface of the second lens L2 is the 3rd minute surface, the concave surface of the second lens L2 is the 4th minute surface, 3rd lens L3 is the 5th minute surface towards the concave surface of object space, 3rd lens L3 is the 6th minute surface towards the concave surface of image space, 4th lens L4 is the 7th minute surface towards the concave surface of object space, 4th lens L4 is the 8th minute surface towards the concave surface of image space, 5th lens L5 is the 9th minute surface towards the convex surface of object space, the cemented surface of the 5th lens L5 and the 6th lens L6 is the tenth minute surface, 6th lens L6 is the 11 minute surface towards the concave surface of image space, 7th lens L7 is the 12 minute surface towards the convex surface of object space, the cemented surface of the 7th lens L7 and the 8th lens L8 is the 13 minute surface, 8th lens L8 is the 14 minute surface towards the convex surface of image space, the concave surface of the 9th lens L9 is the 15 minute surface, the convex surface of the 9th lens L9 is the 16 minute surface, the radius of curvature R of 16 minute surfaces, minute surface distance D, refractive index/the Abbe number (nd/vd) of effective clear aperature ψ and nine lens is see table 1:
The structural parameters of nine lens in table 1 embodiment 1
In addition, the focal length of the first lens L1 described in the present embodiment is 111.27mm, the focal length of the second lens L2 is 37.65mm, the focal length of the 3rd lens L3 is-16.75mm, the focal length of the 4th lens L4 is-24.713mm, the focal length of balsaming lens group one is-35.11mm, and the focal length of balsaming lens group two is 70.67mm, and the focal length of the 9th lens L9 is 45.07mm.
Fig. 2 under the above-mentioned parameter that provides at the present embodiment, the visual field parameter list of the micro objective that ZEMAX software simulation goes out.Can be obtained by the parameter of Fig. 2, the visual field of the present embodiment micro objective is 40mm, and the visual field of micro objective significantly increases, and can meet the high request of prior art to micro objective visual field.
Fig. 3, Fig. 4, Fig. 5 and Fig. 6 be respectively that ZEMAX software simulation goes out under Fig. 2 visual field imposes a condition, micro objective image quality design sketch.The situation of light dispersion under Large visual angle that what Fig. 3 showed is, as seen from Figure 3, under different visual field, optical path difference relation under the pupil coordinate of its meridional component and sagitta of arc component, X, Y represent sagitta of arc component and meridional component respectively, and the maximum perpendicular ratio of image is ± 50.000 wavelength.Figure is seen from top to bottom with order, from left to right, first width image represents that visual field point is 0.00mm, optical path difference curve map under the pupil coordinate of its meridional component and sagitta of arc component, take abscissa axis as benchmark, each curve from the bottom to top represents the curve that wavelength is 0.644,0.546,0.480,0.436 respectively; Second width image represents that visual field point is 8.50mm, optical path difference curve map under the pupil coordinate of its meridional component and sagitta of arc component, and take abscissa axis as benchmark, each curve from the bottom to top represents the curve that wavelength is 0.644,0.546,0.480,0.436 respectively; 3rd width image represents that visual field point is 12.02mm, and optical path difference curve map under the pupil coordinate of its meridional component and sagitta of arc component take abscissa axis as benchmark, and each curve from the bottom to top represents the curve that wavelength is 0.644,0.546,0.480,0.436 respectively; 4th width image represents that visual field point is 14.72mm, and optical path difference curve map under the pupil coordinate of its meridional component and sagitta of arc component take abscissa axis as benchmark, and each curve from the bottom to top represents the curve that wavelength is 0.644,0.546,0.480,0.436 respectively; 5th width image represents that visual field point is 20.00mm, and optical path difference curve map under the pupil coordinate of its meridional component and sagitta of arc component take abscissa axis as benchmark, and each curve from the bottom to top represents the curve that wavelength is 0.644,0.546,0.480,0.436 respectively.Curve wherein in every secondary curve map is the closer to abscissa axis, and its optical path difference is better, and the dispersion that can be embodied whole visual field by image is better.
What Fig. 4 showed is under Large visual angle, the encircled energy based on diffraction that monochromatic light embodies.In Fig. 4, each curve is crossing with datum line from the bottom to top, when every bar curve represents that visual field point is 20.00mm, 14.72mm, 12.02mm, 8.50mm, 0.00mm respectively, relation between the energy percentage of visual field and spot radius, wherein one, the top curve is the relation of ideally energy percentage and spot radius, other curves therewith between ideal curve gap the smaller the better, Fig. 4 can embody the good encircled energy in whole visual field.
What Fig. 5 showed is polychromatic light optical transfer function under Large visual angle.In Fig. 5, T is meridional component, and S is sagitta of arc component, make a datum line, each curve is crossing with datum line from the bottom to top, its Article 1 curve represents that visual field point is the transport function of the meridional component of 14.72mm, Article 2 curve represents that visual field point is the transport function of the meridional component of 12.02mm, Article 3 curve represents that visual field point is the transport function of the meridional component of 20.00mm, Article 4 curve represents that visual field point is the transport function of the meridional component of 8.50mm, Article 5 curve represents that visual field point is the transport function of the sagitta of arc component of 20.00mm, Article 6 curve represents that visual field point is the transport function of the sagitta of arc component of 14.72mm, Article 7 curve represents that visual field point is the transport function of the sagitta of arc component of 12.02mm, Article 8 curve represents that visual field point is the transport function of the sagitta of arc component of 8.50mm, Article 9 curve represents that visual field point is the transport function of the meridional component of 0.00mm and the transport function of sagitta of arc component.Wherein Article 10 curve is transfer curve ideally, and other curves therewith ideal curve are better close to expression performance, and the contrast of whole visual field is very good as seen from Figure 5.What Fig. 6 showed is under Large visual angle, and ripple difference and theoretical value are close to perfect.
Embodiment 2
The micro objective of the present embodiment, structure is substantially with embodiment 1, and the radius of curvature R of the present embodiment 16 minute surfaces, the refractive index/Abbe number (nd/vd) of minute surface distance D, effectively clear aperature ψ and nine lens are see table 2:
The structural parameters of nine lens in table 2 embodiment 2
The visual field of the present embodiment micro objective can reach 40mm equally, can meet the high request of prior art to micro objective visual field.
Embodiment 3
The micro objective of the present embodiment, structure is substantially with embodiment 1, and the radius of curvature R of the present embodiment 16 minute surfaces, the refractive index/Abbe number (nd/vd) of minute surface distance D, effectively clear aperature ψ and nine lens are see table 3:
The structural parameters of nine lens in table 3 embodiment 3
The visual field of the present embodiment micro objective can reach 40mm equally, can meet the high request of prior art to micro objective visual field.
Micro objective described in embodiment 1 ~ 3, can realize the imaging of high resolution, and visual field is large, resolution is high; Whole employing spheric glass, process with characterization processes completely compatible with existing optical mirror slip, volume is little, processing technology is ripe, low cost of manufacture, easy to utilize.
Claims (5)
1. a micro objective, it is characterized in that: comprise nine spherical glass lens that same optical axis is arranged, be respectively: the first lens (L1), the second lens (L2), the 3rd lens (L3), the 4th lens (L4), the 5th lens (L5), the 6th lens (L6), the 7th lens (L7), the 8th lens (L8) and the 9th lens (L9), nine described lens are arranged in order from object space to image space; Wherein, the 5th described lens (L5) and the 6th lens (L6) form balsaming lens group the, seven lens (L7) and the 8th lens (L8) form balsaming lens group two; Above-mentioned nine lens have 16 minute surfaces, comprise: the first lens (L1), the second lens (L2), the 3rd lens (L3), the 4th lens (L4), balsaming lens group one, balsaming lens group two, the 9th lens (L9) are towards object space and the minute surface towards image space, and the cemented surface of the 5th lens (L5) and the 6th lens (L6) in balsaming lens group one, the cemented surface of the 7th lens (L7) and the 8th lens (L8) in balsaming lens group two; Be the first minute surface with the first lens (L1) towards the minute surface of object space, successively 16 minute surfaces sorted to image space from object space; Radius of curvature R, the minute surface distance D and effective clear aperature ψ of 16 minute surfaces are respectively:
First minute surface is R1=55.274 ~ 56.390mm, D1=9.269 ~ 9.366mm, ψ 1=16.893 ~ 17.450mm;
Second minute surface is R2=152.336 ~ 153.868mm, D2=2.185 ~ 2.232mm, ψ 2=16.012 ~ 16.310mm;
3rd minute surface is R3=28.478 ~ 29.346mm, D3=9.800 ~ 9.895mm, ψ 3=15.215 ~ 15.505mm;
4th minute surface is R4=346.780 ~ 350.260mm, D4=9.800 ~ 9.895mm, ψ 4=13.125 ~ 13.513mm;
5th minute surface is R5=-31.179 ~-30.561mm, D5=6.980 ~ 7.055mm, ψ 5=6.985 ~ 7.413mm;
6th minute surface is R6=12.539 ~ 12.921mm, D6=7.910 ~ 8.005mm, ψ 6=4.798 ~ 5.055mm;
7th minute surface is R7=-136.891 ~-135.529mm, D7=3.210 ~ 3.510mm, ψ 7=3.353 ~ 3.609mm;
8th minute surface is R8=13.746 ~ 14.308mm, D8=2.920 ~ 3.120mm, ψ 8=2.965 ~ 3.132mm;
9th minute surface is R9=28.074 ~ 28.930mm, D9=4.115 ~ 4.275mm, ψ 9=2.763 ~ 3.050mm;
Tenth minute surface is R10=-9.302 ~-8.938mm, D10=2.385 ~ 2.635mm, ψ 10=2.376 ~ 2.627mm;
11 minute surface is R11=70.993 ~ 72.427mm, D11=4.890 ~ 5.220mm, ψ 11=2.733 ~ 2.925mm;
12 minute surface is R12=317.554 ~ 320.746mm, D12=1.435 ~ 1.615mm, ψ 12=5.105 ~ 5.336mm;
13 minute surface is R13=33.187 ~ 33.857mm, D13=3.825 ~ 4.210mm, ψ 13=5.560 ~ 5.823mm;
14 minute surface is R14=-20.009 ~-19.417mm, D14=9.525 ~ 9.715mm, ψ 14=6.375 ~ 6.603mm;
15 minute surface is R15=-40.997 ~-40.185mm, D15=3.880 ~ 4.210mm, ψ 15=9.863 ~ 10.135mm;
16 minute surface is R16=-19.722 ~-19.140mm, D16=199.205 ~ 201.125mm, ψ 16=10.531 ~ 10.810mm.
2. micro objective according to claim 1, it is characterized in that: in 16 described minute surfaces, first minute surface is convex surface, second minute surface is concave surface, 3rd minute surface is convex surface, 4th minute surface is concave surface, 5th minute surface is concave surface, 6th minute surface is concave surface, 7th minute surface is concave surface, 8th minute surface is concave surface, 9th minute surface is convex surface, tenth minute surface is the 5th lens (L5) towards the convex surface of image space and the 6th lens (L6) towards the concave surface cemented surface of object space, 11 minute surface is concave surface, 12 minute surface is convex surface, 13 minute surface is the 7th lens (L7) towards the concave surface of image space and the 8th lens (L8) towards the convex surface cemented surface of object space, 14 minute surface is convex surface, 15 minute surface is concave surface, 16 minute surface is convex surface.
3. micro objective according to claim 2, it is characterized in that: the focal length of described the first lens (L1) is 111.27mm, the focal length of the second lens (L2) is 37.65mm, the focal length of the 3rd lens (L3) is-16.75mm, the focal length of the 4th lens (L4) is-24.713mm, the focal length of balsaming lens group one is-35.11mm, and the focal length of balsaming lens group two is 70.67mm, and the focal length of the 9th lens (L9) is 45.07mm.
4. micro objective according to claim 3, it is characterized in that: the refractive index/Abbe number of described the first lens (L1) is 1.74693/50.95, refractive index/the Abbe number of the second lens (L2) is 1.80518/25.46, refractive index/Abbe number the 1.51680/64.23 of the 3rd lens (L3), refractive index/the Abbe number of the 4th lens (L4) is 1.51680/64.23, refractive index/the Abbe number of the 5th lens (L5) is 1.43335/94.52, refractive index/the Abbe number of the 6th lens (L6) is 1.74693/50.95, refractive index/the Abbe number of the 7th lens (L7) is 1.80518/25.46, refractive index/the Abbe number of the 8th lens (L8) is 1.43335/94.52, refractive index/the Abbe number of the 9th lens (L9) is 1.74693/50.95.
5. the micro objective according to any one of claim 2 ~ 4, is characterized in that: the maximum field of view of micro objective is 40mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297913A (en) * | 2014-10-29 | 2015-01-21 | 南京恒磊光学技术研究有限公司 | Microscope objective lens |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297913A (en) * | 2014-10-29 | 2015-01-21 | 南京恒磊光学技术研究有限公司 | Microscope objective lens |
| CN104297913B (en) * | 2014-10-29 | 2016-08-24 | 南京恒磊光学技术研究有限公司 | A kind of microscope objective |
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