CN203455276U - Device for accurately measuring liquid refractive index and liquid phase diffusion coefficient based on asymmetric liquid core column lens - Google Patents
Device for accurately measuring liquid refractive index and liquid phase diffusion coefficient based on asymmetric liquid core column lens Download PDFInfo
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Abstract
The utility model provides a device for accurately measuring the liquid refractive index and the liquid phase diffusion coefficient based on an asymmetric liquid core column lens and relates to asymmetric column lenses and application of the asymmetric column lenses. The device is characterized in that a column lens consists of four column-shaped curved surfaces, wherein the curvature radiuses of the four column-shaped curved surfaces are Ri (i=1,2,3 and 4), the thicknesses of the front and rear walls of the four column-shaped curved surfaces are d1 and d3, and the thickness of each column-shaped cavity is d2; when the column-shaped cavities are filled with liquid, the distance s from the fourth curved surface to the focal line of the core column lens meets a determined relation. The device utilizing the column lens comprises an imaging system and an observing system, wherein the imaging system comprises a light source, an objective lens, an aperture diaphragm, a collimating lens, a slit and the column lens; the observing system comprises an electric ocular lens microscope and a computer terminal, and the electric ocular lens microscope consists of an electric ocular lens and the objective lens. The device is convenient to operate, is good in stability, has the measuring sensitivity higher than 2*10<-5> to the liquid refractive index and can be used for measuring the diffusion coefficients of two liquids of which the difference value of the refractive indexes is less than 0.001.
Description
Technical field
The utility model relates to the varifocal asymmetric optics post lens of monochromatic light aplanasia, and relates to the device of measuring liquid refractivity and Liquid Diffusion Coefficient with monochromatic light.
Background technology
Refractive index is the important optical parametric of transparent medium, can understand the character such as optical property, purity, concentration and dispersion of material by refractive index.Liquid Diffusion Coefficient is research mass transport process, calculates the important foundation data of mass transfer rate and Chemical Engineering Design and exploitation, has been widely used in the emerging industries such as biology, chemical industry, medical science and environmental protection.Lens are familiar with by the mankind very early and are utilized, and along with scientific and technical development, a greater variety of lens have been used in field widely.Post lens are widely used in the fields such as laser beam expanding, glasses optics, wide screen cinema scene with being combined with of spherical lens.But the post lens of current manufacturers produce are the larger spherical aberration of the total existence of post lens of larger caliber especially, and under harmless prerequisite, cannot change easily its principal focal distance for selected post lens.Before the utility model proposes, we are equipped with the different physical phenomenon in kapillary post-concentration focal position of different liquids according to directional light process, principle and method (general cloudling with glass capillary accurate measuring trace quantity liquid refractivity have been proposed, Bai Ran, Xing Mannan etc., Chinese utility model patent ZL200710066016.2[P]; Xing Mannan, Bai Ran, general cloudling, the new method of accurate measuring trace quantity liquid refractivity [J], " optical precision engineering ", 2008,16 (7), 1196-1202), by this principle and method, can measure the kapillary focal position that different liquids is housed, and calculate the refractive index of testing liquid in kapillary; Utilize the spatial resolving power of capillary imaging method to liquid refractivity, using kapillary as diffusion cell, can directly observe the diffusion phenomena (Li Qiang of dispersive medium in kapillary, Li Yu, Sun Licun etc., Chinese utility model patent ZL201110283339.3[P]), in conjunction with FICK second law, calculate Liquid Diffusion Coefficient.But utilize kapillary to contain and carry device as testing liquid, its sensitivity of measuring refractive index is limited, therefore and limited the measurement range of application of its Liquid Diffusion Coefficient, for example only have, when two kinds of liquid refractivity differences large (glycerine and water), just can observe clearly the diffusion phenomena of medium.For improving the sensitivity of refractometry, the liquid core zoom post lens that we have designed a kind of symmetry again substitute kapillary (Li Qiang, Sun Licun, Meng Weidong etc., accurately measure liquid refractivity [J] with liquid core zoom post lens, " Chinese laser ", 2012,39(10), 1008005-1 ~ 1008005-7), but the impact that observation process is caused of spherical aberration is not considered in the design of these post lens, and the measurement sensitivity of refractive index still has much room for improvement.
Summary of the invention
In order further to improve the sensitivity to measuring refractive indexes of liquid, widen Liquid Diffusion Coefficient measurement range and stability, the utility model proposes a kind of asymmetric liquid stem stem lens, and the device of a kind of accurate measurement liquid refractivity and Liquid Diffusion Coefficient is provided based on these asymmetric liquid stem stem lens.
Above-mentioned purpose realizes in the following manner:
(1) the varifocal asymmetric liquid stem stem lens of monochromatic light aplanasia
These post lens (6) consist of four cylindricality optical surfaces, and the radius-of-curvature of post lens (6) optical surface is respectively
r i (
i=1,2,3,4), the thickness of front and rear wall is respectively
d 1,
d 3, the thickness of cylinder chamber is
d 2, when cylinder chamber filling liquid, the 4th curved surface of post lens (6) is to the distance of its focal line
smeet:
In formula (1),
In formula,
n 0the glass refraction of post lens (6) optical surface,
nit is the refractive index that is filled with the fluid sample in post lens cylinder chamber.
The radius-of-curvature of described post lens (6) optical surface is respectively
r 1=60
mm,
r 2=25
mm,
r 3=-25
mm,
r 4=-33.8
mm, the thickness of front and rear wall is respectively
d 1=4
mm,
d 3=4
mm, the thickness of cylinder chamber is
d 2=12
mm, clear aperature is
a=32.50
mm, when being filled with the liquid refractivity of cylinder chamber
nbe 1.333 o'clock, the variations in refractive index 0.001 of imaging system, focal line change in location 1.165
mm.
Described post lens (6) are bonded by two K9 glass column-shape showerings, its lower port sealing.
(2) apply the device that asymmetric liquid stem stem lens are measured liquid refractivity and Liquid Diffusion Coefficient
Comprise imaging system and recording geometry, wherein,
It is light source that imaging system be take light emitting diode (1), after object lens (2) are assembled, is irradiated to the aperture diaphragm (3) as pointolite, and through collimation lens (4) collimation and slit (5) limit for width, normal incidence is contained year parts (6) to testing liquid;
Recording geometry forms electronic eyepiece (8,9) with lens (8) and COMS imageing sensor (9), and electronic eyepiece (8,9) forms electronic eyepiece microscope (10) with object lens (7), and electronic eyepiece microscope (10) is 0.001 with precision
mmelectron displacement platform (11) be moving sets, COMS imageing sensor (9) is connected with terminal (12);
And:
It is asymmetric liquid stem stem lens (6) that testing liquid is contained year parts (6).
The object lens of the imaging system of described device (2) are 10 * flat-field achromatic objective lens, and aperture diaphragm (3) diameter is 60 microns, collimation lens (4) for focal length be 400
mm, diameter 50.8
mmbiconvex lens, the width of slit (5) is adjustable.
The wide internal diameter that is slightly less than post lens 6 of seam of the slit of the imaging system of described device (5).
The object lens of the recording geometry of described device (7) are 20 * flat-field achromatic objective lens, effective numerical aperture
nA=0.4, lens (8) lateral magnification is 1/3 to dwindle gained image, and COMS imageing sensor (9) amplifies gained image with the enlargement ratio of 30 times, and highest resolution is 2048 * 1536.
Described device is less than the Liquid Diffusion Coefficient of two kinds of solution of 0.001 for measuring refractive index difference.
In the utility model principle, the sensitivity of liquid refractivity measured by asymmetric post lens and the spherical aberration of asymmetric post lens imaging system has determined the accuracy that refractive index and Liquid Diffusion Coefficient are measured jointly:
1, the sensitivity of measuring refractive indexes of liquid
The sine value of half angular width of the light beam that the directional light of the full post lens of a branch of photograph forms after the converging action of post lens can be approximately:
The effective numerical aperture of object lens (7) is:
The depth of field of recording geometry is:
The measurement sensitivity of this asymmetric post lens refractive index is:
Fig. 6 has provided the measurement sensitivity of liquid refractivity with the curve of testing liquid variations in refractive index, and when testing liquid refractive index is between 1.33 ~ 1.55, refractometry sensitivity is better than 2 * 10
-5.
2, the spherical aberration of asymmetric post lens imaging system
Spherical aberration is because the clear aperature of post lens is larger, apart from the light at optical axis diverse location place, through the different formed hot spots in post lens imaging system refraction post-concentration position, has reduced image quality.In order to measure liquid refractivity and water coefficient of diffusion, the utility model is by the design of each face curvature radius of coupled columns lens and thickness, spherical aberration when making to be filled with liquid in post lens and being water, lower than 20 microns, now can be ignored the impact of spherical aberration on image quality, has guaranteed the accuracy of measuring.Fig. 7 has provided ray tracing figure and the spherical aberration image with the post lens of the directional light process injected water of ZEMAX optical design software simulation.
Due to the technical characterictic that the utility model has, make it produce following good effect:
Adopt asymmetric post lens as measuring the core parts of liquid refractivity and using kapillary (Xing Mannan, Bai Ran, general cloudling, the new method of accurate measuring trace quantity liquid refractivity [J], < < optical precision engineering > >, 2008, 16 (7), 1196-1202) or symmetrical posts lens (Li Qiang, Sun Licun, Meng Weidong etc., with liquid core zoom post lens, accurately measure liquid refractivity [J], " Chinese laser ", 2012, 39(10), 1008005-1 ~ 1008005-7) as core parts, compare, the asymmetric post lens refractive index of the utility model design is measured sensitivity and is better than 2 * 10
-5the measurement sensitivity of refractive index is higher, and use this asymmetric post lens imaging system than use kapillary, as diffusion cell, more to stablize (Li Qiang as diffusion cell, Li Yu, Sun Licun etc., Chinese utility model patent ZL201110283339.3[P] " a kind of method and device of measuring Liquid Diffusion Coefficient ").Meanwhile, the accurate measurement of refractive index is also for the Liquid Diffusion Coefficient of Measurement accuracy infinite dilution solution is laid a good foundation.This performance is, when designed asymmetric post lens inject different liquids, the focal length difference that it forms by post lens forms liquid core zoom post lens, the liquid refractivity that is filled with pure water or is filled with in post lens is near 1.333 time, the spherical aberration of post lens imaging system is less than 20 microns, variations in refractive index 0.001, what cause post lens focal line position is changed to 1.165
mmthereby the utility model device can be measured refractive index difference and be less than 0.001 two kind of coefficient of diffusion between liquid.
With " a kind of method and device of measuring Liquid Diffusion Coefficient " (Chinese invention patent ZL201110283339.3[P]) relatively: the utility model only need utilize a width diffusion image to measure Liquid Diffusion Coefficient, reduced the measuring error of time, improved the accuracy of measurement of Liquid Diffusion Coefficient, shortened Measuring Time, the method for the measurement Liquid Diffusion Coefficient that the utility model proposes is measured 15 ~ 20 minutes consuming time.And foregoing invention patent need to obtain two of diffusion processes not in the same time (
t 1 , t 2 ) and two corresponding positions
(Z 1 , Z 2 )diffusion image, the coefficient of diffusion of calculating liquid.
By the utility model be applied to accurately measure liquid refractivity and Liquid Diffusion Coefficient have simple, easy to operate, be convenient to image viewing, its measuring accuracy and stability meet the advantage of general scientific experiment to the requirement of liquid refractivity and Liquid Diffusion Coefficient.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the asymmetric post lens of the utility model antetheca optical surface.
Fig. 2 is the schematic diagram of the asymmetric post lens of the utility model rear wall optical surface.
Fig. 3 is the asymmetric post lens of the utility model sectional views perpendicular to axial direction.
Fig. 4 is a kind of implement device when asymmetric post lens are applied to accurately measure liquid refractivity and Liquid Diffusion Coefficient.Light emitting diode 1, object lens 2, diaphragm 3, collimation lens 4, slit 5, asymmetric post lens, 6, imaging microcobjective 7, lens 8, COMS imageing sensor 9, one dimension displacement platform 11, computing machine 12; Imaging microcobjective 7, lens 8, COMS imageing sensor 9 form electronic eyepiece microscope 10; The 4th curved surface position of post lens
s 0, post lens focal line position
s i , the distance between the two
s=
s i -
s 0.
Fig. 5 is the diffusion image under t takes constantly.
Fig. 6 is that refractive index sensitivity is with the change curve of testing liquid refractive index.
Fig. 7 is ray tracing figure and the spherical aberration image thereof with the post lens of the directional light process injected water of ZEMAX optical design software simulation.
In embodiment, by reference to the accompanying drawings the utility model is further described below.But the utility model method and apparatus is not limited by the following examples.
Embodiment
(1) the varifocal asymmetric liquid stem stem lens of monochromatic light aplanasia
Embodiment 1:
These post lens 6 consist of four cylindricality optical surfaces, and the radius-of-curvature of its optical surface is respectively
r 1=60
mm,
r 2=25
mm,
r 3=-25
mm,
r 4=-33.8
mm, the thickness of front and rear wall is respectively
d 1=4
mm,
d 3=4
mm, the thickness of cylinder chamber is
d 2=12
mm, clear aperature
a=32.50
mm.When using K9 glass as post lens 6 materials, and the liquid refractivity being filled with in cylinder chamber
nbe 1.333 o'clock, the 4th curved surface of post lens 6 is to the distance of its focal line
smeet formula (1), the variations in refractive index 0.001 of imaging system, focal line change in location 1.165
mm.
Embodiment 2:
(2) apply the device that asymmetric liquid stem stem lens are measured liquid refractivity and Liquid Diffusion Coefficient
Embodiment 3:
Imaging system is λ=580 by a centre wavelength
nm, FWHM=32
nm light emitting diode 1, as light source, is irradiated to the aperture diaphragm 3 as pointolite after object lens 2 are assembled, and through collimation lens 4 collimation and slit 5 limits for width, normal incidence is to asymmetric liquid stem stem lens 6.When asymmetric post lens 6 are filled with after testing liquid or diffusion liquid, just formed and be arranged between slit 5 and object lens 7, and the asymmetric post lens optical system being formed by four coaxial cylinders.
Recording geometry forms electronic eyepieces 8,9 with lens 8 and COMS imageing sensor 9, and electronic eyepiece 8,9 forms electronic eyepiece microscopes 10 with object lens 7, and electronic eyepiece microscope 10 plays the picture acquisition function of asymmetric post lens focal line, and with precision be 0.001
mm electron displacement platform 11 be moving sets, COMS imageing sensor 9 is connected with terminal 12 by USB interface.
Embodiment 4:
The preferred object lens 2 of imaging system of embodiment 3 are 10 * flat-field achromatic objective lens, and aperture diaphragm 3 diameters are 60 microns, collimation lens 4 for focal length be 400
mm, diameter 50.8
mmbiconvex lens, the width of slit 5 is adjustable.
Conventionally, the wide internal diameter that is slightly less than post lens 6 of the seam of the slit 5 of imaging system.
Embodiment 5:
(3) use the position of the asymmetric post lens of matlab program language auxiliary calibration
The focal line position of asymmetric post lens
s 1distance to the 4th face position S0 of asymmetric post lens
s=S-S 0 , wherein,
s 1for focal line position,
s 0it is the position of the 4th curved surface of post lens.Regulate electron displacement platform 11, when terminal is observed blur-free imaging, record now the reading of electron displacement platform and be post lens focal line position and be
s 1, the position of the 4th curved surface of post lens
s 0:
S 0 =
S 1-
s
For above formula, when post lens cavity is filled with refractive index, be
nnormal fluid sample time,
scan calculate according to formula (1).
Said process is expressed as with algorithm routine:
R1=60.0, d1=4.0, R2=25.0, d2=12.0, R3=25.0, d3=4.0, R4=33.8, n0=1.5163, (Ri is the radius-of-curvature of asymmetric each face of post lens, and di is the distance between each face, and n0 is the refractive index of post lens material.)
N1=input (' normal fluid refractive index n 1='); (input normal fluid refractive index.）
S1=input (' electron displacement platform reading S1='); (during input normal fluid blur-free imaging, the reading of electron displacement platform.）
v1=n0*R1/(n0-1);
u2=v1-d1;
v2=n*R2*u2/(n0*R2+(n-n0)*u2);
u3=v2-d2;
v3=n0*R3*u3/(n*R3+(n-n0)*u3);
u4=v3-d3;
S1=R4*u4/ (n0*R4+ (n0-1) * u4); (substep is realized formula 1, calculates when injecting refractive index being the normal fluid of n1 in asymmetric post lens, and focal line is to the distance s1 of the 4th curved surface of post lens.）
S0=S1-s1。(complete the demarcation to asymmetric post lens position.)
(4) by matlab program language subsidiary testing liquid refractive index
In post lens 6 cylinder chamber, be filled with single testing liquid, testing liquid refractive index
nfor:
（2）
In formula (2),
。
Formula
u,
v,
l,
p,
qin the implication of each symbol identical with formula (1), and formula
vin
sfor the distance of focal line to the 4th curved surface of post lens 6, this distance
sfor the unique measured value for the treatment of in formula (2).
Measuring distance
smode be to regulate electron displacement platform 11, when terminal is observed blur-free imaging, record the now reading of electron displacement platform
s, establish S0 for the position of the 4th curved surface of post lens 6 according to (three) demarcate above, s=
s-
s 0.
The algorithm routine of said process is:
R1=60.0; D1=4.0; R2=25.0; D2=12.0; R3=25.0; D3=4.0; R4=33.8; N0=1.5163; S0=1.927, (Ri is the radius-of-curvature of asymmetric each face of post lens, and di is the distance between each face, and n0 is the refractive index of post lens material, and S0 is the position of demarcated the 4th curved surface of post lens 6.）
S=input (' electron displacement platform reading S='); (during input testing liquid blur-free imaging, the reading of electron displacement platform.）
S=S-S0; (calculate while being filled with testing liquid in post lens focal line to the distance of the 4th curved surface of post lens.）
u4=s*n0*R4/(R4-s*(n0-1));
v3=u4+d3;
u2=n0*R1/(n0-1)-d1;
p=R3*v3-d2*v3;
q=n0*d2*v3+n0*R3*d2;
m=n0*v3+n0*R3;
a=p*u2+R2*u2*v3;
b=n0*R2*p-n0*u2*p-m*R2*u2+u2*q;
c=n0*R2*q-n0*u2*q;
N=(b+ (b*b-4*a*c) ^0.5)/2/a(realizes formula 2 step by step, obtains testing liquid refractive index n.）
The method is better than 2 * 10-5 to the measurement sensitivity of liquid refractivity.
(5) by matlab program language subsidiary liquid Liquid Diffusion Coefficient
Application Fick law is derived, and the Liquid Diffusion Coefficient of two kinds of liquid meets formula (3):
In formula (3),
dliquid Diffusion Coefficient,
erfinv(
u) be error function
inverse function,
tfor diffusion time,
c 1with
c 2the initial concentration that is respectively diffusion beginning first two solution (Z=0) both sides at interface, is definite value,
zfor liquid lamella is to the interfacial distance of solution, Δ
zfor the correction to two kinds of solution interphase present positions.
Use above-mentioned formula, and follow these steps to operate and calculate, measure liquid Liquid Diffusion Coefficient:
(1) to post lens 6, inject solution 1, after standing 10 minutes, utilize numerical control syringe pump slowly to inject solution 2, the moment that solution 1 contacts with solution 2 is designated as 0 constantly.Electron displacement platform is transferred between the position making between solution 1 blur-free imaging and solution 2 blur-free imagings
s d .After two solution contact 15 ~ 20 minutes, in
tconstantly take diffusion image as shown in Figure 5.Measure diverse location on this image (
i=1,2 ..., 10) liquid lamella and the interfacial distance of solution
z i and the picture traverse of this liquid lamella
, obtain distance
z i and picture traverse
two metasets
, picture traverse
with the distance of focus to the 4th curved surface of post lens 6
s i meet:
In formula (5),
s d for the distance of viewing plane to the 4th curved surface of post lens,
for the width of incident directional light, by formula (5), calculate
s i after its substitution formula (2) is calculated and is existed
tthe refractive index of moment different liquids thin layer
;
(2) according to formula (4), calculate dispersion solutions concentration
and anti-error function value
space distribution, the latter form with
z i the set of relation;
(3) right
z i with
carry out linear fit, obtain equation:
wherein,
;
(4) calculate coefficient of diffusion
d.
Said process is expressed as with algorithm routine:
R1=60.0; D1=4.0; R2=25.0; D2=12.0; R3=25.0; D3=4.0; R4=33.8; N0=1.5163; S0=1.927, (Ri is the radius-of-curvature of asymmetric each face of post lens, and di is the distance between each face, and n0 is the refractive index of post lens material, and S0 is the position of the 4th curved surface of asymmetric post lens that calibrate.）
Sd=input (' electron displacement platform reading Sd='); (reading of the electron displacement platform behind appropriate location is chosen in input.）
W=input (width W of the incident ray '='); (input into the width of establishing directional light.）
Zi=[Z1,Z2,Z3,Z4,Z5,Z6,Z7,Z8,Z9,Z10];
Wi=[W1, W2, W3, W4, W5, W6, W7, W8, W9, W10]; (input by diffusion image, measured (
, Z
i) value.）
Si=(Sd-S0) .*W./(W-Wi); (according to formula (4), obtain the focal line position at different liquids thin layer place.）
u4=s*n0*R4/(R4-si*(n0-1));
v3=u4+d3;
u2=n0*R1/(n0-1)-d1;
p=R3*v3-d2*v3;
q=n0*d2*v3+n0*R3*d2;
m=n0*v3+n0*R3;
a=p*u2+R2*u2*v3;
b=n0*R2*p-n0*u2*p-m*R2*u2+u2*q;
c=n0*R2*q-n0*u2*q;
Ni=(b+ (b*b-4*a*c) ^0.5)/2/a; (according to formula (2), obtain the refractive index of different liquids thin layer.）
C=9.1939*ni-12.2503; (obtain the solution concentration of different liquids thin layer.）
Fw=erfinv ((0.5-c)/0.5); (obtain corresponding anti-error function.）
A=polyfit (fw, Zi, 1); (to Zi with
carry out linear fit, and give a by the value of the Monomial coefficient obtaining.）
T=input (' input take the time t=' of diffusion image); (input diffusion time.）
D=a(1)^2/4/t。(calculate
obtain Liquid Diffusion Coefficient.）
This measurement mechanism can be measured refractive index difference and be less than the coefficient of diffusion between two kinds of liquid of 0.001.
Claims (9)
1. asymmetric liquid stem stem lens, is characterized in that these post lens (6) consist of four cylindricality optical surfaces, and the radius-of-curvature of post lens (6) optical surface is respectively
r i (
i=1,2,3,4), the thickness of front and rear wall is respectively
d 1,
d 3, the thickness of cylinder chamber is
d 2, when cylinder chamber filling liquid, the 4th curved surface of post lens (6) is to the distance of its focal line
smeet:
In formula (1),
In formula,
n 0the glass refraction of post lens (6) optical surface,
nit is the refractive index that is filled with the fluid sample in post lens cylinder chamber.
2. asymmetric liquid stem stem lens according to claim 1, is characterized in that the radius-of-curvature of described post lens (6) optical surface is respectively
r 1=60
mm,
r 2=25
mm,
r 3=-25
mm,
r 4=-33.8
mm, the thickness of front and rear wall is respectively
d 1=4
mm,
d 3=4
mm, the thickness of cylinder chamber is
d 2=12
mm, clear aperature is
a=32.50
mm, when being filled with the liquid refractivity of cylinder chamber
nbe 1.333 o'clock, the variations in refractive index 0.001 of imaging system, focal line change in location 1.165
mm.
3. asymmetric liquid stem stem lens according to claim 1 and 2, is characterized in that described post lens (6) are bonded by two K9 glass column-shape showerings, its lower port sealing.
4. a kind of accurate measurement liquid refractivity of the asymmetric liquid stem stem lens of application as described in claim 1 ~ 3 and the device of Liquid Diffusion Coefficient, comprise imaging system and recording geometry, wherein,
It is light source that imaging system be take light emitting diode (1), after object lens (2) are assembled, is irradiated to the aperture diaphragm (3) as pointolite, and through collimation lens (4) collimation and slit (5) limit for width, normal incidence is contained year parts (6) to testing liquid;
Recording geometry forms electronic eyepiece (8,9) with lens (8) and COMS imageing sensor (9), and electronic eyepiece (8,9) forms electronic eyepiece microscope (10) with object lens (7), and electronic eyepiece microscope (10) is 0.001 with precision
mmelectron displacement platform (11) be moving sets, COMS imageing sensor (9) is connected with terminal (12);
It is characterized in that:
It is asymmetric liquid stem stem lens (6) that testing liquid is contained year parts (6).
5. device according to claim 4, is characterized in that the object lens (2) of described imaging system are 10 * flat-field achromatic objective lens, and aperture diaphragm (3) diameter is 60 microns, collimation lens (4) for focal length be 400
mm, diameter 50.8
mmbiconvex lens, the width of slit (5) is adjustable.
6. according to the device described in claim 4 or 5, it is characterized in that the wide internal diameter that is slightly less than post lens (6) of seam of the slit (5) of described imaging system.
7. according to the device described in claim 4 or 5, it is characterized in that the object lens (7) of described recording geometry are 20 * flat-field achromatic objective lens, effective numerical aperture
nA=0.4, lens (8) lateral magnification is 1/3 to dwindle gained image, and COMS imageing sensor (9) amplifies gained image with the enlargement ratio of 30 times, and highest resolution is 2048 * 1536.
8. according to the device described in claim 4 or 5, it is characterized in that the object lens (7) of described recording geometry are 20 * flat-field achromatic objective lens, effective numerical aperture
nA=0.4, lens (8) lateral magnification is 1/3 to dwindle gained image, and COMS imageing sensor (9) amplifies gained image with the enlargement ratio of 30 times, and highest resolution is 2048 * 1536.
9. device according to claim 7, is characterized in that the object lens (7) of described recording geometry are 20 * flat-field achromatic objective lens, effective numerical aperture
nA=0.4, lens (8) lateral magnification is 1/3 to dwindle gained image, and COMS imageing sensor (9) amplifies gained image with the enlargement ratio of 30 times, and highest resolution is 2048 * 1536.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472507A (en) * | 2013-09-11 | 2013-12-25 | 云南大学 | Method for accurately measuring liquid refractive index and liquid phase diffusion coefficient based on asymmetric liquid core column lens |
| CN104165863A (en) * | 2014-09-02 | 2014-11-26 | 云南大学 | Method for measuring liquid phase diffusion coefficient by utilizing instant refractive index spatial distribution of liquid core cylindrical lens |
| CN105181646A (en) * | 2015-05-13 | 2015-12-23 | 武汉理工大学 | Computer vision based transparent medium refractivity measurement method |
| WO2017080737A1 (en) * | 2015-11-09 | 2017-05-18 | Carl Zeiss Microscopy Gmbh | Light microscope and method for determining a wavelength-dependent refractive index of a sample medium |
| CN107247035A (en) * | 2016-12-20 | 2017-10-13 | 云南大学 | A kind of method that Liquid Diffusion Coefficient is quickly measured based on height of observation such as wick-containing post lens |
| CN108603950A (en) * | 2016-01-22 | 2018-09-28 | 卫文杰 | Achromatic optical system with liquid lens |
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2013
- 2013-09-18 CN CN201320578510.8U patent/CN203455276U/en not_active Withdrawn - After Issue
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| CN103472507A (en) * | 2013-09-11 | 2013-12-25 | 云南大学 | Method for accurately measuring liquid refractive index and liquid phase diffusion coefficient based on asymmetric liquid core column lens |
| CN104165863A (en) * | 2014-09-02 | 2014-11-26 | 云南大学 | Method for measuring liquid phase diffusion coefficient by utilizing instant refractive index spatial distribution of liquid core cylindrical lens |
| CN104165863B (en) * | 2014-09-02 | 2017-06-06 | 云南大学 | With the method for the instantaneous refractive index spatial distribution measuring Liquid Diffusion Coefficient of wick-containing post lens |
| CN105181646A (en) * | 2015-05-13 | 2015-12-23 | 武汉理工大学 | Computer vision based transparent medium refractivity measurement method |
| WO2017080737A1 (en) * | 2015-11-09 | 2017-05-18 | Carl Zeiss Microscopy Gmbh | Light microscope and method for determining a wavelength-dependent refractive index of a sample medium |
| CN108291870A (en) * | 2015-11-09 | 2018-07-17 | 卡尔蔡司显微镜有限责任公司 | The light microscope and method of wavelength-dependent index of refraction for determining sample medium |
| US10684221B2 (en) | 2015-11-09 | 2020-06-16 | Carl Zeiss Microscopy Gmbh | Light microscope and method for determining a wavelength-dependent refractive index of a sample medium |
| CN108603950A (en) * | 2016-01-22 | 2018-09-28 | 卫文杰 | Achromatic optical system with liquid lens |
| CN108603950B (en) * | 2016-01-22 | 2020-11-10 | 卫文杰 | Achromatic optical system having liquid lens |
| CN107247035A (en) * | 2016-12-20 | 2017-10-13 | 云南大学 | A kind of method that Liquid Diffusion Coefficient is quickly measured based on height of observation such as wick-containing post lens |
| CN107247035B (en) * | 2016-12-20 | 2019-07-05 | 云南大学 | A method of based on the height of observation rapid survey Liquid Diffusion Coefficient such as wick-containing cylindrical lens |
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