The optical measuring system of integrating sphere and use integrating sphere
Technical field
The utility model relates to optical devices, is specifically related to a kind of integrating sphere, and the optical measuring system of required two kinds of standardization geometric conditions (0/D and D/0 condition) when using integrating sphere to realize measuring very easily.
Background technology
In present optical measurement field, for example measurement of transmittance, colourity in order to make measurement result have comparability preferably, has been stipulated the measurement geometric condition of four kinds of standards: 45/0 condition, 0/45 condition, D/0 condition, 0/D condition in the world.45/0 to be example, on behalf of incident light 45 degree, it incide sample surfaces, and detection direction is positioned at 0 degree direction of sample normal.0/45 opposite.The D/0 condition is represented to use from all directions diffused light (utilize integrating sphere produce) and is incided sample surfaces, and detection direction is positioned at 0 degree direction of sample normal.The 0/D condition represents that incident light impinges perpendicularly on the surface of sample, collects light and detection on all directions (adopting integrating sphere to collect).Tong Hang exact instrument can only be realized a kind of measurement geometric condition in above-mentioned four kinds of conditions in the world, extremely other top-grade instrument can be installed the switching that different measurement annexes is realized different geometric conditions by adopting, shortcoming is to need Shutdown Hosts, and complex operation involves great expense.
The utility model content
Need a kind of deficiency of annex in order to overcome existing a kind of measuring condition, the utility model proposes the optical measuring system of a kind of integrating sphere and use integrating sphere, D/0 geometric condition, 0/D geometric condition can be combined on the integrating sphere and realize, can carry out the conversion of standard geometric condition under without the prerequisite of Shutdown Hosts, project organization is simply effective, and is easy to operate.
For achieving the above object, the utility model adopts following technical scheme:
A kind of integrating sphere, comprise hollow integrating sphere spheroid with spherical inner wall, crossing on the plane of the centre of sphere that described spherical inner wall surrounds diameter of Spherical Volume, with the described centre of sphere is the center of circle, 90 degree have four through holes on described spherical inner wall at interval, three through holes have three external ball wall plate washers respectively therein, and described external ball wall plate washer all has dismounting and two states is installed, and a side that is positioned at the another one through hole on spherical inner wall is provided with the inwall plate washer.
Wherein, the aperture area shape of described four through holes is all consistent.
Wherein, the area of described external ball wall plate washer is greater than the aperture area of described through hole.
Wherein, described external ball wall barrier surface has the same material that uses identical technology spraying with the spherical inner wall surface.
Wherein, described inwall plate washer material is identical with spherical inner wall material and surface properties with surface properties.
Wherein, in the outside of described wherein three through holes of spherical inner wall spring pressuring plate is installed all and described external ball wall plate washer is installed or removed to fixed screw.
This use is novel also to provide a kind of optical measuring system of using integrating sphere, is used to realize the measurement under the 0/D geometric condition, and this system comprises incident light source, integrating sphere, detector and sample, wherein:
Described integrating sphere comprises the hollow integrating sphere spheroid with spherical inner wall, crossing on the plane of the centre of sphere that spherical inner wall surrounds diameter of Spherical Volume, with the described centre of sphere is the center of circle, 90 degree have four through hole a, b, c, d on described spherical inner wall at interval, three through hole b, c, d places have three external ball wall plate washers respectively therein, a side that is positioned at another through hole a on spherical inner wall is provided with the inwall plate washer, and through hole a is relative with through hole d;
Described detector is arranged on the through hole a place in the integrating sphere;
Described sample is arranged on the through hole b place of adjacent with through hole a and close described inwall plate washer;
The external ball wall plate washer at described through hole b place is in the dismounting state;
The incident light of described incident light source emission is relative with another through hole c adjacent to through hole a;
The external ball wall plate washer at described through hole c place is in the dismounting state;
The external ball wall plate washer at the through hole d place relative with described through hole a is in installment state.
The utility model also provides the optical measuring system of another kind of use integrating sphere, is used to realize the measurement under the D/0 geometric condition, and this system comprises incident light source, integrating sphere, detector and sample, wherein:
Described integrating sphere comprises the hollow integrating sphere spheroid with spherical inner wall, crossing on the plane of the centre of sphere that spherical inner wall surrounds diameter of Spherical Volume, with the described centre of sphere is the center of circle, 90 degree have four through hole a, b, c, d on described spherical inner wall at interval, three through hole b, c, d places have three external ball wall plate washers respectively therein, a side that is positioned at another through hole a on spherical inner wall is provided with the inwall plate washer, and through hole a is relative with through hole d;
Described detector is arranged on the through hole a place in the integrating sphere;
The external ball wall plate washer at the through hole b place of adjacent with through hole a and close described inwall plate washer is in installment state;
The incident light of described incident light source emission is relative with another through hole c adjacent to through hole a;
The external ball wall plate washer at described through hole c place is in the dismounting state;
Described sample is arranged on the through hole d place relative with described through hole a;
The external ball wall plate washer at described through hole d place is in the dismounting state.
Utilize integrating sphere that the utility model provides and the optical measuring system that is to use integrating sphere, have following beneficial effect:
1) can realize two kinds of geometric conditions of D/0,0/D on same integrating sphere, it is convenient to change mutually, simple in structure;
2) the each replacing measured geometric condition, owing to need not mobile integrating sphere spheroid, can avoid light path to aim at;
3) do not involve any electric elements in the replacing process, exempted high-acruracy survey needed long start preheating time yet.
Description of drawings
Fig. 1 is the structural drawing of the utility model integrating sphere;
Fig. 2 uses the optical measuring system structural drawing of integrating sphere for the utility model;
Fig. 3 is the another kind of optical measuring system structural drawing that uses integrating sphere of the utility model.
Among the figure: 1, spherical inner wall; 2, external ball wall plate washer; 3, inwall plate washer; 4, incident light source; 5, detector; 6, sample.
Embodiment
The optical measuring system of integrating sphere that the utility model proposes and use integrating sphere is described as follows in conjunction with the accompanying drawings and embodiments.
Be illustrated in figure 1 as the structural drawing of the utility model integrating sphere, this integrating sphere comprises the hollow integrating sphere spheroid with spherical inner wall 1, crossing on the plane of the centre of sphere that spherical inner wall 1 surrounds diameter of Spherical Volume, with the above-mentioned centre of sphere is the center of circle, 90 degree have four through hole a on spherical inner wall 1 at interval, b, c, d, three through hole b therein, c, the d place has three external ball wall plate washers 2 respectively, external ball wall plate washer 2 all has dismounting and two states is installed, a side that is positioned at another one through hole a on spherical inner wall 1 is provided with inwall plate washer 3, through hole a is relative with through hole d, through hole c is relative with through hole b, and through hole b is near inwall plate washer 3.
Preferably, the aperture area shape of four through hole a, b, c, d is all consistent, and the shape of through hole of the present invention is not limited to area and is arranged to consistent a kind of situation certainly, can make suitable modification as required; The area of external ball wall plate washer 2 is greater than the aperture area of through hole; External ball wall plate washer 2 surfaces have the same material that uses identical technology spraying with spherical inner wall 1 surface, have identical optical properties to guarantee them; The material of the inwall plate washer 3 of integrating sphere inside and surface properties thereof are with the material and the attribute thereof of integrating sphere inwall 1; In wherein three through hole b, the c of spherical inner wall 1, the outside of d spring pressuring plate and fixed screw are installed all, are convenient to install or remove said external ball wall plate washer 2, certainly, the mode of removing or installing external ball wall plate washer 2 is not limited to this kind form.
Use the optical measuring system of above-mentioned integrating sphere, both can realize the measurement under the 0/D geometric condition, also can realize the measurement of D/0 geometric condition.
Be illustrated in figure 2 as the optical measuring system structural drawing that the utility model uses integrating sphere, be used to realize the measurement under the 0/D geometric condition, this system comprises incident light source 4, integrating sphere, detector 5 and sample 6, and integrating sphere adopts the integrating sphere of structure shown in Figure 1, wherein:
Detector 5 is arranged on the through hole a place in the integrating sphere; Sample 6 is arranged on the through hole b place of adjacent with through hole a and close inwall plate washer 3; The external ball wall plate washer at through hole b place is in the dismounting state; Selection is gone into perforation adjacent to another through hole c of through hole a as light source, and the incident light of incident light source emission is relative with another through hole c adjacent to through hole a, thereby realizes 0 degree incident; The external ball wall plate washer 2 at through hole c place is in the dismounting state; The external ball wall plate washer at the through hole d place that described through hole a is relative is in installment state, avoids light through hole leakage from then on.Like this, light incides sample 6 surfaces from through hole c with incident angle 0 degree, and reflected light is positioned in through hole a place after more than 1 reflection of spherical inner wall homogenize detector 5 receives, thereby has realized the measurement of 0/D geometric condition.The purpose that inwall plate washer 3 is installed is in order to make the primary event light on specimen material surface, through hole b place be directly incident on detector 5.
Be illustrated in figure 3 as this novel another kind of optical measuring system structural drawing that uses integrating sphere, be used to realize the measurement under the D/0 geometric condition, this system comprises incident light source 4, integrating sphere, detector 5 and sample 6, and integrating sphere adopts the integrating sphere of structure shown in Figure 1, wherein:
Detector 5 is arranged on the through hole a place in the integrating sphere; The external ball wall plate washer 2 at the through hole b place of adjacent with through hole a and close inwall plate washer 3 is in installment state, avoids light perforate from then on to reveal; Selection is gone into perforation adjacent to another through hole c of through hole a as light source, and the incident light of incident light source 4 emissions is relative with another through hole c adjacent to through hole a; The external ball wall plate washer at through hole c place is in the dismounting state; Sample 6 is arranged on the through hole d place relative with through hole a; The external ball wall plate washer 2 at through hole d place is in the dismounting state.Like this, light incides the integrating sphere inwall from perforate c, and reflected light shines on the sample 6 after spherical inner wall more than 1 time reflection homogenize, and sample 6 reflected light are positioned in detector 5 receptions at perforate a place, thereby have realized the measurement of D/0 geometric condition.
As mentioned above, the conversion that is two kinds of geometric conditions is very convenient, perforate 4 places settle sample, perforate 5 places settle ball wall baffle plate to be 0/D, otherwise then be D/0, the each replacing measured geometric condition, owing to need not mobile integrating sphere spheroid, do not involve any electric elements yet, avoid light path to aim at and start preheating time.
When this annex does not use, can adopt 3 ball wall baffle plates that all the other 3 openings except that the detector opening are blocked up, prevent that external dust from falling into, and influences measuring accuracy.
Above embodiment only is used to illustrate the utility model; and be not to restriction of the present utility model; the those of ordinary skill in relevant technologies field; under the situation that does not break away from spirit and scope of the present utility model; can also make various variations and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.