CN201170750Y - Distribution photometer - Google Patents
Distribution photometer Download PDFInfo
- Publication number
- CN201170750Y CN201170750Y CNU2008200832008U CN200820083200U CN201170750Y CN 201170750 Y CN201170750 Y CN 201170750Y CN U2008200832008 U CNU2008200832008 U CN U2008200832008U CN 200820083200 U CN200820083200 U CN 200820083200U CN 201170750 Y CN201170750 Y CN 201170750Y
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- China
- Prior art keywords
- main
- synchronous
- reflective mirror
- light fixture
- distribution photometer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a distribution photometer which comprises a main rotating table, a synchronous rotating table, a lamp rotating table and an optical detection cylinder. The main rotating table is provided with a reflector for reflecting the lights of a detected lamp. The reflector of the synchronous rotating table is arranged on the reflecting optical path of the reflector of the main rotating table. The lamp rotating table is provided with a lamp rotating shaft which drives the detected lamp to rotate. The optical detection cylinder is arranged on the optical path. The lights of the detected lamp in different directions are received by the optical detection cylinder. And the light intensity of the detected lamp is measured. With the distribution photometer of the utility model adopted, the influence of the directivity of the reflector on the detection result can be eliminated, and stray lights can be reduced. The distribution photometer has the advantages of wide detection range, small occupied area and high detection precision.
Description
Technical field
The utility model relates to a kind of distribution photometer, relates in particular to a kind of distribution photometer with main reflective mirror and synchronous reflective mirror.
Background technology
The distribution photometer of band reflective mirror commonly used has following several: a kind of is rotating mirror formula distribution photometer, probe is fixing, utilize reflective mirror rotation, tested light fixture to do the circumference translation in the space and transfer certainly to measure the light intensity of tested light fixture at different directions, because tested light fixture is moving in the test process, tested light fixture is easy to be subjected to environment temperature and movement air flow to influence in the residing environment difference of diverse location;
Second kind is the reflective mirror distribution photometer of motion, the fixing or accompany movement reflective mirror rotation of probe, utilize reflective mirror around tested light fixture rotate, tested light fixture rotation but the constant optical parameter of measuring tested light fixture at different directions in locus.Advantage is that tested light fixture locus is constant, is not subject to the influence of environment temperature and movement air flow; Shortcoming is that measuring beam changes around circular cone, measuring distance is fixing non-adjustable, need take than large space, in addition for large-scale tested light fixture, for the fixing situation of not following rotation of probe, because the sensitivity difference of detector on all directions of space will cause big error.
The third is the distribution photometer of motion reflective mirror and fixed counter-mirror combination, motion reflective mirror and light probe are fixed on the same swivel mount and rotate synchronously around tested light fixture, a fixed counter-mirror is set outside test board in addition is used for matching with motion reflective mirror and probe.Advantage is that tested light fixture locus is constant, is not subject to the influence of environment temperature and movement air flow; Shortcoming is that measuring beam changes around circular cone, because detector moves with the motion reflective mirror, is difficult to be provided with the diaphragm of a series of eliminate stray lights between detector and light source, otherwise the light beam dead angle is arranged; Beam axis incides fixed counter-mirror from all directions on a conical surface, reflex to again on the detector of motion since the reflectance of reflective mirror on all directions of space differ to, will introduce tangible luminosity error; The face shape error of fixed counter-mirror, periphery reflection veiling glare is responsive to the influence of photometric measurement precision.
Summary of the invention
The distribution photometer that provides a kind of measuring accuracy high is provided the purpose of this utility model.
The technical scheme that the prior art problem that solves the utility model is adopted is:
Distribution photometer of the present utility model comprises main universal stage, synchronous universal stage, light fixture universal stage and photodetection tube; Main universal stage comprises: main basal base and the main rotating shaft that is installed on the main basal base, and main rotating shaft and main mirror holder are fastening, and main reflective mirror is installed on main mirror holder; Universal stage comprises synchronously: sync pedestal and the synchronous turning axle that is installed on the sync pedestal, the dead in line of turning axle and main rotating shaft synchronously, on the turning axle synchronous mirror holder is installed synchronously, on the mirror holder synchronous reflective mirror is installed synchronously, reflective mirror is positioned on the reflected light path of main reflective mirror synchronously; The light fixture universal stage comprises: test lamp bracket and the light fixture turning axle that is installed on the test lamp bracket, and the axis of light fixture turning axle and the axis normal of main rotating shaft, tested light fixture is fixedlyed connected with the light fixture turning axle; The photodetection tube is installed on the light path.
During work, tested light fixture is fixed on the light fixture turning axle, main mirror holder drives main reflective mirror rotation when rotating, drive tested light fixture rotation by the light fixture turning axle, and the emergent light of the different directions of tested light fixture is received by the photodetection socket joint, measures the light intensity of tested light fixture.
The beneficial effects of the utility model are:
1, the synchronous reflective mirror of the synchronous rotation of employing and main reflective mirror can be eliminated the influence of the directivity of reflective mirror to test result;
2, be easy on optical channel, be provided with diaphragm, reduce parasitic light;
3, a plurality of photodetection tubes can be set at the diverse location on the reflected light path of reflective mirror and be used for measuring, test specification is wide;
4, distribution photometer floor area of the present utility model is little, the measuring accuracy height.
Description of drawings
Fig. 1 is first kind of structural representation of the present utility model;
Fig. 2 is the photodetection tube synoptic diagram in the utility model;
Fig. 3 is the photodetection tube synoptic diagram that baffle plate is set;
Fig. 4 is second kind of structural representation of the present utility model;
Fig. 5 is the third structural representation of the present utility model;
Fig. 6 is a kind of structural representation of the test lamp bracket in the utility model;
Fig. 7 is the 4th a kind of structural representation of the present utility model;
Fig. 8 is the 5th a kind of structural representation of the present utility model;
Fig. 9 is the diaphragm synoptic diagram in the utility model;
Figure 10 is the synoptic diagram of the another kind of diaphragm in the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
With reference to Fig. 1, distribution photometer comprises main universal stage, synchronous universal stage, light fixture universal stage and photodetection tube; Main universal stage comprises: main basal base 1-1 and the main rotating shaft 1-2 that is installed on the main basal base 1-1, and main rotating shaft 1-2 and main mirror holder 1-3 are fastening, and main reflective mirror 1-4 is installed on main mirror holder 1-3; Universal stage comprises synchronously: sync pedestal 2-1 and the synchronous turning axle 2-2 that is installed on the sync pedestal 2-1, the dead in line of turning axle 2-2 and main rotating shaft 1-2 synchronously, on the turning axle 2-2 synchronous mirror holder 2-3 is installed synchronously, on the mirror holder 2-3 synchronous reflective mirror 2-4 is installed synchronously, reflective mirror 2-4 is positioned on the reflected light path of main reflective mirror 1-4 synchronously; The light fixture universal stage comprises: test lamp bracket 3-1 and the light fixture turning axle 3-2 that is installed on the test lamp bracket 3-1, the axis of light fixture turning axle 3-2 and the axis normal of main rotating shaft 1-2, tested light fixture 5 is fixedlyed connected with light fixture turning axle 3-2, in the illustrated example, test lamp bracket 3-1 is between main universal stage and synchronous universal stage, and 3-3 is connected with support.In order further to improve measuring accuracy, the optical axis of measuring light is fixed, can be as shown in the figure, the reflected light path of synchronous reflective mirror 2-4 is positioned on the axis of synchronous turning axle 2-2.In order to improve the dynamic range of measurement, adopted two photodetection tubes in the legend, first photodetection tube is positioned on the reflected light path of main reflective mirror 1-4, is fixed on the synchronous mirror holder 2-3; Second photodetection tube is positioned on the reflected light path of synchronous reflective mirror 2-4.When first photodetection tube work, second photodetection tube do not worked.When second photodetection tube work, mirror holder 2-3 turns an angle synchronously, the reflected light path of the first photodetection tube and main reflective mirror 1-4 is staggered, and the reflected light of main reflective mirror 1-4 incides on the synchronous reflective mirror 2-4, and second photodetection socket joint received the reflected light of synchronous reflective mirror 2-4.
Main rotating shaft 1-2 is with turning axle 2-2 is respectively by main motor 1-5 and synchronous motor 2-5 driving rotation synchronously synchronously, and light fixture turning axle 3-2 is rotated by the light fixture motor-driven.
The photodetection tube comprises cylindrical shell 4-1 and the detector 4-2 of device in cylindrical shell 4-1 as shown in Figure 2.In order to reduce the parasitic light that incides on the photo-detector 4-2, can be at the baffle plate 4-3 of the front mounting center perforate of the detector 4-2 of photodetection tube.Baffle plate 4-3 can be one, also can be the several piece (see figure 3).
In the structure of distribution photometer shown in Figure 4, asessory shaft 6-1 is installed on main basal base 1-1, asessory shaft 6-1 is arranged in main rotating shaft 1-2, and the end of asessory shaft 6-1 stretches out main rotating shaft 1-2 and main mirror holder 1-3, and test lamp bracket 3-1 is fixed on the external part of asessory shaft 6-1.Asessory shaft 6-1 can be manually or by stand-by motor 6-3 driven in rotation.
In the structure of distribution photometer shown in Figure 5, the synchronous retrograde rotation axle 6-2 parallel with main rotating shaft 1-2 is installed on main mirror holder 1-3, test lamp bracket 3-1 is fixed on the synchronous retrograde rotation axle 6-2.
The test lamp bracket 3-1 that adopts in the utility model can be as shown in Figure 6, forms by translation stage 3-4 with light fixture frame 3-5 that translation stage 3-4 is slidingly connected, and light fixture turning axle 3-2 is installed on the light fixture frame 3-5.Like this, utilize moving of translation stage, can regulate the center of tested light fixture easily.
In the structure of distribution photometer shown in Figure 7, turnover reflective mirror 6-8 is set on the reflected light path of synchronous reflective mirror 2-4, the photodetection tube is positioned on the reflected light path of turnover reflective mirror 6-8.
The photodetection tube of distribution photometer can be installed on the input path or reflected light path of main reflective mirror 1-4, also can be installed on the reflected light path of synchronous reflective mirror 2-4, perhaps is installed on the reflected light path of turnover reflective mirror 6-8.
In order to reduce measuring error, eliminate the influence of parasitic light, diaphragm 6-6 can be set on light path, have light hole 6-7 on the diaphragm 6-6.Diaphragm 6-6 can be fixed on the synchronous mirror holder 2-3 as shown in Figure 8, and the light hole 6-7 on the diaphragm is positioned on the input path and emitting light path of synchronous reflective mirror 2-4 as shown in Figure 9; Diaphragm 6-6 also can be as shown in Figure 1, and on the light path between main universal stage and the synchronous universal stage, light hole 6-7 as shown in figure 10 in the form of a ring.The installation of above-mentioned two kinds of diaphragms also can be used simultaneously.
Claims (10)
1. a distribution photometer is characterized in that it comprises main universal stage, synchronous universal stage, light fixture universal stage and photodetection tube; Main universal stage comprises: main basal base (1-1) and be installed in main rotating shaft (1-2) on the main basal base (1-1), and main rotating shaft (1-2) is fastening with main mirror holder (1-3), and main reflective mirror (1-4) is installed on main mirror holder (1-3); Synchronously universal stage comprises: sync pedestal (2-1) and be installed in synchronous turning axle (2-2) on the sync pedestal (2-1), the dead in line of turning axle (2-2) and main rotating shaft (1-2) synchronously, on the turning axle (2-2) synchronous mirror holder (2-3) is installed synchronously, on the mirror holder (2-3) synchronous reflective mirror (2-4) is installed synchronously, reflective mirror (2-4) is positioned on the reflected light path of main reflective mirror (1-4) synchronously; The light fixture universal stage comprises: test lamp bracket (3-1) and be installed in the light fixture turning axle of testing on the lamp bracket (3-1) (3-2), the axis normal of the axis of light fixture turning axle (3-2) and main rotating shaft (1-2), tested light fixture (5) is fixedlyed connected with light fixture turning axle (3-2); The photodetection tube is installed on the light path.
2. a kind of distribution photometer according to claim 1, it is characterized in that the photodetection tube comprises cylindrical shell (4-1), the detector (4-2) of device in cylindrical shell (4-1) and the baffle plate (4-3) of center drilling, baffle plate (4-3) is positioned on the light path of detector (4-2) front.
3. a kind of distribution photometer according to claim 1 is characterized in that testing lamp bracket (3-1) between main universal stage and synchronous universal stage, and (3-3) is connected with support.
4. a kind of distribution photometer according to claim 1, it is characterized in that being equipped with on the main basal base (1-1) asessory shaft (6-1), asessory shaft (6-1) is arranged in main rotating shaft (1-2), one end of asessory shaft (6-1) stretches out main rotating shaft (1-2) and main mirror holder (1-3), and test lamp bracket (3-1) is fixed on the asessory shaft (6-1).
5. a kind of distribution photometer according to claim 1 is characterized in that testing lamp bracket (3-1) and forms by translation stage (3-4) with the light fixture frame (3-5) that translation stage is slidingly connected, and light fixture turning axle (3-2) is installed on the light fixture frame (3-5).
6. a kind of distribution photometer according to claim 1 is characterized in that being equipped with the synchronous retrograde rotation axle (6-2) parallel with main rotating shaft (1-2) on main mirror holder (1-3), test lamp bracket (3-1) is fixed on the synchronous retrograde rotation axle (6-2).
7. a kind of distribution photometer according to claim 1 is characterized in that turnover reflective mirror (6-8) is set on the reflected light path of synchronous reflective mirror (2-4), and the photodetection tube is installed on the reflected light path of turnover reflective mirror (6-8).
8. a kind of distribution photometer according to claim 1, the light path that it is characterized in that installing the photodetection tube is the input path or the reflected light path of main reflective mirror (1-4), or the reflected light path of reflective mirror (2-4) synchronously.
9. a kind of distribution photometer according to claim 1 is characterized in that being provided with diaphragm (6-6) on light path, have light hole (6-7) on the diaphragm (6-6).
10, a kind of distribution photometer according to claim 9 is characterized in that diaphragm (6-6) is fixed on the synchronous mirror holder (2-3), and the light hole on the diaphragm (6-7) is positioned on the input path and emitting light path of synchronous reflective mirror (2-4); Perhaps diaphragm (6-6) is on the light path between main universal stage and the synchronous universal stage, and light hole (6-7) in the form of a ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200832008U CN201170750Y (en) | 2008-02-04 | 2008-02-04 | Distribution photometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200832008U CN201170750Y (en) | 2008-02-04 | 2008-02-04 | Distribution photometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201170750Y true CN201170750Y (en) | 2008-12-24 |
Family
ID=40209803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200832008U Expired - Fee Related CN201170750Y (en) | 2008-02-04 | 2008-02-04 | Distribution photometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201170750Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009097813A1 (en) * | 2008-02-04 | 2009-08-13 | Tongsheng Mou | A distributed photometer |
| CN106225919A (en) * | 2016-07-29 | 2016-12-14 | 杭州市质量技术监督检测院 | Distributed luminosity measuring method based on lock-in amplifier and the system of measurement |
-
2008
- 2008-02-04 CN CNU2008200832008U patent/CN201170750Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009097813A1 (en) * | 2008-02-04 | 2009-08-13 | Tongsheng Mou | A distributed photometer |
| CN106225919A (en) * | 2016-07-29 | 2016-12-14 | 杭州市质量技术监督检测院 | Distributed luminosity measuring method based on lock-in amplifier and the system of measurement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081224 Termination date: 20160204 |