CN201352151Y - Extinction device for distribution photometer - Google Patents
Extinction device for distribution photometer Download PDFInfo
- Publication number
- CN201352151Y CN201352151Y CNU2008201706106U CN200820170610U CN201352151Y CN 201352151 Y CN201352151 Y CN 201352151Y CN U2008201706106 U CNU2008201706106 U CN U2008201706106U CN 200820170610 U CN200820170610 U CN 200820170610U CN 201352151 Y CN201352151 Y CN 201352151Y
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- CN
- China
- Prior art keywords
- extinction
- wall
- awl
- distribution photometer
- detector
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- Expired - Lifetime
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The utility model provides an extinction device for a distribution photometer. An extinction wall with extinction tapers is arranged on an extension line from a detector to a rotary workbench clamping a detected light source, the openings of the extinction tapers face the rotary workbench, and the area of the extinction tapers covers the area enclosed by the detective solid angle of the detector on the extinction wall. Since the extinction wall is arranged, the environment reflection ratio can be greatly reduced, the interference of stray light caused by environment reflection can be conveniently and effectively reduced, and thereby the measurement precision of the distribution photometer system can be increased.
Description
[technical field]
The utility model relates to the measuring system of a kind of light and radiation, is mainly used in light source and light fixture luminous intensity distribution measurement on all directions such as indoor lamp, road lamp, Projecting Lamp of various sizes, and the luminous flux measurement of light source and light fixture.
[background technology]
In the measurement of distribution photometer, the control of parasitic light is crucial, and parasitic light is the general name of all improper transmission light in the optical system.Parasitic light in the distribution photometer mainly comes from measured light and reflects the light that enters detector again what the opposite direction of direction of measurement was sent through darkroom wall or other body surface, the optics in side walls and ground, the system and the reflection of mechanical component in addition, scatterings such as dust etc. also can bring parasitic light.
In the rotary table of detector and clamping measured light is separated distribution photometer (rotary distribution photometer, rotary mirror type distribution photometer etc. as light fixture), the measure of parasitic light of disappearing comprises: the surface of instrument own and breadboard wall, floor and ceiling blacking, diaphragm or other light-baffling device are set between measured light and detector, delustring tube etc. is set before detector, and the purpose of these eliminate stray light measures is to make detector only can " see " measured light or measured light imaging in catoptron.Yet, in the darkroom of distribution photometer, though environment is by blacking around wall, the ground etc., but these surrounding environment still have certain reflectivity, also can enter detector by reflecting to form more parasitic light, particularly the parasitic light that forms through primary event in the detectable range of detector can bring considerable influence to measurement.
At detector process cone, eliminate stray light devices such as diaphragm can observed scope in (being generally the solid angle zone that line surrounded at detector and maximum detection light source luminescent mouth edge), because the size of measured light has nothing in common with each other, measured light constantly rotates in measurement, the size in measured light luminous cross section on direction of measurement also constantly changes, and device such as diaphragm and cone is generally constant, therefore, but the reflection of the wall in the detector range of observation or other light-blocking matter with certain reflectivity tend to bring more parasitic light and be difficult to reduce and eliminate.Particularly compare with the light intensity of other direction hour in the light intensity of measuring beam, the measuring error of being brought by this reflect stray light is appreciable.
[utility model content]
In order to overcome the above-mentioned defective that exists in the existing rotary distribution photometer of light fixture, the utility model aims to provide a kind of distribution photometer extinction device, can reduce the parasitic light that Ambient brings convenient, effectively, improves measuring accuracy.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals, that is: the detector of distribution photometer is arranged on the pedestal that is separated with rotary table, be provided with cone and some diaphragms before the detector with light hole, cone and diaphragm have limited the detection solid angle of detector, it is characterized in that to the extended line of rotary table, the extinction wall being set at detector, the extinction wall is provided with the extinction awl, extinction awl opening surface is to rotary table, and extinction awl zone covers on the extinction wall plane surveys the zone that solid angle comprised.
Repeatedly reflection can take place in the non-measuring beam that shines on the extinction awl in the extinction awl, because the extinction awl is coated with black, original reflectivity is just lower, every reflection once in awl, reflectivity just accumulation multiplies each other once, these non-measuring beams are absorbed by the extinction awl through repeatedly reflecting nearly all, and the light intensity of final outgoing will be very low.Therefore, use the extinction awl to compare with simple blacking wall, reflectivity reduces greatly.But the extinction wall with extinction awl is set in the range of observation of detector, can significantly reduce by the reciprocal light of measuring beam and reflex to formed parasitic light in the measurement light path, effectively controlled system's parasitic light, improved measuring accuracy, and system operation is simple, the area that the extinction device covers on the extinction wall is big more, and the effect of the parasitic light that disappears is good more.
The utility model can be further qualified by following technical characterictic and be perfect:
Above-mentioned extinction awl has a plurality of planes, and adjacent two interplanars are angled to intersect, and many planes indentation is arranged.Vertically arranging in a plurality of planes of above-mentioned composition zigzag extinction awl, has the Plane intersects line of level; Perhaps form a plurality of flat transverse of zigzag extinction awl and arrange, have vertical Plane intersects line; Perhaps form a plurality of planes of zigzag extinction awl and tiltedly arrange, have oblique Plane intersects line.
Extinction awl on the perhaps above-mentioned extinction wall is the taper extinction chamber of arranging with array format, and taper extinction chamber is embedded in the extinction wall, and cone is passed the extinction wall.
Above-mentioned extinction wall is movably, can transfer closely or transfer the distance between far away and the measured light according to the size and the emission type of measured light, can move to position comparatively easily simultaneously when not using distribution photometer, and is easy and simple to handle.
Above-mentioned extinction wall also can be fixedly installed in the darkroom, and liftable curtain is set between extinction wall and measured light.When distribution photometer is worked, curtain is risen, make the extinction device work on the extinction wall; When distribution photometer is not worked, curtain is put down, with protection extinction wall and on the extinction device, prevent the bump of personnel or machine.
The surface of above-mentioned extinction wall and extinction awl is coated with opaque black.
According to the above, the beneficial effects of the utility model are: by to the extended line of rotary table the extinction wall with extinction awl being set at detector, reduce detector and survey the interior Ambient ratio of solid angle, the main parasitic light source of control distribution photometer, thereby eliminate the parasitic light that Ambient brings conveniently, effectively, improve measuring accuracy.
[description of drawings]
Accompanying drawing 2 is the vertical view of extinction awl among the embodiment 1 of the present utility model;
Accompanying drawing 3 is second embodiment synoptic diagram of extinction awl of the present utility model;
Accompanying drawing 4 is the 3rd an embodiment synoptic diagram of extinction awl of the present utility model;
Accompanying drawing 5 is the 4th an embodiment synoptic diagram of extinction wall of the present utility model;
Accompanying drawing 6 is the side schematic view of extinction awl among the 4th embodiment of the present utility model;
Embodiment
Embodiment below in conjunction with accompanying drawing is further described in detail the utility model:
Embodiment 1:
The utility model as shown in Figure 1 is applied in an embodiment synoptic diagram in the rotating lamp formula distribution photometer, and the rotary table 2 clamping measured lights 3 of distribution photometer also make measured light 3 around Z-axis and horizontal rotational shaft.Detector 4 is fixedly set on the pedestal 1 that is separated with rotary table 2, directly receives the light from measured light 3.Has cone before the detector 4, simultaneously at detector 4 to also being provided with some diaphragms 9 between the measured light 3, diaphragm 9 and cone 10 have limited the detection solid angle of detector 4, and by detectable range, detector generally can be observed the zone of the luminous actinal surface that is slightly larger than the maximum detection light source.On the reverse extending line of measuring light path extinction wall 6 is set, has extinction awl 7 on the extinction wall 6, extinction awl 7 zones cover detection solid angle formed zone on extinction wall plane of detector 4.
In the present embodiment, the vertical view of extinction awl 7 as shown in Figure 2, a plurality of planes indentation is laterally arranged, intersect at an angle on adjacent two planes, has vertical Plane intersects line.
In embodiment 1 as shown in Figure 1, extinction wall 6 is fixedly installed in the laboratory, be provided with drop scene 8 in the place ahead of extinction wall 6, when distribution photometer extinction device of the present utility model is worked, curtain rises, and extinction awl 7 work on the extinction wall 6 are not when the extinction device is worked, curtain is put down, avoid boring 7 accidental impact with extinction.
The embodiment 2 of extinction awl:
In the embodiment 2 of as shown in Figure 3 extinction awl, extinction awl 7 is vertically arranged by a plurality of planes indentation, and intersect at an angle on adjacent two planes, the Plane intersects line with level.
The embodiment 3 of extinction awl:
In the embodiment 3 of as shown in Figure 4 extinction awl, extinction awl 7 is tiltedly arranged by a plurality of planes indentation, and intersect at an angle on adjacent two planes, has oblique Plane intersects line.
Embodiment 4:
As shown in Figure 5 and Figure 6, the extinction wall 6 in the utility model is movably, shifts near or zoom out distance with rotary table 2 according to the size of measured light.Can adopt another kind of extinction to bore 7 schemes on extinction wall 6, the extinction awl 7 in this scheme is the taper extinction chambeies of arranging with array format, and taper extinction chamber is embedded in the extinction wall 6, and cone is passed extinction wall 6, and Fig. 6 is the side view of extinction wall.
Claims (7)
1. distribution photometer extinction device, the detector of distribution photometer (4) is arranged on the pedestal (1) that is separated with rotary table (2), preceding cone (10) and the some diaphragms (9) of being provided with of detector (4) with light hole, it is characterized in that to the extended line of rotary table (2), extinction wall (6) being set at detector (4), extinction wall (6) is provided with extinction awl (7), extinction awl (7) opening surface is to rotary table (2), and extinction is bored the zone that (7) regional detection solid angle that covers detector (4) on extinction wall (6) plane is comprised.
2. distribution photometer extinction device according to claim 1 is characterized in that described extinction awl (7) is the zigzag extinction awl (7) that many planes are formed.
3. distribution photometer extinction device according to claim 2, vertically arranging in a plurality of planes that it is characterized in that forming zigzag extinction awl (7), has the Plane intersects line of level; Perhaps form a plurality of flat transverse of zigzag extinction awl (7) and arrange, have vertical Plane intersects line; Perhaps form a plurality of planes of zigzag extinction awl (7) and tiltedly arrange, have oblique Plane intersects line.
4. distribution photometer extinction device according to claim 1 is characterized in that the extinction awl (7) on the described extinction wall (6) is the taper extinction chamber of arranging with array format, and taper extinction chamber is embedded in the extinction wall (6), and cone is passed extinction wall (6).
5. according to claim 1 or 2 or 4 described distribution photometer extinction devices, it is characterized in that described extinction wall (6) is a transportable extinction wall (6).
6. according to claim 1 or 2 or 4 described distribution photometer extinction devices, it is characterized in that described extinction wall (6) fixes, between extinction wall (6) and distribution photometer rotary table (2), liftable curtain (8) is set.
7. according to claim 1 or 2 or 4 described distribution photometer extinction devices, it is characterized in that the surface of described extinction wall (6) and extinction awl (7) is coated with black.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201706106U CN201352151Y (en) | 2008-12-22 | 2008-12-22 | Extinction device for distribution photometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201706106U CN201352151Y (en) | 2008-12-22 | 2008-12-22 | Extinction device for distribution photometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201352151Y true CN201352151Y (en) | 2009-11-25 |
Family
ID=41375540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201706106U Expired - Lifetime CN201352151Y (en) | 2008-12-22 | 2008-12-22 | Extinction device for distribution photometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201352151Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104508440A (en) * | 2012-08-20 | 2015-04-08 | 株式会社日立高新技术 | Spectrophotometer |
| CN110554496A (en) * | 2018-05-31 | 2019-12-10 | 上海微电子装备（集团）股份有限公司 | Light extinction device, optical element mounting base, optical element and modeling method |
-
2008
- 2008-12-22 CN CNU2008201706106U patent/CN201352151Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104508440A (en) * | 2012-08-20 | 2015-04-08 | 株式会社日立高新技术 | Spectrophotometer |
| CN110554496A (en) * | 2018-05-31 | 2019-12-10 | 上海微电子装备（集团）股份有限公司 | Light extinction device, optical element mounting base, optical element and modeling method |
| CN110554496B (en) * | 2018-05-31 | 2021-01-15 | 上海微电子装备（集团）股份有限公司 | Light extinction device, optical element mounting base, optical element and modeling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU EVERFINE OPTOELECTRONIC INFORMATION CO., Free format text: FORMER OWNER: SHUWEI SOFTWARE TECH. CO., LTD., HANGZHOU Effective date: 20101122 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20101122 Address after: 310053 Binjiang District, Zhejiang Province, Hangzhou Road, No. 669 Patentee after: Hangzhou Everfine Photo-E-Info Co., Ltd. Address before: 310053 Binjiang District, Zhejiang Province, Hangzhou Road, No. 669 Patentee before: Shuwei Software Tech. Co., Ltd., Hangzhou |
|
| CX01 | Expiry of patent term |
Granted publication date: 20091125 |
|
| CX01 | Expiry of patent term |