CN2775671Y - Device for detecting high strength discharge lamp electric arc parameter - Google Patents
Device for detecting high strength discharge lamp electric arc parameter Download PDFInfo
- Publication number
- CN2775671Y CN2775671Y CN 200520055495 CN200520055495U CN2775671Y CN 2775671 Y CN2775671 Y CN 2775671Y CN 200520055495 CN200520055495 CN 200520055495 CN 200520055495 U CN200520055495 U CN 200520055495U CN 2775671 Y CN2775671 Y CN 2775671Y
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- lens
- discharge lamp
- electric arc
- assembled
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Abstract
The utility model relates to a device for detecting the electric arc parameter of a high-strength discharge lamp which uses an assembled imaging lens with variable focuses. The utility model comprises a dark box. A discharge lamp is fixed to a three-dimensional or a five-dimensional frame foundation with fine adjustment on one end in the dark box. An assembled lens with variable focuses is installed in the dark box. A replaceable display screen and a photodetector are installed on the other side of the dark box in a movable way. A position which has a proper distance from an arc discharge pipe of the discharge lamp is provided with a light-proof baffle plate, the center of which is provided with a hole with a proper size in order to fix an assembled optical lens with variable focuses. The assembled optical lens with variable focuses comprises two convex lenses, between which a concave lens is installed. The assembled optical lens with variable focuses is also provided with a clear aperture and a fixing plate which is connected in the hole of the light-proof baffle plate. Because the utility model adopts an assembled lens with variable focuses to carry out distortion-free amplification to an arc image, and then data are detected, a simple and reliable effect is achieved.
Description
Technical field:
The utility model relates to a kind of device of testing arc parameters of high-intensity discharge lamps, particularly a kind of device that utilizes adjustable focus combined imaging camera lens to come testing arc parameters of high-intensity discharge lamps.
Background technology:
Current social all kinds of high-intensity discharge lamps develop rapidly, wherein quite a few for example Xenon gas metallic halogen lamp for automobile, projection TV all be short pole span compact high-intensity discharge lamp with ultrahigh pressure mercury lamp (UHP lamp) and stage with metal halide lamp etc., they all are mounted in the custom-designed light fixture to form certain light shape.The application of these aspects all requires the electric arc (actual light source) of employed lamp that certain geomery is arranged.Be to produce high-intensity discharge between two electrodes during discharge lamp work, because the formed arc temperature of high temperature and high pressure gas that is filled with tens to two the hundred major air pressure in the lamp is up to 5000～6000K, the rising air blast that electric arc forms makes electric arc arch up into rainbow shape.The thickness of electric arc and flexibility are all influential to the optical design and the projecting beam shape of light fixture.Therefore, practical application is to electric arc size and certain requirement is arranged from the axle degree, and some uses also quite strict, for example is used for the car headlamp Xenon gas metallic halogen lamp, arc center's line from axle degree and electric arc brightness the restriction of strictness is arranged all.
Accompanying drawing 1 has provided the arc shape synoptic diagram.For example for automobile-used 35W Xenon gas metallic halogen lamp, the camber degree r=0.5 ± 0.4mm of standard code, i.e. r=0.1～0.9mm, the electric arc dispersion (be width also be center brightness 20%, point to point apart from S=1.1 ± 0.40mm, that is 0.7～1.5mm).
Be dispersion S and the off-axis degree r that learns electric arc, must measure the electric arc Luminance Distribution (accompanying drawing 2) on the Z-axis of electric arc middle part, can find out r and s then, two parameters of this of Xenon gas metallic halogen lamp for automobile electric arc have strict requirement, are to measure.But arc temperature reaches 6000K, and diameter is only between 0.7～1.5mm, about in fact usually 1.2mm, and the Luminance Distribution of measuring so bright and so thin electric arc is a complexity and difficult work.
The utility model content:
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of device of simple and reliable test high-intensity discharge lamp electrical quantity is provided.
For achieving the above object, the utility model is achieved through the following technical solutions: it includes camera bellows, discharge lamp is fixed on the fine-tuning stand of an end in the camera bellows, the adjustable focus compound lens is installed in the camera bellows, has been movably installed with replaceable display screen and photo-detector at the opposite side of camera bellows.
Be provided with one every the light trap plate in the suitable distance of distance discharge lamp electric arc tube, should open the hole of a suitable size with the burnt combination optical camera lens of stationary adjustable every light trap plate center.
Described adjustable focus combination optical camera lens includes two convex lens, and concavees lens are installed between two convex lens, and it also is provided with clear aperature and is connected fixed head in the hole of tabula rasa.
Described fine setting stand is three-dimensional or five dimension adjustable articulators, during measurement, to guarantee that the arc image accurately image is on display screen and plane, detector place.
Described photo-detector plane should overlap with display screen, to guarantee measuring accuracy.
Principle of the present utility model is: according to the optical principle of lens imaging, adopt the combination focal optical lens that the electric arc image is carried out undistorted amplification earlier, manually or automatically test and write down each point data of electric arc image again.Promptly adopt the camera lens of the bigger adjustable focus combined imaging of a cover diameter and less light hole mirror, aberration is reduced to can ignore, so just arc image can be amplified 20～30 times or higher multiple, the corresponding reduction of electric arc brightness, on imaging plane, adopt the photo-detector that the transportable range of linearity is very wide again, just but side gets the brightness and the Luminance Distribution of electric arc each point, thereby determine arc shape and characteristic parameter r and s, simultaneously, the brightness of arc image each point also can be learnt by measuring this illumination.
Because the utility model has adopted the combination zoom lens that the electric arc image is carried out undistorted amplification, and then test data, reached simple, reliable effect.
Description of drawings:
Fig. 1 is the arc shape synoptic diagram;
Fig. 2 is the intensity map on arc center's position vertical profile;
Fig. 3 is the combined imaging camera lens synoptic diagram of the adjustable focus of the novel preferred embodiment employing of this usefulness;
Fig. 4 is the electric arc light intensity distribution tests device synoptic diagram that the utility model preferred embodiment is adopted.
Fig. 5 is that the utility model preferred embodiment discharge lamp places the structural representation on the fine setting stand;
Fig. 6 is presented at synoptic diagram on the display screen after preferred embodiment arc image of the present invention amplifies.
Embodiment:
One preferred embodiment is explained in further detail to the utility model below in conjunction with accompanying drawing:
See shown in accompanying drawing 3～accompanying drawing 6, at first Ying Zaiyi has a end in the camera bellows 10 of suitable length the fine-tuning stand 11 of First Five-Year Plan dimension (three-dimensional at least) to be installed in order to fixing discharge lamp, be provided with one every light trap plate 12 in the suitable distance of distance electric arc tube, should open the hole of a suitable size with the burnt combination optical camera lens 20 of stationary adjustable every light trap plate 12 centers, adjustable focus combination optical camera lens 20 includes two convex lens 21,22, one concavees lens 23 are installed between two convex lens 21,22, and it also is provided with clear aperature 25 and is connected fixed head 24 in tabula rasa 12 holes.The other end at camera bellows 10 is provided with a display screen 30, and this display screen 30 can be withdrawn and so that another screen displacement of photo-detector 40 to be installed, photo-detector 40 planes should overlap with display screen 30.
During operation, at first the electric arc tube that will be fixed on the tram is lighted, regulating the discharge lamp position after 15 minutes makes the electric arc blur-free imaging (must note keeping the geometrical axis one of optical axis and measurement mechanism to show and guarantee measuring accuracy) removing display screen 30 on display screen 30 to replace photo-detector and shield 40, the relative brightness that mobile detecting head can be measured electric arc distributes, and measure r, s value thus, certainly this detecting head also can change the receiver of class such as CCD into, and carries out automatic test analysis.
The embodiment of the above is preferred embodiment of the present utility model only, is not to limit practical range of the present utility model with this, so the equivalence that all shapes according to the utility model, structure and principle are done changes, all should be covered by in the protection domain of the present utility model.
Claims (5)
1, the device of testing arc parameters of high-intensity discharge lamps, include camera bellows (10), it is characterized in that: discharge lamp is fixed on the fine-tuning stand (11) of an end in the camera bellows (10), adjustable focus compound lens (20) is installed in the camera bellows (10), has been movably installed with replaceable display screen (30) and photo-detector (40) at the opposite side of camera bellows (10).
2, the device of testing arc parameters of high-intensity discharge lamps according to claim 1, it is characterized in that: be provided with one every light trap plate (12) in the suitable distance of distance discharge lamp electric arc tube, should open the hole of a suitable size with the burnt combination optical camera lens (20) of stationary adjustable every light trap plate (12) center.
3, the device of testing arc parameters of high-intensity discharge lamps according to claim 1 and 2, it is characterized in that: adjustable focus combination optical camera lens (20) includes two convex lens (21) and (22), one concavees lens (23) are installed between two convex lens (21) and (22), and it also is provided with clear aperature (25) and is connected fixed head (24) in tabula rasa (12) hole.
4, the device of testing arc parameters of high-intensity discharge lamps according to claim 1 and 2 is characterized in that: described fine setting stand (11) is three-dimensional or five dimension adjustable articulators.
5, the device of testing arc parameters of high-intensity discharge lamps according to claim 1 and 2 is characterized in that: described photo-detector (40) plane should overlap with display screen (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520055495 CN2775671Y (en) | 2005-03-11 | 2005-03-11 | Device for detecting high strength discharge lamp electric arc parameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520055495 CN2775671Y (en) | 2005-03-11 | 2005-03-11 | Device for detecting high strength discharge lamp electric arc parameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2775671Y true CN2775671Y (en) | 2006-04-26 |
Family
ID=36749986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520055495 Expired - Lifetime CN2775671Y (en) | 2005-03-11 | 2005-03-11 | Device for detecting high strength discharge lamp electric arc parameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2775671Y (en) |
-
2005
- 2005-03-11 CN CN 200520055495 patent/CN2775671Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150311 Granted publication date: 20060426 |