CN101399152B - Metal halogenate lamp of ultra-high colour development and ultra-high color temperature - Google Patents
Metal halogenate lamp of ultra-high colour development and ultra-high color temperature Download PDFInfo
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- CN101399152B CN101399152B CN 200710046435 CN200710046435A CN101399152B CN 101399152 B CN101399152 B CN 101399152B CN 200710046435 CN200710046435 CN 200710046435 CN 200710046435 A CN200710046435 A CN 200710046435A CN 101399152 B CN101399152 B CN 101399152B
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- color temperature
- halide lamp
- metal halide
- colour development
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Abstract
The invention relates to a metal halide lamp and discloses a metal halide lamp with superhigh color rendition and superhigh color temperature. The metal halide lamp comprises an electric arc tube, theinside of which is filled with a rare-earth halide combination. The rare-earth halide combination consists of the components with the weight percentages as follows: 3 percent to 7 percent of TlI, 20percent to 30 percent of DyI3, 25 percent to 30 percent of TmI3, 10 percent to 18 percetn of ThI4, and 25 percent to 30 percent of CsI according to the total weight of the rare-earth halide combination. The color rendition of the metal halide lamp is more than 90, the color temperature can be more than 6000K, and the metal halide lamp can meet the requirements of certain special occasions.
Description
Technical field
The present invention relates to metal halide lamp, be specifically related to a kind of metal halide lamp of ultra-high colour development and ultra-high color temperature.
Background technology
Color rendering is required during very high industry throws light on as printing, packing etc. in shopping mall, special exhibition center and some, the general light source that uses all requires high color rendering (Ra＞90), require correlated colour temperature simultaneously more than 6000K, such light source is more near natural daylight.
In the quartz metal halide lamp of domestic production at present, their color rendering is generally 60～80, and colour temperature is at 3000～5000K.This still can not satisfy the specific (special) requirements of more above-mentioned places to light source.
Summary of the invention
At deficiency of the prior art, the invention provides a kind of metal halide lamp of ultra-high colour development and ultra-high color temperature, to satisfy the requirement in some special places.
The present invention has adopted following technical proposals:
A kind of metal halide lamp of ultra-high colour development and ultra-high color temperature, comprise electric arc tube, fill out the rare earth halide composition in the electric arc tube, based on the total weight of rare earth halide composition, the rare earth halide composition is made up of following components in weight percentage: TlI 3-7%, DyI
320-30%, TmI
325-30%, ThI
410～18%, CsI 25～30%.
Among the present invention, TlI is a thallium iodide, DyI
3Be iodate dysprosium, TmI
3Be iodate thulium, ThI
4Be thorium iodide, CsI is a cesium iodide.
One of key of the present invention is to fill out in the metal halide lamp electric arc tube improvement of thing, by the component and the filling ratio of adjustment electric arc tube middle rare earth halide compositions, thereby makes colour temperature and color rendering obtain improvement.Two of key of the present invention is that the rare earth halide composition has adopted the CsI of higher percent, lower temperature region in electric arc tube obtains outstanding ionization performance thereby this improvement can utilize the low ionization potential of Cs, thereby has weakened because the electric arc that the excessive rare earth halide of filling causes shrinks and electric arc rocks problem.
Aforementioned five kinds of rare earth halides are mixed by aforementioned proportioning can obtain the rare earth halide composition, preferable, aforementioned species rare earth halide mixed use after making pill by aforementioned proportioning.
According to routine, generally also be filled with the inert gas or the nitrogen of mercury and certain pressure in the electric arc tube of metal halide lamp, charging into of inert gas or nitrogen can effectively avoid the electric arc tube maximum temperature to be no more than 900 ℃.
Preferable, the packed density of above-mentioned rare earth halide composition is 2-6mg/ml, preferred 2-4mg/ml, and the best is 2.4mg/ml.Mercury can adopt conventional packed density, and preferable, the packed density of mercury is 2.5～3mg/ml, and the best is 2.7mg/ml.
Among the present invention, packed density is based on electric arc tube cavity cumulative volume, the filler weight that every ml volume averaging is filled, and unit is mg/ml.
Electric arc tube can use conventional material such as quartz ampoule, form by blowing the blowing of ball technology, electric arc tube be shaped as the two terminal circle cylinder, the centre is nearly spheroid, preferable, the spheroid radian R of electric arc tube center spheroid and the ratio of spheroid length L are between 0.77-0.87, to guarantee that the electric arc tube cold junction temperature is more than 550 ℃
Metal-halide lamp color rendering of the present invention surpasses 90, and colour temperature can reach more than the 6000K.
Description of drawings
Fig. 1: metal halide lamp structural representation of the present invention
Fig. 2: the shape schematic diagram of electric arc tube in the metal halide lamp of the present invention
The lumen depreciation of the metal-halide lamp of Fig. 3: embodiment 3
Abscissa is: the burning-point time (h)
Ordinate is: lumen depreciation (%)
Embodiment
The preparation of embodiment 1-5 metal-halide lamp
Assembling biquartz metal-halide lamp as shown in Figure 1, the shape of its electric arc tube 1 as shown in Figure 2, electric arc tube be shaped as the two terminal circle cylinder, the centre is nearly spheroid, fill inert gas in the electric arc tube, mercury and rare earth halide composition, wherein the percentage by weight of each component and other related parameter choosing are as shown in the table in the rare earth halide composition, and each embodiment all prepares 5 samples:
| The embodiment numbering | Power (W) | TlI | DyI 3 | TmI 3 | ThI 4 | CsI | R/L | The packed density of rare earth halide composition (mg/ml) | The packed density of mercury (mg/ml) |
| 1 | 150 | 3 | 25 | 30 | 14 | 28 | 0.85 | 3.5 | 2.8 |
| 2 | 150 | 5 | 20 | 27 | 18 | 30 | 0.77 | 2.0 | 3.0 |
| 3 | 150 | 7 | 28 | 28 | 10 | 27 | 0.82 | 2.4 | 2.7 |
| 4 | 150 | 4 | 30 | 25 | 15 | 26 | 0.80 | 3.0 | 2.9 |
| 5 | 150 | 6 | 25 | 27 | 17 | 25 | 0.87 | 4.0 | 2.5 |
The performance test of embodiment 6 metal-halide lamps
The metal halide lamp photoelectric properties method of testing of pressing QB T 2515-2001 (People's Republic of China's light industry standard) record detects luminous flux, colour temperature and the color rendering index of embodiment 1-5 product, and each product color rendering is all above 90, and colour temperature reaches more than the 6000K.Now specifically exemplify the detected parameters of the metal-halide lamp of embodiment 3, the performance requirement that it is main, luminous flux, colour temperature and color rendering index are as shown in table 1, and lumen depreciation is as shown in Figure 3.
Table 2
| Sample number into spectrum | Luminous flux (lm) | Light efficiency (lm/W) | Colour temperature (K) | Color rendering |
| 1 | 10193 | 68 | 5863 | 91.1 |
| 2 | 10276 | 69 | 6023 | 90.4 |
| Sample number into spectrum | Luminous flux (lm) | Light efficiency (lm/W) | Colour temperature (K) | Color rendering |
| 3 | 10589 | 70.4 | 5908 | 91.1 |
| 4 | 10512 | 70.3 | 6130 | 91 |
| 5 | 10214 | 68 | 5987 | 91.4 |
| On average | 10357 | 69 | 5982 | 91 |
| Standard deviation | 181.5 | 104 | 0.4 |
Among this embodiment, product of the present invention as can be seen still has higher light efficiency under the high colour temperature of 6000K, and color rendering is up to 91.
Claims (9)
1. the metal halide lamp of a ultra-high colour development and ultra-high color temperature, comprise electric arc tube, it is characterized in that, fill out the rare earth halide composition in the electric arc tube, based on the total weight of rare earth halide composition, the rare earth halide composition is made up of following components in weight percentage: TlI3-7%, DyI
320-30%, TmI
325-30%, ThI
410～18%, CsI 25～30%, and the metal halide lamp color rendering of described ultra-high colour development and ultra-high color temperature surpasses 90, and colour temperature reaches more than the 6000K.
2. the metal halide lamp of ultra-high colour development and ultra-high color temperature according to claim 1 is characterized in that the packed density of above-mentioned rare earth halide composition is 2-6mg/ml.
3. as the metal halide lamp of ultra-high colour development and ultra-high color temperature as described in the claim 2, it is characterized in that the packed density of above-mentioned rare earth halide composition is 2-4mg/ml.
4. as the metal halide lamp of ultra-high colour development and ultra-high color temperature as described in the claim 3, it is characterized in that the packed density of above-mentioned rare earth halide composition is 2.4mg/ml.
5. the metal halide lamp of ultra-high colour development and ultra-high color temperature according to claim 1, it is characterized in that, described electric arc tube be shaped as the two terminal circle cylinder, the centre is nearly spheroid, the spheroid radian R of electric arc tube center spheroid and the ratio of spheroid length L are between 0.77-0.87.
6. the metal halide lamp of ultra-high colour development and ultra-high color temperature according to claim 1 is characterized in that, the enclosure material of described electric arc tube is quartzy.
7. as the metal halide lamp of ultra-high colour development and ultra-high color temperature as described in arbitrary claim among the claim 1-6, it is characterized in that, also be filled with mercury in the described electric arc tube, be filled with inert gas or nitrogen.
8. as the metal halide lamp of ultra-high colour development and ultra-high color temperature as described in the claim 7, it is characterized in that the packed density of described mercury is 2.5-3mg/ml.
9. as the metal halide lamp of ultra-high colour development and ultra-high color temperature as described in the claim 8, it is characterized in that the packed density of described mercury is 2.7mg/ml.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710046435 CN101399152B (en) | 2007-09-26 | 2007-09-26 | Metal halogenate lamp of ultra-high colour development and ultra-high color temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710046435 CN101399152B (en) | 2007-09-26 | 2007-09-26 | Metal halogenate lamp of ultra-high colour development and ultra-high color temperature |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101399152A CN101399152A (en) | 2009-04-01 |
| CN101399152B true CN101399152B (en) | 2010-05-26 |
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|---|---|---|---|
| CN 200710046435 Expired - Fee Related CN101399152B (en) | 2007-09-26 | 2007-09-26 | Metal halogenate lamp of ultra-high colour development and ultra-high color temperature |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4968916A (en) * | 1989-09-08 | 1990-11-06 | General Electric Company | Xenon-metal halide lamp particularly suited for automotive applications having an improved electrode structure |
| US5138227A (en) * | 1989-04-04 | 1992-08-11 | Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen M.B.H. | High-pressure discharge lamp, particularly double-ended high-power, high-wall loading discharge lamp, and method of making the same |
| CN1851846A (en) * | 2005-04-22 | 2006-10-25 | 上海亚明灯泡厂有限公司 | High color rendering property gold halogen lamp |
-
2007
- 2007-09-26 CN CN 200710046435 patent/CN101399152B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5138227A (en) * | 1989-04-04 | 1992-08-11 | Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen M.B.H. | High-pressure discharge lamp, particularly double-ended high-power, high-wall loading discharge lamp, and method of making the same |
| US4968916A (en) * | 1989-09-08 | 1990-11-06 | General Electric Company | Xenon-metal halide lamp particularly suited for automotive applications having an improved electrode structure |
| CN1851846A (en) * | 2005-04-22 | 2006-10-25 | 上海亚明灯泡厂有限公司 | High color rendering property gold halogen lamp |
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|---|---|
| CN101399152A (en) | 2009-04-01 |
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Granted publication date: 20100526 Termination date: 20180926 |