CN101567295A - High-pressure discharge lamp and lighting equipment - Google Patents
High-pressure discharge lamp and lighting equipment Download PDFInfo
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- CN101567295A CN101567295A CNA2009101372104A CN200910137210A CN101567295A CN 101567295 A CN101567295 A CN 101567295A CN A2009101372104 A CNA2009101372104 A CN A2009101372104A CN 200910137210 A CN200910137210 A CN 200910137210A CN 101567295 A CN101567295 A CN 101567295A
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Abstract
A high-pressure discharge lamp includes a luminous tube, a translucent protective tube disposed to cover the luminous tube, and a light-cutting layer formed on an outer or inner surface of the protective tube and includes, as a main component, metal oxide particles which absorb light having a wavelength no greater than 600 nm and allow light having a wavelength of greater than 600 nm to permeate, the light-cutting layer having optical properties that a cut ratio of light having a wavelength of 450 nm is confined to 20-50%.
Description
Technical field
The present invention relates to a kind of high-pressure discharge lamp and ligthing paraphernalia, particularly relate to the high-pressure discharge lamp of the light cut film that a kind of light that possesses provision wavelengths scope (wavelength range) ends and possess the ligthing paraphernalia of described discharge lamp.
Background technology
Before, be provided with ultraviolet cutoff film (ultraviolet cut film) high-pressure discharge lamp and utilize the ligthing paraphernalia of described lamp known.Described lamp and ligthing paraphernalia mainly are to be used for following illumination, that is, this illumination does not need ultraviolet ray and a part of blue light (blue light), and are used for preventing the impaired of shone thing etc., prevent the deterioration of paper, cloth etc. and are used for hanging down and lure worm etc.
For example, as the membrane material that is used for ultraviolet ray is ended, mainly be to use zinc oxide (ZnO) based material.Herein, the ZnO system that is used for ultraviolet ray is ended is by overlay film, and 50% cut-off wavelength is about 380nm or below the 380nm.In order to improve the effect that prevents ultraviolet caused deterioration, comparatively ideal is to more leaning on the light of long wavelength side to end.For this reason, a kind of ultraviolet cutoff film that has used the ZnO based material that for example is doped with Bi or In has been proposed.
Before, metal halide lamp (metal halide lamp) as high-color rendering (color rendering properties), low colour temperature excellence, well-known have the visible light reflection characteristic is attached at the metal halide lamp (for example, Japanese patent laid-open 10-208703 communique) with the colour temperature conversion film on the luminous tube through the dielectric film of adjusting (dielectric film).
And, before, particularly as having high-color rendering and can be easily colour temperature being carried out the metal halide lamp freely set, well-known have a metal halide lamp that has formed by overlay film, wherein said light output (optical output) (for example, Japanese patent laid-open 5-36380 communique) that is reduced the specific wavelength among the light that radiates out from luminous tube by overlay film with the regulation ratio.
In addition, before, well-known to the metal halide lamp that carried out improvement as the colour temperature of the light of optical characteristics (for example also have, No. 3312670 communique of Japan Patent) or the metal halide lamp of the high efficiency of look excellent and high colour developing type (for example, No. 3603475 communique of Japan Patent).
In addition, well-known have No. 3293499 communique of following Japan Patent and Japan Patent spy to open the 2003-16998 communique.
No. 3293499 communique of Japan Patent: in No. 3293499 communique of described Japan Patent, put down in writing following content: in the luminous tube that constitutes by light transparent ceramic (translucent ceramics) container, the metal halide that will comprise rare earth metal halide and sodium halide, the amount of counting rare earth metal halid 10%～100% with weight ratio according to sodium halide is added and is enclosed (DyI:55wt%, NaI:30wt%, TlI:15wt%), obtain high-pressure discharge lamp thus, luminous efficiency is 96lm/W in this high-pressure discharge lamp, colour temperature is 4100K (3500K～5000K), color rendering also presents average color rendering index (general color rendering index, Ra) be 95 the high characteristics of luminescence, and the difference of the voltage that goes out certainly when lighting a lamp with level of vertically lighting a lamp is dwindled.
The Japan Patent spy opens the 2003-16998 communique: open described Japan Patent spy and put down in writing following content in the 2003-16998 communique: in the luminous tube that is made of the light transparent ceramic container, with cerium halide (20wt%～69wt%), sodium halide (30wt%～79wt%), (the halid total amount of Tl and In is 1wt%～20wt%) made up and enclose (whole be 100wt%) for thallium halide and indium halide, obtain metal halide lamp thus, can realize high-luminous-efficiency (117lm/W or more than the 117lm/W) in this metal halide lamp and suppress the reduction of lux maintenance (luminous fluxmaintenance factor).
As mentioned above, if the material that uses the sub-material of ZnO particle or be doped with the ZnO system of In forms the ultraviolet cutoff film, then can suppress to become fade (discoloration).But the cut-off wavelength of described ultraviolet cutoff film (transmitance is the upper limit wavelength of the long wavelength side below 50% or 50%) is about 380nm, thereby even if be adjusted into towards the long wavelength side skew, also mostly is most 400nm～425nm.And the wavelength dependency that the change that lures worm property or paper fiber etc. of insect is faded is till near the 500nm of visible range, therefore, we can say that the change that reduces or suppress paper fiber etc. fades, lures the effect of insect and insufficient.On the other hand, by utilize yellow uitramarine etc. near the 500nm of visible range or near the low trap lamp that bulb or fluorescent lamp constituted that following light ends the 500nm accomplished.But, color rendering, visual effect aspect and insufficient, and can't be used in the lighting use that needs big light quantity.
And, in No. 3293499 communique of Japan Patent, manufacture experimently lamp according to No. 3293499 communique of described Japan Patent and the characteristic of described lamp is measured the back discovery, the power lamp of putting down in writing as embodiment in No. 3293499 communique of Japan Patent different with rated power (rated dissipation) can't obtain the required characteristics of luminescence.In addition, for the high-pressure discharge lamp of being put down in writing in No. 3293499 communique of Japan Patent, record is not constructed corresponding size with lamp or is used for determining the size etc. of temperature (cold spot), and wherein said temperature is the evaporation that is used for determining to enclose metal halide.Therefore, may cause and to obtain the characteristic put down in writing according to the halid kind of selected terres rares.
Open in the 2003-16998 communique the Japan Patent spy, open the 2003-16998 communique and the lamp manufactured experimently presents high-luminous-efficiency and lux maintenance according to described Japan Patent spy.But it is green that the glow color of lamp obviously is, and average color rendering index is below 75 or 75, thereby and be not suitable for the purposes of shop or outdoor lighting.
This shows that above-mentioned existing high-pressure discharge lamp and ligthing paraphernalia obviously still have inconvenience and defective, and demand urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of novel high-pressure discharge lamp and ligthing paraphernalia, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The objective of the invention is to, overcome the defective that existing high-pressure discharge lamp and ligthing paraphernalia exist, and provide a kind of visual effect of color, color rendering good, can suppress brightness on the one hand and descend, on the one hand colour temperature is adjusted to colour temperature for example and be high-pressure discharge lamp and the ligthing paraphernalia of 3200K～3700K etc.
The object of the invention to solve the technical problems realizes by the following technical solutions.
(1) the present invention's (first invention) high-pressure discharge lamp comprises: luminous tube; The protection tube of light transmission is provided with in the mode that coats described luminous tube; And light cut film; with the particle that constitutes by metal oxide that absorbs 600nm or the light below the 600nm and make light transmission more than the 600nm as main body; be formed on the outer surface or inner surface of described protection tube, and optical characteristics is that the cutoff rate of the light of wavelength 450nm is 20%～50%.
According to the high-pressure discharge lamp of first invention, be formed on the inner surface or outer surface of protection tube with the metal oxide particle of absorbing wavelength 600nm or the light below the 600nm light cut film as main body.Therefore, be arranged on the luminous tube of lighting a lamp with high temperature around the optical characteristics of the strong light cut film of heat resistanceheat resistant deterioration ability be that the cutoff rate of the light of wavelength 450nm is 20%～50%, thereby can make the radiating light of luminous tube become required tone.And, can reduce colour temperature, by make blue light by best resultsization, and obtain can not reduce visual effect, color rendering and the colour temperature that reduces, and reduce brightness hardly and the good high-pressure discharge lamp same with existing high-pressure discharge lamp.
(2), can enumerate Fe as the particle that described metal oxide constituted
2O
3, in the Fe system complex oxide any or the part of its composition is replaced as formed metal oxide particle behind other elements.And, as the particle that constitutes by described metal oxide, can enumerate and comprise ZnO and Fe
2O
3Particle.By being made as above-mentioned particle, can obtain the same effect of high-pressure discharge lamp with described (1) by the particle that metal oxide constitutes.
(3), can enumerate the spherical hexagonal crystal α-Fe that comprises average grain diameter 30nm～100nm as the particle that described metal oxide constituted of light cut film
2O
3The polyhedron hexagonal Z nO particle of particle and average grain diameter 30nm～100nm and situation about constituting.Thus, colour temperature is changed and can significantly not reduce luminous flux, thereby can obtain high colour developing and colour temperature is the discharge lamp of 3200K～3700K.
(4) transmitance of the 450nm/550nm of light cut film is than the scope that is preferably 0.7～0.9.By the transmitance ratio is set in the described scope, and colour temperature is controlled at the scope of 3200K～3700K, make that colour temperature is 3200K～3700K, average color rendering index Ra is more than 93 or 93, special colour rendering index R9 is more than 70 or 70, colour temperature is changed and can significantly not reduce luminous flux, thereby can obtain high colour developing and colour temperature is the discharge lamp of 3200K～3700K.
(5) as the particle that constitutes by metal oxide, can enumerate among Ti-Sb-Cr-O, Zr-V-O, Sn-V-O, the Ti-Sb-Cr-O any, perhaps the part of its composition is replaced as the composite oxide of metal particle of other elements.By being made as above-mentioned particle, can obtain the same effect of high-pressure discharge lamp with described (1) by the particle that metal oxide constitutes.
(6), can enumerate the situation of the light cut film of having added zinc oxide (ZnO) particle that is doped with indium as employed smooth cut film in the high-pressure discharge lamp.Herein, the particle diameter of ZnO particle is preferably 50nm～500nm, more preferably 100nm～200nm.And the thickness of light cut film is preferably 0.3 μ m～2 μ m.By being made as the light cut film of having added the zinc oxide particle that is doped with indium, lure the worm property except reducing insect, can also cause that the change of paper fiber etc. is faded to meeting, the ultraviolet light of the damage of skin or eyes etc. ends, produce thereby suppress these phenomenons.
(7) can be listed below situation: in luminous tube, with the halide of sodium (Na) and thallium (Tl) and at least a halide in dysprosium (Dy), holmium (Ho), thulium (Tm) and the lithium (Li), count 90 weight % or more than the 90 weight % and enclosed with total enclosed volume ratio of metal halide.Thus, can obtain one side is keeping high-color rendering and can significantly not reduce the discharge lamp that luminous flux, one side are adjusted to colour temperature 3200K～3700K.
(8) in the high-pressure discharge lamp of described (1), be preferably and use the Si compound to make the light cut film.The modification body that described Si compound is preferably by silicone resin (silicone resin) or described silicone resin is constituted.Thus, can obtain 400 ℃ of film heat resistances～more than 600 ℃ and film-strength firm by overlay film.
And, in described high-pressure discharge lamp, carry out work with rated power 10W～1000W, and when vertically lighting a lamp and the colour temperature changing value of level when lighting a lamp be 500K or 500K when following, can reduce by the caused colour temperature variation of the direction of lighting a lamp, therefore preferable.
(9) the present invention's (second invention) ligthing paraphernalia is characterised in that and comprises: apparatus body; And the high-pressure discharge lamp that is equipped on described (1) on the described apparatus body.By ligthing paraphernalia being made as described formation, can obtain the ligthing paraphernalia of the various characteristics of luminescences or electrical characteristics excellence.
The present invention compared with prior art has tangible advantage and beneficial effect.By technique scheme, high-pressure discharge lamp of the present invention and ligthing paraphernalia have following advantage and beneficial effect at least: high-pressure discharge lamp of the present invention and ligthing paraphernalia, visual effect, the color rendering of color are good, can suppress brightness on the one hand and descend, being adjusted to colour temperature for example on the one hand, colour temperature is 3200K～3700K etc.
In sum, a kind of high-pressure discharge lamp of the present invention comprises: luminous tube; The protection tube of light transmission is provided with in the mode that coats described luminous tube; And light cut film; with the particle that constitutes by metal oxide that absorbs 600nm or the light below the 600nm and make light transmission more than the 600nm as main body; be formed on the outer surface or inner surface of described protection tube, and optical characteristics is that the cutoff rate of the light of wavelength 450nm is 20%～50%.The present invention has obvious improvement technically, and has tangible good effect, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the key diagram of the high-pressure discharge lamp of first example of the present invention.
To be the previous high-pressure discharge lamp of expression with the relative energy of the high-pressure discharge lamp of second example of the present invention distribute Fig. 2 and the performance plot of the relation of wavelength.
Fig. 3 is the key diagram of the ligthing paraphernalia of second example of the present invention.
Fig. 4 A, Fig. 4 B are the key diagrams of the high-pressure discharge lamp of the 3rd example of the present invention.
To be the previous high-pressure discharge lamp of expression with the relative energy of the high-pressure discharge lamp of the 3rd example of the present invention distribute Fig. 5 and the performance plot of the relation of wavelength.
Fig. 6 is the key diagram of the high-pressure discharge lamp of the 4th example of the present invention.
Fig. 7 is the key diagram of the ligthing paraphernalia of the 5th example of the present invention.
Fig. 8 be the expression the 4th example lamp in employed visible selection absorbability by the chart of the light transmission rate of overlay film.
Fig. 9 is the chart that the beam split distribution of the lamp of the lamp of the 4th example and first precedent is compared gained.
1,31,51: metal halide lamp 2,32,52: luminous tube
3,33: interior pipe 4,38,66,81: light cut film
5,39,53: illuminating part
6a, 6b, 40a, 40b, 54a, 54b: thin tube part
7a, 7b, 41a, 41b, 55a, 55b: power supply body
8a, 8b, 42a, 42b: power supply line 9,34,64: socket
10,43: shrink end socket portion 12: becket
13,37: lamp holder 14: the protection tube supporting slice
21: ligthing paraphernalia 22: cover glass
23: outer tube bulb 25: reflector
26: lamp socket 33a: projection
35: outer tube 36: banded ring
45: elasticity retaining member 45a: supporting slice
60: lamp stand 61: guide body
63: protection tube 65a, 65b: non-formation zone
L: line O: central part
θ a, θ b: radiation angle
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to high-pressure discharge lamp and its embodiment of ligthing paraphernalia, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
Relevant aforementioned and other technology contents, characteristics and effect of the present invention can be known to present in the following detailed description that cooperates with reference to graphic preferred embodiment.By the explanation of embodiment, when can being to reach technological means that predetermined purpose takes and effect to get one more deeply and concrete understanding to the present invention, yet appended graphic only provide with reference to the usefulness of explanation, be not to be used for the present invention is limited.
In high-pressure discharge lamp of the present invention, the light cut film is formed on the outer surface or inner surface of protection tube.Herein, for the light cut film, can use following film, promptly, with absorbing wavelength 500nm or the light below the 500nm and the particle that constitutes by metal oxide that makes light transmission more than the wavelength 500nm as main body, and optical characteristics is that the cutoff rate of the light of wavelength 450nm is 15%～40% film; Perhaps with the particle that constitutes by metal oxide that absorbs 600nm or the light below the 600nm and make light transmission more than the wavelength 600nm as main body, and optical characteristics is that the cutoff rate of the light of wavelength 450nm is 30%～50% film.And, as the light cut film, also can use following film, promptly, with with absorbing wavelength 500nm or the light below the 500nm and the metal oxide particle that makes the light transmission more than the wavelength 500nm and absorbing wavelength 600nm or the light below the 600nm and make particle that the metal oxide particle of the light transmission more than the wavelength 600nm mixed as main body, and optical characteristics is, the cutoff rate of the light of wavelength 450nm is 20%～50%, and the deviation duv that causes because of black body radiation (black radiation) is+0.001～-0.001 film.
In the present invention, be used as described smooth cut film by the average grain diameter of using thickness to be made as 0.3 μ m～2 μ m, being doped with zinc oxide (ZnO:In) particle of indium as the ultraviolet cutoff film of 100nm～200nm, and it is higher and reduce higher lamp or the ligthing paraphernalia of effect that lures worm property to obtain the ultraviolet cutoff rate.
Secondly, concrete example of the present invention is described.But the present invention is not limited to following example.
(first example)
Fig. 1 is an example of the high-pressure discharge lamp of expression first example of the present invention.
In first example, the light cut film is to form as follows.
Just, at first in addition dry after the zinc acetate in the aqueous solution for example and inidum chloride be hydrolyzed, produce the ZnO that is doped with In as the light cut material (In: Zn=5: 95, average grain diameter 150nm) particle through heat treatment.The indium doping amount of described smooth cut material is 2.5wt%～20wt% with respect to Zn.In the ZnO particle that is doped with In,, be mixed with Fe with 97: 3 ratios in weight ratio as described smooth cut material
2O
3(average grain diameter is about 60nm), described stuff and other stuff is dispersed in the diethylene glycol monoethyl ether organic solvents such as (Diethylene Glycol Monoethyl Ether), and mix by the adhesive (binder) that organo-silicon compound constituted, the dispersion liquid of desired concn is adjusted in the scope of the 10wt%～20wt% that reaches the ZnO particle that is doped with In and composite oxide particle.Secondly, the outer surface of pipe 3 in described dispersion liquid is coated on is in the scope of 0.3 μ m～2 μ m, for example is the light cut material film of 1 μ m to form thickness.Then, in 180 ℃～250 ℃, described smooth cut material film is carried out heat treatment in 30 minutes, and form light cut film 4.
According to first example, 50% cut-off wavelength is about about 425nm in the ZnO:In powder, Fe
2O
3Produce from about 600nm and to absorb, 50% cut-off wavelength is about 550nm, makes described composition reach optimization and ultraviolet light is ended up to long wavelength side, can reduce the damage etc. of the luring of variable color, insect, skin or the eyes of the color of paper fiber etc. thus.And, can reduce colour temperature, and, just can not obtain the good high-pressure discharge lamp equal with existing high-pressure discharge lamp thereby can not reduce visual effect and color rendering by making ending of blue light reach optimization.
When not using the zinc oxide particle that is doped with indium, and with absorbing wavelength 600nm or the light below the 600nm and make that light more than the wavelength 600nm sees through substantially by Fe
2O
3, when the metal oxide particle that constituted such as Fe system complex oxide forms the light cut film as main body, though the following cutoff rate of wavelength 400nm or 400nm can reduce, but the optical characteristics about light cutoff rate more than the 400nm etc. but roughly is equal to described example.
On the other hand, to the existing no film lamp (first precedent) of reflection-type (reflector type), with as the ceramic metal helide lamp that is formed with the ultraviolet light cut film (the present invention) of first example, investigate colour temperature (TCP respectively, Colour Temperature), colo(u)r bias (Duv.), average color rendering index (Ra) and special colour rendering index (behind the R9～R15), have obtained the result shown in the following table 1.Can learn clearly that according to table 1 under the situation of lamp of the present invention, compare with the lamp of unglazed cut film, the cutoff rate of the light of 450nm is 0.25, colour temperature is also lower, and presents the numerical value of various optical characteristics excellences.In addition, in table 1, x, y represent the chromaticity coordinate obtained according to colour temperature etc.And, light summation is made as 1.000, light amount ratio is that 0.850 expression light quantity is reduced to till 85%.
[table 1]
(table 1-1)
| The classification of lamp | 450nm film cutoff rate | x | Y | Color temperature (k) | The colour temperature deviation | Average color rendering index Ra |
| Elder generation's precedent | No film | 0.3 8 | 0.3 8 | 3950 | -0.0005 | 96 |
| First example | 0.25 | 0.4 1 | 0.3 8 | 3401 | 0.0051 | 92 |
(table 1-2)
| The classification of lamp | R9 | R10 | R11 | R12 | R13 | R14 | R15 | Light amount ratio |
| Elder generation's precedent | 79 | 95 | 97 | 84 | 99 | 95 | 95 | 1.000 |
| First example | 70 | 86 | 94 | 70 | 94 | 90 | 92 | 0.850 |
Wherein, in table 1, R9～R15 represents special colour rendering index.
To the coating of all the other all identical comparative example lamps and first example except interior pipe does not form the light cut film with first example lamp of light cut film, after the relative radiant characteristic of investigation for wavelength, obtain result shown in Figure 2.In addition, in Fig. 2, line a represents the situation of comparative example lamp, and line b represents the situation of the lamp of having the light cut film of first example.In Fig. 2, from about 650nm, long wavelength side do not have a difference by effect, therefore no matter have or not and carry out light by nearly all presenting identical radiant characteristic.Can be learnt clearly that by Fig. 2 under the situation of curve b, a compares with curve, radiant is controlled lessly relatively near wavelength 450nm.Under the situation of Fig. 2, the cutoff rate of the light during wavelength 450nm is 30%.
(second example)
Fig. 3 is the summary sectional view of the ligthing paraphernalia of expression second example of the present invention.
According to the ligthing paraphernalia of second example, can obtain following optimal ligthing paraphernalia, promptly, there is not photochromic variation etc., need not ultraviolet ray and a part of blue light, and be used for preventing the damage of shone thing etc. or prevent the deterioration of paper, cloth etc., and be used for the low worm that lures.
(the 3rd example)
Fig. 4 A, Fig. 4 B represent an example of the high-pressure discharge lamp of the 3rd example of the present invention.Wherein, Fig. 4 A is the overall diagram of expression high-pressure discharge lamp, and Fig. 4 B is the vertical view of the elasticity retaining member that constitutes of the conduct one of the high-pressure discharge lamp of presentation graphs 4A.
Symbol 31 expressions among Fig. 4 A possess the luminous tube 32 of ceramic as the metal halide lamp of high-pressure discharge lamp.As the interior pipe 33 of transparent protector tube of protection luminous tube 32, be arranged on described luminous tube 32 around.As the E shape socket 34 with the power supply unit of described luminous tube 32 conductings be installed in described in pipe 33.The outer tube 35 of light transmission be located in the pipe 33 around.The bottom of outer tube 35 utilizes metal banded ring 36 and is fixed on the ceramic lamp holder 37.
Be arranged on the top of described interior pipe 33 as the projection 33a of exhaust thin slice (chip).Elasticity retaining member 45 is installed on the described projection 33a.In the elasticity retaining member 45, supporting slice 45a extends towards the below from four positions of the periphery of the tabular body of annulus, and the leading section of these supporting slices 45a flexibly is connected to the inner surface of outer tube 35.And, between the inner surface of pipe 33 outer surface and outer tube 35, prevent coming off of outer tube 35 thus in described elasticity retaining member 45 flexibly is clamped in.
Light cut film 38 is formed on the outer surface of described outer tube 35.Herein, light cut film 38 is by spherical hexagonal crystal α-Fe of average grain diameter 30nm～100nm
2O
3The polyhedron hexagonal Z nO particle of particle, average grain diameter 30nm～100nm and the Si compound that adds as adhesive constitute.The Si compound is made of the modification body of silicone resin or described silicone resin.
Luminous tube 32 possess illuminating part 39 and on the direction of principal axis of described illuminating part 39 the thin tube part 40a, the 40b that extend of rightabout towards each other, and luminous tube 32 is formed with discharge space in inside.Illuminating part 39 is that two hemispheric luminous elements will being split to form are up and down engaged at the line L place of central authorities and constitute.The discharge medium that will be except comprising mercury (Hg), also comprise metal halide and start gas (startinggas) is sealing in the described luminous tube 32.In metal halide, the halide of sodium (Na) and thallium (Tl) and at least a halide in dysprosium (Dy), holmium (Ho), thulium (Tm) and the lithium (Li) has been enclosed the 90wt% of total enclosed volume or more than the 90wt%.
As described metal halide, the preferred halide that iodide (iodide) are, bromide (bromide) is, but also can be chloride or fluoride.The enclosed volume of metal halide is 5mg～20mg, preferred 8mg～15mg.The enclosed volume of metal halide is to adjust according to the form of luminous tube 32.An example (wherein, in the parantheses being weight percent) of below representing the inclosure weight rate of metal halide.That is, for example, Na (20～60)-Tl (5～30)-Tm (30～60)-Ho (0～20)-Li (0～20), Na (30～50)-Tl (5～20)-Dy (20～50)-Ho (0～20)-Li (0～20).
The pair of electrodes (not shown) that imports from thin tube part 40a, 40b disposes in opposite directions with discharge space.Power supply body 41a, 41b that leading section is engaging electrode respectively are provided on thin tube part 40a, the 40b, and by glass dust etc. and seal.Power supply line 42a, 42b are electrically connected then with described power supply body 41a, 41b respectively.The contraction end socket portion 43 that power supply line 42a, 42b are sealed is formed on described interior socket sides of managing in 33.
Light cut film 38 is formed on the outer surface of outer tube 35 in the manner as described below.At first, make α-Fe
2O
3, ZnO particle be scattered in in IPA the solvents such as (isopropyl alcohol, isopropyl alcohols) as principal component, mixing Si then therein is adhesive.Because α-Fe
2O
3, ZnO particle to the absorption efficiency height of the light of wavelength 400nm～500nm, dispersiveness is also excellent, so help forming the optical thin film that possesses required light cut-off characteristics.To α-Fe
2O
3, ZnO dispersion amount adjust so that the transmitance of the 450nm/550nm of light cut film 38 is than in 0.7～0.9 scope, and reach the colour temperature of 3200K～3700K.Then, the bulb that will become outer tube 35 is immersed in the described solution, upwards mentions and makes solution coat on outer tube 35 with fixed speed, after the drying, carries out the heat treatment of stipulated time under 150 ℃～300 ℃, thereby forms described smooth cut film 38 in addition.
According to the high-pressure discharge lamp of the 3rd example, by forming the formation that on the outer surface of outer tube 35, is formed with light cut film 38, the transmitance of 450nm/550nm than the situation of (=0.84) then shown in Fig. 5 and following table 2.The high-pressure discharge lamp of this example have that halide with the halide of sodium (Na) and thallium (Tl) and rare earth metal is made up and the characteristics of luminescence of high efficiency and high colour developing, and, by forming the light cut film of light by the effect excellence, and colour temperature can be become required colour temperature, thereby high colour developing of acquisition and colour temperature are the discharge lamp of 3200K～3700K.In addition, in Fig. 5, curve a represents the situation of comparative example lamp, and curve b represents the situation of the lamp of having the light cut film of the 3rd example.
[table 2]
| The classification of lamp | Power (W) | Luminous flux | Colour temperature (K) | Ra | R9 |
| ZnO+Fe 2O 3 | 145.8 | 12855 | 3444 | 97 | 78 |
| No film | 146.2 | 13885 | 3825 | 98 | 81 |
| Variable quantity | 0.997 | 0.926 | -381 | 1 | -3 |
Specifically, in the 3rd example, be to light is described by the situation that is formed on the outer surface of outer tube by overlay film, but light perhaps also can be formed on two outer surfaces by both being formed on the outer surface of luminous tube by overlay film.In addition, when on the outer surface that is formed on outer tube, form the operation aspect excellence of light cut film.And, also can use the high-pressure discharge lamp of Fig. 4 A, Fig. 4 B to constitute as shown in Figure 3 ligthing paraphernalia.
(the 4th example)
Fig. 6 represents an example of the high-pressure discharge lamp of the 4th example of the present invention.
Described power supply body 55a is supported by the institutes such as guide body 61 that an end is fixed on the tubular on the lamp stand (stem) 60, and is electrically connected with following socket.Described power supply body 55b is supported by the lead that an end is fixed on the lamp stand 60, and is electrically connected with following socket.In addition, on described lamp stand 60, the starter (starter) of starter lamp etc. can be set optionally also.
Described luminous tube 52 is protected by the protection tube 63 of hard glass system.It is bulb-shaped that described protection tube 63 is the T shape that the front obturation.It is distolateral to be installed in another of protection tube 63 as the E shape socket 64 with the power supply body of luminous tube 52 conductings.
As at least a portion that absorbs 600nm or the visible light below the 600nm and visible light that the light more than the 600nm is seen through substantially select absorbability by overlay film, be light cut film 66, be formed on the zone the regional 65a of non-formation, the 65b of formation respectively of institute on the end (top) of described lamp protection tube 63 and the other end (sealing of outer tube bulb) on the outer surface of protection tube 63.
When not forming described smooth cut film 66, colour temperature is about 4000K.But, by forming light cut film 66, can keep color rendering, and make the colour temperature optimization and reach 3500K.
About light cut film 66; make when being 0 ° with respect to the central shaft of luminous tube 52 with the direction of central part 0 quadrature; be distolaterally to be coated on from central division that 0 opening angle θ a is in the scope of 0 °～65 ° (shape according to outer tube bulb 63 is 0 °～55 ° sometimes) at one of protection tube 63, being coated on from central division in socket 64 sides, 0 opening angle θ b is in the scope of 0 °～60 ° (shape according to outer tube bulb 63 is 0 °～45 ° sometimes).Just, form light cut film 66, forming the regional 65a of non-formation, 65b thus respectively at the outer surface of the protection tube 63 in the scope of the radiation angle θ a of the regulation of the central part 0 of luminous tube 52 and θ b.The method that is being coated with coating fluid etc. after the regional 65a of non-formation, 65b can impose in advance by the regulation zone of external spot bubble 63 and cover forms.
As mentioned above, by the regional 65a of non-formation is set, and make inclosure things in the luminous tube 52 because the influence of gravity and accumulating in lower side in large quantities.Thus, even if lower towards the colour temperature of the light of a distolateral radiation of protection tube 63, the colour temperature of the light of a distolateral radiation of spot bubble 63 can be because of light cut film 66 descend yet outwardly, thereby the colour temperature of described part can not produced than large deviation.
And the regional 65b of non-formation is that the mirror that is reflected after the light transmission light cut film 66 of luminous tube 52 radiation reflects and turns back to the more zone of ratio of protection tube 63 once more.But, in described zone, not forming light cut film 66, thus will reduce as the ratio of whole metal halide lamp 51, twice through light cut film 66, thus can make colour temperature take place to be suppressed than the phenomenon of large deviation.
As previously discussed; high-pressure discharge lamp according to the 4th example; protection tube 63 one distolateral and another distolaterally keeping non-formation zone and forming light cut film 66; therefore; lamp 51 is when monomer is lit a lamp and pack utensil into and colour temperature when lighting a lamp can obtain optimization, and color rendering and photochromic deviation and inequality will be greatly improved.
In addition, in the 4th example, the thickness of light cut film is 0.7 μ m, but is not limited to this, and the thickness of described smooth cut film also can be 0.3 μ m～1.0 μ m.Herein,, be difficult to thickness is adjusted, and make easily by overlay film and produce interference colour (interferencecolor), thereby transmitance is changed easily when thickness during less than 0.3 μ m.And, if thickness surpasses 1.0 μ m, then cause the decline of film-strength easily.
In the 4th example, use had the absorbefacient metal oxide particle of visible selection (ZnO, Fe
2O
3) be used as the light cut film, and ZnO particle, Fe
2O
3The situation that atomic average grain diameter is respectively 30nm, 40nm is described, but is not limited to this, and the average grain diameter of described metal oxide particle also can be 0.05 μ m～0.3 μ m.Herein, when average grain diameter during less than 0.05 μ m, it is complicated that manufacturing process can become, and cost rises, and the crystalline state variation, is easy to generate the reduction of absorption characteristic and the reduction of transmitance.And if average grain diameter surpasses 0.3 μ m, then cause visible transmitance to reduce easily.
And the light cut film also can be with ZnO particle, Fe
2O
3Particulate forms as main body, but to form as main body by Zr-Si-Pr-O, Bi-V-O, Ti-Ni-Sb-O, Ti-Ni-W-O, Ti-Ni-Nb-O or the particulate that metal oxide was constituted that the part that these are formed is replaced as behind other elements.And, in the light cut film, also can mix with Al
2O
3, SiO
2, Y
2O
3Particulate as principal component.By mixing described particle, can adjust transmitance, thereby improve film-strength.
In the 4th example, the situation of the formation of the T shape of as the front obturation of protection tube bulb-shaped (T type) is described.But, be not limited to this, also can be the BT type, so long as the shape of the unidirectional socket type that a distolateral obturation, then shape limits.And, also can in protection tube, coat luminous tube and be provided with and bring into play the guard shield (shroud) that when this luminous tube breaks, prevents the effect of dispersing.In addition, the middle bulb that surrounds luminous tube can also be set in the inboard of protection tube, thereby make the high-pressure discharge lamp of triple tube structure.
In addition; in the metal vapour discharge lamp of luminous tube with light transparent ceramic system; when with socket when the attitude of upside is lit a lamp, a distolateral top of protection tube will be down, the inclosure thing of luminous tube is accumulated in the lower side of protection tube in a large number because of the influence of gravity.Therefore, will reduce, and will raise towards the colour temperature that the other end of protection tube is sidelong the light of penetrating towards the colour temperature of the light of a distolateral radiation of protection tube.For example, when becoming 3500K, will further reduce towards the colour temperature of the light of a distolateral radiation of protection tube, so colour temperature will produce than large deviation when on the high-pressure discharge lamp that carries out luminous specification with colour temperature 4200K, being coated with the lighting cut film.
And; when in the utensil at downward irradiation (down light) etc. described high-pressure discharge lamp being lit a lamp; the light that radiates out from luminous tube for once sees through the light cut film and turns back to the zone of protection tube after the mirroring that is reflected once more, and is more in another distolateral ratio of protection tube.And if be pre-formed the light cut film in described zone, so described light sees through the light cut film with twice, thereby makes colour temperature that more large deviation take place.
Therefore, the 4th example forms non-formation zone like that as described, make protection tube one distolateral and another distolaterally can not form the light cut film.Thus, the colour temperature that can suppress to be sidelong towards a distolateral and other end of protection tube the light of penetrating excessively reduces, and makes colour temperature reach optimization, and color rendering and photochromic deviation and inequality are improved.
(the 5th example)
Fig. 7 represents an example of the high-pressure discharge lamp of relevant other examples of the present invention.Wherein, attached to the member identical with same-sign and omission explanation with Fig. 6.
Be formed on the outer surface of protection tube 53 with the particle that constitutes by gold (Au) and silicon (si) compound light cut film 81 as main body.The average grain diameter of gold particle is about 15nm, be coated with following coating fluid, and so that visible light selects absorbability to be formed described smooth cut film 81 by the mode that the thickness of overlay film 81 reaches 1.0 μ m approximately, wherein said coating fluid is to be that the described gold particle of adding 0.7wt% in the adhesive that constitutes of material forms by the thermal endurance silicone resin (isopropyl alcohol) of the heat curing-type of 8wt% and ethanol.
Fig. 8 is the chart of the light transmission rate of expression light cut film 81.As can be known, visible light selects absorbability can be produced the absorption that causes because of gold (Au) by overlay film 81 near the about 535nm of wavelength shown in the chart of Fig. 8.The luminescence peak of the about 535nm of wavelength of halogenation thallium (Tl) that does not form light cut film 81 is bigger, and described luminous intensity can affect greatly duv.But, by forming light cut film 81, can make the colour temperature optimization and reach 3500K, and can improve color rendering or visual effect.And, by forming light cut film 81, can adjust duv from 0 towards a direction, be the visual effect at center thereby can further improve with the redness.Lamp of the present invention is shown in following table 3, compare with the first headlight that does not form light cut film 81, can improve color rendering (the special colour rendering index R9 of the visual effect that average color rendering index Ra, expression are red) and visual effect, and make and adjust duv from 0 towards a direction and become possibility.
[table 3]
| CCT(K) | duv | Ra | R9 | |
| Elder generation's precedent (no film) | 3970 | 0.0012 | 94 | 69 |
| Example (with film) | 3509 | -0.003 3 | 97 | 79 |
Fig. 9 is that (line a) distributes with the beam split of the lamp (line b) of first precedent and compares the chart of gained to the lamp of the 6th example.By utilizing near the luminous intensity 81 couples of about 535nm of light cut film to adjust, make relative the increasing of ratio of the luminous intensity of red and blueness, just obtain above-mentioned effect thus.About the adjustment of duv, just can move as long as increase the addition of gold (Au) particle towards a lateral deviation, therefore can suitably adjust.
In addition, in other examples, be described forming, but be not limited to this with the particle that constitutes by gold of average grain diameter 1.0 μ m and silicon compound situation as the light cut film of the thickness 1.0 μ m of main body.As long as the average grain diameter of gold is in the scope of 4nm～100nm.Herein, if average grain diameter less than 4nm, then manufacturing process will become complicated, thus cost will rise.And, if average grain diameter surpasses 100nm, then can't obtain the absorption peak characteristic of the absorption of optical absorption spectra.On the other hand, as long as the thickness of light cut film is 0.3 μ m～1.0 μ m.Its reason is described in the 4th example.
And, in other examples, also can in the light cut film, mix with ZnO, Al
2O
3, SiO
2, Y
2O
3Particle as principal component.Thus, transmitance can be adjusted, and film-strength can be improved.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (10)
1, a kind of high-pressure discharge lamp is characterized in that comprising:
Luminous tube;
The protection tube of light transmission is provided with in the mode that coats described luminous tube; And
The light cut film; with the particle that constitutes by metal oxide that absorbs 600nm or the light below the 600nm and make light transmission more than the 600nm as main body; be formed on the outer surface or inner surface of described protection tube, and optical characteristics is that the cutoff rate of the light of wavelength 450nm is 20%～50%.
2, high-pressure discharge lamp according to claim 1, it is characterized in that: the particle that described metal oxide constituted is Fe
2O
3, in the Fe system complex oxide any, or the part of its composition is replaced as formed metal oxide particle behind other elements.
3, high-pressure discharge lamp according to claim 2, it is characterized in that: the particle that described metal oxide constituted comprises ZnO and Fe
2O
3
4, high-pressure discharge lamp according to claim 1 is characterized in that: the particle that described metal oxide constituted of light cut film is the spherical hexagonal crystal α-Fe that comprises average grain diameter 30nm～100nm
2O
3The polyhedron hexagonal Z nO particle of particle and average grain diameter 30nm～100nm and constituting.
5, high-pressure discharge lamp according to claim 4 is characterized in that: the transmitance of the 450nm/550nm of described smooth cut film is than being in 0.7～0.9 scope.
6, high-pressure discharge lamp according to claim 1, it is characterized in that: the particle that described metal oxide constituted is any among Ti-Sb-Cr-O, Zr-V-O, Sn-V-O, the Ti-Sb-Cr-O, or the part of its composition is replaced as formed composite oxide of metal particle behind other elements.
7, according to the described high-pressure discharge lamp of arbitrary claim in the claim 1 to 6, it is characterized in that: added the zinc oxide particle that is doped with indium in the described smooth cut film.
8, high-pressure discharge lamp according to claim 7 is characterized in that: the thickness of described smooth cut film is 0.3 μ m～2 μ m, and the described average grain diameter that is doped with the zinc oxide particle of indium is 50nm～500nm.
9, according to the described high-pressure discharge lamp of arbitrary claim in the claim 1 to 6, it is characterized in that: in luminous tube, with the halide of sodium and thallium and at least a halide in dysprosium, holmium, thulium and the lithium, count 90 weight % or more than the 90 weight % and enclosed with total enclosed volume ratio of metal halide.
10, a kind of ligthing paraphernalia is characterized in that comprising:
Apparatus body;
High-pressure discharge lamp according to claim 1 is provided on the described apparatus body; And
The lamp circuit unit makes described high voltage discharge lamp lighting.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008115449 | 2008-04-25 | ||
| JP2008115450 | 2008-04-25 | ||
| JP2008115449A JP2009266649A (en) | 2008-04-25 | 2008-04-25 | High-pressure discharge lamp and illumination fixture |
| JP2008165017 | 2008-06-24 |
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| Publication Number | Publication Date |
|---|---|
| CN101567295A true CN101567295A (en) | 2009-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101372104A Pending CN101567295A (en) | 2008-04-25 | 2009-04-23 | High-pressure discharge lamp and lighting equipment |
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|---|---|
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| CN (1) | CN101567295A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103977A (en) * | 2009-12-22 | 2011-06-22 | 奥斯兰姆有限公司 | High pressure discharge lamp |
| CN102484035A (en) * | 2009-09-04 | 2012-05-30 | 皇家飞利浦电子股份有限公司 | Compact HID lamp with multiple protective envelopes |
| CN102897847A (en) * | 2012-10-30 | 2013-01-30 | 威水星空（北京）环境技术有限公司 | Nanometer iron trioxide as well as preparation method and purpose of nanometer iron trioxide |
-
2008
- 2008-04-25 JP JP2008115449A patent/JP2009266649A/en active Pending
-
2009
- 2009-04-23 CN CNA2009101372104A patent/CN101567295A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102484035A (en) * | 2009-09-04 | 2012-05-30 | 皇家飞利浦电子股份有限公司 | Compact HID lamp with multiple protective envelopes |
| CN102103977A (en) * | 2009-12-22 | 2011-06-22 | 奥斯兰姆有限公司 | High pressure discharge lamp |
| CN102103977B (en) * | 2009-12-22 | 2016-03-02 | 奥斯兰姆有限公司 | High-pressure discharge lamp |
| CN102897847A (en) * | 2012-10-30 | 2013-01-30 | 威水星空（北京）环境技术有限公司 | Nanometer iron trioxide as well as preparation method and purpose of nanometer iron trioxide |
| CN102897847B (en) * | 2012-10-30 | 2015-07-22 | 威水星空（北京）环境技术有限公司 | Nanometer iron trioxide as well as preparation method and purpose of nanometer iron trioxide |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009266649A (en) | 2009-11-12 |
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Open date: 20091028 |