CN1854099A - Flash lamp grass - Google Patents

Flash lamp grass Download PDF

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Publication number
CN1854099A
CN1854099A CNA2006100726841A CN200610072684A CN1854099A CN 1854099 A CN1854099 A CN 1854099A CN A2006100726841 A CNA2006100726841 A CN A2006100726841A CN 200610072684 A CN200610072684 A CN 200610072684A CN 1854099 A CN1854099 A CN 1854099A
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CN
China
Prior art keywords
weight
glass
flasher lamp
lamp glass
content
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CNA2006100726841A
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Chinese (zh)
Inventor
约尔格·欣里希·费希纳
赖因哈德·门内尔
弗朗茨·奥特
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Schott AG
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Schott Glaswerke AG
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Publication of CN1854099A publication Critical patent/CN1854099A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/302—Vessels; Containers characterised by the material of the vessel
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
    • C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
    • C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
    • C03C3/093—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium containing zinc or zirconium
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/095—Glass compositions containing silica with 40% to 90% silica, by weight containing rare earths
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/80—Lamps suitable only for intermittent operation, e.g. flash lamp

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

The invention discloses a special flash glass, which is characterized by the following: adding at least one doping material in the glass component; adjusting UV-edge; selecting doping oxide from TiO<SUB>2</SUB>, Fe<SUB>2</SUB>O<SUB>3</SUB>, CeO<SUB>2</SUB> and Nb<SUB>2</SUB>O<SUB>3</SUB>; reducing color temperature effectively.

Description

Flasher lamp glass
Technical field
The present invention relates to flasher lamp glass.
Background technology
Modern digital camera has built-in photoflash lamp usually, and photographic camera is connected photoflash lamp when needed automatically.Portable camera more and more receives an acclaim, so that the photographic camera that more and more has external photoflash lamp is arranged on market.
The photoflash lamp that the photoflash lamp of today and the former magnesium powder by being mixed with potassium permanganate constitute does not matter, and this magnesium powder is manually lighted, and is electronics mostly now.X-flash contains useful xenon-or krypton gas pipe of having filled, and in the discharge of pipe mesohigh, it produces electrical spark, and electrical spark produces flash of light.The typical duration of light of this flash of light is about 1/1000 second.This duration of light than former flashbulb has shortened many, need consider this point when selecting the time shutter.
The photographic camera of high value has so-called flash socket, and external photoflash lamp can be placed on it.Consistent with the pattern of each photographic camera mostly today in this applicable flash of light, so that play a role with its automatic function.The external producer also provides photoflash lamp sometimes, and it can be complementary with different photographic cameras with the flash of light adapter.Be used for making that in this pre-flash so-called red-eye effect (light is by the red retinal reflex of eyes in this effect, and pupil just demonstrates redness like this) reduces to minimum when using flash of light.
X-flash is the high-pressure discharge lamp that is used for pulsed operation, and it is made of Glass tubing or quartz glass tube, electric current supplying wire in its terminal welding (that is, anode, negative electrode).
Negative electrode without heating includes emissive material usually, as Cs2O and barium oxide, is used for reducing the electronics output work.The life-span of photoflash lamp determines by the reduction of its light output, its may be because the variable color of pipe, owing to the evaporation of electrode materials causes.When same structure, the flash power of X-flash is high more, and the life-span is just short more.
Because the preparation of quartz glass tube is expensive, therefore all use more cheap glass for most photoflash lamp, as borosilicate glass because this glass than silica glass have simpler the workability aspect the glass technology and with the good fusion matching of the metal of glass lead-in wire.
The research and development of the photoflash lamp of latest generation are to develop towards more and more littler and more and more compacter construction size.What be attached thereto is the temperature load that has increased glass shell, so that must the special glass of research and development.
One photon can not correspond to a certain temperature, yet hot object gives off the light with characteristic temperature distribution, can be derived the temperature of object by this light.So most light source characterizes with heat radiator.If heat an object, as a steel, it will redden from beginning sometime to be heated so.If continue heating, its flavescence bleaches and change indigo plant at last then.It always launches successive hertzian wave spectrum, and its maximum value moves to short wavelength (promptly from redness to blueness) along with the temperature that increases.The spectrum composition of the light that (Utopian) black object is launched when certain temperature characterizes with colour temperature.Temperature is high more, and spectrum just moves towards the spectrographic blue region more.Colour temperature is measured with Kelvin temperature, in the colour temperature of this corresponding daylight temperature for about 5500K.
For example know a kind of borosilicate glass that is applied to X-flash from DE 40 12 288 C1, it has extra high Cs 2O content.Have been found that increase, can prolong the life-span of photoflash lamp along with Cs2O content.
Another problem of flasher lamp glass is that major part provides with UV-radiating form when producing flash of light.Glass is less seeing through in the UV-zone, because the UV-radiation of being launched irreversibly damages adjacent plastic components, that is to say image and the function destroying it and manifest.Since the UV-radiation of being launched make polymkeric substance flavescence (" Yellowing "), become muddy (" Haze ") and under serious situation, tend to break.Breaking of polymkeric substance can cause whole prod can not use fully in the working hour.The prejudicial especially line of departure is the line of departure of mercury at this, and it is used for producing the light of 313nm.For deleterious UV-effect being become minimum, the glass of photoflash lamp also should have the UV-barrier effect in the desired scope.
Summary of the invention
Therefore the objective of the invention is to, a kind of borosilicate glass is provided, it has satisfied the temperature-load and/or the UV-load request of desired pipe glass.Glass particularly according to the present invention has certain adjustment UV-edge if possible than the glass temperature Tg height of prior art glass, and then has the corresponding colour temperature that has descended of photoflash lamp light source.
Be applicable to photoflash lamp on the one hand according to glass of the present invention, the electrode of lamp also is applicable to the lamp (" external electrode lamps ") with outer electrode on the other hand by being incorporated into the inside of lamp with glass melting.
This glass is particularly suitable for and contact conductor, as the contact conductor fusion that is made of molybdenum or tungsten metal, and also is suitable for and alloy, as the fusion of kovar (Fe-Co-Ni) alloy.
According to the present invention, above-mentioned purpose realizes by such glass moiety that in wonderful mode this glass moiety has suitable high glass temperature Tg and is used for following flasher lamp glass:
SiO 250-70 weight %
B 2O 30-20 weight %
Al 2O 335-22 weight %
Li 2O＜1.0 weight %
Na 2O＜3.0 weight %
K 2O＜1.0 weight % is at this
∑ Li 2O+Na 2O+K 2O be＜1.0 weight % and
MgO 0-8 weight %
CaO 0-20 weight %
SrO 0-10 weight %
BaO 0-30 weight % is at this
∑ MgO+CaO+SrO+BaO be 2-30 weight % and
TiO 20-10 weight %
Be preferably＞0.5-10 weight %
ZrO 20-3 weight %
CeO 20-10 weight %
Fe 2O 30-1 weight %
WO 30-3 weight %
Bi 2O 30-3 weight %
MoO 30-3 weight %
ZnO 0-5 weight %,
At this ∑ SiO 2+ Al 2O 3+ B 2O 3Be 55-90 weight %, and the finings of possible typical concentrations, as As 2O 3, Sb 2O 3, vitriol, muriate etc. and their combination, at this Cs 2O exists with the amount of＜9 weight %, is preferably not exist.
Particularly preferably, glass according to the present invention does not have basic metal except unavoidable impurities.
Flasher lamp glass according to the present invention is particularly advantageous, because it has preferred high glass temperature Tg, in fact it be adjustable as and be higher than 450 ℃, is preferably 500 ℃-800 ℃, is preferably 600 ℃-800 ℃ especially, is in particular to be higher than 600 ℃.Be interpreted as glass transformation temperature (at this referring to Schott " glass guide " (Guide toGlass), Heinz G.Pfaender, 1996, the 20 pages the-the 22nd page of Chapman and Hall) in the present invention for glass temperature.Utilize viscosity be characterized in glass in the transition range from fused solution to the solid transient process.From about 10 12The viscosity of Pas begins to think glass.
Possible this high glass temperature according to the present invention has special advantage for flasher lamp glass, promptly can significantly improve the life-span, because glass is to be designed for especially to bear high temperature load.
According to another variation scheme, can select to be used for moiety like this according to flasher lamp glass of the present invention, make its UV-radiation that barrier properties be arranged for infringement property.Especially following for this reason glass moiety according to the present invention is suitable for photoflash lamp, as long as temperature load is not proposed extra high requirement, yet can absorb UV-, and the adjusting of UV-barrier properties and colour temperature just proposes special requirement:
SiO 255-79 weight %
B 2O 33-25 weight %
Al 2O 30-10 weight %
Li 2O 0-10 weight %
Na 2O 0-10 weight %
K 2O 0-10 weight % is at this
∑ Li 2O+Na 2O+K 2O be 0.5-16 weight % and
MgO 0-2 weight %
CaO 0-3 weight %
SrO 0-3 weight %
BaO 0-3 weight %,
ZnO 0-3 weight % is at this
∑ MgO+CaO+SrO+BaO+ZnO be 0-10 weight % and
ZrO 20-3 weight %
CeO 20-1 weight %
Fe 2O 30-1 weight %
WO 30-3 weight %
Bi 2O 30-3 weight %
MoO 30-3 weight %
TiO 20-10 weight %
And the finings of possible typical concentrations, as As 2O 3, Sb 2O 3, vitriol, muriate etc. and their combination, at this Cs 2O exists with the amount of＜9 weight %, is preferably not exist.
Glass particularly preferably according to the present invention does not have basic metal except unavoidable impurities.
Therefore, to be applied in according to the glass in the flasher lamp glass of the present invention be borosilicate glass in particularly preferred conduct.Borosilicate glass contains the SiO as first component 2And B 2O 3With alkaline earth metal oxide, as CaO, MgO, SrO and BaO and optional alkalimetal oxide, as Li as other components 2O, Na 2O and K 2O.
According to particularly preferred embodiment, in flasher lamp glass, use one or more dopant materials.At this doping oxide preferably, be in particular and be selected from following material: TiO 2, Fe 2O 3, CeO 2And Nb 2O 3Particularly preferred doping oxide is TiO 2
These doping oxides are particularly added to be used for photoflash lamp, particularly in the glass moiety of X-flash, absorb the UV-edge in just particularly certain glass to regulate UV-through adjusting.Be interpreted as at this for the UV-edge that with nm is unit, have the thick glass of about 0.2mm at given wavelength to having below the shorter wavelength＜wavelength during 0.1% spectral transmittance.Especially striving for reaching the UV-edge is 300-350nm, is preferably 310-330nm, is preferably the wavelength region of 313-325nm especially, and glass is printing opacity in this wavelength region more than UV-edge.
Be added into doping oxide with appropriate vol.For example can be used as empirical rule and add, this dopant material is with 0.005-10 weight %, and preferably with 0.005-5 weight %, especially preferably the amount with 0.1-4.5 weight % exists.
For example in moiety, can include Fe 2O 3And Nb 2O 3And/or CeO 2Amount be 0.005-5 weight %, be preferably 0.1-4.5 weight %, the TiO that comprises 2Amount be 0.005-10 weight %, be preferably 0.005-5 weight % and be preferably 0.1-4.5 weight % especially.
Also can use the mixture of multiple doping oxide, as TiO 2And Fe 2O 3Or TiO 2And CeO 2Mixture.
By adding suitable doping oxide with appropriate vol, can influence the position at UV-edge like this, promptly realize stopping for the UV-light of wavelength＜320nm for flasher lamp glass according to the present invention, just the UV-edge is positioned at the place greater than 313nm, thereby and has stopped the deleterious mercury line of 313nm.
Preferred doping oxide according to the present invention is a titanium dioxide.At＞0.5-10 weight %, be preferably＞1-7 weight %, be preferably especially＞use TiO in the content range of 1-5 weight % 2TiO 2Preferably high-content be 10 weight %, preferably be up to 5 weight % at this.TiO 2Preferred minimum content be 1 weight %.Contained TiO 2Preferably 80%-99% at least is in particular 99.9 or 99.99% with Ti 4+Exist.Proved 99.999% Ti in some cases 4+Content is meaningful, preferably carries out fusion at this under the oxidisability condition.
Particularly understand like this for the oxidisability condition at this, promptly with this understanding in advance the titanium of add-on with Ti 4+Exist or be oxidized to this valence state.This oxidisability condition can for example easily reach by adding nitrate, particularly base metal nitrate and/or alkine earth metal nitrate in fused solution.By being blown into oxygen and/or the exsiccant air also can produce the oxidisability fused solution.Possible in addition is adopts the oxidisability burner to regulate, as producing the oxidisability fused solution when the charge composition fusion.
TiO 2Have such advantage, promptly have steep especially UV-edge, so that be particularly suitable for that effective UV-stops and high transmissivity is provided in visible wavelength range simultaneously.
If the TiO of glass moiety 2Content＞2 weight % and application have total Fe 2O 3The mixture of content＞5ppm (furnace charge) is so preferably used As 2O 3Clarification is also used the nitrate fusion, to avoid glass variable color in the wavelength of visible light scope.Nitrate preferably with have＞base metal nitrate of 1 weight % content adds, to restrain the variable color of glass in the visible region.Although nitrate when fusion preferably adds in the glass with the form of basic metal and/or alkine earth metal nitrate, at the NO in finished glass after the clarification 3The preferred maximum of concentration only is 0.01 weight %, and is 0.001 weight % in many cases to the maximum.
The possibility of the variable color that another kind of prevention glass is not expected in visible wavelength range is that glass melting liquid does not have muriate basically, does not particularly add muriate and/or use Sb when glass melting 2O 3Clarify.When virtually completely during as finings, avoiding using TiO as it without muriate 2The time glass that occurs become blueness.Vitriol also is that so it is used as finings, can cause glass (380nm-780nm) variable color in visible wavelength range, thereby does not preferably also use vitriol.The maximum level of muriate or vitriol is 2 weight %, is in particular 1 weight %, is preferred at this content that is 0.1 weight % to the maximum.
For fear of variable color, preferably use As 2O 3Clarification, and under the oxidisability condition, implement.By for example using nitrate and As 2O 3Oxidisability clarification under the condition can stop ilmenite (FeTiO especially 3) formation of complex compound.The generation of this complex compound causes the variable color consumingly in the visible region.
In order to realize that suitable UV-stops, also can be with Fe 2O 3Join according in the flasher lamp glass of the present invention.The amount that is added according to the present invention is 0-1 weight %.Preferably in glass, contain Fe 2O 3Content be＜500ppm.In order to regulate the UV-edge, be in particular 10-500ppm, be preferably 50-200ppm, the content that is preferably 70-150ppm has especially proved suitable.
If contain iron, it in melting process, is oxidized to its oxidation valence state 3 by the oxidisability condition as the raw material that contains nitrate by use so +, minimum is reduced in possible variable color in visible wavelength range like this.In glass, preferably contain Fe 2O 3Content be＜500ppm.Fe 2O 3Usually exist as impurity.Glass moiety according to the present invention preferably contains the Fe of amount given in advance 2O 3, especially preferably do not contain Fe substantially 2O 3
Not only can regulate the UV-edge by adding above-mentioned doping oxide, just UV-stops, but also can regulate transmissivity, particularly regulates the scattering of glass.
In addition, in flasher lamp glass of the present invention, can regulate glass temperature Tg in desired mode.This for example can be in particularly preferred mode by regulating and B 2O 3The Al that content is relevant 2O 3Content and carry out.So in the glass moiety, preferred or high Al 2O 3Content and low B 2O 3Content combination or low Al 2O 3Content and high B 2O 3Content uses together.
According to embodiment preferred, ∑ Al 2O 3+ B 2O 3Be 11-35 weight %, be in particular 18-25 weight %.Glass temperature Tg can move to certain high scope like this.
Al in flasher lamp glass particularly preferably 2O 3Content is 10-20 weight %, is in particular 14-20 weight %, B 2O 3Content is 1-15 weight %, is in particular 4-10 weight %.The glass temperature Tg of flasher lamp glass can be adjusted to more than 600 ℃ like this.
According to another embodiment of the invention, work as Al 2O 3Content is 1-5 weight %, is in particular 1-4 weight % and B 2O 3Content is 10-20 weight %, and when being in particular 15-20 weight %, the glass temperature Tg of flasher lamp glass can be adjusted to more than 450 ℃.
Therefore, by using the Al of certain combined amount 2O 3And B 2O 3Thereby, can on purpose reach glass temperature and reach relevant therewith performance impact.
Demonstrate astoundingly, glass of the present invention is very stable to tanning by the sun when the UV-radiation, so that can be a little P dO, PtO usually 3, PtO 2, PtO, RhO 2, Rh 2O 3, IrO 2And/or Ir 2O 3The common maximum level of these materials is 0.1 weight %, is preferably 0.01 weight %, and % is particularly preferred in this 0.001 weight.The minimum content that is used for this purpose is generally 0.01ppm, is at least 0.05ppm and is in particular at least that 0.1ppm is preferred at this.
The invention still further relates to stroboscopic light sources with outer casing shell, outer casing shell contains with good grounds flasher lamp glass of the present invention or is made of flasher lamp glass according to the present invention, at this by in flasher lamp glass, being added at least a dopant material, the colour temperature of the stroboscopic light sources 800-1500K that descended, be preferably 900-1200K, be in particular 1000K.
What be used as dopant material is the above-mentioned materials of above-mentioned amount, particularly preferably is at this and is selected from following material: TiO 2, Fe 2O 3, CeO 2And Nb 2O 3
According to the present invention, the stroboscopic light sources with outer casing shell can have the colour temperature of 5500K-7500K, is in particular 5500K-6500K, is preferably about 6000K the most especially.
The decline of colour temperature has many advantages.So provide the spectrum of similar as far as possible daylight at this.The selection of correct colour temperature is important in photography, thereby can be with correct color picked-up subject matter, just as it is truly obtained by eyes.
Following general embodiment is suitable as according to substrate glass used in the present invention:
Use borosilicate glass.B generally 2O 3Content is that the borosilicate glass of 5-15 weight % demonstrates high chemical stability.B 2O 3Content be the borosilicate glass of 15-25 weight % demonstrate good workability and with linear thermal expansion (CTE) matched well of tungsten that is used for contact conductor and kovar alloy (Fe-Co-Ni-alloy).
Flasher lamp glass according to the present invention contains the SiO of 50-79 weight % 2The machinable difficulty that is higher than the glass of 79 weight % has increased, at the SiO that is lower than 50 weight % 2The time thermal expansion increase so that the fusion matching of fusing into metal commonly used is become poorer.SiO 2The particularly preferred scope of content is 55-65 weight %.
According to the present invention, contain B 2O 3Content favourable be greater than 0 weight %, be preferably more than 3 weight %, be preferably more than 5 weight % and be preferably at least 10 weight % especially or at least 15 weight %, it is particularly preferred being at least 16 weight % at this.B 2O 3Maximum level be maximum 25 weight %, yet preferably be 22 weight % to the maximum, it is particularly preferred being 20 weight % to the maximum at this.What the boric acid that contains was used for improving glass takes off glass stability and chemical stability.When surpassing given scope, chemical stability has descended again.Work as B 2O 3Content is in the higher part timesharing of given scope, can be to special application particularly advantageous.
Although glass of the present invention also can not contain Al under the discrete situation 2O 3, but common Al 2O 3Minimum content be 0.1, be in particular 0.2 weight %.0.3 minimum content be preferred, in this minimum of 0.7, particularly at least 1.0 weight % are particularly preferred.It is particularly advantageous that the minimum content of 5 weight % has also proved.Al 2O 3High-content be 20 weight %, be 17 weight % to the maximum at this, it is preferred being in particular 15 weight %.Particularly preferably be most 14-17 weight %.In some cases, confirmed that maximum amount is 8 weight %, it is enough being in particular 5 weight %.The Al that contains 2O 3The stabilization that is used for glass.
The combination of combination by low boron oxide content and high alumina content or high boron oxide content and low alumina content can be adjusted to glass Tg in the desired scope as describing in detail.
Alkalimetal oxide is preferred only to be existed with more a spot of content that can reach 3 weight % separately.For special application, be possible up to the content of 10 weight %.Preferably the total content of alkalimetal oxide is no more than 5 weight %, and particularly 10 weight % or 16 weight % because otherwise glass heat expands change greatly, thereby become more difficult with the fusion coupling of fusing into metal.The content of alap alkalimetal oxide is preferred, for example all is no more than 1 weight %, this further preferably the total content of these alkalimetal oxides also be lower than 1 weight %.Especially particularly preferably be except unavoidable impurities, the glass moiety does not contain basic metal.Preferably with 0-10, particularly＜1.0 the amount of weight % is used Li 2O preferably with 0-10, particularly uses Na with the amount of＜3.0 weight % 2O, and, particularly use K with the amount of＜1.0 weight % preferably with 0-10 2O, the minimum of these various alkalimetal oxides for≤0.1 weight % or≤0.2 and special≤0.5 weight % is preferred.
Separately with the amount of 0-30 weight %, especially with 0-20 weight %, preferably the amount with 0-10 weight % exists the alkaline earth metal oxide of Mg, Ca, Sr and Ba according to the present invention.Particularly preferably being MgO content is 0-8, is in particular 0-2 weight %, and CaO content is 0-20, is in particular 0-3 weight %, and SrO content is 0-10, is in particular 0-3 weight %, and BaO content is 0-30, is in particular 0-3 weight %.The total amount of alkaline earth metal oxide is 0-30 weight %, is in particular 0-10 weight %.
Glass can not contain ZnO, is the highest 5 weight % yet the minimum that preferably contains is 0.1 weight % and maximum level.
Alkaline earth metal oxide and zinc oxide can exist with the amount of total amount up to 35 weight % in glass, and they are used for the stabilization of glass.Yet preferably alkaline earth metal content (regulate most below the 10 weight % by+ZnO) total amount.
CeO 2Content be preferably 0-10 weight %, at this 0-1 and to be in particular 0-0.5 weight % be preferred.Bi particularly preferably 2O 3Amount with 0-3 weight % exists.
In addition, WO 3, MoO 3And ZrO 2Can also be to contain 0-5 weight % or 0-3 weight % independently separately, be in particular the amount of 0.1-3 weight %.MnO 2Content be 0-5 weight %, at this 0-2, the amount that is in particular 0-1 weight % is preferred.
In addition, glass can also contain the finings commonly used of share commonly used, and it is used for avoiding variable color respectively.Finings commonly used for example is As 2O 3, Sb 2O 3, it is usually with the amount up to 1 weight %, and preferably the amount up to 0.6 weight % exists in finished glass, perhaps CeO 2, it is with the amount up to 1.5 weight %, and the amount that is preferably 1 weight % is used.When using As 2O 3During clarification, implement under the oxidisability condition as describing in detail, glass preferably contains the As of 0.01-1 weight % 2O 3For alkali metal compound, its clarification mainly is based on its decomposition or volatilization, and the resistates that stays in glass is the part as alkali metal oxide content.
Glass of the present invention is particularly suitable for for example preparing sheet glass according to float glass process, is particularly preferred in this preparation of managing glass.It is particularly suitable for being used for preparation and has 0.5mm at least, and particularly the 1mm and the upper limit are up to 2cm at least, particularly the pipe of the diameter of high 1cm.Particularly preferred pipe diameter is 2-5mm.Demonstrated this pipe and had 0.05mm at least, the wall thickness of 0.1mm at least particularly, this at least 0.2mm be particularly preferred.Maximum wall thickness is maximum 1mm, this be to the maximum＜0.8mm or＜0.7mm is preferred.
Be equipped with photoflash lamp to be fit to be applied to photography or to be used for producing photoeffect, perhaps for the reason of aesthstic aspect or in order to obtain flash of light and/or pre-flash according to the housing of glass moiety of the present invention.For example in photography, have built-in camera and have an every other flash of light that is used for, particularly the mobile phone of photographic camera electronic flash, compactness/minor structure size is needed or desired, photoeffect in laser demonstration or stroboscope, its generation that is used for photoeffect also is used for for example surveying revolution, speed and the frequency of all types of revolving members.
Therefore, the invention provides a series of advantage: be applied to photoflash lamp, particularly the glass of X-flash has high glass transformation temperature Tg.Because high transition temperature Tg, glass according to the present invention are specially adapted to the high temperature application and satisfy extreme temperature requirement.
According to particularly preferred embodiment of the present invention, can be by adding dopant material, particularly doping oxide, as TiO 2, Fe 2O 3And CeO 2Absorb and on purpose regulate UV-.By in the glass moiety, regulating certain UV-edge, can be by adding doping oxide, as TiO 2, absorb the deleterious UV-radiation that for example can damage photoflash lamp plastic member on every side
In a particularly preferred embodiment,, be preferably the TiO that joins in the glass especially by using definite hotchpotch 2, by the colour temperature of outer casing shell reduction stroboscopic light sources according to the present invention.Particularly preferably be as being reduced to as 6000K from 7000K.Thereby be absorbed in the short wavelength in UV and the blue region and reduce colour temperature by the dopant material in the glass moiety.
Also be particularly suitable for especially little photoflash lamp, particularly X-flash according to flasher lamp glass of the present invention, it can be inserted in instrument internal or as being inserted into the outside of instrument.
Embodiment
Followingly explain the present invention according to embodiment, embodiment just illustrates according to principle of the present invention, but does not limit the present invention.
Embodiment
Following table 1 has provided the embodiment 1-10 of the glass moiety with Tg＞600 ℃.
Table 1
Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5 Embodiment 6 Embodiment 7 Embodiment 8 Embodiment 9 Embodiment 10
SiO 2 59.90 61.30 50.80 57.00 60.40 57.00 60.80 61.60 63.80 64.50
B 2O 3 4.20 0.20 13.20 7.90 5.00 7.90 6.50 7.80 9.00 9.00
Al 2O 3 14.30 16.50 11.70 16.80 15.00 16.80 16.00 16.20 16.50 15.50
Li 2O
Na 2O
K 2O
MgO 2.50 5.10 5.00 5.10 5.30 2.70 4.50 2.80
CaO 10.30 13.40 2.10 7.20 2.10 7.40 8.20 3.00 5.00
SrO 0.30 6.60 6.60 3.20
BaO 8.80 7.60 24.00 3.30 1.00 3.30 1.00 3.50 3.20
ZnO 5.40 2.00
TiO 2 0.50 0.50
ZrO 2 1.00 0.50 1.00 0.50 1.00
CeO 2 0.20 0.20
Fe 2O 3
Summation 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00
CTE 4.60 4.70 4.54 3.70 3.72 3.70 3.70 3.77 3.14 3.22
T14.5 693 686 693 691 684 691 693
Tg 720 790 627 719 706 719 717 716 721 719
T13 725 795 663 729 719 729 726 722 732 735
T7.6 935 1005 876 944 916 944 931 942 965 976
T4 1240 1305 1215 1259 1216 1259 1235 1263 1297 1317
Density 2.63 2.67 2.72 2.57 2.60 2.57 2.53 2.48 2.43 2.43
DK 6.1 6.6 6.2 5.4 5.4 5.6 5.1
TAN- DELTA 11 15 9 12 12 86 19
HR 1 1 1 1 1 1 1 1 1
CTE is at the thermal linear expansion coefficient (10 of (20-300 ℃) -6/ K)
T14.5 is 10 14.5Temperature during the viscosity of dPas (℃)
Tg... glass transformation temperature (℃)
T13 is 10 13Temperature during the viscosity of dPas (℃)
T7.6 is 10 7.6Temperature during the viscosity of dPas (℃)
T4 is 10 4Temperature during the viscosity of dPas (℃)
Density (g/cm 3)
DK... (no unit) ... specific inductivity
Tan delta (10 -4) ... delta is a loss angle
HR... according to the classification of ISO/DIN standard
Following table 2 shows embodiment 11-17, and it is suitable for the glass of photoflash lamp, do not allow temperature load is proposed so high requirement (high Tg) at this, but especially to high UV-stop/the simple workability of colour temperature and glass proposed high requirement.
Embodiment 11-14 is particularly suitable for the fusion with the contact conductor that is made of kovar alloy and molybdenum.Embodiment 15-17 is particularly suitable for the fusion with the contact conductor that is made of tungsten.
Table 2
Embodiment 11 Embodiment 12 Embodiment 13 Embodiment 14 Embodiment 15 Embodiment 16 Embodiment 17
SiO 2 68.4 69.3 69.5 65.4 71.9 74.6 73.2
B 2O 3 17.7 16.9 17.4 17.9 15.7 17.1 15.6
Al 2O 3 3.8 3.5 2.8 3.4 4 1.3 1.2
Li 2O 0.9 1 0.7 0.2 0.5
Na 2O 0.9 0.5 0.5 0.5 1.5 3.8 3.5
K 2O 7.6 8.5 7.4 6.8 3.7 1.3 1.3
MgO 0.4 0.6 0.4
CaO 0.3 0.7 0.4 0.6
SrO
BaO 1
ZnO 0.8 0.8
ZrO 2
TiO 2 0.7 0.9 5 0.6 0.9 4.2
Summation 100 100 100 100 100 100 100
CTE(le-6/K) 5.09 5.14 4.92 4.75 4.11 3.86 3.75
Tg(℃) 487 497 485 478 527 519 511
Temperature when (10^7.6dPas) (℃) 706 710 714 708 781 774 770
Temperature when (10^4dPas) (℃) 1043 1045 1074 1040 1173 1143 1127
CTE (20-300 ℃) ... thermal linear expansion coefficient (10 -6/ K)
Adopt the glass moiety of the present invention's preparation, can regulate high glass temperature at this.By on purpose using dopant material can regulate the UV-edge, and reduce the colour temperature of photoflash lamp in desired mode.

Claims (19)

1. flasher lamp glass, especially for the flasher lamp glass of X-flash, contain following moiety:
SiO 250-70 weight %
B 2O 30-20 weight %
Al 2O 35-22 weight %
Li 2O＜1.0 weight %
Na 2O＜3.0 weight %
K 2O＜1.0 weight % is at this
∑ Li 2O+Na 2O+K 2O be＜1.0 weight % and
MgO 0-8 weight %
CaO 0-20 weight %
SrO 0-10 weight %
BaO 0-30 weight % is at this
∑ MgO+CaO+SrO+BaO be 2-30 weight % and
TiO 20-10 weight %
Be preferably＞0.5-10 weight %
ZrO 20-3 weight %
CeO 20-10 weight %
Fe 2O 30-1 weight %
WO 30-3 weight %
Bi 2O 30-3 weight %
MoO 30-3 weight %
ZnO 0-5 weight %,
At this Σ SiO 2+ Al 2O 3+ B 2O 3Be 55-90 weight %, and the finings of possible typical concentrations, at this Cs 2O exists with the amount of＜9 weight %, is preferably not exist.
2. flasher lamp glass, especially for the flasher lamp glass of X-flash, contain following moiety:
SiO 255-79 weight %
B 2O 33-25 weight %
Al 2O 30-10 weight %
Li 2O 0-10 weight %
Na 2O 0-10 weight %
K 2O 0-10 weight % is at this
∑ Li 2O+Na 2O+K 2O be 0.5-16 weight % and
MgO 0-2 weight %
CaO 0-3 weight %
SrO 0-3 weight %
BaO 0-3 weight %,
ZnO 0-3 weight % is at this
∑ MgO+CaO+SrO+BaO+ZnO be 0-10 weight % and
ZrO 20-3 weight %
CeO 20-1 weight %
Fe 2O 30-1 weight %
WO 30-3 weight %
Bi 2O 30-3 weight %
MoO 30-3 weight %
And the finings of possible typical concentrations, at this Cs 2O exists with the amount of＜9 weight %, is preferably not exist.
3. flasher lamp glass according to claim 1 and 2 is characterized in that, glass does not contain basic metal except unavoidable impurities.
4. according to the described flasher lamp glass of one of claim 1-3, it is characterized in that contain at least a dopant material in the glass moiety, it is selected from doping oxide, is selected from TiO especially 2, Fe 2O 3, CeO 2And Nb 2O 3, to regulate the UV-edge.
5. flasher lamp glass according to claim 4 is characterized in that, dopant material Fe 2O 3, Nb 2O 3And/or CeO 2With 0.005-5 weight %, there is TiO in the amount with 0.1-4.5 weight % especially 2With 0.005-10 weight %, preferably with 0.005-5, especially preferably the amount with 0.1-4.5 weight % exists.
6. according to claim 4 or 5 described flasher lamp glasses, it is characterized in that, have the mixture of following doping oxide: TiO 2And Fe 2O 3Mixture or TiO 2And CeO 2Mixture.
7. according to claim 1-6 described flasher lamp glass one of at least, it is characterized in that glass temperature Tg is adjusted to more than 450 ℃, be preferably 500-800 ℃, be preferably 600-800 ℃ especially.
8. according to claim 1-7 described flasher lamp glass one of at least, it is characterized in that, by changing Al 2O 3Content and B 2O 3Content and regulate the glass temperature Tg of flasher lamp glass within the specific limits.
9. flasher lamp glass according to claim 8 is characterized in that, ∑ Al 2O 3+ B 2O 3Be 11-35 weight %, be in particular 18-25 weight %.
10. according to Claim 8 or 9 described flasher lamp glasses, it is characterized in that Al 2O 3Content is 10-20 weight %, is in particular 14-20 weight %, B 2O 3Content is 1-15 weight %, is in particular 4-10 weight %.
11. flasher lamp glass according to claim 10 is characterized in that, the glass temperature Tg of flasher lamp glass is more than 600 ℃.
12. according to Claim 8 or 9 described flasher lamp glasses one of at least, it is characterized in that Al 2O 3Content is 1-5 weight %, is in particular 1-4 weight %, B 2O 3Content is 10-20 weight %, is in particular 15-20 weight %.
13. flasher lamp glass according to claim 12 is characterized in that, the glass temperature Tg of flasher lamp glass is more than 450 ℃.
14. stroboscopic light sources with outer casing shell, wherein said outer casing shell contains the described flasher lamp glass of one of with good grounds claim 1-13 or by constituting according to the described flasher lamp glass of one of claim 1-13, the colour temperature of said stroboscopic light sources is by adding at least a dopant material and decline 800-1500K in flasher lamp glass, be preferably 900-1200K, be preferably 1000K especially.
15. the stroboscopic light sources with outer casing shell according to claim 14 is characterized in that dopant material is selected from TiO 2, Fe 2O 3, CeO 2And Nb 2O 3
16., it is characterized in that colour temperature is 5500K-6500K, is about 6000K especially according to the described stroboscopic light sources in one of claim 14 or 15 with outer casing shell.
17. according to claim 14-16 described stroboscopic light sources one of at least with outer casing shell, it is characterized in that, at least a dopant material is with the amount of 0.005-10 weight %, preferably with the amount of 0.005-5 weight %, and especially preferably exists with the amount of 0.1-4.5 weight %.
18. according to the described flasher lamp glass of one of claim 1-13 or according to the described stroboscopic light sources with outer casing shell of one of claim 14-17 in mobile phone application or for the application of mobile phone, in photographic camera application or for the application of photographic camera or the application in stroboscope.
19. flasher lamp glass according to claim 18 or have the application of the stroboscopic light sources of outer casing shell, it is to be built in mobile phone or the photographic camera or as the application of external instrument.
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