CN104341105A - Near-infrared light absorbing glass, element and light filter - Google Patents
Near-infrared light absorbing glass, element and light filter Download PDFInfo
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- CN104341105A CN104341105A CN201310337002.5A CN201310337002A CN104341105A CN 104341105 A CN104341105 A CN 104341105A CN 201310337002 A CN201310337002 A CN 201310337002A CN 104341105 A CN104341105 A CN 104341105A
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- glass
- infrared absorption
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- arbitrary
- absorption glass
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- 239000011521 glass Substances 0.000 title claims abstract description 120
- 229910052802 copper Inorganic materials 0.000 claims abstract description 9
- 229910052712 strontium Inorganic materials 0.000 claims abstract description 9
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 8
- 229910052788 barium Inorganic materials 0.000 claims abstract description 6
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 6
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 5
- 238000010521 absorption reaction Methods 0.000 claims description 60
- 230000003595 spectral effect Effects 0.000 claims description 30
- 230000000694 effects Effects 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 abstract description 17
- 238000002834 transmittance Methods 0.000 abstract description 17
- 229910052744 lithium Inorganic materials 0.000 abstract description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract 1
- 239000010949 copper Substances 0.000 description 21
- 239000011701 zinc Substances 0.000 description 7
- 238000004031 devitrification Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 239000005365 phosphate glass Substances 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 239000000146 host glass Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 description 2
- ASNHGEVAWNWCRQ-UHFFFAOYSA-N 4-(hydroxymethyl)oxolane-2,3,4-triol Chemical compound OCC1(O)COC(O)C1O ASNHGEVAWNWCRQ-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- DWYMPOCYEZONEA-UHFFFAOYSA-L fluoridophosphate Chemical compound [O-]P([O-])(F)=O DWYMPOCYEZONEA-UHFFFAOYSA-L 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- FUJCRWPEOMXPAD-UHFFFAOYSA-N lithium oxide Chemical compound [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 1
- 229910001947 lithium oxide Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 125000005341 metaphosphate group Chemical group 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C03C4/00—Compositions for glass with special properties
- C03C4/08—Compositions for glass with special properties for glass selectively absorbing radiation of specified wave lengths
- C03C4/082—Compositions for glass with special properties for glass selectively absorbing radiation of specified wave lengths for infrared absorbing glass
-
- 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
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
-
- 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
- C03C3/12—Silica-free oxide glass compositions
- C03C3/23—Silica-free oxide glass compositions containing halogen and at least one oxide, e.g. oxide of boron
- C03C3/247—Silica-free oxide glass compositions containing halogen and at least one oxide, e.g. oxide of boron containing fluorine and phosphorus
-
- 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
- C03C2201/00—Glass compositions
- C03C2201/06—Doped silica-based glasses
- C03C2201/08—Doped silica-based glasses containing boron or halide
- C03C2201/12—Doped silica-based glasses containing boron or halide containing fluorine
-
- 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
- C03C2201/00—Glass compositions
- C03C2201/06—Doped silica-based glasses
- C03C2201/20—Doped silica-based glasses containing non-metals other than boron or halide
- C03C2201/28—Doped silica-based glasses containing non-metals other than boron or halide containing phosphorus
Landscapes
- 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)
- Optical Filters (AREA)
Abstract
The invention provides near-infrared red light absorbing glass with superior chemical stability, a near-infrared light absorbing element and a near-infrared light absorbing light filter. The near-infrared light absorbing glass comprises the following components in percentage by weight: 15-30 percent of P<5+>, 1-8 percent of Al<3+>, 5-20 percent of Ba<2+>, 3-12 percent of Na<+>, 1-10 percent of Zn<2+>, 0-5 percent of Mg<2+>, 0-5 percent of Ca<2+>, 0-5 percent of Sr<2+>, 0.1-8 percent of Cu<2+>, 0-3 percent of Si<4+>, 1-10 percent of F<-> and 30-50 percent of O<2->. Fluorphosphate glass is taken as substrate glass. The content of the Cu<2+> in the glass is adjusted reasonably, and lithium is not added, so that the glass has superior chemical stability. Meanwhile, when the thickness is 0.45 millimeter, the transmittance display at the wavelength of 1,200 nanometers is less than 15 percent.
Description
Technical field
The present invention relates to a kind of near infra-red light heat absorbing glass, near-infrared absorption element and near-infrared absorption spectral filter.In particular, the near-infrared absorption spectral filter that the present invention relates to a kind of applicable chromatic sensitivity correction near-infrared absorption glass of, chemical stability excellence, and the near-infrared absorption element be made up of this glass and spectral filter.
Background technology
In recent years, digital camera and VTR camera are popularized in a large number, and people have had higher requirement to the imaging effect of this type of camera and image quality.For the near-infrared region near the spectrum sensitivity covering visible light district to 1100nm of the solid-state imagers such as digital camera and the magazine CCD of VTR, common opticglass is difficult to reach above requirement.So, need to use the spectral filter absorbing near-infrared region can obtain the image approximate with the visibility meter of people.
In prior art, near-infrared absorption glass is by adding Cu in phosphoric acid salt or fluorophosphate
2+manufacture near-infrared absorption glass.Japanese Unexamined Patent Publication 2006-342045 discloses a kind of near-infrared absorption glass, wherein containing a large amount of CuO, in phosphate glass, and Cu
2+content increase, the devitrification resistance of glass can be made to worsen, and in glass, crystal is easily separated out, and the liquidus temperature of glass rises, and the viscosity under liquidus temperature reduces, and produces the convection current of melten glass in formed glass, easily the problem such as generation brush line.The Lithium Oxide 98min of this glass also containing 2-12.5%, this can aggravate the phase-splitting trend of glass, and can make weather resistance and the poor processability of glass.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of near infra-red light heat absorbing glass, near-infrared absorption element and the near-infrared absorption spectral filter with superior chemical stability.
The technical scheme that technical solution problem of the present invention adopts is: near-infrared absorption glass, and composition contains the P of 15 ~ 30% by weight percentage
5+, 1 ~ 8% Al
3+, 5 ~ 20% Ba
2+, 3 ~ 12% Na
+, 1 ~ 10% Zn
2+, 0 ~ 5% Mg
2+, 0 ~ 5% Ca
2+, 0 ~ 5% Sr
2+, 0.1 ~ 8% Cu
2+, 0 ~ 3% Si
4+, 1 ~ 10% F
-and the O of 30 ~ 50%
2-.
Further, the Sb of 0 ~ 1% is also contained
3+or/and the Cl of 0 ~ 1%
-.
Further, consist of by weight percentage: the P of 15 ~ 30%
5+, 1 ~ 8% Al
3+, 5 ~ 20% Ba
2+, 3 ~ 12% Na
+, 1 ~ 10% Zn
2+, 0 ~ 5% Mg
2+, 0 ~ 5% Ca
2+, 0 ~ 5% Sr
2+, 0.1 ~ 8% Cu
2+, 0 ~ 3% Si
4+, 1 ~ 10% F
-, 30 ~ 50% O
2-, and the Sb of 0 ~ 1%
3+or/and the Cl of 0 ~ 1%
-.
Further, containing 20 ~ 27% P
5+.
Further, containing 1 ~ 4.9% Al
3+.
Further, containing 6 ~ 15% Ba
2+.
Further, containing 5 ~ 10% Na
+.
Further, containing 2 ~ 6% Zn
2+.
Further, containing 0.5 ~ 3% Mg
2+.
Further, containing 0.5 ~ 3% Ca
2+.
Further, containing 0.5 ~ 3% Sr
2+.
Further, containing 0.5 ~ 5% Cu
2+.
Further, containing 1 ~ 3.5% Cu
2+.
Further, containing 0 ~ 1% Sr
4+.
Further, containing 1.5 ~ 7% F
-.
Further, containing 35 ~ 44% O
2-.
Further, the acidproof effect stability D of glass
amore than 3 grades.
Further, when described near-infrared absorption thickness of glass is 0.45mm, be less than 15% in the display of wavelength 1200nm transmitance.
Near-infrared absorption element, is made up of above-mentioned near-infrared absorption glass.
Near-infrared absorption spectral filter, is made up of above-mentioned near-infrared absorption glass.
The invention has the beneficial effects as follows: the present invention take fluorphosphate glass as host glass, by Cu in Reasonable adjustment glass
2+content, do not add lithium, make glass have excellent chemical stability, simultaneously when thickness is 0.45mm, be less than 15% in the display of wavelength 1200nm transmitance.
Accompanying drawing explanation
Fig. 1 is the spectral transmittance graphic representation of the near-infrared absorption glass of embodiments of the invention 20.
Embodiment
Hereinafter, the degree that cationic components content accounts for whole zwitterion gross weight with this cation weight represents, the degree that anionic group content accounts for whole zwitterion gross weight with this negatively charged ion weight represents.
Near-infrared absorption glass of the present invention is host glass with fluorphosphate glass, is added with the Cu of near-infrared absorption effect
2+obtain.Copper in glass is the leading indicator of near-infrared absorption characteristic, and copper must with Cu in glass
2+form exist just effectively.For preventing Cu
2+be reduced into Cu
+, glass metal must keep alkaline environment.Work as Cu
2+content lower than 0.1% time, as near-infrared absorption spectral filter, fully can not reach necessary near-infrared absorption effect; If its content is more than 8%, the devitrification resistance of glass with become glassy and all reduce.Therefore Cu
2+content be defined as 0.1 ~ 8%, be preferably 0.5 ~ 5%, be more preferably 1 ~ 3.5%.
P
5+be the important component played a role as network forming component in glass, or in region of ultra-red, produce a kind of important component of absorption.When its content lower than 15% time, through this glass transmission color deterioration and in green; When its content is more than 30%, devitrification resistance and the weathering resistance of glass all worsen, therefore P
5+content be defined as 15 ~ 30%, be preferably 20 ~ 27%.
Al
3+it is the important component for improving stability in phosphate glass.Work as Al
3+content lower than 1% time, above-mentioned effect cannot be reached; When its content higher than 8% time, near-infrared absorbing characteristic reduce.Therefore Al
3+content be defined as 1 ~ 8%, be preferably 1 ~ 4.9%.
Na
+introducing effectively can improve the weathering resistance of glass, the alkalescence of glass metal can be improved simultaneously, make the near-infrared absorption excellent performance of glass.Contriver finds, with Li
+and K
+compare, Na
+introducing more effectively can improve chemical stability and the spectral response curve of glass simultaneously, but when its content is more than 12%, the chemical durability of glass can reduce, therefore Na
+content be defined as 3 ~ 12%, be preferably 5 ~ 10%.
R
2+be effectively improve that the one-tenth of glass is glassy, the component of devitrification resistance and workability, R here
2+represent Mg
2+, Ca
2+, Sr
2+, Ba
2+in one or more.As near-infrared absorption spectral filter, expect that the light transmission rate of visible range is higher, R
2+existence add the alkalescence of glass, but its too high levels then can make the devitrification tendency of glass increase.The present invention introduces appropriate Ca simultaneously
2+and Sr
2+, make glass not easily crystallization.Therefore R
2+content be defined as: wherein, Mg
2+be 0 ~ 5%, Ca
2+be 0 ~ 5%, Sr
2+be 0 ~ 5%, preferably, Mg
2+be 0.5 ~ 3%, Ca
2+be 0.5 ~ 3%, Sr
2+be 0.5 ~ 3%.
In addition, Ba
2+in glass not only can the formation of stabilized glass, but also devitrification resistance and the meltbility of glass can be improved.Contriver studies discovery, in glass of the present invention, introduce a large amount of Ba
2+with Na
+synergy, can significantly improve the alkalescence of glass metal, thus improves the near-infrared absorption performance of glass.Therefore Ba
2+content be defined as 5 ~ 20%, preferred content is 6 ~ 15%.
Zn
2+introducing effectively can improve the alkalescence of glass metal, the alkaline environment of glass metal is conducive to cupric ion with Cu
2+form exist, make can introduce more Cu in host glass
2+, to improve glass near infrared light absorbing properties; The present invention fills a prescription in composition in addition, Zn
2+with P
5+effect can make chemical durability of glass excellent, and particularly the water resistance of glass is excellent.The present inventor is found by research, replaces the form of zinc nitrate to introduce Zn with ZnO
2+, effectively can improve the chemical stability of glass, and be not easy to corrode smelting furnace.Meanwhile, the method can effectively reduce NO in fusion process
2isothermal chamber gas purging, reduces environmental pollution.Therefore Zn
2+content be defined as 1 ~ 10%, be preferably 2 ~ 6%.
Si
4+effectively can improve the stability of glass melting, but Si
4+too high levels, can reduce the melting of glass, thus must raise the melt temperature of glass, causes reducing cupric ion so that bringing the risk reducing colour sensitivity correct functioning.Therefore Si
4+content be defined as 0 ~ 3%, be preferably 0 ~ 1%.
O
2-be a kind of important anionic group in glass of the present invention, work as O
2-content very little time, Cu
2+easily be reduced into Cu
+, but its too high levels can cause the viscosity of glass to become higher, thus cause higher melt temperature.Therefore, O in the present invention
2-content be defined as 30 ~ 50%, be preferably 35 ~ 44%.
In near-infrared absorption glass, when improving melt temperature, Cu
2+easily be reduced into Cu
+, the color of glass becomes green from blueness, and the present invention researches and develops based on phosphate glass, and the chemical stability of phosphate glass is poor, and the present invention by adding appropriate F in glass
-, thus making the chemical stability of glass excellent, is preferably Li, K or Na with RF(R) form introduce.A small amount of LiF can improve the chemical stability of glass, and a small amount of KF can make the spectral response curve of glass improve, and NaF can improve chemical stability and the spectral response curve of glass simultaneously, therefore more preferably introduces with the form of NaF.The present inventor is found by research, works as F
-during too high levels, the absorptive character of glass at 1200nm place can obviously weaken, and therefore usually also need to adopt the mode of plated film to improve absorptive character; And work as F
-when content is less, glass can significantly improve in the absorptive character of this wavelength.Glass of the present invention is by rationally introducing F
-content, can reduce the dependence of product to coating technique, reduces element cost.Meanwhile, F
-too high levels can volatilize fluorinated gas in melting process, causes environmental pollution.Therefore F
-content be defined as 1 ~ 10%, be preferably 1.5 ~ 7%.
Sb
3+with Sb
2o
3form introduce, in the present invention as finings use, its content is 0 ~ 1%.Cl
-with BaCl
2form introduce, also can be used as in the present invention finings use, its content is 0 ~ 1%.
It should be noted, not containing iron and vanadium in instant component, but inevitably introduce with the form of impurity, can try one's best in process of production to reduce and even not introduce.
The present invention is designed by specific components, and the characteristic of the chemical stability aspect of glass is as follows: water-fast effect stability D
w1 grade can be reached; Acidproof effect stability D
areach more than 3 grades, be preferably 2 grades.
Above-mentioned water-fast effect stability D
w(powder method), by the testing method of GB/T17129, calculates according to following formula:
D
W=（B-C）/（B-A）*100
In formula: D
w-glass leaches percentage ratio (%)
The quality (g) of B-strainer and sample
The quality (g) of C-strainer and the rear sample of erosion
A-filter quality (g)
By the leaching percentage ratio calculated, D is stablized in water-fast for opticglass effect
w6 grades are divided into see the following form.
| Classification | 1 | 2 | 3 | 4 | 5 | 6 |
| Leach percentage ratio (D W） | ＜0.04 | 0.04-0.10 | 0.10-0.25 | 0.25-0.60 | 0.60-1.10 | ＞1.10 |
Above-mentioned acidproof effect stability D
a(powder method), by the testing method of GB/T17129, calculates according to following formula:
D
A=（B-C）/（B-A）*100
In formula: D
a-glass leaches percentage ratio (%)
The quality (g) of B-strainer and sample
The quality (g) of C-strainer and the rear sample of erosion
A-filter quality (g)
By the leaching percentage ratio calculated, D is stablized in acidproof for opticglass effect
a6 grades are divided into see the following form.
| Classification | 1 | 2 | 3 | 4 | 5 | 6 |
| Leach percentage ratio (D A） | ＜0.20 | 0.20-0.35 | 0.35-0.65 | 0.65-1.20 | 1.20-2.20 | ＞2.20 |
The preferred light transmission rate of glass of the present invention is as follows:
When thickness of glass is 0.45mm, the characteristic shown below the spectral transmittance in the wavelength region of 400 to 1200nm has.
Be more than or equal to 80% at the spectral transmittance of the wavelength of 400nm, preferably greater than or equal to 85%, more preferably greater than or equal 87%.
Be more than or equal to 85% at the spectral transmittance of the wavelength of 500nm, preferably greater than or equal to 87%, more preferably greater than or equal 90%.
Be more than or equal to 55% at the spectral transmittance of the wavelength of 600nm, preferably greater than or equal to 57%, more preferably greater than or equal 59%.
Be less than or equal to 9% at the spectral transmittance of the wavelength of 700nm, be preferably less than or equal to 8%, be more preferably less than or equal 7%.
Be less than or equal to 2% at the spectral transmittance of the wavelength of 800nm, be preferably less than or equal to 1.5%, be more preferably less than or equal 0.8%.
Be less than or equal to 3% at the spectral transmittance of the wavelength of 900nm, be preferably less than or equal to 2%, be more preferably less than or equal 1%.
Be less than or equal to 5% at the spectral transmittance of the wavelength of 1000nm, be preferably less than or equal to 4%, be more preferably less than or equal 2.5%.
Be less than or equal to 10% at the spectral transmittance of the wavelength of 1100nm, be preferably less than or equal to 8%, be more preferably less than or equal 6%.
Be less than or equal to 15% at the spectral transmittance of the wavelength of 1200nm, be preferably less than or equal to 13%, be more preferably less than or equal 12%.
As can be seen here, the absorption in the near infrared region wavelength region of 700nm to 1200nm is large, and the absorption in the visible region wavelength region of 400nm to 600nm is little.
In spectral transmittance in the wavelength region of 500 to 700nm, wavelength (λ corresponding when transmitance is 50%
50corresponding wavelength value) scope is 613 ± 10nm.
The transmitance of glass of the present invention refers to the value obtained in this way by spectrophotometer: assuming that glass sample has parallel to each other and two of optical polish planes, light is from vertical incidence a parallel planes, from the outgoing of another one parallel planes, the intensity of this emergent light is exactly transmitance divided by the intensity of incident light, and this transmitance is also referred to as outer transmitance.
The above-mentioned characteristic of glass of the present invention, can realize the color correction of semi-conductor image-forming component as CCD or CMOS admirably.
Involved in the present invention to near-infrared absorption element be made up of described near-infrared absorption glass, may be used for the laminal glass elements or lens etc. in near-infrared absorption spectral filter, be applicable to the colour correction purposes of solid-state imager, possess good optical transmittance property and chemical stability.
Near infrared filter device involved in the present invention is that the near-infrared absorption element be made up of near-infrared absorption glass is formed, so also have good optical transmittance property and chemical stability.
Embodiment
In following content, embodiment listed in table will describe the present invention in more detail, and be the use that others skilled in the art are for referencial use, it should be noted, protection scope of the present invention is not limited to described embodiment.
The present invention is using metaphosphate, fluorochemical, oxide compound and carbonate etc. as raw material, and the raw material in the present invention is not introduced with the form of nitrate, effectively can improve the chemical stability of glass like this.Weighed and made it have the glass of the composition shown in following table 1 ~ 2, completely after mixing, mixing raw material is dropped in glass melting equipment; heating and melting at a certain temperature; clarify and while adopting oxygen to protect after homogenizing, by glass ware forming, obtain Nearinfrared-ray absorbing galss of the present invention.
Table 1
Table 2
Above-mentioned glass processing is become tabular, and two sides respect to one another is carried out optical polish with the sample for the preparation of measurement transmitance, use spectral transmission instrument to measure the spectral transmittance of each sample, obtain the transmitance of the typical wavelengths of each sample of 0.45mm thickness.
When to show described glass in table 3 ~ 4 be 0.45mm thickness, the transmitance value of glass of the present invention, can confirm that described glass all has the excellent properties correcting glass as the colour sensitivity for semi-conductor image-forming component.
Table 3
Table 4
As can be seen from the above table, when thickness of glass is 0.45mm, the display of wavelength 1200nm transmitance is less than 15%; Absorption in the near infrared region wavelength region of 700nm to 1200nm is large, and the absorption in the visible region wavelength region of 400nm to 600nm is little.Fig. 1 is the spectral curve of above-described embodiment 20, as can be seen from the figure, in the spectral transmittance in the wavelength region of 500 to 700nm, and wavelength (λ corresponding when transmitance is 50%
50corresponding wavelength value) scope is 613 ± 10nm.
Claims (20)
1. near-infrared absorption glass, is characterized in that: composition contains the P of 15 ~ 30% by weight percentage
5+, 1 ~ 8% Al
3+, 5 ~ 20% Ba
2+, 3 ~ 12% Na
+, 1 ~ 10% Zn
2+, 0 ~ 5% Mg
2+, 0 ~ 5% Ca
2+, 0 ~ 5% Sr
2+, 0.1 ~ 8% Cu
2+, 0 ~ 3% Si
4+, 1 ~ 10% F
-and the O of 30 ~ 50%
2-.
2. near-infrared absorption glass as claimed in claim 1, is characterized in that: also contain the Sb of 0 ~ 1%
3+or/and the Cl of 0 ~ 1%
-.
3. near-infrared absorption glass as claimed in claim 1, is characterized in that: consist of by weight percentage: the P of 15 ~ 30%
5+, 1 ~ 8% Al
3+, 5 ~ 20% Ba
2+, 3 ~ 12% Na
+, 1 ~ 10% Zn
2+, 0 ~ 5% Mg
2+, 0 ~ 5% Ca
2+, 0 ~ 5% Sr
2+, 0.1 ~ 8% Cu
2+, 0 ~ 3% Si
4+, 1 ~ 10% F
-, 30 ~ 50% O
2-, and the Sb of 0 ~ 1%
3+or/and the Cl of 0 ~ 1%
-.
4. the near-infrared absorption glass as described in claim as arbitrary in claims 1 to 3, is characterized in that: containing the P of 20 ~ 27%
5+.
5. the near-infrared absorption glass as described in claim as arbitrary in claims 1 to 3, is characterized in that: containing the Al of 1 ~ 4.9%
3+.
6. the near-infrared absorption glass as described in claim as arbitrary in claims 1 to 3, is characterized in that: containing the Ba of 6 ~ 15%
2+.
7. the near-infrared absorption glass as described in claim as arbitrary in claims 1 to 3, is characterized in that: containing the Na of 5 ~ 10%
+.
8. the near-infrared absorption glass as described in claim as arbitrary in claims 1 to 3, is characterized in that: containing the Zn of 2 ~ 6%
2+.
9. the near-infrared absorption glass as described in claim as arbitrary in claims 1 to 3, is characterized in that: containing the Mg of 0.5 ~ 3%
2+.
10. the near-infrared absorption glass as described in claim as arbitrary in claims 1 to 3, is characterized in that: containing the Ca of 0.5 ~ 3%
2+.
Near-infrared absorption glass as described in 11. claims as arbitrary in claims 1 to 3, is characterized in that: containing the Sr of 0.5 ~ 3%
2+.
Near-infrared absorption glass as described in 12. claims as arbitrary in claims 1 to 3, is characterized in that: containing the Cu of 0.5 ~ 5%
2+.
Near-infrared absorption glass as described in 13. claims as arbitrary in claims 1 to 3, is characterized in that: containing the Cu of 1 ~ 3.5%
2+.
Near-infrared absorption glass as described in 14. claims as arbitrary in claims 1 to 3, is characterized in that: containing the Sr of 0 ~ 1%
4+.
Near-infrared absorption glass as described in 15. claims as arbitrary in claims 1 to 3, is characterized in that: containing the F of 1.5 ~ 7%
-.
Near-infrared absorption glass as described in 16. claims as arbitrary in claims 1 to 3, is characterized in that: containing the O of 35 ~ 44%
2-.
Near-infrared absorption glass as described in 17. claims as arbitrary in claim 1 ~ 16, is characterized in that: the acidproof effect stability D of glass
amore than 3 grades.
Near-infrared absorption glass as described in 18. claims as arbitrary in claim 1 ~ 16, is characterized in that: when described near-infrared absorption thickness of glass is 0.45mm, is less than 15% in the display of wavelength 1200nm transmitance.
19. near-infrared absorption elements, is characterized in that, are made up of the near-infrared absorption glass described in claim arbitrary in claim 1 ~ 18.
20. near-infrared absorption spectral filters, is characterized in that, are made up of the near-infrared absorption glass described in claim arbitrary in claim 1 ~ 18.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310337002.5A CN104341105B (en) | 2013-08-05 | 2013-08-05 | Near-infrared light absorbing glass, element and light filter |
| TW103126320A TWI522331B (en) | 2013-08-05 | 2014-08-01 | Near infrared light absorption glass, components and filters |
| JP2014159660A JP5972321B2 (en) | 2013-08-05 | 2014-08-05 | Near infrared light absorbing glass, near infrared light absorbing element, and near infrared light absorbing optical filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310337002.5A CN104341105B (en) | 2013-08-05 | 2013-08-05 | Near-infrared light absorbing glass, element and light filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104341105A true CN104341105A (en) | 2015-02-11 |
| CN104341105B CN104341105B (en) | 2017-04-19 |
Family
ID=52497640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310337002.5A Active CN104341105B (en) | 2013-08-05 | 2013-08-05 | Near-infrared light absorbing glass, element and light filter |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5972321B2 (en) |
| CN (1) | CN104341105B (en) |
| TW (1) | TWI522331B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109160728A (en) * | 2018-09-28 | 2019-01-08 | 成都光明光电股份有限公司 | Fluorophosphate optical glass, optical precast product, element and instrument |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6962322B2 (en) * | 2016-07-29 | 2021-11-05 | Ａｇｃ株式会社 | Near infrared cut filter glass |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011121792A (en) * | 2009-12-08 | 2011-06-23 | Asahi Glass Co Ltd | Near infrared ray cutting filter glass |
| CN102923948A (en) * | 2012-04-11 | 2013-02-13 | 成都光明光电股份有限公司 | Near infrared light absorption glass, component, and light filter |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4169545B2 (en) * | 2002-07-05 | 2008-10-22 | Ｈｏｙａ株式会社 | Near-infrared light absorbing glass, near-infrared light absorbing element, near-infrared light absorbing filter, and method for producing near-infrared light absorbing glass molded body |
| JP4652941B2 (en) * | 2005-09-30 | 2011-03-16 | Ｈｏｙａ株式会社 | Lens and manufacturing method thereof |
| JP2009263190A (en) * | 2008-04-29 | 2009-11-12 | Ohara Inc | Infrared absorption glass |
| JP2011093757A (en) * | 2009-10-30 | 2011-05-12 | Hoya Corp | Fluorophosphate glass, near infrared ray absorbing filter, optical element, and glass window for semiconductor image sensor |
| JP5672300B2 (en) * | 2010-03-26 | 2015-02-18 | 旭硝子株式会社 | Manufacturing method of near infrared cut filter glass |
| WO2012018026A1 (en) * | 2010-08-03 | 2012-02-09 | 旭硝子株式会社 | Near-infrared cut filter glass and process for manufacturing same |
| TWI555717B (en) * | 2010-12-23 | 2016-11-01 | 史考特公司 | Fluorophosphate glasses |
| JP5296110B2 (en) * | 2011-01-21 | 2013-09-25 | 株式会社オハラ | Optical glass, preform and optical element |
| JP5801773B2 (en) * | 2011-08-11 | 2015-10-28 | Hoya株式会社 | Fluorophosphate glass, method for producing the same, and near infrared light absorption filter |
| DE102011084501B3 (en) * | 2011-10-14 | 2013-03-21 | Schott Ag | X-ray opaque barium-free glass and its use |
-
2013
- 2013-08-05 CN CN201310337002.5A patent/CN104341105B/en active Active
-
2014
- 2014-08-01 TW TW103126320A patent/TWI522331B/en active
- 2014-08-05 JP JP2014159660A patent/JP5972321B2/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011121792A (en) * | 2009-12-08 | 2011-06-23 | Asahi Glass Co Ltd | Near infrared ray cutting filter glass |
| CN102923948A (en) * | 2012-04-11 | 2013-02-13 | 成都光明光电股份有限公司 | Near infrared light absorption glass, component, and light filter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109160728A (en) * | 2018-09-28 | 2019-01-08 | 成都光明光电股份有限公司 | Fluorophosphate optical glass, optical precast product, element and instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI522331B (en) | 2016-02-21 |
| JP2015030665A (en) | 2015-02-16 |
| TW201505996A (en) | 2015-02-16 |
| JP5972321B2 (en) | 2016-08-17 |
| CN104341105B (en) | 2017-04-19 |
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