CN117602831A - Light absorbing material glass for high-definition ultrashort image inverter and preparation method thereof - Google Patents

Light absorbing material glass for high-definition ultrashort image inverter and preparation method thereof Download PDF

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Publication number
CN117602831A
CN117602831A CN202311579603.7A CN202311579603A CN117602831A CN 117602831 A CN117602831 A CN 117602831A CN 202311579603 A CN202311579603 A CN 202311579603A CN 117602831 A CN117602831 A CN 117602831A
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glass
oxide
carbonate
light absorbing
raw material
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石钰
贾金升
张弦
张磊
王久旺
赵越
汤晓峰
付杨
于浩洋
樊志恒
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China Building Materials Academy CBMA
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China Building Materials Academy CBMA
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    • 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
    • C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C03B19/02—Other methods of shaping glass by casting molten glass, e.g. injection moulding
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/04—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
    • G02B6/06—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres the relative position of the fibres being the same at both ends, e.g. for transporting images

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Glass Compositions (AREA)

Abstract

The invention discloses a light absorbing material glass for a high-definition ultrashort image inverter and a preparation method thereof, wherein the light absorbing material glass comprises the following components in percentage by weight: 40-50% of quartz sand, 6-12% of boric acid, 7-15% of aluminum oxide, 1-10% of sodium carbonate, 1-10% of potassium carbonate, 0-2% of lithium carbonate, 0-3% of basic magnesium carbonate, 0-5% of calcium carbonate, 1-3% of barium nitrate, 0-3% of zirconium oxide, 1-3% of copper oxide, 3-6% of potassium permanganate, 0.2-1% of potassium chromate, 1-5% of ferric oxide, 1-6% of cobaltous oxide, 1-6% of nickel oxide, 1-6% of vanadium pentoxide and 0-1% of cerium oxide. The light absorbing material glass is used for preparing the ultra-short image inverter, and can effectively improve the transmittance and resolution of the ultra-short image inverter.

Description

Light absorbing material glass for high-definition ultrashort image inverter and preparation method thereof
Technical Field
The invention relates to the field of optical fiber image transmission element manufacturing, in particular to light absorption material glass for a high-definition ultrashort image inverter and a preparation method thereof.
Background
The optical fiber image transmission element is an optical fiber element formed by fusing hundreds of thousands of optical fibers through hot pressing, and comprises an optical fiber panel, an optical fiber image inverter, an optical fiber light cone, an optical fiber image transmission beam and the like.
The optical fiber image inverter is prepared by adopting a low-refractive-index cladding glass tube and a high-refractive-index core glass rod, drawing monofilaments by utilizing a rod tube in combination, drawing the absorbing material glass into filaments, inserting the filaments into the monofilaments with good plate arrangement, absorbing the stray light by the main effect of the absorbing material glass, bundling the filaments into a primary composite rod, drawing, plate arrangement and hot-melting and pressing to form blank plate sections, and rotating the blank plate sections at a high temperature of 180 degrees. The optical fiber image inverter is a key core element and is mainly applied to an image intensifier of a microscopic night vision device to realize optical image inversion. The application of the optical fiber image inverting device effectively shortens the size of the image intensifier, reduces the field distortion and the virtual focus defect of the original relay lens image inverting system, improves the imaging definition and the resolution, and is one of core devices of the low-light-level image intensifier.
The optical fiber image inverter is formed by twisting an optical fiber plate blank at a high temperature by 180 degrees, and the twisted optical fiber structure is changed to different degrees. Theoretically, only the optical fiber at the axial center is not twisted and drawn, and the remaining optical fibers are twisted and drawn into a biconical optical fiber coiled 180 ° at different helix angles. This process reduces the resolution of the peripheral area of the conventional image inverter, and in severe cases, reduces the viewing field of the image tube. The twisting degree is increased along with the increase of the distance from the fiber to the center of the slab in the twisting process, the length and the tapering degree of the fiber are increased gradually, the numerical aperture of the fiber is reduced gradually, the luminous flux and the light sweep angle of the fiber are reduced accordingly, so that the total reflection of the interface of the core and the sheath is subjected to different losses, the light-passing distance between the fibers is increased accordingly, and the numerical aperture, the luminous flux and the contrast of the fiber image inverter are reduced gradually. In addition, in the thermal torsion process, black wires in the slab can induce coloring ions to diffuse, so that light leakage is increased, even diffusion and penetration into the fiber core are realized, and light absorption is seriously increased. And the fiber is stretched after being heated and twisted to enable the thickness of the cortex to be reduced, particularly the thickness of the cortex in the edge area to be larger, so that light leakage is aggravated, the total reflection loss is aggravated, and the transmissivity and resolution of the image inverter are reduced. The requirements of the high-definition ultrashort image inverter are more strict, the width of the torsion region is narrowed, meanwhile, the high-definition imaging of the image inverter is ensured, the difficulty is increased, the development difficulty of the image inverter with smaller height is increased, the technical difficulties are increased, the torsion forming distortion width is narrowed, the wire diameter deformation is large, and therefore the indexes such as the resolution, the transmittance and the like of the image inverter are reduced.
In order to solve the above problems, the light absorbing glass fiber is inserted into the gaps between the aligned optical fibers, so as to absorb light, light leakage and the like, and the key is the problem of the light absorbing glass material, which requires not only high absorption efficiency of the light absorbing material, but also low diffusion degree during high temperature torsion, i.e. sufficient viscosity of the absorbing glass material, so as to manufacture an excellent high-definition ultrashort image inverter. At present, light absorbing material glass for an optical fiber image inverter and a preparation method thereof are available, but the existing light absorbing glass material cannot meet the requirement of an ultra-short image inverter with higher quality requirements, and the ultra-short image inverter with higher quality requirements prepared from the light absorbing material glass in the prior art cannot meet the requirement of high imaging definition.
Disclosure of Invention
The invention aims at solving the problems in the prior art and provides light absorbing material glass capable of effectively improving the transmittance and resolution of an ultra-short image inverter and a preparation method thereof.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a composition of light absorbing frit glass for a high definition ultrashort image inverter comprising the following components in weight percent:
40-50% of quartz sand, 6-12% of boric acid, 7-15% of aluminum oxide, 1-10% of sodium carbonate, 1-10% of potassium carbonate, 0-2% of lithium carbonate, 0-3% of basic magnesium carbonate, 0-5% of calcium carbonate, 1-3% of barium nitrate, 0-3% of zirconium oxide, 1-3% of copper oxide, 3-6% of potassium permanganate, 0.2-1% of potassium chromate, 1-5% of ferric oxide, 1-6% of cobaltous oxide, 1-6% of nickel oxide, 1-6% of vanadium pentoxide and 0-1% of cerium oxide.
The invention also provides a preferable technical scheme, and a composition of light absorbing material glass for a high-definition ultrashort image inverter comprises the following components in percentage by weight:
41-50% of quartz sand, 7-11% of boric acid, 7.4-15% of aluminum oxide, 2-10% of sodium carbonate, 2-8% of potassium carbonate, 0.5-1.5% of lithium carbonate, 0.5-2.5% of basic magnesium carbonate, 0.5-5% of calcium carbonate, 1-2% of barium nitrate, 0.5-3% of zirconium oxide, 1-2.5% of copper oxide, 3.5-6% of potassium permanganate, 0.2-1% of potassium chromate, 1-3% of ferric oxide, 1-3% of cobalt oxide, 1-4% of nickel oxide, 1-3.5% of vanadium pentoxide and 0.5-1% of cerium oxide.
The invention also provides a more preferable technical scheme, and the composition of the light absorbing material glass for the high-definition ultrashort image inverter comprises the following components in percentage by weight:
45% of quartz sand, 9% of boric acid, 7.4% of aluminum oxide, 5% of sodium carbonate, 5% of potassium carbonate, 1% of lithium carbonate, 1.5% of basic magnesium carbonate, 2.5% of calcium carbonate, 2% of barium nitrate, 1.5% of zirconium oxide, 2% of copper oxide, 4% of potassium permanganate, 0.6% of potassium chromate, 3% of ferric oxide, 3% of cobaltous oxide, 3.5% of nickel oxide, 3.5% of vanadium pentoxide and 0.5% of cerium oxide.
The present invention also provides a method for preparing light absorbing glass for a high definition ultrashort image inverter using the composition, comprising the steps of:
(1) The preparation method comprises the following steps: weighing quartz sand, boric acid, aluminum oxide, sodium carbonate, potassium carbonate, lithium carbonate, basic magnesium carbonate, calcium carbonate, barium nitrate, zirconium oxide, copper oxide, potassium permanganate, potassium chromate, ferric oxide, cobalt oxide, nickel oxide, vanadium pentoxide and cerium oxide according to the weight ratio, and uniformly mixing to obtain a raw material mixture;
(2) Melting glass: adding one fifth of the raw material mixture into a crucible, melting the raw material mixture at 1420-1520 ℃ and adding one fifth of the raw material mixture every half an hour until the raw material mixture is melted for 5-8 hours after being added, clarifying and stirring the raw material mixture for 2-3 hours at the temperature of 1520-1600 ℃ after the raw material mixture is melted, discharging molten and clarified glass liquid at the temperature of 1460-1480 ℃, casting the glass into required glass in a mould, and annealing the glass after the glass is cooled and solidified to obtain the light absorbing material glass for the high-definition ultra-short image inverter.
The annealing temperature is 520-550 ℃, and the heat preservation time is 2-3 hours.
The invention also provides light absorbing material glass for the high-definition ultrashort image inverter, which is prepared according to the method.
The spectral transmittance of the light absorbing material glass in the wavelength range of 400-700nm is less than or equal to 3% at the thickness of 0.40+/-0.01 mm; no crystallization occurred when the temperature was kept at 820℃for 2 hours.
The invention further provides application of the light absorbing material glass to an ultra-short image inverter.
The light absorbing material glass of the invention is used for preparing the ultra-short image inverter, the transmittance and the resolution ratio of the ultra-short image inverter can be effectively improved, and the transmittance of the ultra-short image inverter is more than 70% and the resolution ratio is more than 140lp/mm after statistical calculation. The components with lower transmittance, higher absorption efficiency and low high-temperature diffusion degree are prepared by adjusting the formula of the light absorbing material glass, so that the transmittance and resolution of the ultra-short image inverter can be further improved, and the product performance is improved.
In the invention, quartz sandIs glass forming oxide SiO 2 Raw material of (1) SiO 2 Is an important component in the glass skeleton and is a component for improving chemical resistance. The weight percentage (wt.%) of quartz sand is 40-50. The quartz sand content is lower than 40wt.%, so that the glass with matched expansion coefficients is not easy to obtain, and the chemical stability of the glass is reduced; when the content of quartz sand is higher than 50wt.%, the high-temperature viscosity of the glass increases, resulting in an excessively high glass melting temperature and an increased probability of glass phase separation.
Boric acid is glass forming oxide B 2 O 3 Raw materials of B 2 O 3 Is also a main component of the glass skeleton and is a cosolvent for reducing glass melting viscosity. The weight percentage (wt.%) of boric acid is 6-12, the content of boric acid is lower than 6wt.%, the auxiliary dissolution effect can not be achieved, and meanwhile, the chemical stability of the glass can be reduced; the boric acid content of more than 12wt.% increases the phase separation tendency of the glass.
Alumina is intermediate oxide Al of glass 2 O 3 The weight percentage (wt.%) of alumina is 7-15, when the content of alumina is less than 7wt.%, brittleness of the glass is increased; when the alumina content is higher than 15wt.%, the high-temperature viscosity of the glass is increased, resulting in an excessively high glass melting temperature and a decrease in crystallization property of the glass.
Sodium carbonate is alkali metal oxide Na 2 Raw material of O, na 2 O is an external oxide of a glass structure network, the weight percentage (wt%) of sodium carbonate is 1-10%, and the content of sodium carbonate is more than 10 wt%, so that the thermal expansion coefficient of the glass is increased, and the crystallization tendency of the glass is increased.
Potassium carbonate is an alkali metal oxide K 2 O as main raw material, K 2 O is the network external oxide of the glass structure, the weight percentage (wt%) content of potassium carbonate is 1-10, the content of potassium carbonate is less than 1 wt%, the effect of adjusting the high-temperature melting viscosity of the glass cannot be achieved, the content of potassium carbonate is more than 10 wt%, the thermal expansion coefficient of the glass can be increased, and the crystallization tendency of the glass is increased.
Lithium carbonate is an alkali metal oxide Li 2 O raw material, li 2 O isThe glass structure network external oxide has the weight percentage (wt.%) of 0-2, and mainly plays a role in reducing glass melting viscosity, and the content of lithium carbonate is more than 2wt.%, so that the crystallization tendency of the glass can be increased.
The basic magnesium carbonate is a raw material of MgO which is an external oxide of a glass structure network, and when the weight percentage (wt%) of the basic magnesium carbonate is 0-3 and the content of the basic magnesium carbonate is more than 3 wt%, the chemical stability of the glass can be reduced, and the thermal expansion coefficient of the glass can be increased.
Calcium carbonate is a raw material of glass structure network exosome oxide CaO, the weight percent (wt.%) of the calcium carbonate is 0-5, and when the content of the calcium carbonate is more than 5wt.%, the chemical stability of the glass can be reduced, and the thermal expansion coefficient of the glass can be increased.
The barium nitrate is a raw material of the network exosome oxide BaO of the glass structure, can effectively reduce the melting temperature of the glass, improve the glass resistance, has the weight percentage (wt.%) of 1-3, has the content of more than 3wt.%, and increases the crystallization tendency of the glass.
Zirconia is ZrO 2 Is a suitable ZrO for adjusting the density and high-temperature viscosity of glass 2 Is beneficial to clarifying glass liquid and eliminating stripes in the glass melting process. The weight percentage (wt.%) of zirconia is 0-3, zrO 2 The amount of (2) greater than 3wt.% increases the coefficient of thermal expansion of the glass.
Copper oxide is a raw material of CuO, a colorant of light absorbing glass, and can be combined with Ni 2+ 、Co 3+ 、Mn 2+ And the like are combined to form stable coloring in the glass, the composite absorption effect is utilized, the stray light in the wavelength range of 400nm-700nm can be absorbed, a better light absorption effect is obtained, an obvious transmission peak does not appear in a visible light region of a light absorption curve, the weight percentage (wt%) of copper oxide is 1-3, but the content of copper oxide is more than 3 wt%, and the crystallization tendency of the glass can be increased.
Potassium permanganate is colorant MnO of light absorbing glass 2 In the present invention, potassium permanganate is the main light absorber, mn ions have stable light absorption capacity between 400 and 700nm, and can be used in glassStable coloring is formed in the glass, the weight percentage (wt.%) of potassium permanganate is 3-6, and the content of potassium permanganate is greater than 6wt.%, so that the chemical stability of the glass can be reduced, and the crystallization tendency of the glass can be increased.
Potassium chromate as colorant Cr of light absorbing glass 2 O 3 The weight percentage (wt.%) of potassium chromate is 0.2-1.0, and the content of potassium chromate is more than 1.0wt.%, which can reduce the chemical resistance of glass and increase the crystallization tendency.
Ferric oxide is a colorant Fe of light absorbing glass 2 O 3 The weight percentage (wt.%) of ferric oxide is 1-5, and the content of ferric oxide is more than 5wt.%, so that the chemical resistance of glass can be reduced, and the crystallization tendency can be increased.
Cobalt sesquioxide is the colorant Co of light absorbing glass 2 O 3 1-6 weight percent (wt.%) of cobalt oxide, co 2 O 3 Can be combined with other coloring ions to form a stable form in the glass, so that the light absorbing material is more stable in coloring. When the content of the cobaltous oxide is more than 6.0wt.%, chemical resistance of the glass is lowered and crystallization tendency of the glass is increased.
Nickel oxide is the raw material of NiO as a colorant of the light absorbing glass, the weight percentage (wt.%) of the nickel oxide is 1-6, and Ni 2+ The glass has good absorption effect in the visible light region, the content of nickel oxide is more than 6.0wt.%, the chemical resistance and the chemical stability of the glass can be reduced, and the crystallization tendency of the glass is increased.
Vanadium pentoxide is the colorant V of the light absorbing glass 2 O 5 The weight percentage (wt.%) of the vanadium pentoxide is 1-6, and the vanadium pentoxide can solidify manganese ion coloring, so that the coloring of the light absorbing material is more stable. When the content of vanadium pentoxide is more than 6.0wt.%, the chemical resistance of the glass is lowered, and the crystallization tendency of the glass is increased.
Cerium oxide is rare earth oxide, mainly adjusts crystallization property of glass and plays a role of glass clarifier, and is CeO 2 The weight percentage (wt.%) of cerium oxide is 0-1, and when the content of cerium oxide is more than 1wt.%, the content is increasedGlass has a tendency to devitrify.
Compared with the prior art, the light absorbing material glass for the high-definition ultrashort image inverter and the preparation method thereof have the following beneficial effects:
(1) The preparation method has low cost, and can effectively improve the definition of the ultra-short image inverter product;
(2) The spectral transmittance of the light absorbing material glass in the wavelength range of 400-700nm is less than or equal to 3% at the thickness of 0.40+/-0.01 mm;
(3) The light absorbing material glass has the advantages of no crystallization after heat preservation at 820 ℃ for 2 hours, good crystallization resistance, good moisture resistance and good chemical stability;
(3) The light absorbing material glass prepared by the invention has the advantages of no stones, no bubbles and the like in the glass after melting, and the thermal property meets the preparation process requirements of the optical fiber imaging element;
(4) The light absorbing material glass is applied to an ultra-short image inverter, and can improve the transmittance and resolution of imaging.
Detailed Description
The following describes embodiments of the present invention in further detail, but is not intended to limit the invention, in order to make the objects, technical solutions and advantages of the present invention more apparent.
Table 1 is the chemical composition (wt.%) and properties of the light absorbing glass examples
Example 1
The raw materials were selected according to the glass composition of example 1 of table 1 so that the formulation thereof satisfied the glass chemical composition of table 1, and then a light absorbing glass was prepared according to the following steps:
(1) Adding one fifth of the raw material mixture into a crucible, melting at 1470 ℃, adding one fifth of the raw material mixture every half an hour, melting for 7 hours after the raw material mixture is added, clarifying and stirring for 2 hours at the temperature of 1560 ℃ after the raw material mixture is melted, discharging molten and clarified glass liquid at 1470 ℃, and casting into required glass in a mould;
(2) And (3) annealing after the glass is cooled and solidified, wherein the annealing temperature is 530 ℃, and the heat preservation time is 3 hours, so that the absorbing material glass for the high-definition ultrashort image inverter can be obtained.
The glass sheet (thickness: 0.40.+ -. 0.01 mm) produced from the raw material of example 1 was tested to have a spectral transmittance of 2.0% in the wavelength range of 400 to 700nm, and was kept at 820 ℃ for 2 hours without crystallization.
Example 2
The raw materials were selected according to the glass composition of example 2 of table 1 so that the formulation thereof satisfied the glass chemical composition of table 1, and then a light absorbing glass was prepared according to the following steps:
(1) Adding one fifth of the raw material mixture into a crucible, melting at 1420 ℃ and adding one fifth of the raw material mixture every half an hour until the raw material mixture is melted for 8 hours after being added, clarifying and stirring for 3 hours at 1600 ℃ after the raw material mixture is melted, discharging molten and clarified glass liquid at 1460 ℃, and casting into required glass in a mould;
(2) And (3) annealing after the glass is cooled and solidified, wherein the annealing temperature is 520 ℃, and the heat preservation time is 3 hours, so that the absorbing material glass for the high-definition ultrashort image inverter can be obtained.
The glass sheet (thickness: 0.40.+ -. 0.01 mm) produced from the raw material of example 2 was tested to have a spectral transmittance of 2.5% in the wavelength range of 400 to 700nm, and was kept at 820 ℃ for 2 hours without crystallization.
Example 3
The raw materials were selected according to the glass composition of example 3 of table 1 so that the formulation thereof satisfied the glass chemical composition of table 1, and then a light absorbing glass was prepared according to the following steps:
(1) Adding one fifth of the raw material mixture into a crucible, melting at 1520 ℃, adding one fifth of the raw material mixture every half an hour, melting for 5 hours after the raw material mixture is added, clarifying and stirring for 2 hours at 1520 ℃ after the raw material mixture is melted, discharging molten and clarified glass liquid at 1480 ℃, and casting into required glass in a mould;
(2) And (3) annealing after the glass is cooled and solidified, wherein the annealing temperature is 550 ℃, and the heat preservation time is 2 hours, so that the absorbing material glass for the high-definition ultrashort image inverter can be obtained.
The glass sheet (thickness: 0.40.+ -. 0.01 mm) produced from the raw material of example 3 was tested to have a spectral transmittance of 3.0% in the wavelength range of 400 to 700nm, and was kept at 820 ℃ for 2 hours without crystallization.
Example 4
The raw materials were selected according to the glass composition of example 4 of table 1 so that the formulation thereof satisfied the glass chemical composition of table 1, and then a light absorbing glass was prepared according to the following steps:
(1) Adding one fifth of the raw material mixture into a crucible, melting at 1510 ℃, adding one fifth of the raw material mixture every half an hour, melting for 6 hours after the raw material mixture is added, clarifying and stirring for 2 hours at 1550 ℃ after the raw material mixture is melted, discharging molten and clarified glass liquid at 1460 ℃, and casting into required glass in a mould;
(2) And (3) annealing after the glass is cooled and solidified, wherein the annealing temperature is 530 ℃, and the heat preservation time is 2 hours, so that the absorbing material glass for the high-definition ultrashort image inverter can be obtained.
The glass sheet (thickness: 0.40.+ -. 0.01 mm) produced from the raw material of example 4 was tested to have a spectral transmittance of 2.2% in the wavelength range of 400 to 700nm, and was kept at 820 ℃ for 2 hours without crystallization.
Example 5
The raw materials were selected according to the glass composition of example 5 of table 1 so that the formulation thereof satisfied the glass chemical composition of table 1, and then a light absorbing glass was prepared according to the following steps:
(1) Adding one fifth of the raw material mixture into a crucible, melting at 1500 ℃, adding one fifth of the raw material mixture every half an hour, melting for 8 hours after the raw material mixture is added, clarifying and stirring for 2 hours at the temperature of 1580 ℃ after the raw material mixture is melted, discharging molten and clarified glass liquid at 1470 ℃, and casting into required glass in a mould;
(2) And (3) annealing after the glass is cooled and solidified, wherein the annealing temperature is 540 ℃, and the heat preservation time is 3 hours, so that the absorbing material glass for the high-definition ultrashort image inverter can be obtained.
The glass sheet (thickness: 0.40.+ -. 0.01 mm) produced from the raw material of example 5 was tested to have a spectral transmittance of 2.3% in the wavelength range of 400 to 700nm, and was kept at 820 ℃ for 2 hours without crystallization.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims (8)

1. A composition of light absorbing glass for a high definition ultrashort image inverter, comprising the following components in weight percent:
40-50% of quartz sand, 6-12% of boric acid, 7-15% of aluminum oxide, 1-10% of sodium carbonate, 1-10% of potassium carbonate, 0-2% of lithium carbonate, 0-3% of basic magnesium carbonate, 0-5% of calcium carbonate, 1-3% of barium nitrate, 0-3% of zirconium oxide, 1-3% of copper oxide, 3-6% of potassium permanganate, 0.2-1% of potassium chromate, 1-5% of ferric oxide, 1-6% of cobaltous oxide, 1-6% of nickel oxide, 1-6% of vanadium pentoxide and 0-1% of cerium oxide.
2. The composition according to claim 1, characterized by comprising the following components in weight percentage:
41-50% of quartz sand, 7-11% of boric acid, 7.4-15% of aluminum oxide, 2-10% of sodium carbonate, 2-8% of potassium carbonate, 0.5-1.5% of lithium carbonate, 0.5-2.5% of basic magnesium carbonate, 0.5-5% of calcium carbonate, 1-2% of barium nitrate, 0.5-3% of zirconium oxide, 1-2.5% of copper oxide, 3.5-6% of potassium permanganate, 0.2-1% of potassium chromate, 1-3% of ferric oxide, 1-3% of cobalt oxide, 1-4% of nickel oxide, 1-3.5% of vanadium pentoxide and 0.5-1% of cerium oxide.
3. The composition according to claim 2, characterized by comprising the following components in weight percentage:
45% of quartz sand, 9% of boric acid, 7.4% of aluminum oxide, 5% of sodium carbonate, 5% of potassium carbonate, 1% of lithium carbonate, 1.5% of basic magnesium carbonate, 2.5% of calcium carbonate, 2% of barium nitrate, 1.5% of zirconium oxide, 2% of copper oxide, 4% of potassium permanganate, 0.6% of potassium chromate, 3% of ferric oxide, 3% of cobaltous oxide, 3.5% of nickel oxide, 3.5% of vanadium pentoxide and 0.5% of cerium oxide.
4. A method of making a light absorbing frit glass for a high definition ultrashort image inverter using the composition of any one of claims 1 to 3, comprising the steps of:
(1) The preparation method comprises the following steps: weighing quartz sand, boric acid, aluminum oxide, sodium carbonate, potassium carbonate, lithium carbonate, basic magnesium carbonate, calcium carbonate, barium nitrate, zirconium oxide, copper oxide, potassium permanganate, potassium chromate, ferric oxide, cobalt oxide, nickel oxide, vanadium pentoxide and cerium oxide according to the weight ratio, and uniformly mixing to obtain a raw material mixture;
(2) Melting glass: adding one fifth of the raw material mixture into a crucible, melting the raw material mixture at 1420-1520 ℃ and adding one fifth of the raw material mixture every half an hour until the raw material mixture is melted for 5-8 hours after being added, clarifying and stirring the raw material mixture for 2-3 hours at the temperature of 1520-1600 ℃ after the raw material mixture is melted, discharging molten and clarified glass liquid at the temperature of 1460-1480 ℃, casting the glass into required glass in a mould, and annealing the glass after the glass is cooled and solidified to obtain the light absorbing material glass for the high-definition ultra-short image inverter.
5. The method of claim 4, wherein the annealing temperature is 520-550 ℃ and the incubation time is 2-3 hours.
6. A light absorbing frit glass for a high definition ultrashort image inverter, prepared according to the method of claim 4 or 5.
7. The light-absorbing glass for a high-definition ultra-short image inverter according to claim 6, wherein the light-absorbing glass has a spectral transmittance of 3% or less in a wavelength range of 400-700nm at a thickness of 0.40±0.01 mm; no crystallization occurred when the temperature was kept at 820℃for 2 hours.
8. Use of a light absorbing frit glass according to claim 6 or 7 in an ultra short inverter.
CN202311579603.7A 2023-11-24 2023-11-24 Light absorbing material glass for high-definition ultrashort image inverter and preparation method thereof Pending CN117602831A (en)

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