CN109715575B - Glass material and method for producing same - Google Patents
Glass material and method for producing same Download PDFInfo
- Publication number
- CN109715575B CN109715575B CN201780057494.9A CN201780057494A CN109715575B CN 109715575 B CN109715575 B CN 109715575B CN 201780057494 A CN201780057494 A CN 201780057494A CN 109715575 B CN109715575 B CN 109715575B
- Authority
- CN
- China
- Prior art keywords
- glass
- glass material
- content
- present
- less
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping 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
- C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
- C03C3/068—Glass compositions containing silica with less than 40% silica by weight containing boron containing rare earths
-
- 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
-
- 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
- C03C3/14—Silica-free oxide glass compositions containing boron
- C03C3/15—Silica-free oxide glass compositions containing boron containing rare earths
-
- 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
- C03C3/16—Silica-free oxide glass compositions containing 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
- C03C3/00—Glass compositions
- C03C3/12—Silica-free oxide glass compositions
- C03C3/16—Silica-free oxide glass compositions containing phosphorus
- C03C3/17—Silica-free oxide glass compositions containing phosphorus containing aluminium or beryllium
-
- 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
- C03C3/16—Silica-free oxide glass compositions containing phosphorus
- C03C3/19—Silica-free oxide glass compositions containing phosphorus containing boron
-
- 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
-
- 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
- C03C4/0085—Compositions for glass with special properties for UV-transmitting glass
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/09—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect
-
- 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
- C03C2203/00—Production processes
- C03C2203/10—Melting processes
Abstract
The present invention provides a glass material which can achieve both a high Faraday effect and a high light transmittance in a short wavelength range. The glass material is characterized in that: contains Pr in mol%2O3 30～50％、B2O3+P2O5 0.1～70％。
Description
Technical Field
The present invention relates to a glass material suitable for a magneto-optical element constituting a magnetic device such as an optical isolator, an optical circulator, or a magnetic sensor, a magnetic glass lens for a digital camera or the like, a material for a glass sheet for a band-pass filter, or the like, and a method for producing the same.
Background
A glass material containing terbium oxide or the like as a paramagnetic compound is known to exhibit a faraday effect, which is one of magneto-optical effects. The faraday effect refers to an effect of rotating the plane of polarization of linearly polarized light passing through a material placed in a magnetic field. Such an effect can be utilized in an optical isolator, a magnetic field sensor, and the like.
The optical rotation (rotation angle of the polarizing plane) θ caused by the faraday effect is represented by the following formula when the intensity of the magnetic field is represented by H and the length of the substance through which the polarized light passes is represented by L. In the formula, V is a Constant depending on the kind of the substance, and is called a Verdet Constant (Verdet Constant). The Verlag constant has a positive value in the case of an diamagnetic substance and a negative value in the case of a paramagnetic substance. The larger the absolute value of the wiener constant is, the larger the absolute value of the optical rotation is, and as a result, the larger the faraday effect is exhibited.
θ＝VHL
Conventionally, SiO is known as a glass material exhibiting the faraday effect2－B2O3－Al2O3－Tb2O3Glass material of the series (see patent document 1), P2O5－B2O3－Tb2O3Glass material of the series (see patent document 2) or P2O5－TbF3－RF2And (R is an alkaline earth metal) based glass material (see patent document 3).
Documents of the prior art
Patent document
Patent document 1: japanese examined patent publication No. 51-46524
Patent document 2: japanese examined patent publication No. 52-32881
Patent document 3: japanese examined patent publication (Kokoku) No. 55-42942
Disclosure of Invention
Problems to be solved by the invention
The glass material exhibits high transmittance in the visible range to infrared range (for example, 420 to 1500nm), but exhibits light absorption by terbium element itself in the short wavelength range (for example, 420nm or less). Therefore, in the short wavelength range, the light transmittance is lowered, and there is a problem that the light extraction efficiency of the magneto-optical device is poor.
In view of the above circumstances, an object of the present invention is to provide a glass material capable of satisfying both a high faraday effect and a high light transmittance in a short wavelength range.
Means for solving the problems
The present inventors have conducted extensive studies and, as a result, have found that the above problems can be solved by using a glass material having a specific composition.
That is, the glass material of the present invention is characterized by containing Pr in mol%2O3 30～50％、B2O3+P2O50.1 to 70 percent. Here, "B2O3+P2O5"means B2O3And P2O5The total amount of (A) and (B).
The glass material of the present invention is obtained by containing Pr in a large amount as described above2O3The absolute value of the Verlag constant becomes large, showing a large Faraday effect. In addition, Pr2O3Since light absorption is not substantially exhibited in a wavelength range of 420nm or less (for example, 250 to 420nm), high transmittance is exhibited in the wavelength range.
In addition, when the ultraviolet absorption edge of the glass is positioned near 400nm, Pr is2O3The absorption of (2) disappears and ultraviolet absorption of the glass itself occurs, resulting in a decrease in transmittance at 420nm or less. By containing B2O3And P2O5The present invention has been made by finding that the ultraviolet absorption edge of the glass shifts to the short wavelength side as an essential component. In addition, B2O3And P2O5Is a glass skeleton component and therefore has a property of containing Pr even in a large amount2O3And also easy vitrification. This makes it difficult to crystallize the glass material even when the diameter of the glass material is increased, and improves productivity.
The glass material of the present invention preferably further contains 0 to 50% by mol of Al2O3. Thus, vitrification becomes easier.
The glass material of the present invention preferably has a shortest wavelength of 350nm or less when the light transmittance reaches 60% at a thickness of 1 mm. Thus, the light extraction efficiency of the magneto-optical device in the short wavelength range can be improved.
The glass material of the present invention can be used as a magneto-optical element. For example, the glass material of the present invention can be used as a faraday rotation element which is one of magneto-optical elements. The effects of the present invention can be enjoyed by using the above-described application.
The method for producing a glass material of the present invention is a method for producing a glass material, the method including: and heating and melting the glass raw material pieces while keeping the glass raw material pieces suspended in the air to obtain molten glass, and then cooling the molten glass.
Generally, a glass material is produced by melting and cooling a raw material in a melting vessel such as a crucible (melting method). However, the glass material of the present invention has a large content of Pr not substantially constituting the glass skeleton as described above2O3Since the composition (b) is a material which is difficult to vitrify, crystallization may occur from the contact interface with the melting vessel as a starting point in a general melting method.
Even in a composition that is difficult to vitrify, the composition can be vitrified without contacting the interface of the melting vessel. As such a method, a container-less suspension method is known in which the raw material is melted and cooled in a suspended state. In the case of this method, since the molten glass hardly comes into contact with the melting vessel, crystallization can be prevented from proceeding from the interface with the melting vessel, and vitrification can be achieved.
ADVANTAGEOUS EFFECTS OF INVENTION
The glass material of the present invention can achieve both a high faraday effect and a high light transmittance in a short wavelength range, and is particularly suitable as a faraday rotation element of a magneto-optical device in a short wavelength range.
Drawings
FIG. 1 is a schematic sectional view showing one embodiment of an apparatus for producing a glass material of the present invention.
Detailed Description
The glass material of the present invention contains Pr in mol%2O3 30～50％、B2O3+P2O50.1 to 70 percent. The reason why the glass composition range is limited in this manner will be described below. In the following description of the content of each component, "%" means "% by mole" unless otherwise specified.
Pr2O3Is a component for increasing the faraday effect by increasing the absolute value of the wiener constant. Pr (Pr) of2O3The content of (B) is 30 to 50%, preferably 30 to 49%, 31 to 48%, particularly 32 to 47%. Pr (Pr) of2O3When the content of (b) is too small, the absolute value of the Verdet constant becomes small, and it is difficult to obtain a sufficient Faraday effect. On the other hand, Pr2O3When the content of (3) is too large, the ultraviolet absorption edge of the glass tends to shift to the long wavelength side. In addition, vitrification also tends to be difficult.
Further, Pr in the present invention2O3The content of (b) is a value represented by converting all of Pr present in the glass to 3-valent oxides.
Regarding the magnetic moment, Pr, which is the origin of the Verlag constant3+Greater than Pr4+. Thus, Pr in the glass material3+The larger the ratio of (A) is, the larger the Faraday effect is, and thus preferred. Specifically, Pr in all Pr3+The proportion of (b) is preferably 50% or more, 60% or more, 70% or more, 80% or more, particularly 90% or more in terms of mol%.
B2O3And P2O5Is a component which serves as a glass skeleton and is used for widening the vitrification range. Further, by containing these components, the ultraviolet absorption edge can be shifted to the short wavelength side. However, since these components are not favorable for improving the Verdet constant, it becomes difficult to obtain a sufficient Faraday effect when the content is too large. Thus, B2O3And P2O5The content of (b) is 0.1 to 70%, preferably 0.5 to 69%, 1 to 68%, 2 to 67%, 3 to 66%, and particularly 4 to 65% in total.
In addition, B2O3And P2O5The preferred contents of the respective components (a) and (b) are as follows.
B2O3The content of (A) is preferably 0 to 70% (excluding 70%), 0.1 to 69%, 1 to 68%, 2 to 67%, 3 to 66%, particularly 4 to 65%.
P2O5The content of (B) is preferably 0 to 70%, 0.1 to 60%, 1 to 55%, 2 to 50%, 3 to 48%, 4 to 47%, particularly 5 to 46%.
The glass material of the present invention may contain various components shown below in addition to the above components.
Al2O3Is a component which forms a glass skeleton as an intermediate oxide and expands the vitrification range. However, due to Al2O3When the content is too large, it becomes difficult to obtain a sufficient faraday effect. Thus, Al2O3The content of (B) is preferably 0 to 50%, 0.1 to 40%, 1 to 30%, 1 to 20%, particularly 1 to 10%.
SiO2Is a component contributing to the formation of glass and widening the vitrification range. However, SiO2When the amount is too large, the ultraviolet absorption edge of the glass tends to move to the long wavelength side. Thus, SiO2The content of (B) is preferably 0 to 40%, 0 to 35%, 0 to 30%, 0.1 to 25%, particularly 1 to 20%.
La2O3、Gd2O3、Yb2O3、Y2O3Although this has the effect of improving the stability of vitrification, if the content is too large, vitrification becomes difficult. And, this causes a decrease in light transmittance. Thus, La2O3、Gd2O3、Yb2O3、Y2O3The content of (b) is preferably 10% or less, particularly 5% or less, respectively.
Tb2O3、Dy2O3、Eu2O3、Ce2O3Contributes to an increase in the Verdet constant, but causes a decrease in light transmittance. Thus, Tb2O3、Dy2O3、Eu2O3、Ce2O3The content of (b) is preferably 10% or less, 5% or less, particularly 1% or less, respectively. In addition, Tb2O3、Dy2O3、Eu2O3、Ce2O3The content of (b) is a content expressed by converting all of Tb, Dy, Eu, and Ce present in the glass into oxides having a valence of 3.
MgO, CaO, SrO, BaO have the effect of improving the stability of vitrification and chemical durability. However, since the improvement of the Verdet constant is not facilitated, when the content is too large, it becomes difficult to obtain a sufficient Faraday effect. Therefore, the content of each of these components is preferably 0 to 10%, particularly 0 to 5%.
Ga2O3Has the effects of improving glass forming ability and enlarging vitrification range. However, if the content is too large, devitrification is liable to occur. In addition, Ga2O3When the content is too large, it becomes difficult to obtain a sufficient faraday effect. Thus, Ga2O3The content of (B) is preferably 0 to 6%, particularly 0 to 5%.
Fluorine has the effect of improving the glass forming ability and expanding the vitrification range. However, if the content is too large, the glass may volatilize during melting to cause composition fluctuation or affect the stability of vitrification. Thus, the content of fluorine (F)2Converted) is preferably 0 to 10%, 0 to 7%, and particularly preferably 0 to 5%.
Can add Sb2O3As a reducing agent. However, in order to avoid coloring or to consider a load on the environment, Sb2O3The content of (b) is preferably 0.1% or less.
The glass material of the present invention is preferably short in ultraviolet absorption edge, particularly when used as a magneto-optical element such as an optical isolator, an optical circulator, or a magnetic sensor. Therefore, the shortest wavelength at which the light transmittance reaches 60% is preferably 350nm or less, 345nm or less, 340nm or less, 330nm or less, 320nm or less, and particularly 300nm or less, when the thickness is 1 mm. Further, the transmittance is an external transmittance including reflection.
The glass material of the present invention can be produced by, for example, a container-less suspension method. Fig. 1 is a schematic cross-sectional view showing an example of a manufacturing apparatus for manufacturing a glass material by a container-less float method. Hereinafter, a method for producing a glass material according to the present invention will be described with reference to fig. 1.
The glass material manufacturing apparatus 1 includes a molding die 10. The mold 10 functions as a melting vessel. The molding die 10 has a molding surface 10a and a plurality of gas ejection holes 10b that open on the molding surface 10 a. The gas ejection hole 10b is connected to a gas supply mechanism 11 such as a gas cylinder. The gas is supplied from the gas supply mechanism 11 to the molding surface 10a through the gas ejection holes 10 b. The kind of gas is not particularly limited, and may be, for example, air or oxygen, or nitrogen, argon, helium, carbon monoxide gas, carbon dioxide gas, or reducing gas containing hydrogen.
When a glass material is produced using the production apparatus 1, first, the glass material block 12 is placed on the molding surface 10 a. Examples of the glass raw material block 12 include a raw material block obtained by integrating raw material powders by press molding or the like, a sintered body obtained by integrating raw material powders by press molding or the like and then sintering the integrated raw material powders, and an aggregate of crystals having a composition equivalent to a target glass composition.
Next, the glass raw material block 12 is floated on the molding surface 10a by ejecting the gas from the gas ejection holes 10 b. That is, the glass material block 12 is held without contacting the molding surface 10 a. In this state, the glass raw material block 12 is irradiated with laser light from the laser irradiation device 13. In this way, the glass raw material block 12 is heated and melted to be vitrified, and molten glass is obtained. Thereafter, the molten glass is cooled, whereby a glass material can be obtained. In the step of heating and melting the glass material block 12 and the step of cooling the glass material to a temperature at which the temperature of the molten glass and hence the glass material becomes at least the softening point or lower, it is preferable to suppress contact between the glass material block 12, the molten glass, and hence the glass material and the molding surface 10a by continuing to eject at least the gas. Alternatively, the glass raw material block 12 may be floated on the molding surface 10a by applying a magnetic field and utilizing the generated magnetic force. The heating and melting method may be a method of irradiating laser light, or may be radiant heating.
Since the glass material of the present invention has a high magnetic susceptibility, the glass material of the present invention can be used for an auto-focusing lens of a digital camera, a camera-equipped mobile phone, or the like by molding the glass material into a lens shape by press molding or the like. In these cameras, a driving device for changing a focal distance of the camera, that is, moving an autofocus lens to a predetermined position is provided, and conventionally, the driving device includes a lens holder for fixing the lens and a spring for moving the lens holder. However, the driving device having the lens holder and the spring cannot be downsized for the digital camera, the camera-equipped mobile phone, and the like. However, when the lens is manufactured from the glass material of the present invention having a high magnetic susceptibility, the lens itself can be moved by the magnet, and therefore, a lens holder and a spring are not required, and the camera and the like can be downsized.
In addition, the light transmittance of the glass material in the wavelength range of 250-420 nm is higher than that of the glass material in the wavelength range of 420-500 nm, the light transmittance of the glass material in the wavelength range of 500-550 nm is higher than that of 550-620 nm, and the light transmittance of the glass material in the wavelength range of 620-950 nm is higher than that of 950-1200 nm. Since the glass material of the present invention has a property of absorbing light in a specific wavelength range, it can be used as a bandpass filter by forming the glass material into a sheet shape by polishing or the like.
Examples
The present invention will be described below with reference to examples, but the present invention is not limited to these examples.
Table 1 shows examples and comparative examples of the present invention.
[ Table 1]
Each sample was produced as follows. First, raw materials prepared to have glass compositions shown in the table were press-molded and sintered at 800 to 1400 ℃ for 6 hours, thereby producing glass raw material blocks.
Next, the glass raw material block was coarsely pulverized in a mortar to form 0.05 to 1.5g of small pieces. Using the small pieces of the obtained glass raw material block, a glass material (about 1 to 10mm in diameter) was produced by a container-less suspension method using the apparatus according to FIG. 1. Further, as the heat source, 100W of CO was used2A laser oscillator. In addition, nitrogen gas is used as gas for suspending the raw material block in the air, and the nitrogen gas is supplied at a flow rate of 1-30L/min.
The resulting glass material was measured for a Ver constant using a Kerr Effect measuring apparatus (model K-250, manufactured by Nippon spectral Co., Ltd.). Specifically, the obtained glass material is polished to a thickness of about 1mm, and the Faraday rotation angle at a wavelength of 400 to 850nm is measured in a magnetic field of 15kOe, and the Verdet constant at a wavelength of 400nm is calculated. Further, the scanning speed of the wavelength was 6 nm/min. The results are shown in Table 1.
The glass material obtained was polished to a thickness of 1mm for the shortest wavelength at which the light transmittance reached 60%, and measured using a spectrophotometer (UV-3100 manufactured by Shimadzu corporation). Further, the light transmittance is an external transmittance including reflection as well.
As is clear from Table 1, the glass materials of examples 1 to 5 had a large absolute value, with a Verdet constant of-0.74 to-1.87 at a wavelength of 400 nm. In addition, the shortest wavelength at which the light transmittance reaches 60% is as small as 298-338 nm, and the light transmittance in the short wavelength range is excellent. On the other hand, the glass material of comparative example 1 had a Verdet constant of-0.48 at a wavelength of 400nm and a small absolute value. The glass material of comparative example 2 had a Verdet constant of-0.62 at a wavelength of 400nm and a small absolute value. In addition, the shortest wavelength at which the light transmittance reaches 60% is as large as 358nm, and the light transmittance in the short wavelength range is poor.
Industrial applicability of the invention
The glass material of the present invention is suitable for materials for magneto-optical elements constituting magnetic devices such as optical isolators, optical circulators, and magnetic sensors, magnetic glass lenses for digital cameras, and glass sheets for bandpass filters.
Description of the symbols
1: glass material manufacturing device
10: forming die
10 a: molding surface
10 b: gas jet hole
11: gas supply mechanism
12: glass raw material block
13: laser irradiation device
Claims (6)
1. A glass material characterized by:
contains Pr in mol%2O3 31～50％、B2O3+P2O5 0.1～69％，
Wherein, in mol%, B2O3Is 0-68%, P2O5The content of (A) is 0.1-60%.
2. The glass material of claim 1, wherein:
in mol%, further contains Al2O3 0～50％。
3. The glass material of claim 1 or claim 2, wherein:
the shortest wavelength at which the light transmittance reaches 60% is 350nm or less when the thickness is 1 mm.
4. The glass material of claim 1 or claim 2, wherein:
as a magneto-optical element.
5. The glass material of claim 4, wherein:
the Faraday rotator was used.
6. A method for producing a glass material according to any one of claims 1 to 5, the method comprising:
and heating and melting the glass raw material blocks while keeping the glass raw material blocks suspended in the air to obtain molten glass, and then cooling the molten glass.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-198993 | 2016-10-07 | ||
| JP2016198993 | 2016-10-07 | ||
| JP2017-080501 | 2017-04-14 | ||
| JP2017080501A JP2018062457A (en) | 2016-10-07 | 2017-04-14 | Glass material and method for producing the same |
| PCT/JP2017/029676 WO2018066239A1 (en) | 2016-10-07 | 2017-08-18 | Glass material and method for manufacturing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109715575A CN109715575A (en) | 2019-05-03 |
| CN109715575B true CN109715575B (en) | 2022-03-01 |
Family
ID=61830839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780057494.9A Active CN109715575B (en) | 2016-10-07 | 2017-08-18 | Glass material and method for producing same |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7109746B2 (en) |
| CN (1) | CN109715575B (en) |
| WO (1) | WO2018066239A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112021001901T5 (en) * | 2020-03-27 | 2023-01-05 | Nippon Electric Glass Co., Ltd. | GLASS MATERIAL |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04170338A (en) * | 1990-11-01 | 1992-06-18 | Matsushita Electric Ind Co Ltd | Magnetic glass |
| US6482758B1 (en) * | 1999-10-14 | 2002-11-19 | Containerless Research, Inc. | Single phase rare earth oxide-aluminum oxide glasses |
| JP2008150276A (en) * | 2006-11-21 | 2008-07-03 | Canon Inc | Glass composition for ultraviolet light and optical device using the same |
| CN104583139A (en) * | 2012-12-28 | 2015-04-29 | 日本电气硝子株式会社 | Method for manufacturing glass material |
| JP2016121264A (en) * | 2014-12-25 | 2016-07-07 | 国立大学法人長岡技術科学大学 | Phosphor and method for producing the same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58153918A (en) * | 1982-03-10 | 1983-09-13 | Yokogawa Hokushin Electric Corp | Manufacture of element having magnetooptic effect |
| KR100618322B1 (en) | 2004-12-24 | 2006-08-31 | 주식회사 파이컴 | Partial type backlight apparatus |
-
2017
- 2017-08-18 CN CN201780057494.9A patent/CN109715575B/en active Active
- 2017-08-18 WO PCT/JP2017/029676 patent/WO2018066239A1/en active Application Filing
-
2021
- 2021-09-22 JP JP2021154263A patent/JP7109746B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04170338A (en) * | 1990-11-01 | 1992-06-18 | Matsushita Electric Ind Co Ltd | Magnetic glass |
| US6482758B1 (en) * | 1999-10-14 | 2002-11-19 | Containerless Research, Inc. | Single phase rare earth oxide-aluminum oxide glasses |
| JP2008150276A (en) * | 2006-11-21 | 2008-07-03 | Canon Inc | Glass composition for ultraviolet light and optical device using the same |
| CN104583139A (en) * | 2012-12-28 | 2015-04-29 | 日本电气硝子株式会社 | Method for manufacturing glass material |
| JP2016121264A (en) * | 2014-12-25 | 2016-07-07 | 国立大学法人長岡技術科学大学 | Phosphor and method for producing the same |
Non-Patent Citations (2)
| Title |
|---|
| Kentaro Terashima et al..Structure and Nonlinear Optical Properties of Lanthanide Borate Glasses.《J. Am. Ceram. Soc.》.1997, * |
| Structure and Nonlinear Optical Properties of Lanthanide Borate Glasses;Kentaro Terashima et al.;《J. Am. Ceram. Soc.》;19971231;第2904页右栏第2段 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2021193066A (en) | 2021-12-23 |
| CN109715575A (en) | 2019-05-03 |
| WO2018066239A1 (en) | 2018-04-12 |
| JP7109746B2 (en) | 2022-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6694154B2 (en) | Glass material and manufacturing method thereof | |
| JP6728644B2 (en) | Glass material and manufacturing method thereof | |
| WO2017051685A1 (en) | Glass material and method for manufacturing same | |
| JPWO2015008553A1 (en) | Magneto-optical material, manufacturing method thereof, and magneto-optical device | |
| JP2016169115A (en) | Magnetic optical material and magnetic optical device | |
| CN109715575B (en) | Glass material and method for producing same | |
| WO2016121655A1 (en) | Glass material and method for manufacturing same | |
| JP6137044B2 (en) | Magneto-optical material and magneto-optical device | |
| WO2018163759A1 (en) | Glass material and method for manufacturing same | |
| JP6878894B2 (en) | Glass material and its manufacturing method | |
| JP6897113B2 (en) | Glass material and its manufacturing method | |
| JP6686386B2 (en) | Glass material and manufacturing method thereof | |
| JP6897114B2 (en) | Glass material and its manufacturing method | |
| JP6897112B2 (en) | Glass material and its manufacturing method | |
| JP2018062457A (en) | Glass material and method for producing the same | |
| JP2022109289A (en) | Glass material and method for producing the same | |
| JP6861953B2 (en) | Glass material and its manufacturing method | |
| CN115210192A (en) | Glass material | |
| JP6926436B2 (en) | Glass material and its manufacturing method | |
| WO2018079090A1 (en) | Magneto-optic element and method for producing same | |
| JP6617446B2 (en) | Glass material | |
| JP6830612B2 (en) | Glass material and its manufacturing method | |
| CN110234611B (en) | Glass material and method for producing same | |
| JP2018072419A (en) | Magnetic glass lens | |
| JP6187379B2 (en) | Magneto-optical material and magneto-optical device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |