WO2001016042A1 - Verre filtrant les rayons infrarouges pour commutateur a lames - Google Patents
Verre filtrant les rayons infrarouges pour commutateur a lames Download PDFInfo
- Publication number
- WO2001016042A1 WO2001016042A1 PCT/JP1999/004685 JP9904685W WO0116042A1 WO 2001016042 A1 WO2001016042 A1 WO 2001016042A1 JP 9904685 W JP9904685 W JP 9904685W WO 0116042 A1 WO0116042 A1 WO 0116042A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- glass
- infrared
- infrared absorbing
- absorbing glass
- less
- Prior art date
Links
- 239000011521 glass Substances 0.000 title claims abstract description 101
- 235000014676 Phragmites communis Nutrition 0.000 title abstract 3
- 238000002834 transmittance Methods 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 7
- 239000000956 alloy Substances 0.000 abstract description 5
- 229910045601 alloy Inorganic materials 0.000 abstract description 5
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 abstract description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 abstract 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 1
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 abstract 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052801 chlorine Inorganic materials 0.000 abstract 1
- 239000000460 chlorine Substances 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 description 13
- 230000000694 effects Effects 0.000 description 9
- 238000001704 evaporation Methods 0.000 description 7
- 230000008020 evaporation Effects 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000004031 devitrification Methods 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 4
- 150000002367 halogens Chemical class 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000004255 ion exchange chromatography Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 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
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
-
- 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
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
- C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
- C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
- C03C3/093—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium containing zinc or zirconium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/005—Apparatus or processes specially adapted for the manufacture of electric switches of reed switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
- H01H36/0006—Permanent magnet actuating reed switches
Definitions
- the present invention relates to an infrared absorbing glass for a lead switch suitable for enclosing a lead switch using a magnetic wire made of an Fe—Ni-based alloy (52 alloy).
- the lead switch is composed of opposing magnetic wire contacts and a glass tube that encloses the contacts. By applying a magnetic field from outside the glass tube, the contacts are opened and closed. .
- the magnetic wire is sealed in the glass tube by heating and softening both ends of the glass tube with the magnetic wire inserted inside the glass tube under an inert gas, a reducing gas or a vacuum.
- a heat source that can be used in the above-mentioned atmosphere, for example, an infrared radiation heat source using a halogen lamp condensed by a reflector is used.
- infrared absorbing glass developed specifically for lead switch glass is used.
- the infrared absorbing glass having a characteristic that the infrared transmittance at a wavelength of 150 nm is about 15 to 20% when the thickness of the glass is 0.5 mm is widely used.
- miniaturization of electronic components is strongly required as an essential condition.
- miniaturization of lead switches has been promoted, and the shorter, shorter, and thinner glass tubes that determine the size of the lead switches are being used.
- the first problem is that the infrared light from the halogen lamp becomes a spot with a diameter of about 10 mm even when condensed.
- the center of the infrared spot is aligned with the center of the seal in a lead switch using a short, thin-walled glass tube, the outer edge of the spot hits the contact point of the switch, which should not be heated. Will be lost. Therefore, it is necessary to deliberately remove the center of the spot from the center of the seal and heat the outer edge of the spot.
- the outer edge of the spot has low infrared energy and is an unstable part, so it takes a long time to seal and the productivity is deteriorated, and the variation in the shape of the seal increases, resulting in poor yield.
- the glass when sealing, the glass is in a softened state before or after 100 ° C., and a very small amount of the glass component evaporates. This evaporated component recondenses on the nearby metal material or glass surface of the relatively low-temperature lead switch. In the case of a short lead switch, the evaporated glass components condense again near the contact point of the switch, causing contact failure (poor continuity) of the switch.
- the present invention has been made in view of the above problems, and has as its object to provide an infrared absorbing glass suitable for efficiently producing a small lead switch. Disclosure of the invention
- the present inventors By limiting the infrared transmittance of glass to an appropriate lower range and strictly limiting the amount of C1 that is slightly mixed as an impurity into glass, the present inventors have realized the miniaturization of lead switches. The inventors have found that the accompanying problem can be solved, and propose the present invention.
- the infrared-absorbing glass for lead switch of the present invention has an infrared transmittance at a wavelength of 150 nm of not more than 10% at a thickness of 0.5 mm and a C 1 content in the glass. Is less than 150 ppm.
- the infrared absorbing glass for lead switch of the present invention has an infrared transmittance at a wavelength of 150 nm of not more than 10% at a thickness of 0.5 mm.
- Low infrared transmittance is an essential property for absorbing heat rays, but if the glass has a thickness of 0.5 mm and the infrared transmittance at a wavelength of 150 nm exceeds 10%, When manufacturing a small lead switch using short diameter, short length, and thin glass, infrared absorption from a halogen lamp is not sufficient, and extra time and extra energy are required for sealing. Also, since the amount of infrared light that passes through the glass and reaches the inside of the lead switch increases, the contact part of the switch is heated and the magnetic characteristics are degraded. Further, the infrared absorbing glass for lead switch of the present invention has a very low C 1 content.
- C1 is contained as an impurity in the glass raw material, and when a glass produced using such a raw material is heated, salts such as NaCl and KC1 are easily evaporated. Evaporated salt condenses again in the lead switch, causing contact failure (poor conduction). Therefore, in the present invention, the content of C 1 in the glass is limited to 150 ppm or less, preferably 1 OO ppm or less.
- F exists as a component similar to C 1.
- F may be contained as an impurity in the glass raw material, but must be actively introduced into the glass because it lowers the viscosity of the glass or has a very strong effect as a flux. There is. However, if the glass contains a large amount of F, N a F, K
- the content of F should be less than 5000 ppm, especially less than 1500 ppm.
- the linear thermal expansion coefficient in the range of 3 0 ⁇ 3 8 0 ° C of the glass, and a limited child to 8 5 ⁇ 1 0 0 X 1 0- 7 / ° C is important. If the coefficient of linear thermal expansion is out of this range, matching with the 52 alloy, which is the magnetic material of the lead switch, will not be achieved, and a leak (airtight leak) will occur at the seal, or in the worst case, glass Is damaged.
- the reasons for limiting the glass composition as described above are as follows.
- S i 0 2 is Ru main component Der needed to configure the skeleton of glass, 7 more than 5%, the linear thermal expansion coefficient of solubility with is too low worse, than 6 0% If the amount is too small, the chemical durability deteriorates. For this reason, the glass is degraded by chemical treatment such as plating in the lead switch manufacturing process. Weather resistance that maintains long-term reliability as an electronic component cannot be obtained.
- Al 2 ⁇ 3 has a remarkable effect on improving the weather resistance of glass and suppressing devitrification in glass melting.However, if it exceeds 10%, melting of the glass becomes difficult, and if it is less than 1%, it becomes difficult. The above effects cannot be obtained.
- ⁇ 0, Mg0, Ba0, Sr ⁇ , and ZnO represented by 1 ⁇ 0 have the effect of lowering the viscosity of glass and improving the weather resistance of glass. If the total amount is more than 10%, the devitrification of the glass increases, and it becomes difficult to produce a homogeneous glass. If the total amount is less than 3.5%, the above effects cannot be obtained.
- L i 20 is the glass solidification required for electrical insulation of the lead switch. This has the effect of increasing the coefficient of linear thermal expansion to some extent while maintaining high resistivity. Further, remarkable effect of reducing the effectiveness and viscosity of the flux larger Kiitame, by the L i 2 0 essential component, but is usually used as a flux in glass are also evaporable component B the content of 2 0 3 as much as possible can and Herasuko. However, when Li 2 ⁇ is more than 5%, the weather resistance and the devitrification of the glass deteriorate, which is not preferable. On the other hand, if it is less than 0.5%, the above effects cannot be obtained.
- N a 2 ⁇ and K 2 ⁇ like L i 2 0, the linear thermal expansion coefficient of the glass as well as greatly, is a component which promotes melting of glass, N a 2 ⁇ and K 2 ⁇ is If the total amount exceeds 17%, the coefficient of linear thermal expansion becomes too large, and the weather resistance and volume resistivity of the glass are significantly deteriorated. On the other hand, if it is less than 8%, a predetermined coefficient of linear thermal expansion cannot be obtained, and melting of the glass becomes difficult.
- L i 2 ⁇ the content of one component of the N a 2 0, K 2 ⁇ is, when alone so as not to exceed 80% of the total amount, by a work of the mixed alkali effect, and more Excellent weather resistance and high volume resistivity can be obtained.
- F e 30 4 (to absorb the infrared radiation is F e 0, in this. This coexisting with F e 2 0 3, depending on the Les Docks in the glass, all of the iron oxide F e 3 represents in terms of 0 4.) is the glass is used as the essential component for imparting the infrared absorbing capacity, but it is more than 1 0% is difficult glass of, from 2% small, Note c thickness of the glass can not be a put that wavelength 1 050 nm infrared transmittance of the 0.
- a batch is prepared to have the desired composition.
- the glass It is important to select or purify glass materials with low C 1 (and F) content so that the content of CI (and F) contained in them is within the above range. is there.
- the reducing agent is added to the glass in an amount of about 1 to 1%, the glass having a transmittance of 10% or less at a wavelength of 0.50 nm at a thickness of 0.5 mm can be stabilized. Can be obtained.
- the batch is melted and vitrified. Subsequently, the molten glass is formed into a tube and cut into a predetermined length, whereby an infrared absorbing glass for a lead switch can be obtained.
- Tables 1 and 2 below show the compositions and properties of examples of the present invention (samples N 0.1 to 7) and comparative examples (samples Nos. 8 and 9).
- glass raw materials were prepared to have the compositions shown in Tables 1 and 2, and were sufficiently mixed.
- carbon as a reducing agent was added at a ratio shown in the table, and the mixture was melted at 150 ° C. for 4 hours using a platinum crucible. After melting, the melt was poured on a carbon plate and annealed to produce each glass sample.
- the infrared transmittance at a wavelength of 0.50 nm at a glass thickness of 0.5 mm, the C1 and F contents, and the linear thermal expansion coefficient in the temperature range of 30 to 38 ° C were measured. The results are shown in Tables 1 and 2 below.
- each of the samples Nos. 1 to 7 of the present invention has an infrared transmittance of 8.3% or less and a C1 content of 150. ppm or less.
- the time required for sealing and the adhesion of salt due to evaporation during heating were evaluated using the sample glass formed into a tube.
- the time required for sealing was less than 1.5 seconds for all samples.
- no sample adhered by evaporation was observed in the samples of Nos. 1 to 5.
- microscopic observation showed some adhesion of salt, but could not be confirmed visually.
- the attached salt was sample N o.6 was NaCl and sample No.7 was NaF.
- sample No. 8 which is a comparative example, took 3.4 seconds to seal because the infrared transmittance was as high as 18.8%.
- Sample No. 9 had a large C 1 content, and thus, salt adhesion was confirmed by visual observation. E PMA analysis showed that the attached salts were Na C 1 and K C 1.
- the infrared transmittance was measured by processing glass into a plate having a thickness of 0.5 mm, and then mirror-polishing both surfaces of the glass, and then measuring the transmittance at a wavelength of 150 nm using a spectrophotometer. It was measured.
- the content of C 1 and F in the glass is the value measured by pulverizing the prepared glass sample, melting it by alkali, and using ion chromatography.
- the linear thermal expansion coefficient an average linear thermal expansion coefficient in a temperature range of 30 to 380 ° C. was measured by using an automatic differential thermal expansion meter.
- the time required for sealing was as follows: After preparing a sample glass tube with an outer diameter of 1.7 mm, a wall thickness of 0.2 mm, and a length of 8 mm, a focused halogen lamp was placed at the end of the tube. It measures the time required until the tube end is sealed by heating by irradiating infrared rays. The presence or absence of salt due to evaporation was determined by observing the non-heated part of the glass tube sealed by heating and softening with a visual microscope and a stereoscopic microscope (50 times magnification).
- the infrared-absorbing glass of the present invention has excellent infrared-absorbing properties, and can be efficiently sealed even when heated at the outer edge of the infrared spot.
- the infrared absorbing glass according to the present invention is most suitable as the encapsulating glass for the lead switch.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Glass Compositions (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19503598A JP3902333B2 (ja) | 1998-06-24 | 1998-06-24 | リードスイッチ用赤外線吸収ガラス |
EP99940563A EP1153895A4 (en) | 1999-08-30 | 1999-08-30 | INFRARED RAYS FILTERING GLASS FOR BLADE SWITCHES |
US09/830,722 US6727198B1 (en) | 1998-06-24 | 1999-08-30 | Infrared absorbing glass for reed switch |
PCT/JP1999/004685 WO2001016042A1 (fr) | 1998-06-24 | 1999-08-30 | Verre filtrant les rayons infrarouges pour commutateur a lames |
US10/787,636 US6935138B2 (en) | 1999-08-30 | 2004-02-26 | Infra-red absorption glass for a reed switch |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19503598A JP3902333B2 (ja) | 1998-06-24 | 1998-06-24 | リードスイッチ用赤外線吸収ガラス |
PCT/JP1999/004685 WO2001016042A1 (fr) | 1998-06-24 | 1999-08-30 | Verre filtrant les rayons infrarouges pour commutateur a lames |
Related Child Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09830722 A-371-Of-International | 1999-08-30 | ||
US09/830,722 A-371-Of-International US6727198B1 (en) | 1998-06-24 | 1999-08-30 | Infrared absorbing glass for reed switch |
US10/787,636 Division US6935138B2 (en) | 1999-08-30 | 2004-02-26 | Infra-red absorption glass for a reed switch |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001016042A1 true WO2001016042A1 (fr) | 2001-03-08 |
Family
ID=14236583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/004685 WO2001016042A1 (fr) | 1998-06-24 | 1999-08-30 | Verre filtrant les rayons infrarouges pour commutateur a lames |
Country Status (3)
Country | Link |
---|---|
US (1) | US6935138B2 (ja) |
EP (1) | EP1153895A4 (ja) |
WO (1) | WO2001016042A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1381063A1 (en) * | 2002-07-10 | 2004-01-14 | Kearney-National Netherlands Holding B.V. | Method for adjusting the switch-gap between the contact tongues of a reed switch |
US7163904B2 (en) * | 2002-09-30 | 2007-01-16 | Schott Ag | Colorless glasses/borosilicate glasses with special UV-edge |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3450410A4 (en) | 2016-04-28 | 2019-11-27 | Nippon Electric Glass Co., Ltd. | GLASS TUBE FOR METAL SEALING AND GLASS FOR METAL SEALING |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5050417A (ja) * | 1973-09-04 | 1975-05-06 | ||
US4277285A (en) * | 1979-01-12 | 1981-07-07 | Corning Glass Works | Sealing glass with high coefficient of absorption for infra-red rays |
JPH04310537A (ja) * | 1991-04-08 | 1992-11-02 | Nippon Electric Glass Co Ltd | 赤外線吸収ガラス |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL6813196A (ja) * | 1968-09-14 | 1970-03-17 | ||
DE1796232B1 (de) * | 1968-09-25 | 1971-08-05 | Jenaer Glaswerk Schott & Gen | Waermeabsorbierende und elektrisch hochisolierende verschmel zglaeser mit waermedehnungskoeffizienten zwischen 91,5 und 94,9 x 10 hoch 7 pro grad c (20 bis 300 grad c) zum ver schmelzen mit hilfe von heizstrahlen |
GB1497190A (en) * | 1975-01-30 | 1978-01-05 | Jenaer Glaswerk Schott & Gen | Glass compositions |
US3949335A (en) * | 1975-04-21 | 1976-04-06 | Corning Glass Works | Reed switch construction |
DE3810939A1 (de) * | 1988-03-31 | 1989-10-19 | Schott Ruhrglas | Zuschmelz-versandbehaelter aus glas fuer biologisches material |
DE4015264C1 (ja) * | 1990-05-12 | 1991-07-18 | Schott Glaswerke | |
JPH0694378B2 (ja) | 1991-09-03 | 1994-11-24 | 日本電気硝子株式会社 | 赤外線吸収ガラス |
DE19638500C1 (de) * | 1996-09-19 | 1997-12-18 | Siemens Matsushita Components | Umhüllung von Keramikbauteilen |
WO1998050314A1 (en) | 1997-05-07 | 1998-11-12 | Corning Incorporated | Ir and uv absorbing brown solar glasses, ophthalmic lenses |
-
1999
- 1999-08-30 EP EP99940563A patent/EP1153895A4/en not_active Withdrawn
- 1999-08-30 WO PCT/JP1999/004685 patent/WO2001016042A1/ja not_active Application Discontinuation
-
2004
- 2004-02-26 US US10/787,636 patent/US6935138B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5050417A (ja) * | 1973-09-04 | 1975-05-06 | ||
US4277285A (en) * | 1979-01-12 | 1981-07-07 | Corning Glass Works | Sealing glass with high coefficient of absorption for infra-red rays |
JPH04310537A (ja) * | 1991-04-08 | 1992-11-02 | Nippon Electric Glass Co Ltd | 赤外線吸収ガラス |
Non-Patent Citations (1)
Title |
---|
See also references of EP1153895A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1381063A1 (en) * | 2002-07-10 | 2004-01-14 | Kearney-National Netherlands Holding B.V. | Method for adjusting the switch-gap between the contact tongues of a reed switch |
US7163904B2 (en) * | 2002-09-30 | 2007-01-16 | Schott Ag | Colorless glasses/borosilicate glasses with special UV-edge |
Also Published As
Publication number | Publication date |
---|---|
EP1153895A4 (en) | 2004-04-14 |
EP1153895A1 (en) | 2001-11-14 |
US20040163415A1 (en) | 2004-08-26 |
US6935138B2 (en) | 2005-08-30 |
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