CN107417094A - High-refraction high-dispersion phosphate optical glass - Google Patents
High-refraction high-dispersion phosphate optical glass Download PDFInfo
- Publication number
- CN107417094A CN107417094A CN201710341851.6A CN201710341851A CN107417094A CN 107417094 A CN107417094 A CN 107417094A CN 201710341851 A CN201710341851 A CN 201710341851A CN 107417094 A CN107417094 A CN 107417094A
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- Prior art keywords
- parts
- glass
- refraction
- optical glass
- dispersion
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Classifications
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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
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—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
-
- 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
- C03C3/21—Silica-free oxide glass compositions containing phosphorus containing titanium, zirconium, vanadium, tungsten or molybdenum
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
The invention discloses a kind of high-refraction high-dispersion phosphate optical glass, the parts by weight of its chemical composition are：P2O5：20.0~30.0 parts, TiO2：10.0~20.0 parts, Nb2O5：40.0~60.0 parts, BaO：0~5.0 part, B2O3：0~3.0 part, SiO2：0~1.0 part, Na2O：1~5.0 part, K2O：1~4.0 part.The high-refraction high-dispersion phosphate optical glass refractive index (nd) of the present invention is 1.90~2.0, Abbe number (vd) is 17~20, chemical stability and devitrification resistance property are good, smelting furnace is corroded few, and there is preferable melting behaviour and chemical stability, there is 70 parts of light transmittance in 470nm or shorter wavelength, be issued to 5 parts of light transmittance in 400nm or shorter wavelength, it is seen that more than 99 parts of light light transmittance.
Description
Technical field
The invention belongs to glass preparation field, and in particular to a kind of high-refraction high-dispersion phosphate optical glass.
Background technology
In recent years, with the continuous development of the electronic instrument using optical system, digitlization, fine are constantly moved towards
Change, using the photographic equipments such as digital camera, video camera as the optical elements such as lens used in the optical instrument of representative to lightweight,
The requirement of miniaturization also more and more higher.
In Optical System Design, people generally realize the ultrathin of optical element, wide angle with glass of high refractive index,
And high index of refraction, the glass of low dispersion can make up and correcting chromatic aberration, aberration is reduced in lower scope.
Many deficiencies or defect be present in the optical glass of the high index of refraction disclosed in prior art, such as：Chinese patent
CN101941796A discloses a kind of phosphate optical glass of high index of refraction, but wherein contains expensive Ta2O5With to molten
Refining device has the Li of erosion2O。
The content of the invention
In view of this, it is necessary to which it is 1.90~2.00, between Abbe number is 17~20 to provide a kind of refractive index, chemical property
Stable, melting behaviour and devitrification resistance property are good, corrode smelting furnace few high-refraction high-dispersion phosphate optical glass.
The present invention provides a kind of high-refraction high-dispersion phosphate optical glass, and the parts by weight of its chemical composition are：P2O5：
20.0~30.0 parts, TiO2：10.0~20.0 parts, Nb2O5：40.0~60.0 parts, BaO：0~5.0 part, B2O3：0~3.0 part,
SiO2：0~1.0 part, Na2O：1~5.0 part, K2O：1~4.0 part.
The present invention has advantages below：
First, high-refraction high-dispersion phosphate optical glass of the invention does not contain Bi2O3、Sb2O3、As2O3With PbO groups
Point.Bi2O3Although refractive index and the dispersion of optical glass can be greatly improved, its introducing can cause glass coloration, and reduction
Learn stability；Sb2O3、As2O3Prevent with elimination bubble and preferably the effect of glass coloration, but Sb2O3、As2O3Addition must
So increase glass and smelting furnace is particularly and the platinum of platinum smelting furnace is corroded, cause more platinum ions to enter glass, influence glass
Glass transmitance, and the service life of platinum smelting furnace is adversely affected；PbO is remarkably improved the high index of refraction and Gao Se of glass
Dissipate performance, but PbO and As2O3All it is the material that can cause environmental pollution；
Second, high-refraction high-dispersion phosphate optical glass refractive index (nd) of the invention is 1.90~2.00, Abbe number
(vd) between being 17~20, in the light transmittance that 470nm or shorter wavelength have 70 parts, assigned in 400nm or shorter wavelength
To 5 parts of light transmittance, it is seen that more than 99 parts of light light transmittance；
3rd, high-refraction high-dispersion phosphate optical glass stable chemical performance of the invention, melting behaviour and devitrification
Performance is good, smelting furnace is corroded few.
Embodiment
With reference to specific embodiment, the present invention will be described in detail, and the description of this part is only exemplary and explained
Property, there should not be any restriction effect to protection scope of the present invention.
Present embodiment provides a kind of high-refraction high-dispersion phosphate optical glass, and the parts by weight of its chemical composition are：
P2O5：20.0~30.0 parts, TiO2：10.0~20.0 parts, Nb2O5：40.0~60.0 parts, BaO：0~5.0 part, B2O3：0~3.0
Part, SiO2：0~1.0 part, Na2O：1~5.0 part, K2O：1~4.0 part.
Preferably, the parts by weight of the high-refraction high-dispersion phosphate optical glass chemical composition are：P2O5：
22.6~28.3 parts, TiO2：12.1~13.6 parts, Nb2O5：42.1~55.8 parts, BaO：1.6~3.6 parts, B2O3：1.0~2.4
Part, SiO2：0.2~0.8 part, Na2O：1.5~4.5 parts, K2O：2.2~3.7 parts.
P in the present invention2O5It is necessary glass ingredient, and phosphate glass has lower smelting temperature compared with silicate glass,
There is more high transmittance in visible region.The glass of the present invention requires to introduce at least 20 parts of P2O5；Work as P2O5Content is more than 30 parts,
The present invention, which can not be obtained, has the glass of high index of refraction and high dispersion.Therefore, P of the invention2O5Content adjusting range is
20.0~30.0 parts.
TiO in the present invention2The chemical stability of glass can be improved, while improves the refractive index of glass, and can be increased negative
Anomalous dispersion, work as TiO2When content is less than 10 parts, corresponding refractive index can not be obtained, works as TiO2When content is higher than 20 parts, it can increase
Glass coloration, devitrification resistance reduce.Therefore the TiO of the present invention2Content adjusting range is 10~20 parts.
Nb in the present invention2O5It is to obtain high index of refraction and the essential component of high dispersion values, while the chemistry of glass can also be improved
Stability.Work as Nb2O5When content is less than 40 parts, it is impossible to obtain high index of refraction and high dispersion；Work as Nb2O5Content is more than 60
During part, the devitrification resistance property of glass reduces.Therefore the Nb of the present invention2O5Content adjusting range is 40.0~60.0 parts.
BaO is the necessary component for improving glass devitrification and mitigating glass coloration in the present invention, while is also adjustment glass
High temperature viscosity and chemical stability a kind of active principle.The present invention need to introduce the BaO not higher than 5 parts；When BaO contents are more than
At 5 parts, the devitrification resistance property of glass will reduce.Therefore, BaO contents adjusting range of the invention is 0~5.0 part.
B in the present invention2O3The devitrification resistance property of glass can be improved and improve meltdown property, work as B2O3Content is more than 3 parts
When, glass is easy to coloring and deepened, present invention discover that can also influence striped more than this content, is unfavorable for obtaining the glass of high quality,
It will be difficult to obtain high index of refraction and the glass properties of high dispersion simultaneously.Therefore, B of the invention2O3Content adjusting range is 0~3
Part.
SiO in the present invention2And B2O3All play a part of improving chemical durability of glass, but content mistake in optical glass
Height is unfavorable for the high index of refraction of the present invention and the realization of dispersion, therefore SiO2Content adjusting range is 0~1 part.
Alkali metal oxide Na in the present invention2O and K2O can reduce the melting temperature of glass, when introduction volume is excessive, be not easy to obtain
The good glass of chemical stability is obtained, while is difficult to obtain high index of refraction and the glass properties of high dispersion.Therefore, Na of the invention2O
Content adjusting range is 1~5 part；K2O content adjusting range is 1~4 part.
The specific raw material for 10 embodiments that table 1 is enumerated for the present invention sees and each parameter (gained of obtained optical glass
Data are surveyed data after being annealed by -4 DEG C/h).
Wavelength in table 1 during the expressions of λ 70 glass transmission rate 70%, λ 5 represent wavelength during glass transmission rate 5%, nd, vd
Represent the refractive index and Abbe number of the optical glass after Overheating Treatment.
Table 1：
The refractive index nd of high-refraction high-dispersion phosphate optical glass provided by the invention is 1.90~2.00, Abbe number vd
For 17~20, there is 70 parts of light transmittance in 470nm or shorter wavelength, 5 parts saturating is issued in 400nm or shorter wavelength
Light rate, it is seen that more than 99 parts of light light transmittance.And there is preferable melting behaviour and chemical stability.
The embodiment of present invention described above, is not intended to limit the scope of the present invention..Any basis
The various other corresponding changes and deformation that the technical concept of the present invention is made, should be included in the guarantor of the claims in the present invention
In the range of shield.
Claims (5)
- A kind of 1. high-refraction high-dispersion phosphate optical glass, it is characterised in that：The parts by weight of its chemical composition are：P2O5： 20.0~30.0 parts, TiO2：10.0~20.0 parts, Nb2O5：40.0~60.0 parts, BaO：0~5.0 part, B2O3：0~3.0 part, SiO2：0~1.0 part, Na2O：1~5.0 part, K2O：1~4.0 part.
- 2. high-refraction high-dispersion phosphate optical glass according to claim 1, it is characterised in that：The weight of its chemical composition Measuring number is：P2O5：22.6~28.3 parts, TiO2：12.1~19.3 parts, Nb2O5：42.1~55.8 parts, BaO：1.6~3.6 parts, B2O3：1.0~3.0 parts, SiO2：0.2~0.8 part, Na2O：2.6~4.7 parts, K2O：1.3~3.7 parts.
- 3. high-refraction high-dispersion phosphate optical glass according to claim 1, it is characterised in that：The weight of its chemical composition Measuring number is：P2O5：28.3 parts, TiO2：19.3 parts, Nb2O5：40.1 parts, BaO：4.7 parts, B2O3：3.0 parts, SiO2：1.0 parts, Na2O：4.7 parts, K2O：1.3 part.
- 4. high-refraction high-dispersion phosphate optical glass according to claim 1, it is characterised in that：The weight of its chemical composition Measuring number is：P2O5：23.5 parts, TiO2：13.6 parts, Nb2O5：53.6 parts, B2O3：1.3 parts, SiO2：0.8 part, Na2O：2.6 parts, K2O：3.7 part.
- 5. high-refraction high-dispersion phosphate optical glass according to claim 1, it is characterised in that：The optical glass folding It is 1.90~2.0 to penetrate rate, and Abbe number is 17~20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710341851.6A CN107417094A (en) | 2017-05-16 | 2017-05-16 | High-refraction high-dispersion phosphate optical glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710341851.6A CN107417094A (en) | 2017-05-16 | 2017-05-16 | High-refraction high-dispersion phosphate optical glass |
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| Publication Number | Publication Date |
|---|---|
| CN107417094A true CN107417094A (en) | 2017-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710341851.6A Pending CN107417094A (en) | 2017-05-16 | 2017-05-16 | High-refraction high-dispersion phosphate optical glass |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109399916A (en) * | 2018-12-03 | 2019-03-01 | 成都光明光电股份有限公司 | Optical glass, optical precast product, optical element and optical instrument |
| CN111253066A (en) * | 2018-12-03 | 2020-06-09 | 成都光明光电股份有限公司 | Optical glass, optical preform, optical element and optical instrument |
| CN111253063A (en) * | 2018-12-03 | 2020-06-09 | 成都光明光电股份有限公司 | Optical glass, optical preform, optical element and optical instrument |
| CN111253064A (en) * | 2018-12-03 | 2020-06-09 | 成都光明光电股份有限公司 | Optical glass, optical preform, optical element and optical instrument |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101591142A (en) * | 2009-06-25 | 2009-12-02 | 成都光明光电股份有限公司 | High-refractive and high-dispersive optical glass |
| CN101817638A (en) * | 2009-02-27 | 2010-09-01 | 株式会社小原 | Opticglass and optical element |
| CN101941797A (en) * | 2010-09-21 | 2011-01-12 | 成都光明光电股份有限公司 | Optical glass and optical element |
| CN102241478A (en) * | 2010-04-09 | 2011-11-16 | 株式会社小原 | Optical glass and method of suppressing deterioration of spectral transmittance |
| CN102249543A (en) * | 2009-02-27 | 2011-11-23 | 株式会社小原 | Optical glass and optical device |
-
2017
- 2017-05-16 CN CN201710341851.6A patent/CN107417094A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817638A (en) * | 2009-02-27 | 2010-09-01 | 株式会社小原 | Opticglass and optical element |
| CN102249543A (en) * | 2009-02-27 | 2011-11-23 | 株式会社小原 | Optical glass and optical device |
| CN101591142A (en) * | 2009-06-25 | 2009-12-02 | 成都光明光电股份有限公司 | High-refractive and high-dispersive optical glass |
| CN102241478A (en) * | 2010-04-09 | 2011-11-16 | 株式会社小原 | Optical glass and method of suppressing deterioration of spectral transmittance |
| CN101941797A (en) * | 2010-09-21 | 2011-01-12 | 成都光明光电股份有限公司 | Optical glass and optical element |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109399916A (en) * | 2018-12-03 | 2019-03-01 | 成都光明光电股份有限公司 | Optical glass, optical precast product, optical element and optical instrument |
| CN111253066A (en) * | 2018-12-03 | 2020-06-09 | 成都光明光电股份有限公司 | Optical glass, optical preform, optical element and optical instrument |
| CN111253063A (en) * | 2018-12-03 | 2020-06-09 | 成都光明光电股份有限公司 | Optical glass, optical preform, optical element and optical instrument |
| CN111253064A (en) * | 2018-12-03 | 2020-06-09 | 成都光明光电股份有限公司 | Optical glass, optical preform, optical element and optical instrument |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171201 |