CN107162414A - A kind of optical glass - Google Patents
A kind of optical glass Download PDFInfo
- Publication number
- CN107162414A CN107162414A CN201710307126.7A CN201710307126A CN107162414A CN 107162414 A CN107162414 A CN 107162414A CN 201710307126 A CN201710307126 A CN 201710307126A CN 107162414 A CN107162414 A CN 107162414A
- Authority
- CN
- China
- Prior art keywords
- content
- optical glass
- quartz sand
- boric acid
- weight ratio
- 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.)
- Granted
Links
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
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
The invention discloses a kind of optical glass, by weight percentage, it includes following component：25~30% quartz sands, 37~42% barium carbonates, 0.07~0.09% antimony oxide, 5~6% lanthanum sesquioxides, 0.5~0.7% zirconium dioxide, 2~3% aluminium hydroxides, 2~3% barium nitrates, 20~25% boric acid.The present invention uses a variety of conventional components, and adjusts the content between different component, which ensure that material cost is reduced on the premise of with preferred optical performance, while it greatly improves the stability for the optical glass to be formed.
Description
Technical field
The present invention relates to optical glass technology, more particularly, to the optical glass of a kind of low cost, high stability.
Background technology
Optical glass is the glass material for manufacturing the lens of optical instrument or mechanical system, prism, speculum, window etc.
Material, it includes colouless optical glass, color optical glass, anti-radiation optical glass, non-browning glass and optical quartz glass etc.
Multiple species.Optical glass has the high homogeneity in the transparency, chemistry and the physics (structure and performance) of height, has
Specific and accurate optical constant.At present, it is broadly divided into silicate, borate, phosphate, fluoride and chalcogenide compound etc.
Several series, and constantly widened with the application field of optical glass, its kind is constantly expanding, and it almost includes week in constituting
All elements in phase table.
In practical application, optical property and stability in order to ensure optical glass, generally require and add appropriate hold high
Metal oxide containing precious metals, it significantly increases cost.
The content of the invention
It is an object of the invention to overcome above-mentioned technical deficiency, a kind of optical glass is proposed, optics in the prior art is solved
The technical problem that glass cost is high, stability is low.
To reach above-mentioned technical purpose, technical scheme provides a kind of optical glass, by weight percentage, its
Including following component：25~30% quartz sands, 37~42% barium carbonates, 0.07~0.09% antimony oxide, 5~6% 3 oxygen
Change two lanthanums, 0.5~0.7% zirconium dioxide, 2~3% aluminium hydroxides, 2~3% barium nitrates, 20~25% boric acid.
It is preferred that, by weight percentage, it includes following component：27.68% quartz sand, 39.09% barium carbonate,
0.08% antimony oxide, 5.6% lanthanum sesquioxide, 0.6% zirconium dioxide, 2% aluminium hydroxide, 2% barium nitrate, 22.95%
Boric acid.
It is preferred that, the weight ratio of the content of the quartz sand and the content of boric acid is 1.2~1.3:Between 1.
It is preferred that, the weight ratio of the content of quartz sand and the content of boric acid is 1.21:1.
It is preferred that, the content of the quartz sand is 0.9~1 with the weight ratio of lanthanum sesquioxide and the total content of boric acid:1.
It is preferred that, the content of the quartz sand is 0.97 with the weight ratio of lanthanum sesquioxide and the total content of boric acid:1.
It is preferred that, the weight ratio of the content of the zirconium dioxide and the content of aluminium hydroxide is 0.2~0.35:1.
It is preferred that, the weight ratio of the content of the zirconium dioxide and the content of aluminium hydroxide is 0.3:1.
It is preferred that, the weight ratio of the total content of the quartz sand and boric acid and the content of barium carbonate is 1.1~1.4:1.
It is preferred that, the weight ratio of the total content of the quartz sand and boric acid and the content of barium carbonate is 1.39:1.
Compared with prior art, the present invention uses a variety of conventional components, and adjusts the content between different component, and it is protected
Demonstrate,prove and reduced material cost on the premise of with preferred optical performance, while it greatly improves the optical glass to be formed
Stability.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
The embodiment provides a kind of optical glass, by weight percentage, it includes following component：25~
30% quartz sand, 37~42% barium carbonates, 0.07~0.09% antimony oxide, 5~6% lanthanum sesquioxides, 0.5~0.7%
Zirconium dioxide, 2~3% aluminium hydroxides, 2~3% barium nitrates, 20~25% boric acid.
The preparation method of the present embodiment optical glass can be used well known to a person skilled in the art method, for example：By more than
The all components for stating the frit of percentage by weight meter are uniformly mixed, and are heated as at 1300 DEG C~1350 DEG C melting
Body, the molten glass fully clarified at 1380 DEG C~1400 DEG C, being homogenized flows out from fistulae, flows into cold in mould
But it is, compressing.
Quartz sand has the effect for the heat endurance for improving optical glass, it is possible to when increasing glass melting and being molded
Viscosity.If but its too high levels, glass is difficult to melt, and can not obtain the refractive index required for the present invention, it is too low then not
Beneficial to coordinating between other components to ensure the crystallization property of glass, therefore the content of the present embodiment quartz sand is 25~30%.
Boric acid is decomposed to form boron oxide and water in heating process, and boron oxide has raising glass fusible and reduces glass
The effect of state transition temperature.But, boron oxide, which crosses at most chemical durability of glass, to be declined, and refractive index declines, it is impossible to full
The optical property of sufficient demand, and the stability for crossing optical glass at least is relatively low, therefore the present embodiment boric acid content is 20~25%.
And in order to ensure that the optical glass prepared has more preferably performance, the content and boric acid of quartz sand described in the present embodiment
Content weight ratio be 1.2~1.3:1, it is in the crystallization property for improving glass, the liquidus temperature that reduces glass
Under the premise of, the meltability of optical glass is improved, and quartz sand and boric acid coordinate according to the above ratio can preferably improve optics
The stability of glass, it is ensured that optical glass has higher refractive index.Wherein, the content of the present embodiment quartz sand and boric acid contain
The weight ratio of amount is preferably arranged to 1.21:1.
Lanthanum sesquioxide is the active ingredient for improving optical glass refractive index and increasing Abbe number, and the present embodiment is by its content
5~6% are set to, it can ensure that optical glass has suitable refractive index, while can reduce viscous by setting proportioning with quartz sand
Degree, improves the homogenieity of optical glass.Specifically, the content of quartz sand described in the present embodiment and lanthanum sesquioxide and boric acid is total
The weight of content than is preferably set to 0.9~1:1, because the content for increasing lanthanum sesquioxide easily increases viscosity, cause optics
Glass difficult forming, although the amount of increase quartz sand can reduce viscosity, but quartz sand amount is crossed and is at most difficult to melt, and it is easily reduced
The homogenieity of optical glass, therefore while the present embodiment adjustment quartz sand and boric acid content, the content of lanthanum sesquioxide is have adjusted,
On the premise of it can ensure with preferable optical property, its heat endurance is improved.Specifically, quartz sand described in the present embodiment contains
Amount and the weight ratio of lanthanum sesquioxide and the total content of boric acid may be configured as 0.97:1, its maximizing improves the heat of optical glass
Stability and its optical property.
The weight ratio of the content of zirconium dioxide described in the present embodiment and the content of aluminium hydroxide may be configured as 0.2~0.35:
1, on the one hand it can add appropriate zirconium dioxide to improve the optical constant of optical glass, and a certain degree of raising refractive index and
Dispersion, on the other hand improves the stability of optical glass by adjusting the content ratio of zirconium dioxide and aluminium hydroxide, increase
The viscosity of optical glass, improves devitrification resistance, while its maximizing improves the crystallization property of optical glass.Wherein, this implementation
The weight ratio of the content of the example zirconium dioxide and the content of aluminium hydroxide is preferably arranged to 0.3:1.
Barium carbonate can be decomposed into barium monoxide and carbon dioxide at high temperature, and its gas decomposed can improve deaeration work(
Can, barium monoxide can improve weatherability, improve refractive index, and with can reduce glass liquidus temperature, improve operability
Effect, but it is easily caused optical glass surface and occurs to go bad, therefore the total content and carbon of quartz sand described in the present embodiment and boric acid
The weight ratio of the content of sour barium is 1.1~1.4:1, it can be conducive to the stability on optical glass structure, and adjust quartz sand
Ratio between the total content of boric acid and the content of barium carbonate, then can maximize on the premise of devitrification of glass performance is ensured
The stability of optical glass structure, it is to avoid optical glass surface occurs rotten.Wherein, quartz sand described in the present embodiment and boric acid
The weight ratio of the content of total content and barium carbonate is preferably arranged to 1.39:1, it can more preferably improve the stability of optical glass,
Extend its service life.
Experimental example
In order to illustrate that optical glass manufactured in the present embodiment has more preferable optical property and stability, the present embodiment is used
Powder method carries out chemical stability test, and method of testing is as follows：
1st, by mass percent preparation component 10 groups of optical glass of preparation of table 1, the corresponding embodiment 1 of 10 groups of optical glass~
10, and buy 2 groups of comparative example optical glass of in the market identical optical performance；
Table 1
Wherein, in the present embodiment 1, the weight ratio of the content of quartz sand and the content of boric acid is 1.21:1st, quartz sand contains
Amount and the weight ratio of lanthanum sesquioxide and the total content of boric acid may be configured as 0.97:1st, the content of zirconium dioxide and aluminium hydroxide
The weight ratio of content is 0.3:1st, the weight ratio of the content of the total content and barium carbonate of quartz sand and boric acid is 1.39:1；This implementation
In example 2, the weight ratio of the content of quartz sand and the content of boric acid is 1.2:1；In the present embodiment 3, the content and boric acid of quartz sand
Content weight ratio be 1.3:1；In the present embodiment 4, content and the lanthanum sesquioxide and the weight of the total content of boric acid of quartz sand
Amount is than being 1:1；In the present embodiment 5, the content of quartz sand is 0.9 with the weight ratio of lanthanum sesquioxide and the total content of boric acid:1；
In the present embodiment 6, the weight ratio of the content of zirconium dioxide and the content of aluminium hydroxide is 0.2:1；In the present embodiment 7, titanium dioxide
The weight ratio of the content of zirconium and the content of aluminium hydroxide is 0.35:1；In the present embodiment 8, the total content and carbon of quartz sand and boric acid
The weight ratio of the content of sour barium is 1.1:1；In the present embodiment 9, the weight of the content of the total content and barium carbonate of quartz sand and boric acid
Amount is than being 1.4:1.
2nd, above-described embodiment 1~10 is distinguished using powder method and comparative example 1~2 carries out chemical stability test；
Specifically, the optical glass of above-mentioned example to be tested is crushed, the optical glass that particle diameter is 0.25~0.5mm is taken
Grain, is washed with absolute ethyl alcohol, is dried in an oven with 100 DEG C or so of temperature, stand-by.
The spheric granules of above-mentioned example to be tested is respectively taken into 2g, 100ml distilled water is separately added into, then uses in sealed states
The thermostat water bath of boiling is heated 60 minutes, and room temperature is then quickly cooled in sealed states, takes wherein 25ml solution addition
Two drop methyl red solution, folding 0.01N hydrochloric acid standard solutions are titrated to blush, record the consumption of hydrochloric acid standard solution, tool
Body is shown in Table 2.
Table 2
There is identical optical performance on optical glass relative market prepared by table 1, table 2, the present embodiment 1~10
Optical glass has more preferable chemical stability and lower cost, and when using the component of different ratio, its stability tool
Have certain fluctuation, i.e., the optical glass prepared by the component of setting mass percent has more preferably stability, at the same its into
Significant change occurs for this difference.
The embodiment of present invention described above, is not intended to limit the scope of the present invention..Any basis
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 (10)
1. a kind of optical glass, it is characterised in that by weight percentage, it includes following component：25~30% quartz sands, 37
~42% barium carbonate, 0.07~0.09% antimony oxide, 5~6% lanthanum sesquioxides, 0.5~0.7% zirconium dioxide, 2~
3% aluminium hydroxide, 2~3% barium nitrates, 20~25% boric acid.
2. optical glass according to claim 1, it is characterised in that by weight percentage, it includes following component：
27.68% quartz sand, 39.09% barium carbonate, 0.08% antimony oxide, 5.6% lanthanum sesquioxide, 0.6% zirconium dioxide,
2% aluminium hydroxide, 2% barium nitrate, 22.95% boric acid.
3. optical glass according to claim 1, it is characterised in that the weight of the content of the quartz sand and the content of boric acid
Amount is than being 1.2~1.3:Between 1.
4. optical glass according to claim 3, it is characterised in that the weight ratio of the content of quartz sand and the content of boric acid
For 1.21:1.
5. optical glass according to claim 1, it is characterised in that the content of the quartz sand and lanthanum sesquioxide and boron
The weight ratio of the total content of acid is 0.9~1:1.
6. optical glass according to claim 5, it is characterised in that the content of the quartz sand and lanthanum sesquioxide and boron
The weight ratio of the total content of acid is 0.97:1.
7. optical glass according to claim 6, it is characterised in that the content of the zirconium dioxide and containing for aluminium hydroxide
The weight ratio of amount is 0.2~0.35:1.
8. optical glass according to claim 7, it is characterised in that the content of the zirconium dioxide and containing for aluminium hydroxide
The weight ratio of amount is 0.3:1.
9. optical glass according to claim 1, it is characterised in that the total content and barium carbonate of the quartz sand and boric acid
Content weight ratio be 1.1~1.4:1.
10. optical glass according to claim 9, it is characterised in that the total content and carbonic acid of the quartz sand and boric acid
The weight ratio of the content of barium is 1.39:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710307126.7A CN107162414B (en) | 2017-05-04 | 2017-05-04 | A kind of optical glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710307126.7A CN107162414B (en) | 2017-05-04 | 2017-05-04 | A kind of optical glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107162414A true CN107162414A (en) | 2017-09-15 |
| CN107162414B CN107162414B (en) | 2019-10-29 |
Family
ID=59812536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710307126.7A Active CN107162414B (en) | 2017-05-04 | 2017-05-04 | A kind of optical glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107162414B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02188444A (en) * | 1989-01-13 | 1990-07-24 | Nakashima:Kk | Material for thermally spraying glass |
| CN101445322A (en) * | 2008-12-30 | 2009-06-03 | 成都光明光电股份有限公司 | Dense crown optical glass |
| CN102674686A (en) * | 2012-04-23 | 2012-09-19 | 湖北新华光信息材料有限公司 | Optical glass |
| US20150175474A1 (en) * | 2011-01-25 | 2015-06-25 | Corning Incorporated | Glass composition having high thermal and chemical stability |
| CN105884192A (en) * | 2016-04-05 | 2016-08-24 | 湖北戈碧迦光电科技股份有限公司 | Special glass and preparation method and application thereof |
-
2017
- 2017-05-04 CN CN201710307126.7A patent/CN107162414B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02188444A (en) * | 1989-01-13 | 1990-07-24 | Nakashima:Kk | Material for thermally spraying glass |
| CN101445322A (en) * | 2008-12-30 | 2009-06-03 | 成都光明光电股份有限公司 | Dense crown optical glass |
| US20150175474A1 (en) * | 2011-01-25 | 2015-06-25 | Corning Incorporated | Glass composition having high thermal and chemical stability |
| CN102674686A (en) * | 2012-04-23 | 2012-09-19 | 湖北新华光信息材料有限公司 | Optical glass |
| CN105884192A (en) * | 2016-04-05 | 2016-08-24 | 湖北戈碧迦光电科技股份有限公司 | Special glass and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107162414B (en) | 2019-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9416047B2 (en) | Optical glass, glass material for press molding, and optical element | |
| CN101289276B (en) | High-refraction and high- dispersion optical glass and method of manufacture | |
| JP5867507B2 (en) | Optical glass | |
| CN106116143B (en) | Optical glass | |
| JP2006016293A (en) | Optical glass | |
| JP5825562B2 (en) | Optical glass for mold press molding | |
| CN109970338A (en) | Optical glass, gas preform, optical element and optical instrument | |
| CN110128005A (en) | Optical glass | |
| JP2015533773A (en) | Optical glass | |
| CN101333072A (en) | High-refractivity lanthanide optical glass NLaSF010 and method for manufacturing same | |
| CN104108872B (en) | Environmental protection optical glass, gas preform, optical element and optical instrument | |
| WO2014123200A1 (en) | Optical glass, hot-formed article and method for manufacturing same, and optical element and method for manufacturing same | |
| CN106032308B (en) | Environmental protection optical glass and optical element | |
| CN107686237A (en) | High-refractive and high-dispersive optical glass, optical element and optical instrument | |
| TWI332490B (en) | ||
| JP5987364B2 (en) | Optical glass | |
| CN107162414A (en) | A kind of optical glass | |
| US8039411B2 (en) | Optical glass | |
| US20140024519A1 (en) | Optical glass, preform for press-molding and optical element formed from preform | |
| CN107162415B (en) | A kind of optical glass | |
| CN107098583B (en) | A kind of optical glass | |
| CN107417095A (en) | H ZBaF class optical glass and preparation method thereof | |
| CN106396374A (en) | Optical glass and optical element | |
| JP2014076941A (en) | Optical glass | |
| JP2013256438A (en) | Optical glass |
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 |