CN106186668A - A kind of optical glass and preparation method, its optical element prepared - Google Patents
A kind of optical glass and preparation method, its optical element prepared Download PDFInfo
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- CN106186668A CN106186668A CN201610583433.3A CN201610583433A CN106186668A CN 106186668 A CN106186668 A CN 106186668A CN 201610583433 A CN201610583433 A CN 201610583433A CN 106186668 A CN106186668 A CN 106186668A
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- optical glass
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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
- 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
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Glass Compositions (AREA)
Abstract
The invention discloses a kind of optical glass and preparation method, its optical element prepared.This optical glass comprises following components in parts by weight: B2O3 25 35 parts；La2O3 20 30 parts；CaO 5 15 parts；SiO2 8 10 parts；Y2O3 8 10 parts；ZnO 8 10 parts；ZrO2 28 parts；Li2O 46 parts；SrO 0.5 1.5 parts；WO30.2 1 parts；Gd2O30.5 1 parts；SnO20.0005 0.002 parts.By introducing rare earth oxide when formula designs in the present invention, reduce the softening temperature of material, increase stability, glass.The optical glass optical constant prepared is stable, and concordance is good, and has good die mould performance and good processing characteristics, and the optical element suppressed can reach to exempt from the surface quality of processing.
Description
Technical field
The present invention relates to glass preparation field, be specially a kind of optical glass and preparation method thereof and use this optics
The optical element that glass preparation obtains.
Background technology
Optical glass is mainly used as the lens in optical system and prism, for the transmission of picture, is the core of optical instrument
Part.
In recent years in design of Optical System, people generally promote digital camera, video camera, hands with glass of high refractive index
Machine camera to miniaturization, ultrathin development and the realization of wide angle.And when manufacturing and designing special optical system, be more desirable to
Post-production amount is reduced to minimum.And post-production amount to be reduced, it is necessary for when optical element is suppressed controlling well deflection,
Make deflection reduce even without deflection, make the optical element suppressed well have surface quality, reach to exempt from processing
Degree.
Summary of the invention
The technical problem to be solved is to provide a kind of optical glass, and optical constant is stable, and concordance is good, and tool
Having good die mould performance and good processing characteristics, the optical element suppressed can reach to exempt from the surface quality of processing.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is: a kind of optical glass, comprises with weight portion
The following components of meter:
B2O325-35 part；
La2O320-30 part；
CaO 5-15 part；
SiO28-10 part；
Y2O35-10 part；
ZnO 5-10 part；
ZrO22-8 part；
Li2O 4-6 part；
SrO 0.5-1.5 part；
WO30.2-1 part；
Gd2O30.5-1 part；
SnO20.0005-0.002 part；
Sb2O30.001-0.05 part.
In order to make the optical element suppressed well have surface quality, need when optical glass material formula designs
Reduce the coefficient of expansion or reduce softening temperature, and reducing the coefficient of expansion is that comparison is difficult；By when formula designs in the present invention
Introduce rare earth oxide, reduce the softening temperature of material, increase stability, glass.
Preferably in scheme, comprise following components in parts by weight:
B2O332.5 parts；
La2O323.24 parts；
CaO 9 parts；
SiO29.39 part；
Y2O37.75 part；
ZnO 7.6 parts；
ZrO25 parts；
Li2O 5.1 parts；
SrO 1 part；
WO30.56 part；
Gd2O30.75 part；
SnO20.001 part；
Sb2O30.003 part.
Further, described B2O3Introduce as boric acid；CaO introduces as calcium carbonate；Li2O is carbonic acid respectively
The form of lithium introduces.
Further, described SrO is with nitrate Sr(NO3)2Form introduces；WO3Introduce with wolframic acid form；Due to nitric acid
Strontium pyrolytic discharges oxygen, nitric oxide and nitrogen dioxide, plays high temperature clarification；The chemistry of glass can be increased simultaneously
Stability and mechanical strength.
Further, Sr(NO in the formula of this optical glass3)2Addition be Sb2O3300～350 times.Add nitre
The purpose of acid strontium is to adjust the oxygen content in glass, discharges oxygen during because of strontium nitrate pyrolytic, coordinates clarifier Sb2O3
Helpful clarification.
Due to ZrO2It is intermidate oxide, the viscosity of glass, hardness, elasticity, refractive index, chemical stability can be improved, fall
The thermal coefficient of expansion of low glass.Further, described ZrO2 content in this Optical Glass Materials formula is not more than 5.5%, no
Then can cause crystallize.
SiO2It is network former, forms irregular contiguous network with the tetrahedral structural component of silicon-oxygen, become
The skeleton of glass.SiO in glass2Can reduce the thermal coefficient of expansion of glass, improve the heat stability of glass, chemical stability,
Thermostability, hardness, mechanical strength；
B2O3Also it is the formation oxide of glass, with boron-oxygen tetrahedron as structural component, collectively constitutes knot with silicon-oxygen tetrahedron
Network forming network.Glass introduces B2O3The thermal coefficient of expansion of glass can be reduced, improve the heat stability of glass, chemical stability, improve
The mechanical performance of glass.
It is stabilizer that CaO to act on as network outer body group in glass, i.e. increases chemical stability and the machine of glass
Tool intensity.
La2O3Increase the water-resistance of glass, the refractive index of glass can be improved, reduce glass dispersion.
Y2O3、SrO、WO3、Gd2O3、SnO2The refractive index of glass and chemical stability is improved Deng as intermediate oxide,
Reduce the softening temperature of glass simultaneously.
Testing according to the method for GB/T7962.1-2010, the refractive index of this optical glass is 1.69400 ± 50 × 10-5, color
Dissipate is 0.01306 ± 3 × 10-5, Abbe number is 53.05 ± 0.2.Test according to the method for GB/T7962.16-2010, this optics
The transition temperature of glass 520-530 DEG C；Speed hang down temperature 555-565 DEG C；Annealing temperature 485-490 DEG C；Coefficient of expansion α20℃/300℃
(10-7/ K) it is 95.
The method that the invention still further relates to prepare described optical glass, concretely comprises the following steps:
Weigh each raw material by proportioning, with V-arrangement batch mixer by after each component raw material mix homogeneously, add electric mixture manufacturing line and melt
Change, clarification, homogenizing, use stream material mode molding, after annealing, i.e. obtain described optical glass.
The invention still further relates to the optical element using described optical glass to prepare, such as lens, plane mirror etc..
Using the glass that above-mentioned formula is made, detect according to the method for GB/T7962.8-2010, its bubble rank reaches
The A00 that GB/T903-87 standard specifies；Testing according to the method for GB/T7962.9-2010, its absorption coefficient of light reaches GB/
0 grade of T903-87 standard regulation；Testing according to the method for GB/T7962.2-2010, its optical homogeneity reaches GB/T903-87
1 grade of standard regulation；Testing according to the method for GB/T7962.19-2010, its relative abrasive hardness FA is 138.
The optical glass that the present invention provides, its optical constant all can meet the requirement of GB/903-87.
Detailed description of the invention
Below in conjunction with embodiment, it is further elucidated with the present invention.These embodiments be interpreted as being merely to illustrate the present invention and
It is not intended to limit the scope of the invention.After having read the content that the present invention records, those skilled in the art are permissible
Making various changes or modifications the present invention, these equivalence changes and modification fall into the model that claims of the present invention is limited equally
Enclose.
The present invention lists 3 embodiments, and concrete raw material is shown in Table 1, and wherein unit is g, each ginseng of prepared optical glass
Number is also shown in Table 1.
Table 1
Wherein, B2O3With boric acid (H3BO3) form introducing；CaO is with calcium carbonate (CaCO3) form introduce；Li2O is carbonic acid respectively
Lithium (Li2CO3) form introduce；SrO is with nitrate (Sr(NO3)2)；WO3With wolframic acid (H2WO4) form introduces, and optical glass
Formula in Sr(NO3)2Addition be Sb2O3300～350 times.
The method of the optical glass described in preparation, weighs H with the electronic scale of precision 20g2WO4, Sr(NO3)2、Gd2O3With
Sb2O3 ；SiO is first weighed with the electronic scale of precision 50g2, then weigh other raw materials successively；With V-arrangement batch mixer by each component raw material
After mix homogeneously, add the fusing of electric mixture manufacturing line, clarification, homogenizing, use stream material mode molding, after annealing, i.e. obtain described light
Learn glass.
The optical glass obtained by above-described embodiment meets the related request of GB/903-87.
Claims (10)
1. an optical glass, it is characterised in that comprise following components in parts by weight:
B2O325-35 part；
La2O320-30 part；
CaO 5-15 part；
SiO28-10 part；
Y2O35-10 part；
ZnO 5-10 part；
ZrO22-8 part；
Li2O 4-6 part；
SrO 0.5-1.5 part；
WO30.2-1 part；
Gd2O30.5-1 part；
SnO20.0005-0.002 part；
Sb2O30.001-0.05 part.
Optical glass the most according to claim 1, it is characterised in that: comprise following components in parts by weight:
B2O332.5 parts；
La2O323.24 parts；
CaO 9 parts；
SiO29.39 part；
Y2O37.75 part；
ZnO 7.6 parts；
ZrO25 parts；
Li2O 5.1 parts；
SrO 1 part；
WO30.56 part；
Gd2O30.75 part；
SnO20.001 part；
Sb2O30.003 part.
Optical glass the most according to claim 1, it is characterised in that: described B2O3Introduce as boric acid；CaO is with carbon
The form of acid calcium introduces；Li2O is that the form of lithium carbonate introduces respectively.
Optical glass the most according to claim 1, it is characterised in that: described SrO is with nitrate Sr(NO3)2Form is drawn
Enter；WO3Introduce with wolframic acid form.
Optical glass the most according to claim 4, it is characterised in that: Sr(NO in the formula of this optical glass3)2Addition
Amount is Sb2O3300～350 times.
Optical glass the most according to claim 1, it is characterised in that: described ZrO2 is in this Optical Glass Materials formula
Content is not more than 5.5%.
7. according to the optical glass described in claim 1-6 any one, it is characterised in that: the refractive index of described optical glass is
1.69350 ~ 1.69450, dispersion is 0.01303 ~ 0.01309, and Abbe number is 52.85 ~ 53.25.
8. according to the optical glass described in claim 1-6 any one, it is characterised in that: the transition temperature of described optical glass
520-530℃；Speed hang down temperature 555-565 DEG C；Annealing temperature 485-490 DEG C；Coefficient of expansion α20℃/300℃(10-7/ K) it is 95.
9. the method for preparation optical glass described in claim 1-8 any one, it is characterised in that:
Weigh each raw material by proportioning, with V-arrangement batch mixer by after each component raw material mix homogeneously, add electric mixture manufacturing line and melt
Change, clarification, homogenizing, use stream material mode molding, after annealing, i.e. obtain described optical glass.
10. use optical element prepared by the optical glass described in claim 1-8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610583433.3A CN106186668A (en) | 2016-07-22 | 2016-07-22 | A kind of optical glass and preparation method, its optical element prepared |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610583433.3A CN106186668A (en) | 2016-07-22 | 2016-07-22 | A kind of optical glass and preparation method, its optical element prepared |
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|---|---|
| CN106186668A true CN106186668A (en) | 2016-12-07 |
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| CN201610583433.3A Pending CN106186668A (en) | 2016-07-22 | 2016-07-22 | A kind of optical glass and preparation method, its optical element prepared |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107010826A (en) * | 2017-05-15 | 2017-08-04 | 湖北戈碧迦光电科技股份有限公司 | Environmentally friendly lanthanide flint optical glass and preparation method thereof |
| CN107010827A (en) * | 2017-05-15 | 2017-08-04 | 湖北戈碧迦光电科技股份有限公司 | Environment protection dense-crown optical glass and preparation method thereof |
| CN107098579A (en) * | 2017-05-15 | 2017-08-29 | 湖北戈碧迦光电科技股份有限公司 | Environmentally friendly lanthanum crown optical glass and preparation method thereof |
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| JP2004175632A (en) * | 2002-11-28 | 2004-06-24 | Hikari Glass Co Ltd | Optical glass |
| CN1618752A (en) * | 2003-11-17 | 2005-05-25 | 株式会社小原 | Optical glass |
| CN101163648A (en) * | 2005-04-22 | 2008-04-16 | 株式会社小原 | Glass composition |
| CN101209895A (en) * | 2007-12-25 | 2008-07-02 | 成都光明光电股份有限公司 | Precision optical glass for die pressing |
| CN101282915A (en) * | 2005-10-11 | 2008-10-08 | 株式会社小原 | Optical glass |
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2016
- 2016-07-22 CN CN201610583433.3A patent/CN106186668A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004175632A (en) * | 2002-11-28 | 2004-06-24 | Hikari Glass Co Ltd | Optical glass |
| CN1618752A (en) * | 2003-11-17 | 2005-05-25 | 株式会社小原 | Optical glass |
| CN101163648A (en) * | 2005-04-22 | 2008-04-16 | 株式会社小原 | Glass composition |
| CN101282915A (en) * | 2005-10-11 | 2008-10-08 | 株式会社小原 | Optical glass |
| CN101209895A (en) * | 2007-12-25 | 2008-07-02 | 成都光明光电股份有限公司 | Precision optical glass for die pressing |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107010826A (en) * | 2017-05-15 | 2017-08-04 | 湖北戈碧迦光电科技股份有限公司 | Environmentally friendly lanthanide flint optical glass and preparation method thereof |
| CN107010827A (en) * | 2017-05-15 | 2017-08-04 | 湖北戈碧迦光电科技股份有限公司 | Environment protection dense-crown optical glass and preparation method thereof |
| CN107098579A (en) * | 2017-05-15 | 2017-08-29 | 湖北戈碧迦光电科技股份有限公司 | Environmentally friendly lanthanum crown optical glass and preparation method thereof |
| CN107010826B (en) * | 2017-05-15 | 2020-06-26 | 湖北戈碧迦光电科技股份有限公司 | Environment-friendly lanthanum flint optical glass and preparation method thereof |
| CN107098579B (en) * | 2017-05-15 | 2020-07-17 | 湖北戈碧迦光电科技股份有限公司 | Environment-friendly lanthanum crown optical glass and preparation method thereof |
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