CN106396374A - Optical glass and optical element - Google Patents
Optical glass and optical element Download PDFInfo
- Publication number
- CN106396374A CN106396374A CN201610802288.3A CN201610802288A CN106396374A CN 106396374 A CN106396374 A CN 106396374A CN 201610802288 A CN201610802288 A CN 201610802288A CN 106396374 A CN106396374 A CN 106396374A
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- Prior art keywords
- glass
- optical glass
- optical
- bao
- percent
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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
- C03C3/12—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
- C03C3/04—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
- C03C3/066—Glass compositions containing silica with less than 40% silica by weight containing boron containing zinc
-
- 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
- C03C4/0092—Compositions for glass with special properties for glass with improved high visible transmittance, e.g. extra-clear glass
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
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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)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Glass Compositions (AREA)
Abstract
The invention provides phosphate optical glass which is high in refraction and chromatic dispersion, low in relative partial dispersion Pg, F and high in transmittance, and an optical element. The optical glass is prepared from the following components in percentage by weight: 16.5 to 33.5 percent of P2O5, 25 to 60 percent of Nb2O5, 15 to 35 percent of BaO, 1 to 13.5 percent of R2O which comprises one or two of Na2O and K2O, 0 to 10 percent of ZnO, 0 to 5 percent of B2O3 and 0 to 5 percent of Ta2O5. By reasonable component design, the phosphate optical glass providedby the invention is high in refraction and chromatic dispersion, low in relative partial dispersion Pg, F, high in transmittance and good in chemical stability, and is applicable to high-quality optical element.
Description
Technical field
The present invention relates to it is 1.81 that a kind of high-refractive and high-dispersive optical glass, more particularly to one kind have refractive index (nd)
～1.89, Abbe number (ν d) is 19～29, and relative partial dispersion Pg, F are little, and transmitance is high and the good phosphate light of chemical stability
Learn glass and optical element.
Background technology
High-refractive and high-dispersive optical glass is very important part in optical instrument and photovoltaic, in recent years
With being widely current of the photovoltaic such as smart mobile phone and slr camera, the performance for such phosphate optical glass proposes
Higher requirement, that is, reduce Pg, F, improves transmitance, preferably aberration to be improved, thus improving optics further
The image quality of lens.
Japan Patent JP54-112915 discloses a kind of optical glass of high-refraction high-dispersion, and it adopts P2O5-Nb2O5-
R2O-ZnO system, this glass melting performance is bad, easily produces the field trashes such as crystallization particle, and the easy devitrification of glass, and glass is steady
Qualitative poor.Chinese patent CN201010291542, it adopts P2O5-Nb2O5-BaO-TiO2System, contains in glass system
TiO2, this not only causes the transmitance of glass to be deteriorated, and makes the Pg of glass, and F is higher.Chinese patent CN1099388 (C) is open
Optical glass adopt SiO2-B2O3-Nb2O5-ZrO2-Na2O system, the dispersion of this negative abnormal dispersion glass is relatively low, but will
Accurately revising aberration then needs high dispersion and Pg, and the relatively low glass of F is it is clear that this glass is undesirable.
Content of the invention
The technical problem to be solved is to provide a kind of high-refraction high-dispersion, relative partial dispersion Pg, and F is little and saturating
The high phosphate optical glass of rate of crossing and optical element.
The present invention solves technical problem and be employed technical scheme comprise that：Optical glass, its percentage by weight composition contains：
P2O5：16.5～33.5%；Nb2O5：25～60%；BaO：15～35%；R2O：1～13.5%, described R2O includes Na2O、K2O
One of or two kinds；ZnO：0～10%；B2O3：0～5%；Ta2O5：0～5%.
Further, also contain：SiO2：0～5%；WO3：0～10%；RO：0～15%, described RO include MgO, SrO,
One or more of CaO.
Optical glass, its percentage by weight consists of：P2O5：16.5～33.5%；Nb2O5：25～60%；BaO：15～
35%；ZnO：0～10%；B2O3：0～5%；Ta2O5：0～5%；SiO2：0～5%；WO3：0～10%；R2O：1～
13.5%, described R2O includes Na2O、K2One of O or two kinds；RO：0～15%, described RO is included in MgO, SrO, CaO
One or more.
Further, wherein, P2O5：17～30%；And/or Nb2O5：30～55%；And/or BaO：16～31%；With/
Or R2O：1.5～11%；And/or ZnO：0～8%；And/or B2O3：0～3%；And/or Ta2O5：0～3%；And/or SiO2：0
～4%；And/or WO3：0～8%；And/or RO：0～12%.
Further, wherein, P2O5：17～25%；And/or Nb2O5：30～50%；And/or BaO：20～30%；With/
Or ZnO：0.5～6%；And/or R2O：2～8%.
Further, (R2O+B2O3)/BaO：0.001-0.399.
Further, (R2O+B2O3)/BaO：0.005-0.37.
Further, (R2O+B2O3)/BaO：0.1-0.35.
Further, described optical glass refractive index is 1.81～1.89, and Abbe number is 19～29, and transmittance reaches 70%
When corresponding wavelength X 70 in below 430nm.
Further, the Pg of described optical glass, F are：0.5957～0.6210.
Optical element, is made using above-mentioned optical glass.
The invention has the beneficial effects as follows：Designed by rational component so that phosphate optical glass of the present invention has height
Refraction high-dispersion, relative partial dispersion Pg, F are little, and transmitance is high and chemical stability is good it is adaptable to high-quality optical element.
Specific embodiment
Component contained by optical glass of the present invention will be described in detail belows, these components are all according to percentage by weight
To represent.
P2O5It is that glass generates body, stabilization can be promoted to be formed, the melt temperature of glass can be reduced well, and
Glass can be made to have higher transmitance in visible region.If P2O5Content be less than 16.5%, then do not reach above-mentioned effect
Really；But if P2O5Content be higher than 33.5%, the easy devitrification of glass, and easy crystallization.Therefore, P2O5Content be 16.5
～33.5%, preferably 17～30%, more preferably 17～25%.
Nb2O5It is to realize the highly useful composition of glass high-refraction high-dispersion, glass can be made to have a low Pg, F and high
Transmitance, also can improve the chemical stability of glass.If Nb2O5Content be less than 25%, the refractive index of glass can not meet will
Ask；But if Nb2O5Content be higher than 60%, the easy devitrification of glass, Pg, F can become big on the contrary.Therefore, Nb2O5Content be 25
～60%, preferably 30～55%, more preferably 30～50%.
BaO is to realize the more effective and more cheap component of glass high index of refraction, can also improve the stability of glass simultaneously.
If its content is less than 15%, the effect above is inconspicuous；If content is more than 35%, the transition temperature of glass can be made higher, glass
The density of glass increases.Therefore, the content of BaO is 15～35%, preferably 16～31%, more preferably 20～30%.
R2O is Na2O、K2One of O or two kinds of components, are preferable glass fluxing component, can promote stabilization shape
Become, can be effectively reduced the transition temperature of glass, appropriate R2O is obtained in that the preferable optical glass of uniformity.If R2O's
Total content is less than 1%, does not have the effect fluxed, glass high temperature viscosity may be larger；But if R2The total content of O is higher than
13.5%, the chemical stability of optical glass can be deteriorated, and refractive index and dispersion do not reach required scope, and glass is easily analysed
Brilliant.Therefore, R2The content of O is 1～13.5%, preferably 1.5～11%, more preferably 2～8%.
B2O3It is also that a kind of optical glass network generates body component, have preferable fluxing action, but when its content is more than 5%
When, the chemical stability of glass can be deteriorated.Therefore, B2O3Content be 0～5%, preferably 0～3%.A large amount of by inventor
Research finds, as (R2O+B2O3The ratio of)/BaO is 0.001～0.399, preferably 0.005～0.37, more preferably
When 0.1～0.35, glass has excellent transmitance.
ZnO can effectively adjust the optical constant of glass, prevents glass devitrification.When its content is higher than 10%, glass
Dispersion increases, and tendency towards devitrification increases, and the high temperature viscosity of glass diminishes simultaneously, brings very big difficulty to the shaping of glass.Therefore,
The content of ZnO is 0～10%, preferably 0～8%, more preferably 0.5～6%.
Ta2O5Refractive index and the Abbe number of glass can be adjusted, reduce Pg, F, but its price is high, introduce and excessively can lead to
Cost increase, is unfavorable for producing in a large number.Therefore, Ta2O5Content be defined to 0～5%, preferably 0～3%.
SiO2It is that a kind of optical glass network generates body component.The thawing temperature of glass if its content is more than 5%, can be improved
Degree.Therefore, SiO2Content be 0～5%, preferably 0～4%.
WO3It is also to realize the highly useful composition of glass high-refraction high-dispersion, the introducing of appropriateness can also be prevented on a small quantity simultaneously
Only glass devitrification.But when its content is more than 10%, glass coloration can be made to increase, transmitance reduces, and crystallization property also can become
Difference.Therefore, WO3Content be 0～10%, preferably 0～8%.
RO is made up of one or more of MgO, SrO, CaO, and appropriate introducing can effectively adjust the refractive index of glass
And Abbe number, but when its content is more than 15%, the devitrification resistance of glass reduces.Therefore, the content of RO is 0～15%, preferably
For 0～12%.
The optical glass that the present invention provides is made according to preparation method well known to those skilled in the art, that is,：Raw material is entered
Row fusing, clarification, stirring homogenizing, be cooled to suitable temperature shaping, you can obtain refractive index provided by the present invention be 1.81～
1.89, Abbe number is 19～29, Pg, and F is 0.5957～0.6210, and transmitance is high, the good phosphate optical of chemical stability
Glass.
The method of testing of each performance parameter of optical glass that the present invention provides is as follows：
Refractive index, Abbe number according to《GB/T 7962.1 2010 colouless optical glass method of testing refractive index and dispersion system
Number》Test.
Degree of staining (the λ of glass70/λ5), test sample thickness is 10 ± 0.1mm, two thang-kng mirror polish of sample, with dividing
Light photometer tests out transmittance and reaches corresponding wavelength X when 70%70Reach corresponding wavelength X when 5% with transmittance5.
Glass powder method water-resistant stability DWUsing the measurement of GB/T17129 testing standard.
Glass powder method acid-resistant stability DAUsing the measurement of GB/T17129 testing standard.
Relative partial dispersion Pg, F are calculated by (1) formula：
Pg, F=(ng-nF)/(nF-nC) (1)
Through above-mentioned test, the optical glass of the present invention obtaining has following performance：Refractive index (nd) be 1.81～
1.89, Abbe number is 19～29, Pg, and F is 0.5957～0.6210, and glass transmittance reaches corresponding wavelength X when 70%70?
Below 430nm.
The present invention also provides a kind of optical element, and this optical element is formed by optical glass of the present invention, so should
Optical element has all characteristics of the invention described above optical glass.The optical element that the present invention provides is suitably applied digital photograph
In the equipment such as camera, digital camera, can correcting chromatic aberration well, achievable device miniaturization, light-weighted demand.
Embodiment
In order to further appreciate that technical scheme, below in conjunction with specific embodiments, the description present invention is preferred
Embodiment.It should be noted that and be understood by, these embodiments are intended merely to be better described the feature of the present invention and excellent
Point, the claim of the not restricted present invention.
Optical glass component (in weight percent) and its corresponding property that embodiments of the invention 1～30 provide
Can be as shown in Table 1 to Table 3.By by the various oxide of optical glass, carbonate, metaphosphate in each embodiment of table 1～table 3
Weigh Deng according to its ratio, be sufficiently mixed uniformly afterwards add optical glass smelting furnace in, under suitable technological temperature through fusing,
Clarification, stirring homogenizing, be cooled to suitable temperature after, this glass melting is poured in metal die preheated in advance shaping
And anneal, just can get required optical glass.
One kind that the present invention provides has high-refraction high-dispersion, and relative partial dispersion Pg, F are little, and transmitance is high and chemistry is steady
The composition of qualitative good phosphate optical glass and respective performances are such as：Refractive index (nd), dispersion (nF-nC), Abbe number (vd),
Relative partial dispersion Pg, F, powdered waterproof stability DW, powder acid-resistant stability DA, the result of degree of staining (λ 70/ λ 5) is all in table 1
Represent in the embodiment 1～30 of～table 3.
Table 1
Table 2
Table 3
From above-described embodiment as can be seen that the present invention provide its refractive index of phosphate optical glass (nd) be 1.81～
1.89, Abbe number is 19～29, Pg, and F is 0.5957～0.6210.There is high-refraction high-dispersion, relative partial dispersion Pg, F are little,
Transmitance height and the good feature of chemical stability, the optical element that this glass is formed is suitably applied digital camera, numeral
In the equipment such as video camera, can correcting chromatic aberration well, achievable device miniaturization, light-weighted demand.
Claims (11)
1. optical glass is it is characterised in that its percentage by weight composition contains：P2O5：16.5～33.5%；Nb2O5：25～
60%；BaO：15～35%；R2O：1～13.5%, described R2O includes Na2O、K2One of O or two kinds；ZnO：0～10%；
B2O3：0～5%；Ta2O5：0～5%.
2. optical glass as claimed in claim 1 is it is characterised in that also contain：SiO2：0～5%；WO3：0～10%；RO：0
～15%, described RO includes one or more of MgO, SrO, CaO.
3. optical glass is it is characterised in that its percentage by weight consists of：P2O5：16.5～33.5%；Nb2O5：25～60%；
BaO：15～35%；ZnO：0～10%；B2O3：0～5%；Ta2O5：0～5%；SiO2：0～5%；WO3：0～10%；R2O：1
～13.5%, described R2O includes Na2O、K2One of O or two kinds；RO：0～15%, described RO is included in MgO, SrO, CaO
One or more.
4. the optical glass as described in claims 1 to 3 any claim it is characterised in that wherein, P2O5：17～30%；
And/or Nb2O5：30～55%；And/or BaO：16～31%；And/or R2O：1.5～11%；And/or ZnO：0～8%；And/or
B2O3：0～3%；And/or Ta2O5：0～3%；And/or SiO2：0～4%；And/or WO3：0～8%；And/or RO：0～12%.
5. the optical glass as described in claims 1 to 3 any claim it is characterised in that wherein, P2O5：17～25%；
And/or Nb2O5：30～50%；And/or BaO：20～30%；And/or ZnO：0.5～6%；And/or R2O：2～8%.
6. the optical glass as described in claims 1 to 3 any claim is it is characterised in that (R2O+B2O3)/BaO：
0.001-0.399.
7. the optical glass as described in claims 1 to 3 any claim is it is characterised in that (R2O+B2O3)/BaO：
0.005-0.37.
8. the optical glass as described in claims 1 to 3 any claim is it is characterised in that (R2O+B2O3)/BaO：0.1-
0.35.
9. the optical glass as described in claim 1～8 any claim is it is characterised in that described optical glass refractive index
For 1.81～1.89, Abbe number is 19～29, and transmittance reaches when 70% corresponding wavelength X 70 in below 430nm.
10. the optical glass as described in claim 1～8 any claim is it is characterised in that the Pg of described optical glass, F
For：0.5957～0.6210.
11. optical elements are it is characterised in that made using the optical glass described in claim 1～10 any claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610802288.3A CN106396374A (en) | 2016-09-05 | 2016-09-05 | Optical glass and optical element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610802288.3A CN106396374A (en) | 2016-09-05 | 2016-09-05 | Optical glass and optical element |
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| Publication Number | Publication Date |
|---|---|
| CN106396374A true CN106396374A (en) | 2017-02-15 |
Family
ID=57999467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610802288.3A Pending CN106396374A (en) | 2016-09-05 | 2016-09-05 | Optical glass and optical element |
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|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107555785A (en) * | 2017-09-27 | 2018-01-09 | 湖北新华光信息材料有限公司 | Environmentally friendly dense barium flint optical glass and preparation method thereof and optical element |
| CN110204198A (en) * | 2018-02-28 | 2019-09-06 | 成都尤利特光电科技股份有限公司 | Phosphate optical glass |
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| CN1482086A (en) * | 2002-07-18 | 2004-03-17 | ��ʽ����С�������� | Optical glass |
| CN1590328A (en) * | 2003-08-29 | 2005-03-09 | Hoya株式会社 | Optical glass, shapable glass material for press-shaping, optical element and process for producing optical element |
| JP2015164885A (en) * | 2014-03-03 | 2015-09-17 | 株式会社オハラ | optical glass, lens preform and optical element |
-
2016
- 2016-09-05 CN CN201610802288.3A patent/CN106396374A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1482086A (en) * | 2002-07-18 | 2004-03-17 | ��ʽ����С�������� | Optical glass |
| CN1590328A (en) * | 2003-08-29 | 2005-03-09 | Hoya株式会社 | Optical glass, shapable glass material for press-shaping, optical element and process for producing optical element |
| JP2015164885A (en) * | 2014-03-03 | 2015-09-17 | 株式会社オハラ | optical glass, lens preform and optical element |
Non-Patent Citations (1)
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|---|
| 李维民等: "《稀土玻璃》", 31 May 2016, 冶金工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107555785A (en) * | 2017-09-27 | 2018-01-09 | 湖北新华光信息材料有限公司 | Environmentally friendly dense barium flint optical glass and preparation method thereof and optical element |
| CN107555785B (en) * | 2017-09-27 | 2020-06-02 | 湖北新华光信息材料有限公司 | Environment-friendly barite flint optical glass and preparation method thereof and optical element |
| CN110204198A (en) * | 2018-02-28 | 2019-09-06 | 成都尤利特光电科技股份有限公司 | Phosphate optical glass |
| CN110204198B (en) * | 2018-02-28 | 2022-04-05 | 成都尤利特光电科技股份有限公司 | Phosphate optical glass |
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Application publication date: 20170215 |