CN106865981A - Low Poison optical glass - Google Patents
Low Poison optical glass Download PDFInfo
- Publication number
- CN106865981A CN106865981A CN201710156103.0A CN201710156103A CN106865981A CN 106865981 A CN106865981 A CN 106865981A CN 201710156103 A CN201710156103 A CN 201710156103A CN 106865981 A CN106865981 A CN 106865981A
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- Prior art keywords
- optical glass
- glass
- low poison
- low
- optical
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- 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.)
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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
- C03C4/12—Compositions for glass with special properties for luminescent glass; for fluorescent 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
- C03C3/062—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
- 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
- C03C2201/00—Glass compositions
- C03C2201/06—Doped silica-based glasses
- C03C2201/08—Doped silica-based glasses containing boron or halide
- C03C2201/10—Doped silica-based glasses containing boron or halide containing boron
Abstract
It is that the near-infrared field through performance that 1.71 1.80, Abbe number is 47 53 is good that the present invention provides a kind of refractive index, and particularly burst of ultraviolel has the high-refraction low-dispersion optical glass for mold of low Poison performance.Low Poison optical glass, its percentage by weight composition contains：SiO2：0.5 10%；B2O3：15 40%；La2O3：28 50%；Gd2O3：8 30%；ZrO2：0.5 6%；Nb2O5：More than 1% but less than or equal to 10%；Y2O3：0 20%.Sb is free of in glass ingredient of the invention2O3、As2O3、TiO2, the stronger component of fluorescence such as PbO, and measured by the prescriptive procedures of Nippon Standard JOGIS 03 1975, the fluorescence grade of burst of ultraviolel is 1 grade.Optical glass of the invention can be used in the equipment such as fluorescence microscope, digital camera, DV, camera mobile phone.
Description
Technical field
The present invention relates to a kind of optical glass, the refractive index of the optical glass is 1.71-1.80, and Abbe number is 47-53, special
It is not to be related to the prefabricated component and optical element that a kind of optical glass with low Poison performance and the glass are formed.
Background technology
In recent years, begin one's study with the week fluorescent that fluorescence microscope determines very small amount bacterium, cell sends.By fluorescence
Microscope irradiates uv excitation light to the object of observation, and the optical system (objective lens) for fluorescence microscope can also send faint
Fluorescence, thus the fluorescence noise of the micro- lens head in this week fluorescent of Observe and measure just turns into a problem.Particularly,
The fluorescence for reducing the optical glass of the low dispersiveness of the refraction of the height used by fluorescence microscope optical system is very important.
For the glass of low Poison performance, JP Laid-Open 10-231140 discloses a kind of B2O3-P2O5-R2O-Ta2O5System
Low Poison optical glass, not only dispersion is higher for this kind of glass, chemical durability and translucency are not enough, and due to largely using
Expensive Ta2O5Raw material, high cost.In addition, TOHKEMY 2000-128569 disclose a kind of refractive low dispersive high with low glimmering
The optical glass of optical property, although fluorescence is relatively low during this kind of optical glass burst of ultraviolel, but wherein contain more Yb2O3,
The light transmission rate of 970nm or so is excessively poor, and practicality is poor.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of refractive index for 1.71-1.80, Abbe number are the near of 47-53
Infrared regime through performance is good, and particularly a kind of burst of ultraviolel has the high-refraction low-dispersion optical glass for mold of low Poison performance.
The technical proposal for solving the technical problem of the invention is：Low Poison optical glass, its percentage by weight composition
Contain：SiO2：0.5-10%；B2O3：15-40%；La2O3：28-50%；Gd2O3：8-30%；ZrO2：0.5-6%；Nb2O5：Greatly
In 1% but less than or equal to 10%；Y2O3：0-20%.
Further, also contain：ZnO：0-9%；RO：0-10%, the RO include the one kind or in BaO, SrO, CaO
More than kind；The Nb2O5>ZnO。
Low Poison optical glass, its percentage by weight constitutes and is：SiO2：0.5-10%；B2O3：15-40%；La2O3：28-
50%；Gd2O3：8-30%；ZrO2：0.5-6%；Nb2O5：More than 1% but less than or equal to 10%；Y2O3：0-20%；ZnO：0-
9%；RO：0-10%, the RO include BaO, SrO, CaO in one or more.
Further, wherein, Gd2O3/(La2O3+Gd2O3+Y2O3) it is 0.23-0.50.
Further, wherein, SiO2：1-8%；And/or B2O3：17-38%；And/or La2O3：30-46%；And/or
Gd2O3：10-28%；And/or ZrO2：1-5%；And/or Nb2O5：More than 1% but less than or equal to 7%；And/or Y2O3：0.5-
18%；And/or ZnO：0-6%；And/or RO：0-6%, the RO include BaO, SrO, CaO in one or more.
Further, Gd2O3/(La2O3+Gd2O3+Y2O3) it is 0.23-0.43.
Further, wherein, do not contain Sb2O3、As2O3、TiO2、PbO。
Further, wherein, do not contain Yb2O3。
Further, the optical glass refractive index is 1.71-1.80, and Abbe number is 47-53.
Further, by Nippon Standard JOGIS 03-1975 prescriptive procedures measure, the optical glass burst of ultraviolel it is glimmering
Luminosity grade is 1 grade.
Gas preform, is made of above-mentioned low Poison optical glass.
Optical element, is made of above-mentioned low Poison optical glass.
The beneficial effects of the invention are as follows：Sb is free of in high-refraction low-dispersion optical glass for mold component of the invention2O3、As2O3、
TiO2, the stronger component of fluorescence such as PbO, and measured by Nippon Standard JOGIS 03-1975 prescriptive procedures, the fluorescence of burst of ultraviolel
Degree grade is 1 grade, and with low Poison performance, its refractive index is 1.71-1.80, and Abbe number is 47-53, does not contain Yb2O3, it is near red
Outer field through performance is good, and particularly 970nm or so transmitances are high.Optical glass of the invention can be used for fluorescence microscope,
In the equipment such as digital camera, DV, camera mobile phone.
Specific embodiment
The component contained by optical glass of the present invention is described more fully below, these components are come according to percentage by weight
Represent.
SiO2It is glass generation body, is to form the necessary oxide components of glass, a certain amount of SiO2Optical glass can be made
With preferable chemical stability, and the transparency of glass is improved, prevent devitrification of glass.If SiO2Content be less than 0.5%,
The easy crystallization of glass；But if SiO2Content be higher than 10%, the high temperature viscosity of glass is too big, the easy devitrification of glass.Therefore,
SiO2Content be 0.5-10%, preferably 1-8%.
B2O3It is also a kind of optical glass network generation oxide body, preferably, appropriate content can be preferable for its fluxing action
Ground suppresses the crystallization of glass.If B2O3Content be less than 15%, glass melting is very poor, is hardly formed glass；But if B2O3
Content be higher than 40%, the easy devitrification of glass, chemical stability can be poor.Therefore, B2O3Content be 15-40%, preferably
17-38%.
La2O3It is the essential component for realizing glass high-refractivity and low-dispersion performance, because it does not fluoresce in visible region,
The low Poison performance of glass can be realized.If La2O3Content be less than 28%, the optical constant of glass can not reach required
Scope；But if La2O3Content be higher than 50%, thermal stability be deteriorated, glass easily crystallization.Therefore, La2O3Contain
Amount is defined to 28-50%, preferably 30-46%.
Gd2O3And La2O3When being used together, there can be good low Poison performance in visible region, in addition Gd2O3Can also
Enough adjust glass refraction and dispersion.If Gd2O3Content be less than 8%, the optical constant of glass can not reach required model
Enclose；But if Gd2O3Content be higher than 30%, thermal stability be deteriorated, the easy crystallization of glass.Therefore, Gd2O3Content be 8-
30%, preferably 10-28%.
Y2O3Refractive index and dispersion can be adjusted, is optional Component of the invention.If Y2O3Content be higher than 20%,
The easy devitrification of glass.Therefore, Y2O3Content be 0-20%, preferably 0.5-18%.
The present inventor's research discovery, works as Gd2O3With (La2O3+Gd2O3+Y2O3) ratio Gd2O3/(La2O3+Gd2O3+Y2O3)
During for 0.23-0.50, glass is difficult crystallization while low Poison performance is good, and better heat stability especially, works as Gd2O3/
(La2O3+Gd2O3+Y2O3) value be preferably 0.23-0.43, the low Poison performance of glass is more preferable.
Nb2O5Refractive index and the dispersion of glass can be effectively improved, a small amount of addition also helps the crystallization for suppressing glass.If
Nb2O5Content be less than 1%, the optical constant of glass can not reach required scope；But if Nb2O5Content be higher than
10%, the dispersion of glass is too high, it is impossible to reach the purpose of low dispersion.Therefore, Nb2O5Content be more than 1% but be less than or equal to
10%, preferably greater than 1% but less than or equal to 7%.
ZrO2The refractive index and chemical stability of optical glass can be improved.If ZrO2Content be less than 0.5%, then not
Due effect can be played；But if ZrO2Content be higher than 6%, the oxide of this infusibility can cause glass melting performance compared with
Easily there is the field trash of the infusibilities such as calculus in difference, inside.Therefore, ZrO2Content be 0.5-6%, preferably 1-5%.
ZnO can be added as optional Component in the present invention, and it has the work for suppressing crystallization and preventing glass devitrification
With, but the component has the tendency of deterioration low Poison performance.Therefore, the content of ZnO be 0-9%, preferably 0-6%, further it is excellent
Elect as and do not contain, the low Poison performance of glass is more preferable.
The present inventor's research discovery, works as Nb2O5Content>During the content of ZnO, the better heat stability of glass.
RO is the one or more than one in alkaline earth oxide BaO, SrO, CaO, can effectively adjust glass
Refractive index and Abbe number.The content of RO is 0-10%, preferably 0-6% in the present invention.
Due to Yb2O3Understand transmitance of the heavy damage glass in 970nm or so, therefore, glass of the invention is free of Yb2O3。
Sb2O3、As2O3、TiO2, PbO stronger fluorescence can be sent under burst of ultraviolel, therefore, the present invention does not contain these
Component, makes the low Poison performance of glass of the invention more preferable.
The optical glass that the present invention is provided is made according to preparation method well known to those skilled in the art, i.e.,：Raw material is entered
Row fusing, clarification, stirring are homogenized, are cooled to suitable temperature shaping, you can obtain refractive index provided by the present invention for 1.71-
1.80, Abbe number is 47-53, the optical glass of the refractive low dispersive high with low Poison performance.
The method of testing of each performance parameter of the optical glass that the present invention is provided is as follows：
Refractive index, Abbe number according to《The colouless optical glass method of testing refractive indexes of GB/T 7962.1-2010 and dispersion system
Number》Test.
By above-mentioned test, the optical glass of the invention for obtaining has following performance：Refractive index (nd) is 1.71-
1.80, Abbe number is (νd)47-53。
The fluorescence for weighing glass low Poison performance is by Nippon Standard《Optical glass fluorescence assay method
(JOGIS03-1975)》Prescriptive procedure measurement, standard specimen is using the flint glass that can be specified with Japanese Optical Glass industry
The corresponding glass of the trade mark, with the uv excitation light irradiating sample of 365nm wavelength, determines the fluorescence light of 400-700nm wave-length coverages
Spectrum, using the peak value of the curve of spectrum as fluorescence intensity, fluorescence is exactly glass sample fluorescence intensity and master sample fluorescence intensity
Ratio.Grade is 3 if the ratio is more than 1.5, and in 0.7-1.5, then grade is 2 to ratio, and ratio is less than 0.7 grade
1.Fluorescence grade is 1 grade, illustrates that the low Poison optical glass is very low by fluorescence intensity that excited ultraviolet is obtained, low glimmering
Optical property is excellent.Especially, glass fluorescence of the invention is less than 0.5, preferably shorter than 0.4, even more preferably below 0.3, should
Glass has preferable low Poison performance.
Degree of staining (the λ of glass80/λ5)：Using with two thickness of optical polish plane parallel to each other be 10 ±
The glass sample of 0.1mm, determines spectral transmission, is calculated according to its result.
After measured, the transmittance of glass of the present invention reaches corresponding wavelength X when 80%80In below 395nm, preferably
Below 390nm.
The present invention also provides a kind of optical precast product and optical element, and the optical precast product and element are by optics of the present invention
What glass was formed, therefore the optical precast product and optical element have all characteristics of the invention described above optical glass.This hair
Bright optical glass has low Poison performance, and the performance of refractive low dispersive high, refractive index (nd) is 1.71-1.80, and Abbe number is
(νd)47-53.The optical precast product and optical element that the present invention is provided have low fluorescence and refraction high low under burst of ultraviolel
The performance of dispersion, can be used in the equipment such as fluorescence microscope, digital camera, DV, camera mobile phone.
Embodiment
In order to further appreciate that technical scheme, the present invention will be described preferably with reference to following specific embodiment
Embodiment.It should be noted that and understand, these embodiments are intended merely to be better described the features of the present invention and excellent
Point, not restricted claim of the invention.
Optical glass component (in terms of weight percentage) and its corresponding property that embodiments of the invention 1~30 are provided
Can be as shown in Table 1 to Table 3.By by oxide, carbonate in optical glass in 1~table of table 3 each embodiment etc. according to it
Ratio is weighed, and is sufficiently mixed in uniform rear addition optical glass smelting furnace, by melting, clarifying, stirring under appropriate technological temperature
After mixing homogenizing, being cooled to suitable temperature, this glass for melting is poured into metal die preheated in advance and is molded and is annealed,
Just can obtain required optical glass.
The composition and respective performances of the optical glass with refractive low dispersive high and low Poison performance that the present invention is provided are such as：
Refractive index (nd), dispersion (nF-nC), Abbe number (vd), fluorescence, degree of staining (λ80/λ5) result all in the reality of 1~table of table 3
Apply expression in example 1~30.
Table 1
Table 2
Table 3
From above-described embodiment as can be seen that high-refraction low-dispersion optical glass for mold of the invention, its refractive index is 1.71-
1.80, Abbe number is 47-53, and near-infrared field through performance is good, with low Poison performance.Optical glass of the invention can use
In the equipment such as fluorescence microscope, digital camera, DV, camera mobile phone.
Claims (12)
1. low Poison optical glass, it is characterised in that its percentage by weight composition contains：SiO2：0.5-10%；B2O3：15-
40%；La2O3：28-50%；Gd2O3：8-30%；ZrO2：0.5-6%；Nb2O5：More than 1% but less than or equal to 10%；Y2O3：
0-20%.
2. low Poison optical glass as claimed in claim 1, it is characterised in that also contain：ZnO：0-9%；RO：0-10%,
The RO include BaO, SrO, CaO in one or more；The Nb2O5>ZnO。
3. low Poison optical glass, it is characterised in that its percentage by weight composition is：SiO2：0.5-10%；B2O3：15-40%；
La2O3：28-50%；Gd2O3：8-30%；ZrO2：0.5-6%；Nb2O5：More than 1% but less than or equal to 10%；Y2O3：0-
20%；ZnO：0-9%；RO：0-10%, the RO include BaO, SrO, CaO in one or more.
4. the low Poison optical glass as described in claim 1-3 any claims, it is characterised in that wherein, Gd2O3/
(La2O3+Gd2O3+Y2O3) it is 0.23-0.50.
5. the low Poison optical glass as described in claim 1-3 any claims, it is characterised in that wherein, SiO2：1-
8%；And/or B2O3：17-38%；And/or La2O3：30-46%；And/or Gd2O3：10-28%；And/or ZrO2：1-5%；With/
Or Nb2O5：More than 1% but less than or equal to 7%；And/or Y2O3：0.5-18%；And/or ZnO：0-6%；And/or RO：0-
6%, the RO include BaO, SrO, CaO in one or more.
6. the low Poison optical glass as described in claim 1-3 any claims, it is characterised in that Gd2O3/(La2O3+
Gd2O3+Y2O3) it is 0.23-0.43.
7. the low Poison optical glass as described in claim 1-2 any claims, it is characterised in that wherein, do not contain
Sb2O3、As2O3、TiO2、PbO。
8. the low Poison optical glass as described in claim 1-2 any claims, it is characterised in that wherein, do not contain
Yb2O3。
9. the low Poison optical glass as described in claim 1-8 any claims, it is characterised in that the optical glass folding
Rate is penetrated for 1.71-1.80, Abbe number is 47-53.
10. the low Poison optical glass as described in claim 1-8 any claims, it is characterised in that by Nippon Standard
JOGIS 03-1975 prescriptive procedures are measured, and the fluorescence grade of the optical glass burst of ultraviolel is 1 grade.
11. gas preforms, are made of the low Poison optical glass described in claim 1-10 any claims.
12. optical elements, are made of the low Poison optical glass described in claim 1-10 any claims.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710156103.0A CN106865981B (en) | 2017-03-16 | 2017-03-16 | Low Poison optical glass |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710156103.0A CN106865981B (en) | 2017-03-16 | 2017-03-16 | Low Poison optical glass |
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| CN106865981A true CN106865981A (en) | 2017-06-20 |
| CN106865981B CN106865981B (en) | 2019-12-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107244803A (en) * | 2017-07-11 | 2017-10-13 | 湖北新华光信息材料有限公司 | Flint optical glass with heavy lanthanum and preparation method thereof and optical element |
| CN109734304A (en) * | 2019-03-28 | 2019-05-10 | 成都光明光电股份有限公司 | Optical glass, gas preform, optical element and optical instrument |
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| CN1438194A (en) * | 2003-03-17 | 2003-08-27 | 成都光明光电信息材料有限公司 | High-refraction low-dispersion optical glass |
| JP2007269584A (en) * | 2006-03-31 | 2007-10-18 | Ohara Inc | Optical glass |
| CN101293736A (en) * | 2007-04-23 | 2008-10-29 | 亚洲光学股份有限公司 | Optical glass |
| CN106396369A (en) * | 2016-09-29 | 2017-02-15 | 成都光明光电股份有限公司 | Optical glass, glass prefabricated component and optical element |
| CN106467357A (en) * | 2015-08-14 | 2017-03-01 | 成都光明光电股份有限公司 | Optical glass |
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| JP3113604B2 (en) * | 1997-03-25 | 2000-12-04 | 株式会社オハラ | Optical glass with negative anomalous dispersion |
| CN1438194A (en) * | 2003-03-17 | 2003-08-27 | 成都光明光电信息材料有限公司 | High-refraction low-dispersion optical glass |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107244803A (en) * | 2017-07-11 | 2017-10-13 | 湖北新华光信息材料有限公司 | Flint optical glass with heavy lanthanum and preparation method thereof and optical element |
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| CN109734304A (en) * | 2019-03-28 | 2019-05-10 | 成都光明光电股份有限公司 | Optical glass, gas preform, optical element and optical instrument |
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| CN106865981B (en) | 2019-12-03 |
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