CN101439930B - Optical glass for precise compression molding - Google Patents
Optical glass for precise compression molding Download PDFInfo
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- CN101439930B CN101439930B CN2008103063736A CN200810306373A CN101439930B CN 101439930 B CN101439930 B CN 101439930B CN 2008103063736 A CN2008103063736 A CN 2008103063736A CN 200810306373 A CN200810306373 A CN 200810306373A CN 101439930 B CN101439930 B CN 101439930B
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Abstract
The invention provides optical glass for precision compression moulding forming, wherein the nd is between 1.63 and 1.75, and the vd is between 27 and 37. The optical glass does not contain compositions with high price such as Nb2O5 and Ta2O5, and the Tg is less than 520 DEG C. The optical glass for precision compression moulding forming comprises the following compositions by molar percentage: 40 to 60 percent of SiO2, 15 to 30 percent of TiO2, 2.5 to 10 percent of Li2O, 8 to 20 percent of Na2O, 0 to 10 percent of K2O, 0 to 5 percent of Cs2O, 0 to 5 percent of BaO, 0 to 3 percent of CaO, 0 to 3 percent of MgO, 0 to 3 percent of SrO, 0 to 2 percent of WO3, 0 to 2 percent of Ta2O5, 0 to 2 percent of Nb2O5, 0 to 1 percent of Al2O3, 0 to 1 percent of ZrO2, 0 to 5 percent of B2O3, 0 to 2 percent of La2O3, and 0 to 0.1 percent of Sb2O3. The optical glass is suitable for precise compression molding forming, has superior devitrification resistance, good fusing performance, forming performance and processability, and crystallization stability for realizing continuous fusing. An optical element made of the optical glass is suitable for the technical fields such as imaging system, medical technology, digital projection, photoetching technique and wafer/chip.
Description
Technical field
The present invention relates to a kind of opticglass, particularly relate to a kind of specific refractory power (n
d) be 1.63-1.75, Abbe number (v
d) be that 27-37, glass transformation temperature (Tg) are lower than 520 ℃ optical glass for precise compression molding.
Background technology
In recent years, along with the development of photoelectricity industry, the requirement of miniaturization, lightweight, high performance has been proposed optical device, in order to reduce the lens numbers that constitutes optical system in the optical device, the increasing non-spherical lens that uses in optical design.The working method of non-spherical lens is divided into traditional method and precise compression molding method, so-called traditional method is the piece material that earlier glass material is cut into a certain size and shape, with piece material heating compression moulding is the moulding mixture of definite shape, and then moulding mixture ground and is finished to non-spherical lens, the precision of the non-spherical lens that this method is produced is decided by processor's level of processing, be difficult to mass production, its manufacturing cost height.So-called precise compression molding method is that glass gob or thermoplastic gas preform are carried out impact briquetting in the mould with high precision molding surface, the high precision molding surface of mould is transcribed for example non-spherical lens of the optical element that promptly obtains having required optical function face on glass, this forming method has saved grinding and polishing process, thereby high yield and purpose have cheaply been reached, and this method is easy to realize mass production, so the precise compression molding method has become the main stream approach of making non-spherical lens.
When adopting precise compression molding method moulding optical glass device, must carry out die mould usually under the certain high temperature environment, mould envrionment temperature of living in is high more, the easy more oxidation of mould molding face, thus can't keep the high-precision surface of mould.If frequently change the not high-precision mold of door leaf of price, just be difficult to realize high yield and purpose cheaply.For prolonging die life as far as possible, temperature when just needing to reduce precise compression molding, and molding temperature is by the decision of the softening temperature of glass, and therefore exploitation has the target that alap transition temperature (Tg) and the opticglass of yield temperature (Ts) have just become the optical material developer.According to present moulding stock and coating technique level, require the transition temperature of opticglass can not be higher than 620 ℃, be not higher than 560 ℃ usually.
The opticglass that is used for accurate die pressing; requirement has various optical constants and Abbe number; for specific refractory power is 1.63-1.75; Abbe number is the opticglass of 27-37; in glass, add the transition temperature that plumbous oxide can significantly reduce glass; open clear 62-3103 as the spy and described the opticglass that contains PbO; but the carrying capacity of environment of PbO is very big; be the protection environment; the environmental protection optical glass that is not contained the PbO component at opticglass field flint glass gradually replaces; in addition when precise compression molding; reduction reaction takes place in PbO in shaping mould, damage moulding stock easily.
It is that 1.65-1.80, Abbe number are the SiO of 21-33 that CN1396132A has described specific refractory power
2-Al
2O
3-TiO
2-RO (RO represents alkaline earth metal oxides such as MgO, CaO, BaO) is an opticglass, and the transition temperature of this glass is higher, and this glass contains the Nb of 5-17% (wt%)
2O
5, Nb
2O
5Expensive raw material price, it has improved the glass cost greatly as necessary composition; It is that 1.55-1.67, Abbe number are the SiO of 30-45 that CN1448355A has described specific refractory power
2-B
2O
3-TiO
2-BaO-K
2O-ZnO is an opticglass, for improving the chemical stability of glass, this opticglass contains the ZnO of 0-5% (wt%), the ZnO component is because the grinding of glass and polishing form residue, and be dissolved in the water with the form of zine ion, if suitably do not handle the water that just discharging contains zine ion, will cause water to pollute, be unfavorable for environmental protection.
Te Kaiping 10-130033, spy open flat 10-265238, US6255240 and US6703333 has described SiO
2-B
2O
3-ZrO
2-Nb
2O
5Be opticglass, all contain more Nb in this opticglass
2O
5And ZrO
2, glass cost height is because Nb
2O
5And ZrO
2Too high levels, the easy devitrification of glass, the production difficulty of glass is big, and the Tg of the described opticglass of US6703333 can hang down and reach 400 ℃, but alkali metal oxide content height in the glass, the poor chemical stability of glass.
The described opticglass Ta of the clear 52-25812 of US5424255 and Te Kai
2O
5Substitute a part of Nb
2O
5, with Nb
2O
5Cost of material compare Ta
2O
5Cost of material higher, so production cost height of glass.
Summary of the invention
Technical problem to be solved by this invention provides a kind of n
dBe 1.63-1.75, v
dBe the optical glass for precise compression molding of 27-37, this opticglass does not contain Nb
2O
5And Ta
2O
5Deng the high composition of cost of material, Tg is lower than 520 ℃.
The technical scheme that technical solution problem of the present invention is adopted is: optical glass for precise compression molding,
The mole percent level of its moiety is: SiO
2: 40-60%, TiO
2: 15-30%, Li
2O:2.5-10%, Na
2O:8-20%, K
2O:0-10%, Cs
2O:0-5%, BaO:0-5%, CaO:0-3%, MgO:0-3%, SrO:0-3%, WO
3: 0-2%, Ta
2O
5: 0-2%, Nb
2O
5: 0-2%, Al
2O
3: 0-1%, ZrO
2: 0-1%, B
2O
3: 0-5%, La
2O
3: 0-2% and Sb
2O
3: 0-0.1%.
Further, the mole percent level of its moiety is: SiO
2: 42-55%, TiO
2: 18-29%, Li
2O:2.5-10%, Na
2O:8-20%, K
2O:0-10%, Cs
2O:0-5%, BaO:0-5%, CaO:0-3%, MgO:0-3%, SrO:0-3%, WO
3: 0-2%, Ta
2O
5: 0-2%, Nb
2O
5: 0-2%, Al
2O
3: 0-1%, ZrO
2: 0-1%, B
2O
3: 0-5%, La
2O
3: 0-2% and Sb
2O
3: 0-0.1%.
Further, the mole percent level of its moiety is: SiO
2: 40-60%, TiO
2: 15-30%, Li
2O:3.5-8.5%, Na
2O:11-18%, K
2O:0-10%, Cs
2O:0-5%, BaO:0-5%, CaO:0-3%, MgO:0-3%, SrO:0-3%, WO
3: 0-2%, Ta
2O
5: 0-2%, Nb
2O
5: 0-2%, Al
2O
3: 0-1%, ZrO
2: 0-1%, B
2O
3: 0-5%, La
2O
3: 0-2% and Sb
2O
3: 0-0.1%.
Further, the mole percent level of its moiety is: SiO
2: 42-55%, TiO
2: 18-29%, Li
2O:3.5-8.5%, Na
2O:11-18%, K
2O:0-10%, Cs
2O:0-3%, BaO:0-5%, CaO:0-3%, MgO:0-3%, SrO:0-3%, WO
3: 0-2%, Ta
2O
5: 0-2%, Nb
2O
5: 0-2%, Al
2O
3: 0-1%, ZrO
2: 0-1%, B
2O
3: 0-5%, La
2O
3: 0-2% and Sb
2O
3: 0-0.1%.
Further, the mole percent level of its moiety is: SiO
2: 44-54%, TiO
2: 18-29%, Li
2O:3.5-8.5%, Na
2O:11-18%, K
2O:0-10%, Cs
2O:0-3%, BaO:0-5%, CaO:0-3%, MgO:0-3%, SrO:0-3%, WO
3: 0-2%, Ta
2O
5: 0-2%, Nb
2O
5: 0-2%, Al
2O
3: 0-1%, ZrO
2: 0-1%, B
2O
3: 0-5%, La
2O
3: 0-2% and Sb
2O
3: 0-0.1%.
Further, the mole percent level of its moiety is: SiO
2: 44-54%, TiO
2: 20-28%, Li
2O:3.5-8.5%, Na
2O:11-18%, K
2O:0-10%, Cs
2O:0-3%, BaO:0-5%, CaO:0-3%, MgO:0-3%, SrO:0-3%, WO
3: 0-2%, Ta
2O
5: 0-2%, Nb
2O
5: 0-2%, Al
2O
3: 0-1%, ZrO
2: 0-1%, B
2O
3: 0-5%, La
2O
3: 0-2% and Sb
2O
3: 0-0.05%.
Further, the mole percent level of its moiety is: SiO
2: 44-54%, TiO
2: 20-28%, Li
2O:3.5-8.5%, Na
2O:11-18%, K
2O:0-10%, BaO:0-5%, CaO:0-3%, WO
3: 0-2%, ZrO
2: O-1% and Sb
2O
3: 0-0.03%.
The invention has the beneficial effects as follows: opticglass n of the present invention
dBe 1.63-1.75, v
dBe 27-37, do not use PbO and As
2O
3Opticglass transition temperature of the present invention is lower than 520 ℃, be applicable to precise compression molding, opticglass raw materials cost of the present invention is cheap, have excellent devitrification resistance, good fusion, moulding and processability have the crystallization-stable of realizing continuous melting, can carry out economic continuous production, the optical element of being made by opticglass provided by the invention is suitable for technical fields such as imaging system, medical skill, digital projection, photoetching technique and wafer/chip.
Embodiment
The contriver determines molar percentage (mol%) scope of said components on the basis of a large amount of tests.
Following mask body is narrated and is limited the reason that each component constitutes scope in the opticglass of the present invention as mentioned above like that, represents the amount of each component with amount of substance percentage ratio:
SiO
2Be the necessary composition of opticglass of the present invention, SiO
2Component is the oxide compound that forms glass, contain under the more situation of alkalimetal oxide group component in the present invention simultaneously, it still adjusts the viscosity of glass, the effective constituent that improves glass chemistry stability and suppress the glass tendency towards devitrification, and during as if its quantity not sufficient 40%, above-mentioned effect is just insufficient; And surpass at 60% o'clock, and glass melting is easy to generate not fusant with regard to variation, and the transition temperature of glass raises simultaneously, and specific refractory power descends, and the homogeneity of glass reduces, in order to obtain the opticglass of the low and good uniformity of transition temperature, SiO
2Components contents is limited to 40-60%, preferably is limited to 42-55%, more preferably is limited to 44-54%.
TiO
2Be necessary composition of the present invention, TiO
2Specific refractory power, reduction Abbe number for raising glass are very effective, and can reduce the density of glass and the chemical stability of raising glass significantly, when its quantity not sufficient 15%, be difficult to guarantee the objective optics constant of glass of the present invention, if but its content surpasses 30%, then not only the tendency towards devitrification of glass significantly increases, and glass significantly descends in the transmitance of S-band simultaneously, so TiO
2Content be limited to 15-30%, preferred content is limited to 18-29%, more preferably content is limited to 20-28%.
Li
2The O component can reduce the transition temperature of glass significantly and effectively improve the melting properties of glass, when its amount greater than 10% the time, will make devitrification resistance and chemical stability rapid deterioration, therefore, the amount of this component is defined as 2.5-10%, is preferably 3.5-8.5%.
Na
2O can effectively reduce the transition temperature of glass, improve the melting properties of glass and adjust optical constant, if the amount of this component is less than 8%, then can not fully obtain these effects, if and the amount of this component surpasses 20%, the remarkable variation of the chemical stability of glass then, therefore, the amount of this component is defined as 8-20%, is preferably 11-18%.
K
2O and Cs
2O has the effect similar to above-mentioned alkalimetal oxide, K
2The amount of O component is defined as 0-10%, and Cs
2The pairing cost of material of O component is relatively costly, and in order to realize the low-cost purpose of making glass, the amount of this component should be for 5% or still less, is preferably less than 3%, more preferably do not add.
Li
2O, Na
2O, K
2O, Cs
2Alkalimetal oxides such as O, can effectively reduce the transition temperature and the density of glass, improve the melting properties of glass, can improve simultaneously the chemical stability of glass by mixed alkali effect, therefore, the total total amount of alkalimetal oxide should be 10.5% or more, more preferably 14.5% or more, but alkalimetal oxide adds up to total amount to introduce too much words, the specific refractory power of glass sharply descends, and the chemical stability of glass and devitrification resistance energy variation, so the total total amount of alkalimetal oxide should be less than 30%.
BaO is specific refractory power and Abbe number, the chemical stability of raising glass and the effective constituent of thermostability of adjusting glass, its content surpasses at 5% o'clock, and the Abbe number of glass increases, and can't obtain high-dispersive optical glass, the tendency towards devitrification of glass becomes big simultaneously, so the BaO components contents limits 0-5%.
CaO can improve the chemical stability of glass, and fluxing action is arranged, but its content is higher than at 3% o'clock, and the tendency towards devitrification of glass increases, so the content of CaO is limited to 0-3%.
The effect and the CaO of these two kinds of alkaline earth metal oxides of MgO and SrO are similar, can improve the chemical stability of glass, and the MgO components contents is limited to 0-3%, and the SrO components contents is limited to 0-3%, does not preferably add.
To SiO
2-TiO
2-R
2O (R
2O represents alkalimetal oxide) add an amount of alkaline earth metal oxide RO (RO represents alkaline earth metal oxide) component in the system glass can prevent effectively that alkalimetal ion from moving and spread in glass, thereby improve the chemical stability of glass, if but the total amount of alkaline earth metal oxide component surpasses 8%, then the tendency towards devitrification of glass becomes big, in order to obtain the opticglass of devitrification resistance excellence, the total amount MgO+CaO+SrO+BaO of alkaline earth metal oxide is limited to 0-8%.
WO
3Thereby have the effect that the liquidus temperature that makes glass descends devitrification resistance is improved, and then the effect of adjusting optical constant is also arranged, but if surpass 2%, then the light transmittance of glass worsens, in addition owing to introduce WO
3The cost of material of component is higher relatively, considers that from the aspect that reduces raw materials cost its component concentration is preferably less than 2%.
Ta
2O
5, Nb
2O
5Can improve glass refraction and chromatic dispersion, Ta
2O
5Content is limited to 0-2%, Nb
2O
5Content is limited to 0-2%, does not preferably add Ta from cost consideration
2O
5, Nb
2O
5With WO
3Total content be no more than 2%.
Al
2O
3Can reduce the tendency towards devitrification of glass, improve the chemical stability of glass, its content is limited to 0-1%, does not preferably add.
ZrO
2Have the effect of improving the glass devitrification resistance, improving chemical stability, its content is limited to 0-1%.
B
2O
3Can quicken the fusing and the clarification of glass, reduce the temperature of fusion of glass, B
2O
3Content is limited to 0-5%, does not preferably add.
La
2O
3Can be used for increasing the specific refractory power of glass and the chromatic dispersion of not obvious raising glass, its content is limited to 0-2%, does not preferably add.
In glass of the present invention, in order to obtain bubble-free homogeneous glass, should add a certain amount of finings, in order to reach the effect of eliminating bubble, it is 0.1% just enough that finings content reaches, and as known finings, can select Sb
2O
3, As
2O
3, fluorochemical, muriate etc., but As
2O
3Owing to problem of environmental pollution is arranged, because fluorochemical and muriate evaporate easily, the danger of the topsoil of causing is arranged, thereby finings is preferably Sb in addition when glass melting, clarification
2O
3, preferred content is 0-0.05%, more preferably content is 0-0.03%.
In addition, consider that from the aspect of environment protection opticglass of the present invention does not contain the big component of carrying capacity of environment, as PbO, ThO
2, component such as CdO, in starting material, inevitably be mixed with the said components, opticglass involved in the present invention does not add said components.
Below narrate embodiments of the invention, but the present invention not merely is defined in these embodiment.
Table 1, table 2, table 3 are formed for the amount of substance of 15 embodiment of opticglass of the present invention, and have been shown the refractive index n of the glass that each embodiment obtains
d, Abbe number v
dWith the transition temperature Tg of glass, 3 comparative examples have also been listed in the table 3.
All embodiment are according to the predetermined proportion weighing with opticglass such as the oxide compound of required component, oxyhydroxide, carbonate, nitrate raw material commonly used in table 1, table 2, the table 3, mix the back with platinum crucible in about 1100-1350 ℃ of following fusion, clarification, stirring 2-4 hour, cool to slowly cooling in the metal pattern that pours into preheating behind the proper temperature, make opticglass of the present invention.
The opticglass that makes carried out-4 ℃/h annealing in annealing furnace after, the specific refractory power of tested glass and transition temperature.The specific refractory power of glass is measured by the GB/T7962.11 specified test, and Abbe number is that abbe number is defined as follows: v
d=(n
d-1)/(n
F-n
C).The transition temperature Tg of glass measures by the GB/T7962.16 specified test.
Table 1
Table 2
Table 3
As can be seen from the above embodiments, the refractive index n of opticglass of the present invention
dBe 1.63-1.75, Abbe number v
dBe 27-37, the transition temperature of glass is lower than 520 ℃, and does not contain PbO and As in the glass ingredient
2O
3Etc. the big composition of carrying capacity of environment, thereby can make cheaply and free from environmental pollution, these opticglass have good market competition advantage.
Claims (8)
1. optical glass for precise compression molding is characterized in that, the mole percent level of its moiety is: SiO
2: 40-60%, TiO
2: 15-30%, Li
2O:2.5-10%, Na
2O:8-20%, K
2O:0-10%, Cs
2O:0-5%, BaO:0-5%, CaO:0-3%, MgO:0-3%, SrO:0-3%, WO
3: 0-2%, Ta
2O
5: 0-2%, Nb
2O
5: 0-2%, Al
2O
3: 0-1%, ZrO
2: 0-1%, B
2O
3: 0-5%, La
2O
3: 0-2% and Sb
2O
3: 0-0.1%.
2. optical glass for precise compression molding as claimed in claim 1 is characterized in that the mole percent level of its moiety is: SiO
2: 42-55%, TiO
2: 18-29%, Li
2O:2.5-10%, Na
2O:8-20%, K
2O:0-10%, Cs
2O:0-5%, BaO:0-5%, CaO:0-3%, MgO:0-3%, SrO:0-3%, WO
3: 0-2%, Ta
2O
5: 0-2%, Nb
2O
5: 0-2%, Al
2O
3: 0-1%, ZrO
2: 0-1%, B
2O
3: 0-5%, La
2O
3: 0-2% and Sb
2O
3: 0-0.1%.
3. optical glass for precise compression molding as claimed in claim 1 is characterized in that the mole percent level of its moiety is: SiO
2: 40-60%, TiO
2: 15-30%, Li
2O:3.5-8.5%, Na
2O:11-18%, K
2O:0-10%, Cs
2O:0-5%, BaO:0-5%, CaO:0-3%, MgO:0-3%, SrO:0-3%, WO
3: 0-2%, Ta
2O
5: 0-2%, Nb
2O
5: 0-2%, Al
2O
3: 0-1%, ZrO
2: 0-1%, B
2O
3: 0-5%, La
2O
3: 0-2% and Sb
2O
3: 0-0.1%.
4. optical glass for precise compression molding as claimed in claim 1 is characterized in that the mole percent level of its moiety is: SiO
2: 42-55%, TiO
2: 18-29%, Li
2O:3.5-8.5%, Na
2O:11-18%, K
2O:0-10%, Cs
2O:0-3%, BaO:0-5%, CaO:0-3%, MgO:0-3%, SrO:0-3%, WO
3: 0-2%, Ta
2O
5: 0-2%, Nb
2O
5: 0-2%, Al
2O
3: 0-1%, ZrO
2: 0-1%, B
2O
3: 0-5%, La
2O
3: 0-2% and Sb
2O
3: 0-0.1%.
5. optical glass for precise compression molding as claimed in claim 1 is characterized in that the mole percent level of its moiety is: SiO
2: 44-54%, TiO
2: 18-29%, Li
2O:3.5-8.5%, Na
2O:11-18%, K
2O:0-10%, Cs
2O:0-3%, BaO:0-5%, CaO:0-3%, MgO:0-3%, SrO:0-3%, WO
3: 0-2%, Ta
2O
5: 0-2%, Nb
2O
5: 0-2%, Al
2O
3: 0-1%, ZrO
2: 0-1%, B
2O
3: 0-5%, La
2O
3: 0-2% and Sb
2O
3: 0-0.1%.
6. optical glass for precise compression molding as claimed in claim 1 is characterized in that the mole percent level of its moiety is: SiO
2: 44-54%, TiO
2: 20-28%, Li
2O:3.5-8.5%, Na
2O:11-18%, K
2O:0-10%, Cs
2O:0-3%, BaO:0-5%, CaO:0-3%, MgO:0-3%, SrO:0-3%, WO
3: 0-2%, Ta
2O
5: 0-2%, Nb
2O
5: 0-2%, Al
2O
3: 0-1%, ZrO
2: 0-1%, B
2O
3: 0-5%, La
2O
3: 0-2% and Sb
2O
3: 0-0.05%.
7. optical glass for precise compression molding as claimed in claim 1 is characterized in that the mole percent level of its moiety is: SiO
2: 44-54%, TiO
2: 20-28%, Li
2O:3.5-8.5%, Na
2O:11-18%, BaO:0-5%, WO
3: 0-2%.
8. optical glass for precise compression molding as claimed in claim 1 is characterized in that, the n of described opticglass
dBe 1.63-1.75, v
dFor 27-37, Tg are lower than 520 ℃.
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|---|---|---|---|
| CN2008103063736A CN101439930B (en) | 2008-12-19 | 2008-12-19 | Optical glass for precise compression molding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103063736A CN101439930B (en) | 2008-12-19 | 2008-12-19 | Optical glass for precise compression molding |
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| Publication Number | Publication Date |
|---|---|
| CN101439930A CN101439930A (en) | 2009-05-27 |
| CN101439930B true CN101439930B (en) | 2011-06-29 |
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ID=40724565
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1241169A (en) * | 1997-07-30 | 2000-01-12 | 保谷株式会社 | Method of producing glass substrate for information recording medium |
| CN1364736A (en) * | 2001-01-11 | 2002-08-21 | 日本板硝子株式会社 | Mother material glass composition for refractive index distribution lens glass |
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2008
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1241169A (en) * | 1997-07-30 | 2000-01-12 | 保谷株式会社 | Method of producing glass substrate for information recording medium |
| CN1364736A (en) * | 2001-01-11 | 2002-08-21 | 日本板硝子株式会社 | Mother material glass composition for refractive index distribution lens glass |
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