CN101333071A - High-refractivity and low-dispersion lanthanide optical glass NZLaF30 and method for manufacturing same - Google Patents
High-refractivity and low-dispersion lanthanide optical glass NZLaF30 and method for manufacturing same Download PDFInfo
- Publication number
- CN101333071A CN101333071A CNA2007100432626A CN200710043262A CN101333071A CN 101333071 A CN101333071 A CN 101333071A CN A2007100432626 A CNA2007100432626 A CN A2007100432626A CN 200710043262 A CN200710043262 A CN 200710043262A CN 101333071 A CN101333071 A CN 101333071A
- Authority
- CN
- China
- Prior art keywords
- percent
- glass
- low
- refractivity
- optical glass
- 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.)
- Pending
Links
Landscapes
- Glass Compositions (AREA)
Abstract
The invention discloses a high-refractive index low-dispersion lanthanide optical glass NZLaF30, wherein, based on weight percentage, the glass comprises 5.5-10.0 percent of SiO2, 9.5-12.5 percent of B2O3, 41.0-54.0 percent of La2O3, 4.0-7.5 percent of ZrO2, 0.5-5.0 percent of Nb2O5, 11.0-19.5 percent of Ta2O5, 0-15.0 percent of Gd2O3, 0-3.0 percent of Y2O3, 0-3.0 percent of ZnO, and 0-1.0 percent of TiO2. The high-refractive index low-dispersion lanthanide optical glass NZLaF30 has good crystallization and molding properties, and the optical constants (nd, vd) of the glass are in line with the standard requirements; the bubble of the glass reaches grade a; the glass has no stripes.
Description
Technical field
The present invention is trade mark in the big class of heavy-lanthanide flint glass, is the lanthanide optical glass that is used to make high-refractivity and low-dispersions such as advanced camera and senior precision instrument.
Background technology
Present flint optical glass with heavy lanthanum exists bubble and fringe phenomena, has influenced quality product.
Summary of the invention
The object of the present invention is to provide a kind of crystallization property, processability is good, and optical constant (nd, vd), the high-refractivity and low-dispersion lanthanide optical glass that bubble, striped conformance with standard require.
The present invention is according to weight percent meter, SiO wherein
2-5.5-10.0, B
2O
3-9.5-12.5, La
2O
3-41.00-54.00, ZrO
2-4.0-7.5, Nb
2O
5-0.5-5.0, Ta
2O
5-11.0-19.5, Gd
2O
3-0-15.0, Y
2O
3-0-3.0, ZnO-0-3.0, TiO
2-0-1.0.
The invention belongs to the nd extra-high-speed, nf-nc spy is low, and it is nearly 80% that rare earth oxide accounts for total amount, wherein La
2O
5Weight affects devitrification behavior about 50%, need to use a certain amount of Gd
2O
3Replace La
2O
3
Nd:1.8030 of the present invention, the vd:40.80 rare earth oxide amount of accounting for is high, in order to reach the low dispersion of its high refraction, has added the high high-refractivity and low-dispersion rare earth oxide Ta of fusing point
2O
5, Gd
2O
3Deng oxide, increase and found difficulty, at each bad joint of melting technology, adopt certain measure.
No As in the above-mentioned prescription
2O
3, PbO, CdO, be environmental protection optical glass.
Adopt above-mentioned prescription, earlier that each component is even when making heavy-lanthanide flint glass NZLaF30, adopts new glasswork technology, ℃ in platinum crucible molybdenum filament rod electric furnace, heat in 1470 ℃-l500 and make glass.Adopt leakage material technology to pull into garden rod or block then.Through guipure black annealing, the required length of quick-fried one-tenth.Above-mentioned glass is entered annealing furnace be warming up to 670 ℃-710 ℃ of annealing temperatures insulation 10-20 hour gradually, lower the temperature gradually then about 11 days, survey its optical constant to room temperature, the check bubble, striped obtains the opticglass that conformance with standard requires.
Crystallization property of the present invention, processability is good, optical constant (nd, vd) conformance with standard requirement, bubble a level, no striped.
Embodiment
The present invention is further described to use below embodiment again
The component of embodiments of the invention 1 ~ 4, processing parameter, performance perameter such as following table are listed:
| Component | Technical parameter | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| SiO 2 | (weight part) | 9.8 | 9.1 | 7.3 | 5.5 |
| B 2O 3 | (weight part) | 9.7 | 10.3 | 10.8 | 12.5 |
| La 2O 3 | (weight part) | 52.4 | 52.5 | 44.1 | 42.9 |
| Y 2O 3 | (weight part) | 3.0 | 2.2 | 0 | 0 |
| ZnO | (weight part) | 1.6 | 3.0 | 0 | 0 |
| Ta 2O 5 | (weight part) | 11.6 | 12.0 | 18.4 | 17.9 |
| ZrO 2 | (weight part) | 7.5 | 6.8 | 4.4 | 5.9 |
| Nb 2O 5 | (weight part) | 4.2 | 3.5 | 0.8 | 1.4 |
| TiO 2 | (weight part) | 0.2 | 0.5 | 0 | 0 |
| Gd 2O 3 | (weight part) | 14.2 | 13.9 | ||
| Add up to | 100 | 100 | 100 | 100 | |
| Glass melting temperature (℃) | 1500 | 1500 | 1500 | 1500 | |
| Charge temperature (℃) | 1470 | 1470 | 1470 | 1470 | |
| Tapping temperature ℃ | 1360 | 1360 | 1360 | 1360 | |
| Annealing temperature (℃) | 690 | 690 | 690 | 690 | |
| nd | 1.8802 | 1.8780 | 1.8852 | 1.8779 | |
| vd | 39.90 | 39.93 | 41.85 | 40.78 |
Above-mentioned each example manufacturing process program of the present invention is basic identical, just selects formula constituent slightly different (to adjust optical property etc.), and above example is all founded at 300CC platinum crucible molybdenum filament rod electric furnace internal heating.
The manufacturing process of example 4, measuring by weight component is SiO
27.5, B
2O
311.0, La
2O
342.9, Ta
2O
517.9, ZrO
25.9, Nb
2O
50.90, Gd
2O
313.9 each component is evenly mixed in the rear 300CC of the adding platinum crucible, add hot smelting in molybdenum filament rod electric furnace, temperature is 1500 ℃ of insulations 4-5 hour, is down to then 1360 ℃, pour in the swage of preheating, enter with annealing in the heating wire heating anneal stove, 690 ℃ are incubated 4 hours, are cooled to 350 ℃ with 10 ℃/H and close electricity, by the time take out glass near room temperature the time, watch glass quality, nd, nf-nc are surveyed in sampling then.This trade mark can drop into 18 liter capacity platinum crucibles at present, adds melting in the electrothermal stove at molybdenum bar, drops into batch production.
Claims (3)
1. high-refractivity and low-dispersion lanthanide optical glass NZLaF 30 is characterized in that: according to weight percent meter, and SiO wherein
2-5.5-11.0, B
2O
3-9.5-13.0, La
2O
3-40.0-55.0, ZrO
2-3.5-7.5, Nb
2O
5-0.5-5.0, Ta
2O
5-10.5-19.5, Gd
2O
3-0-15.0, Y
2O
3-0-3.0, ZnO-0-3.0, TiO2-0-1.0.
2. high-refractivity and low-dispersion lanthanide optical glass NZLaF 30 according to claim 1 is characterized in that: SiO
2-5.5-10.0, B
2O
3-9.5-12.5, La
2O
3-41.00-54.00, ZrO
2-4.0-7.5, Nb
2O
5-0.5-5.0, Ta
2O
5-11.0-19.5, Gd
2O
3-0-15.0, Y
2O
3-0-3.0, ZnO-0-3.0, TiO
2-0-1.0.
3. prepare claim 1 or 2 described high-refractivity and low-dispersion lanthanide optical glass NZLaF 30s, it is characterized in that: above-mentioned component is mixed, found 1380 ℃ of moulding through 1470 ℃ ~ 1500 ℃, check through 670 ℃ ~ 710 ℃ annealing about 11 days, records nd:1.8830 ± 7 * 10 again after the cooling
-4, vd:40.80 ± 0.7%, bubble, the satisfactory heavy-lanthanide flint glass of striped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100432626A CN101333071A (en) | 2007-06-29 | 2007-06-29 | High-refractivity and low-dispersion lanthanide optical glass NZLaF30 and method for manufacturing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100432626A CN101333071A (en) | 2007-06-29 | 2007-06-29 | High-refractivity and low-dispersion lanthanide optical glass NZLaF30 and method for manufacturing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101333071A true CN101333071A (en) | 2008-12-31 |
Family
ID=40195993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100432626A Pending CN101333071A (en) | 2007-06-29 | 2007-06-29 | High-refractivity and low-dispersion lanthanide optical glass NZLaF30 and method for manufacturing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101333071A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114133226A (en) * | 2021-12-30 | 2022-03-04 | 苏州晶生新材料有限公司 | Optical coating substrate and using method thereof |
-
2007
- 2007-06-29 CN CNA2007100432626A patent/CN101333071A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114133226A (en) * | 2021-12-30 | 2022-03-04 | 苏州晶生新材料有限公司 | Optical coating substrate and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101012102B (en) | Optical glass | |
| CN101289276B (en) | High-refraction and high- dispersion optical glass and method of manufacture | |
| CN101805120B (en) | Optical glass and optical element | |
| CN101386469B (en) | High refraction and low dispersion optical glass | |
| CN105198206A (en) | Optical glass | |
| WO2006093062A1 (en) | Optical glass | |
| CN101333072A (en) | High-refractivity lanthanide optical glass NLaSF010 and method for manufacturing same | |
| JP6023676B2 (en) | Optical glass, glass preform using the same, optical component, and optical instrument | |
| CN102050571A (en) | Optical glass with high index of refraction | |
| CN102311229A (en) | Optical glass and optical element | |
| CN105174714A (en) | Optical glass | |
| CN103241942A (en) | High-refraction and low-dispersion optical glass and manufacturing method | |
| JP2015533773A (en) | Optical glass | |
| CN105293897A (en) | Optical glass | |
| CN109399916A (en) | Optical glass, optical precast product, optical element and optical instrument | |
| CN104995144A (en) | Optical glass, hot-formed article and method for manufacturing same, and optical element and method for manufacturing same | |
| CN102295409B (en) | Optical glass and optical element | |
| CN102674686A (en) | Optical glass | |
| CN102303952B (en) | Optical glass | |
| CN107010826A (en) | Environmentally friendly lanthanide flint optical glass and preparation method thereof | |
| CN101333071A (en) | High-refractivity and low-dispersion lanthanide optical glass NZLaF30 and method for manufacturing same | |
| JP5874558B2 (en) | Preforms for press molding and optical elements made from preforms | |
| JP2006117503A (en) | Optical glass | |
| CN101973703A (en) | Environment-friendly lanthanide series optical glass TZLaF8 with high refractive index and low chromatic dispersion | |
| CN101070224A (en) | Arsenic-free, lead-free, cadmium free firestone optical glass |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081231 |