CN104926106A - High refractive index optical glass - Google Patents
High refractive index optical glass Download PDFInfo
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- CN104926106A CN104926106A CN201410109506.6A CN201410109506A CN104926106A CN 104926106 A CN104926106 A CN 104926106A CN 201410109506 A CN201410109506 A CN 201410109506A CN 104926106 A CN104926106 A CN 104926106A
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- China
- Prior art keywords
- refractive index
- high refractive
- optical glass
- index optical
- glass
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Abstract
A refractive index optical glass comprises the following components by weight: 1-15% of ZnO, 1-18% of B2O3, 15-28% of La2O3, 8-10% of BaO, 11-12% of Na2O, 2-10% of Bi2O3, 4-5% of Gd2O3, 1-2% of CuO, and 2-4% of SiO2. The glass has high refractive index and low dispersion characteristics.
Description
Technical field
The present invention relates to a kind of optical glass having high refractive index.
Background technology
Opticglass is the glass material for the manufacture of the lens in opticinstrument or mechanical system, prism, speculum and window etc.Opticglass light transmission is good.Refractive index is high, is widely used in manufacturing the opticinstruments such as ophthalmic lens, photographic camera, visual telescope, microscope and lens.Along with the progress of science and technology, digital product updates, also increasing to the demand of opticglass, and it is also proposed higher requirement to the performance of opticglass.
There is high refractive index, the opticglass of low dispersion be widely used in existing in an imaging device, such as: two one group, the lens formed by high refractive index, low dispersing glass, can aberration be revised and make optical system miniaturization.Therefore, high refractive index low dispersed optical glass occupies very important position in the projection optics system such as optical system or projector.
But high refractive index disclosed in prior art field, there is a lot of not enough or defect in low dispersed optical glass, such as: patent documentation CN102295409A discloses a kind of high refractive index, low dispersed optical glass, refractive index n d is 1.86-1.89, but Ta2O5 content is 5wt%_12.9wt%, why the low dispersing glass of this high refractive index is containing a large amount of Ta2O5, it is the high refractive index because of being more than or equal to 1.75 for refractive index n d, the opticglass of low dispersion is keep higher specific refractory power, but Ta2O5 is a kind of expensive rare earth element, therefore above-mentioned opticglass is because Ta2O5 content is higher, its cost is higher, Gd2O3 is as the important component improving specific refractory power simultaneously, also refractive index n d is caused to be 1.86-1.89, Abbe number v d is the high refractive index of 38.5-42, low dispersed optical glass cost increase.Simultaneously owing to introducing WO3, the degree of staining λ of opticglass is made all to be greater than 390nm.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of optical glass having high refractive index, its compositional range contains in compound by weight percentage: ZnO1 ~ 15%, B
2o
31 ~ 18%, La
2o
315 ~ 28%, BaO8 ~ 10%, Na
2o11 ~ 12%, Bi
2o
32 ~ 10%, Gd
2o
34 ~ 5%, CuO1 ~ 2%, SiO
22 ~ 4%.
beneficial effect
Glass of the present invention has the feature of high-refractivity and low-dispersion.
Embodiment
The invention provides a kind of optical glass having high refractive index, its compositional range contains in compound by weight percentage: ZnO1 ~ 15%, B
2o
31 ~ 18%, La
2o
315 ~ 28%, BaO8 ~ 10%, Na
2o11 ~ 12%, Bi
2o
32 ~ 10%, Gd
2o
34 ~ 5%, CuO1 ~ 2%, SiO
22 ~ 4%.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (1)
1. an optical glass having high refractive index, is characterized in that, its compositional range contains in compound by weight percentage: ZnO1 ~ 15%, B
2o
31 ~ 18%, La
2o
315 ~ 28%, BaO8 ~ 10%, Na
2o11 ~ 12%, Bi
2o
32 ~ 10%, Gd
2o
34 ~ 5%, CuO1 ~ 2%, SiO
22 ~ 4%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410109506.6A CN104926106A (en) | 2014-03-21 | 2014-03-21 | High refractive index optical glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410109506.6A CN104926106A (en) | 2014-03-21 | 2014-03-21 | High refractive index optical glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104926106A true CN104926106A (en) | 2015-09-23 |
Family
ID=54113573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410109506.6A Pending CN104926106A (en) | 2014-03-21 | 2014-03-21 | High refractive index optical glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104926106A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112250299A (en) * | 2019-07-22 | 2021-01-22 | 肖特股份有限公司 | Cladding glass for solid state lasers |
-
2014
- 2014-03-21 CN CN201410109506.6A patent/CN104926106A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112250299A (en) * | 2019-07-22 | 2021-01-22 | 肖特股份有限公司 | Cladding glass for solid state lasers |
| CN112250299B (en) * | 2019-07-22 | 2024-03-08 | 肖特股份有限公司 | Cladding glass for solid state lasers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150923 |