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Ultraviolet-transmitting glass

An outer glass, weight percentage technology, applied in the field of UV-transmitting glass, can solve problems such as poor chemical stability of glass

Active Publication Date: 2021-06-29
CDGM OPTICAL GLASS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN106977096A discloses a glass with high transmittance in the ultraviolet band, but it contains 60-70% by mass of phosphoric acid and 13-15% of boric acid, and the chemical stability of the glass is relatively poor

Method used

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  • Ultraviolet-transmitting glass
  • Ultraviolet-transmitting glass
  • Ultraviolet-transmitting glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0099]

[0100] In order to further clearly illustrate and illustrate the technical solution of the present invention, the following non-limiting examples are provided.

[0101] In this example, the above-mentioned manufacturing method of ultraviolet transparent glass was used to obtain ultraviolet transparent glass having the compositions shown in Table 2-Table 3. In addition, the properties of each glass were measured by the test method described in the present invention, and the measurement results are shown in Tables 2 to 3.

[0102] Table 2.

[0103]

[0104]

[0105] table 3.

[0106]

[0107]

[0108]

[0109] The glass obtained in Examples 1 to 13 of the UV-transparent glass is used, for example, by means of grinding, or hot press molding, precision stamping, and other compression molding methods to produce concave meniscus lenses, convex meniscus lenses, and double-sided lenses. Prefabricated parts of various lenses, prisms, etc.

[0110]

[0111]...

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PUM

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Abstract

The invention provides ultraviolet-transmitting glass. The ultraviolet-transmitting glass comprises the following components in percentage by weight: 55 to 70 percent of SiO2, 2 to 18 percent of B2O3, 1 to 20 percent of ZnO, 4 to 30 percent of La2O3, Y2O3 and Gd2O3, 0.5% to 20% of Ta2O5, Nb2O5, TiO2 and ZrO2, and 3 to 15% of Li2O, Na2O and K2O, wherein a ratio of (La2O3 + Y2O3 + Gd2O3) / B2O3 is 0.3 to 6.0. Through reasonable component design, the glass obtained by the invention has relatively high ultraviolet transmittance and excellent chemical stability.

Description

technical field [0001] The invention relates to an ultraviolet transparent glass, in particular to an ultraviolet transparent glass with excellent chemical stability. Background technique [0002] In recent years, ultraviolet light in the 320-400nm band has been widely used in anti-counterfeiting banknote inspection, food packaging, metal detection, blood analysis, ultraviolet packaging, ultraviolet lithography and ultraviolet exposure systems and other fields. With the rapid development of the field of semiconductor manufacturing, the precision requirements for UV packaging, UV lithography and UV exposure systems are getting higher and higher. Taking the objective lens system of an ultraviolet lithography machine as an example, several or even dozens of large-aperture lenses with different refractive indices and Abbe numbers are required to combine to achieve high-precision effects. Therefore, the demand for glass with high UV transmittance in the field of optoelectronic i...

Claims

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Application Information

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IPC IPC(8): C03C3/097C03C3/118C03C4/00
CPCC03C3/097C03C3/118C03C4/0085C03C3/095
Inventor 毛露路郝良振马赫匡波
Owner CDGM OPTICAL GLASS
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