Environment-friendly flint optical glass and optical element

A technology of optical glass and optical components, which is applied in the field of environmentally friendly flint optical glass and optical components, can solve the problems of unsatisfactory glass chroma quality and unsatisfactory bubble quality, and achieve the effect of low glass production difficulty, ideal bubbles, and favorable bubbles

Inactive Publication Date: 2015-02-11
CDGM OPTICAL GLASS
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Problems solved by technology

The existing disclosed optical glass formula of this type is introduced by Sb 2 o 3 , to promote the overflow of bubbles and improve the quali

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  • Environment-friendly flint optical glass and optical element

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Embodiment Construction

[0026] The various components of the optical glass of the present invention will be described below, and unless otherwise specified, the ratios of the content of each component are expressed in % by weight.

[0027] Sb 2 o 3 It has the effect of eliminating bubbles in the glass of environmentally friendly flint and environmentally friendly heavy flint, but at the same time it will also reduce the quality of glass chroma. Increase Sb in glass formulation 2 o 3 content, the quality of glass chroma will decrease; reduce Sb in glass formulation 2 o 3 Content, glass color quality can be improved. In order to ensure glass bubbles and chromaticity at the same time, it is necessary to control the introduction of Sb 2 o 3 content. The study found that a small amount of Sb 2 o 3 with and without Sb 2 o 3 Comparatively, the glass transmittance has no change, therefore, the Sb of the present invention 2 o 3 The content is preferably 0.1% as the upper limit, more preferably 0...

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Abstract

The invention provides an environment-friendly flint optical glass with a refractive index of 1.55 to 1.85 and abbe number of 23 to 45. The optical glass has an ideal bubble quality and chroma quality. The transmittance of a wave, which is triggered by irradiating UV on the environment-friendly optical glass and has a wave length of 450 nm, is less than 2.1%. The optical glass is composed of the following components in percentage by weight: 20 to 70% of SiO2, 5 to 35% of TiO2, 0 to 20% of RO, 5 to 25% of R2O, wherein the RO represents the total amount of MgO, BaO, CaO, and SrO, and the R2O represents the total amount of K2O, Na2O, and Li2O. The provided optical glass has a qualified optical performance, has an ideal bubble quality and chroma quality, and moreover has an easier glass production difficulty and raw material production difficulty. The provided optical glass can meet the requirements of high-class optoelectronic digital products and high definition (HD) imaging equipment.

Description

technical field [0001] The invention relates to the technical field of glass, in particular to an environment-friendly flint optical glass and an optical element. Background technique [0002] Environmentally friendly Flint optical glass is widely used in glass materials for optical components required by high-end optoelectronic products such as digital cameras, SLR cameras, digital cameras, and smart phones. The digitalization and high-definition of high-end optoelectronic products require this series of glasses to have high bubble quality and chromaticity quality at the same time. The existing disclosed optical glass formula of this type is introduced by Sb 2 o 3 , to promote the overflow of bubbles and improve the quality of bubbles, but the quality of glass chromaticity is not ideal; the optical glass formula removes Sb 2 o 3 , the bubble quality is not ideal. Contents of the invention [0003] The technical problem to be solved by the present invention is to prov...

Claims

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Application Information

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IPC IPC(8): C03C3/078C03C3/085C03C3/089C03C3/064
CPCC03C3/078C03C3/062C03C3/083C03C3/087C03C3/089
Inventor 李英花吉祥
Owner CDGM OPTICAL GLASS
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