A light flint optical glass

A technology of optical glass and light flint, which is applied in the field of optical glass, can solve problems such as unfavorable product promotion, and achieve the effects of low cost, good transmission performance, and good recompression performance

Active Publication Date: 2018-10-26
HUBEI NEW HUAGUANG NEW INFORMATION MATERIALS CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Optical glass suitable for large-scale mass production, excellent performance and low price has more competitive advantages, but the above-mentioned types of glass have certain deficiencies in terms of cost or performance or expansion of mass production, which is not conducive to the promotion of products in the market

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A light flint optical glass
  • A light flint optical glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0067] Table 1: Glass components, performance parameters, and raw material costs of Examples 1-10.

[0068]

[0069] Table 2: Glass components, performance parameters, and raw material costs of Comparative Examples A-E

[0070]

[0071] Weigh the raw materials corresponding to the 10 example components shown in the table, such as oxides, carbonates, nitrates, etc., according to the specified proportions, mix them into batches, and add them to the platinum crucible at a temperature of 1260°C Then, the temperature is raised to 1360°C to perform stirring, clarification and homogenization processes, and after the temperature is lowered to 1250°C, the glass of the present invention can be obtained by casting in a molding mold.

[0072] Comparative examples A, B, C, D, E are weighed according to the ratio of the raw materials corresponding to each component respectively, and are prepared by the same preparation method as in Example 1 to obtain comparative examples A, B, C, D, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
transition temperatureaaaaaaaaaa
glass transition temperatureaaaaaaaaaa
refractive indexaaaaaaaaaa
Login to view more

Abstract

The invention discloses light-flint optical glass which comprises the following components based on compounds: 41.7-49.5 percent of SiO2, 2.3-10.5 percent of B2O3, 11.0-19.0 percent of K2O, 0-7.0 percent of Na2O, 9.0-12.5 percent of TiO2, 0.5-1.5 percent of ZnO, 3.5-10.0 percent of Al2O3, 9.5-12.0 percent of K2SiF6 and 0-0.07 percent of Sb2O3. The optical glass does not contain P2O5 from which harmful substances easily volatilize and which easily absorbs moisture in a batching process, Li2O which is highly corrosive, or expensive components such as La2O3, Nb2O5, Gd2O3, WO3 and Y2O3. The optical glass is 1.53 to 1.56 in refractive index nd, 43 to 49 in abbe number upsilon d, smaller than 370nm in gamma 80, low in devitrification tendency, high in penetration rate, excellent in chemical stability and moisture resistance stability, and lower than 485 DEG C in Tg.

Description

technical field [0001] The invention relates to light flint optical glass, which belongs to the technical field of optical glass. Background technique [0002] With the development of society, lenses with a refractive index of 1.53 to 1.56 and an Abbe number of 43 to 49 are more and more widely used in cameras, video cameras, mobile phones, optical disc systems and other fields, and people's awareness of environmental protection is gradually increasing. The material of traditional optical glass is gradually being phased out. [0003] The optical glass disclosed in patent application CN201180042148.6 contains 2-12% Li in its components 2 O, has an erosive effect on the smelting device, destroys the network structure, and deteriorates the crystallization performance. Also contains 7-20% La 2 o 3 , so that the material cost increases. [0004] The optical glass disclosed in patent application CN200710138700.7 contains 25-44% P 2 o 5 , its volatile harmful substances, eas...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/118
CPCC03C3/118
Inventor 李建新陈超胡向平梁立新
Owner HUBEI NEW HUAGUANG NEW INFORMATION MATERIALS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap