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Optical compound glass

A composite glass and optical technology, applied in the field of optical research, can solve the problems of poor water resistance, unfavorable competitiveness, poor chemical stability, etc., and achieve the effects of excellent crystallization performance, good chemical stability and low cost.

Inactive Publication Date: 2018-08-14
南通振鹏激光科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The optical glass disclosed by CN101389574A contains 30-40% B 2 o 3 , which has poor chemical stability, especially poor water resistance
CN1198414A discloses rare earth-containing optical glass close to the above optical constant range, but it contains 31-50% Nb 2 o 5 , which greatly increases the cost of raw materials, which is not conducive to improving the competitiveness of products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] An optical composite glass, the composition of which is expressed by weight percentage, containing: SiO 2 : 20%; TiO 2 : 1%; ZnO: 2%; BaO: 15%; Al 2 o 3 : 1%; Fe 3 o 4 : 1%; La 2 o 3 : 1%; Gd 2 o 3 : 1%; Y 2 o 3 : 1%; Yb 2 o 3 : 2%; MgO: 2%; CaO: 1%; SrO: 1%; Li 2 O: 1%.

[0019] The content of each component meets one or more of the following six situations:

[0020] (1) SiO 2 +B 2 o 3 : 25-55%;

[0021] (2)TiO 2 +ZnO: 9-30%;

[0022] (3)BaO / TiO 2 : 1-7.5;

[0023] (4) (MgO+CaO+SrO+BaO) / ZnO: 0.5-9;

[0024] (5) Li 2 O+Na 2 O+K 2 O: 2-18%;

[0025] (6)ZnO / (Li 2 O+Na 2 O+K 2 O): 0.3-4.

Embodiment 2

[0027] An optical composite glass, the composition of which is expressed by weight percentage, containing: SiO 2 : 35%; B 2 o 3 : 0-15%; TiO 2 : 8%; ZnO: 11%; BaO: 32%; Al 2 o 3 : 5%; Fe 3 o 4 : 5%; ZrO 2 : 5%; Nb 2 o 5 : 7%; La 2 o 3 : 5%; Gd 2 o 3 : 5%; Y 2 o 3 : 5%; Yb 2 o 3 : 5%; MgO: 5%; CaO: 5%; SrO: 5%; Li 2 O: 5%; Na 2 O: 8%; K 2 O: 8%; Sb 2 O3: 0.5%.

[0028] The content of each component meets one or more of the following six situations:

[0029] (1) SiO 2 +B 2 o 3 : 25-55%;

[0030] (2)TiO 2 +ZnO: 9-30%;

[0031] (3)BaO / TiO 2 : 1-7.5;

[0032] (4) (MgO+CaO+SrO+BaO) / ZnO: 0.5-9;

[0033] (5) Li 2 O+Na 2 O+K 2 O: 2-18%;

[0034] (6)ZnO / (Li 2 O+Na 2 O+K 2 O): 0.3-4.

Embodiment 3

[0036] An optical composite glass, the composition of which is expressed by weight percentage, containing: SiO 2 : 50%; B 2 o 3 : 15%; TiO 2 : 15%; ZnO: 20%; BaO: 50%; Al 2 o 3 : 10%; Fe 3 o 4 : 10%; ZrO 2 : 10%; Nb 2 o 5 : 15%; La 2 o 3 : 10%; Gd 2 o 3 : 10%; Y 2 o 3 : 10%; Yb 2 o 3 : 10%; MgO: 10%; CaO: 15%; SrO: 10%; Li 2 O: 10%; Na 2 O: 15%; K2 O: 15%; Sb 2 O3: 1%.

[0037] The content of each component meets one or more of the following six situations:

[0038] (1) SiO 2 +B 2 o 3 : 25-55%;

[0039] (2)TiO 2 +ZnO: 9-30%;

[0040] (3)BaO / TiO 2 : 1-7.5;

[0041] (4) (MgO+CaO+SrO+BaO) / ZnO: 0.5-9;

[0042] (5) Li 2 O+Na 2 O+K 2 O: 2-18%;

[0043] (6)ZnO / (Li 2 O+Na 2 O+K 2 O): 0.3-4.

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Abstract

The invention relates to an optical compound glass, which is characterized in that the optical compound glass is prepared from the following ingredients in parts by weight: 20-50% of SiO2, 0-15% of B2O3, 1-15% of TiO2, 2-20% of ZnO, 15-50% of BaO, 0-10% of Al2O3, 0-10% of Fe3O4, 0-10% of ZrO2, 0-15% of Nb2O5, 0-10% of La2O3, 0-10% of Gd2O3, 0-10% of Y2O3, 0-10% of Yb2O3, 0-10% of MgO, 0-15% of CaO, 0-10% of SrO, 0-10% of Li2O, 0-15% of Na2O, 0-15% of K2O and 0-1% of Sb2O3. According to the optical compound glass, on a premise that Nb2O5 is lowered or is in the absence, the contents of alkali metal, alkaline earth, ZnO and TiO2 are optimized to obtain the glass with low cost, good chemical stability and excellent devitrification performance, and the optical glass has a refractive index of 1.60-1.70 and an Abbe number of 40-50 and can meet the requirements of modern novel photoelectric products.

Description

technical field [0001] The invention relates to the field of optical research, in particular to an optical composite glass. Background technique [0002] In recent years, optical glass with a refractive index (nd) of 1.60-1.70 and an Abbe number (vd) of 40-50 has been widely used in imaging, projection, telecommunication, optical communication engineering and laser technology applications, but currently There are still many problems with quasi-optical glass. [0003] Optical glass needs to have good chemical stability in order to improve the yield rate in the later processing and coating process. At present, most of these glasses use borate system as the basis, and then add a certain amount of rare earth oxides, alkali metal oxides and alkaline earth metal oxides. When such glass system B 2 o 3 When the content is large, the chemical stability becomes poor. The optical glass disclosed by CN101389574A contains 30-40% B 2 o 3 , its chemical stability is poor, especially...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/062C03C3/068C03C3/097
CPCC03C3/062C03C3/068C03C3/097
Inventor 陈易
Owner 南通振鹏激光科技有限公司
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