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A tempered glass and optical technology, applied in the field of optical glass, can solve the problems of self-explosion, low dispersion of refractive index, reduce the production cost of traditional optical glass, etc., and achieve the effect of low dispersion, high refractive index and high strength
Inactive Publication Date: 2017-11-03
重庆品信玻璃有限公司
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Problems solved by technology
[0003] The present invention provides an optical toughened glass with high strength, high refractive index and low dispersion by selecting a reasonable combination of components and the ratio of the components, which solves the problem that traditional optical glass tends to occur during the tempering process. The problem of self-explosion and the reduction of the production cost of traditional optical glass
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Embodiment 1
[0023] A kind of optical toughened glass, by weight, described glass comprises: 100 parts of SiO 2 , 7 parts of CaO, 18 parts of MgO, 15 parts of Al 2 o 3 , 12 parts of Na 2 O, 20 copies of B 2 o 3 , 2 copies of K 2 O, 1 part of BaO, 0.5 part of MoO 3 , 1.5 parts of CdO, 2 parts of La 2 o 3 , 1 part of Gd 2 o 3 , 2 copies of Y 2 o 3 , 1 part of Yb 2 o 3 .
Embodiment 2
[0025] A kind of optical toughened glass, by weight, described glass comprises: the SiO of 200 parts 2 , 22 parts of CaO, 33 parts of MgO, 55 parts of Al 2 o 3 , 20 parts of Na 2 O, 70 parts of B 2 o 3 , 17 copies of K 2 O, 10 parts of BaO, 1 part of MoO 3 , 2.5 parts of CdO, 7 parts of La 2 o 3 , 1.8 parts of Gd 2 o 3 , 3 copies of Y 2 o 3 , 1.5 parts of Yb 2 o 3 .
Embodiment 3
[0027] A kind of optical toughened glass, by weight, described glass comprises: the SiO of 150 parts 2 , 15 parts of CaO, 25 parts of MgO, 35 parts of Al 2 o 3 , 16 parts of Na 2 O, 45 parts of B 2 o 3 , 10 copies of K 2 O, 6 parts of BaO, 0.7 parts of MoO 3 , 2 parts of CdO, 4 parts of La 2 o 3 , 1.4 parts of Gd 2 o 3 , 2.5 copies of Y 2 o 3 , 1.3 parts of Yb 2 o 3 .
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Abstract
The invention provides an optical toughened glass. The glass comprises SiO2, CaO, MgO, Al2O3, Na2O, B2O3, K2O, BaO, MoO3, CdO, La2O3, Gd2O3, Y2O3 and Yb2O3. After expensive Ta2O5 is discarded, the glass having excellent glass stability, high refractive index and low chromatic dispersion is obtained through adopting the co-existence form of the La2O3, Gd2O3, Y2O3 and Yb2O3, MoO3 can reduce the generation amount of nickel sulfide stones, and MoO3 and CdO are mixed to inhibit smoke generated in the glass production process, so the safety in the glass production process is ensured, and the self-explosion possibility of the glass is reduced.
Description
technical field [0001] The invention relates to the field of high-strength optical glass, in particular to an optical tempered glass with high strength, high refractive index and low dispersion. Background technique [0002] In today's society, optical glass is used more and more widely, widely used in camera glass lenses, glass lenses of experimental instruments, tempered glass lenses of flashlights, etc. In order to obtain optical tempered glass with high refractive index and low dispersion characteristics, the existing technology Basically by adding a large amount of Ta in the composition 2 o 5 , while Ta 2 o 5 Belonging to expensive rare earth oxides, a large increase in Ta 2 o 5 It will inevitably increase the production cost, and in order to ensure safe use, the existing optical glass is changed in the direction of increasing strength, that is, optical tempered glass is designed, but the tempered glass is easy to break by itself without external mechanical force d...
Claims
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Application Information
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