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crown glass
Molecular formula :
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nature : no lead oxide, a low refractive index, the less dispersion optical glass. Light containing barium oxide 10%. Quality barium oxide containing about 44%. The quality of phosphorus containing phosphorus pentoxide about 70%. The system for microscopes, telescopes, cameras and other optical instruments sight of the lens, prisms, mirrors and so on. Firestone combination with the glass, remove the lens aberration and color.


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More Detailed Data:
1) crown glass
2) glass
3) glass
4) crown
Notice Some description was translated by software and the data is only as a reference.
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