초록 ▼

Glass is provided so as to have high visible transmission and/or fairly clear or neutral color. In certain example embodiments, the glass may include a base glass (e.g., soda lime silica base glass) and, in addition, by weight percentage: total iron (expressed as Fe2O3): 0.01 to 0.30%

Glass is provided so as to have high visible transmission and/or fairly clear or neutral color. In certain example embodiments, the glass may include a base glass (e.g., soda lime silica base glass) and, in addition, by weight percentage: total iron (expressed as Fe2O3): 0.01 to 0.30% erbium oxide (e.g., Er2O3): 0.01 to 0.30%.

대표청구항 ▼

What is claimed is: 1. Glass comprising: Ingredient wt. % SiO2 67-75% Na2O 10-20% CaO 5-15% total iron (expressed as Fe2O3) 0.01 to 0.30% erbium oxide 0.01 to 0.30% wherein the glass has visible transmission of at least 75%, and at least one of a transmissi

What is claimed is: 1. Glass comprising: Ingredient wt. % SiO2 67-75% Na2O 10-20% CaO 5-15% total iron (expressed as Fe2O3) 0.01 to 0.30% erbium oxide 0.01 to 0.30% wherein the glass has visible transmission of at least 75%, and at least one of a transmissive a* color value of-1.0 to +1.0 and a transmissive b* color value of-1.0 to +1.5, and wherein the glass comprises 0-0.0002% cerium oxide. 2. The glass of claim 1, wherein the glass comprises: total iron (expressed as Fe2O3) 0.02 to 0.20% erbium oxide 0.02 to 0.20%. 3. The glass of claim 2, wherein the glass comprises: total iron (expressed as Fe2O3) 0.03 to 0.15% erbium oxide 0.03 to 0.13%. 4. The glass of claim 1, wherein the glass has a visible transmission of at least 85% at a reference thickness of about 5.6 mm. 5. The glass of claim 1, wherein the glass has a visible transmission of at least 90% at a reference thickness of about 5.6 mm. 6. The glass of claim 1, wherein the glass has a redox value (FeO/Fe2O3) no greater than 0.20. 7. The glass of claim 1, wherein the glass has a redox value (FeO/Fe2O3) no greater than 0.15. 8. The glass of claim 1, wherein the glass has a redox value (FeO/Fe2O3) no greater than 0.13. 9. The glass of claim 1, wherein the glass further comprises less than or equal to 0.020% FeO. 10. The glass of claim 1, wherein the glass comprises from 0. 0015 to 0.015% FeO. 11. The glass of claim 1, wherein the glass comprises from 0. 0015 to 0.012% FeO. 12. The glass of claim 1, wherein the glass comprises less than or equal to 0.0002% cobalt oxide. 13. The glass of claim 1, wherein the glass comprises less than or equal to 0.0001% cobalt oxide. 14. The glass of claim 1, wherein the glass comprises less than or equal to 0.0001% cerium oxide. 15. Glass comprising: Ingredient wt. % SiO2 67-75% Na2O 10-20% CaO 5-15% total iron (expressed as Fe2O3) 0.01 to 0.30% erbium oxide 0.01 to 0.30% wherein the glass has visible transmission of at least 75%, and at least one of a transmissive a* color value of-1.0 to +1.0 and a transmissive b* color value of-1.0 to +1.5, and wherein the glass comprises 0-0.12% cerium oxide. 16. Glass comprising: Ingredient wt. % SiO2 67-75% Na2O 10-20% CaO 5-15% total iron (expressed as Fe2O3) 0.01 to 0.30% erbium oxide 0.01 to 0.30% wherein the glass has visible transmission of at least 75%, and at least one of a transmissive a* color value of-1.0 to +1.0 and a transmissive b* color value of-1.0 to +1.5, and wherein the glass is substantially free of both cerium oxide and cobalt oxide. 17. The glass of claim 1, wherein the glass includes less than 2 ppm of Se. 18. The glass of claim 1, wherein the glass includes less than 1 ppm of Se. 19. The glass of claim 1, wherein the glass comprises from 0. 02 to 0.13% erbium oxide. 20. The glass of claim 1, wherein the glass has a transmissive a* color value of-1.0 to +1.0 and a transmissive b* color value of-0.7 to +1.0. 21. The glass of claim 1, wherein the glass has a transmissive a* color value of-0.60 to +0.60 and a transmissive b* color value of-0.7 to +1.0. 22. The glass of claim 1, wherein the glass comprises from 0-5% MgO, from 0-5% K2O and from 0-5% Al2O3. 23. The glass of claim 1, wherein the glass comprises from 6-12% CaO and from 10-15% Na2O. 24. A glass comprising a base portion and a colorant portion, wherein the base portion of the glass comprises: Ingredient wt. % SiO2 67-75% Na2O 10-20% CaO 5-15% wherein the colorant portion of the glass consists essentially of: total iron (expressed as Fe2O3) 0.01 to 0.30% erbium oxide 0.01 to 0.30% wherein the glass has visible transmission of at least 75%, a transmissive a* color value of-1.0 to +1.0 and a transmissive b* color value of-1.0 to +1.5, and wherein the glass comprises 0-0.12% cerium oxide. 25. The glass of claim 24, wherein the colorant portion consists essentially of: total iron (expressed as Fe2O3) 0.02 to 0.20% erbium oxide 0.02 to 0.20%. 26. The glass of claim 24, wherein the colorant portion consists essentially of: total iron (expressed as Fe2O3) 0.03 to 0.15% erbium oxide 0.03 to 0.13%. 27. The glass of claim 24, wherein the glass has a visible transmission of at least 85% at a reference thickness of about 5.6 mm. 28. The glass of claim 24, wherein the glass has a visible transmission of at least 90% at a reference thickness of about 5.6 mm. 29. The glass of claim 24, wherein the glass has a redox value (FeO/Fe2O3) no greater than 0.20. 30. A high transmittance glass comprising: SiO2 67-75% Na2O 10-20% CaO 5-15% total iron (expressed as Fe2O3) 0.01 to 0.30% erbium oxide 0.01 to 0.30% wherein the glass has visible transmission of at least 88% at a references thickness of 5.6 mm, a transmissive a* color value of-1.0 to +1.0 and a transmissive b* color value of-1.0 to +1.5, and wherein the glass comprises 0-0.12% cerium oxide. 31. The glass of claim 30, wherein the glass comprises: total iron (expressed as Fe2O3) 0.02 to 0.20% erbium oxide 0.02 to 0.20%. 32. The glass of claim 30, wherein the glass comprises: total iron (expressed as Fe2O3) 0.03 to 0.15% erbium oxide 0.03 to 0.13%. 33. The glass of claim 30, wherein the glass has a visible transmission of at least 90% at a reference thickness of 5.6 mm. 34. The glass of claim 30, wherein the glass has a visible transmission of at least 90.5% at a reference thickness of 5.6 mm. 35. The glass of claim 30, wherein the glass has a redox value (FeO/Fe2O3) no greater than 0.20. 36. The glass of claim 30, wherein the glass has a redox value (FeO/Fe2O3) of from 0.10 to 0.20. 37. The glass of claim 30, wherein the glass is a soda-lime-silica based glass.