COLOR STABILITY UNDER IRRADIATION WITH BLUE LIGHT

• Main Authors: LOTHAR BARTELMESS, SEBASTIAN LEUKEL, ANTOINE CARRE, PAETZOLD UWE, HAGEMANN VOLKER, JEDAMZIK RALF
• Format: Patent
• Language: English; Japanese
• Published: 09.11.2022
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; METALLURGY; MINERAL OR SLAG WOOL; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS

To provide imaging systems comprising beam guiding elements which exhibit high color stability and are therefore exceptionally suitable for use in projectors but also in applications in material processing.SOLUTION: A glass includes the following components in the specified proportions (in mass%): SiO2 50-80, B2O3 2-30, Al2O3 0-5, CaO 0-10, BaO 0-10, Li2O 0-5, Na2O 0-20, K2O 1-25, ΣR2O 5-30. The glass includes at least one first solarization component and at least one second solarization component. A proportion of the first solarization component in the glass is in a range of 0.01 to less than 1.0 ppm (mass), and a proportion of the second solarization component in the glass is in a range of 1000 to 10,000 ppm (mass).SELECTED DRAWING: Figure 1 【課題】高い色安定性を有し、プロジェクタにおいて、および材料加工における用途に際して卓越して使用され得るビームガイド部品を備えたイメージングシステムを提供する。【解決手段】以下の成分：ＳｉＯ2５０～８０、Ｂ2Ｏ3２～３０、Ａｌ2Ｏ3０～５、ＣａＯ ０～１０、ＢａＯ ０～１０、Ｌｉ2Ｏ ０～５、Ｎａ2Ｏ ０～２０、Ｋ2Ｏ １～２５、ΣＲ2Ｏ ５～３０を記載された割合（質量％）で含むガラスであって、前記ガラスは少なくとも１つの第１のソラリゼーション成分と、少なくとも１つの第２のソラリゼーション成分とを含み、ガラスにおける前記第１のソラリゼーション成分の割合は０．０１～１．０（質量）ｐｐｍ未満の範囲であり、且つガラスにおける前記第２のソラリゼーション成分の割合は１０００～１００００（質量）ｐｐｍの範囲である前記ガラス。【選択図】図１