Invention Grant
- Patent Title: Fluorine-free optical glass
- Patent Title (中): 无氟光学玻璃
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Application No.: US11866210Application Date: 2007-10-02
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Publication No.: US08114796B2Publication Date: 2012-02-14
- Inventor: Simone Monika Ritter , Ute Woelfel
- Applicant: Simone Monika Ritter , Ute Woelfel
- Applicant Address: DE Mainz
- Assignee: Schott AG
- Current Assignee: Schott AG
- Current Assignee Address: DE Mainz
- Agent Michael J. Striker
- Priority: DE102006047783 20061006
- Main IPC: C03C3/19
- IPC: C03C3/19 ; C03C3/16 ; C03C3/21 ; C03C3/17 ; C03C3/14 ; C03C3/15 ; C03C3/155 ; C03C3/145
Abstract:
The lead-free and fluorine-free optical glass has a refractive index of 1.60≦nd≦1.64 and an Abbe number of from 56≦vd≦64, a transformation temperature less than or equal to 590° C., can be precise pressed and is stable to cystallization. The glass has the following, composition (in weight-% based on oxide content. P2O5, 26-35; B2O3, 10-15; Al2O3, 5.5-10; BaO, 25-37; SrO, 0-6; CaO, 8-15; ZnO, 3-10; Bi2O3, 0-8; Na2O, 0-2; K2O, 0-2; WO3, 0-10; La2O3, 0-2; Nb2O5, 0-1; TiO2,0-
Public/Granted literature
- US20080085826A1 FLUORINE-FREE OPTICAL GLASS Public/Granted day:2008-04-10
Information query
