Invention Grant
US08592332B2 Optical glass, preform for precision press molding, optical element, method for manufacturing optical element
有权
光学玻璃，精密压模成形用预制件，光学元件，光学元件的制造方法
- Patent Title: Optical glass, preform for precision press molding, optical element, method for manufacturing optical element
- Patent Title (中): 光学玻璃，精密压模成形用预制件，光学元件，光学元件的制造方法
-
Application No.: US13035660Application Date: 2011-02-25
-
Publication No.: US08592332B2Publication Date: 2013-11-26
- Inventor: Tomoaki Negishi
- Applicant: Tomoaki Negishi
- Applicant Address: JP Tokyo
- Assignee: Hoya Corporation
- Current Assignee: Hoya Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2010-094363 20100415
- Main IPC: C03C3/155
- IPC: C03C3/155 ; C03C3/15 ; C03C3/066
Abstract:
The present invention relates to an optical glass with a refractive index nd of 1.89 or higher and an Abbé number v(nu)d of 28 to 36; a preform for precision press molding and an optical element that are comprised of this glass; and a method for manufacturing the optical element.
Public/Granted literature
Information query
