Invention Grant
US09594192B2 Optical element, optical system, and method of manufacturing optical element
有权
光学元件，光学系统和制造光学元件的方法
- Patent Title: Optical element, optical system, and method of manufacturing optical element
- Patent Title (中): 光学元件，光学系统和制造光学元件的方法
-
Application No.: US14642984Application Date: 2015-03-10
-
Publication No.: US09594192B2Publication Date: 2017-03-14
- Inventor: Daisuke Sano
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Rossi, Kimms & McDowell LLP
- Priority: JP2014-046107 20140310
- Main IPC: G02B1/00
- IPC: G02B1/00 ; G02B1/14 ; G02B5/00 ; G02B3/00 ; G02B13/06 ; G02B27/00
Abstract:
Provided is an optical element, including optical glass as a base material and having an optical surface and a non-optical surface. In the optical element, the optical glass has a Knoop hardness of 600 N/mm2 or more, and the non-optical surface has a coating film layer formed thereon, the coating film layer containing a pigment as a color material and having a refractive index of 1.65 or more.
Public/Granted literature
- US20150253467A1 OPTICAL ELEMENT, OPTICAL SYSTEM, AND METHOD OF MANUFACTURING OPTICAL ELEMENT Public/Granted day:2015-09-10
Information query
IPC分类:
| G | 物理 |
| G02 | 光学 |
| G02B | 光学元件、系统或仪器 |
| G02B1/00 | 按制造材料区分的光学元件；用于光学元件的光学涂层 |
