Title:
光学ガラス、精密プレス成形用プリフォーム、光学素子
Document Type and Number:
Japanese Patent JP5659023
Kind Code:
B2
Abstract:
The present invention relates to an optical glass with a high refractive index and good precision press moldability, and a preform for precision press molding and an optical element that are comprised of the optical glass. The present invention further relates to a method of manufacturing an optical element, a lens unit being equipped with an optical element and an image pickup device being equipped with a lens unit.
Inventors:
藤原 康裕
三上 修平
高澤 洋樹
三上 修平
高澤 洋樹
Application Number:
JP2010549399A
Publication Date:
January 28, 2015
Filing Date:
February 03, 2010
Export Citation:
Assignee:
ＨＯＹＡ株式会社
International Classes:
C03C3/068; G02B1/00
Domestic Patent References:
| JP2005170782A | 2005-06-30 | |||
| JP2007261877A | 2007-10-11 | |||
| JP2007254224A | 2007-10-04 | |||
| JP2006131450A | 2006-05-25 | |||
| JPH0316932A | 1991-01-24 | |||
| JP2009001439A | 2009-01-08 | |||
| JPH07118033A | 1995-05-09 | |||
| JP2005170782A | 2005-06-30 | |||
| JP2007261877A | 2007-10-11 | |||
| JP2007254224A | 2007-10-04 | |||
| JP2006131450A | 2006-05-25 | |||
| JPH0316932A | 1991-01-24 |
Foreign References:
| WO2004054937A1 | 2004-07-01 | |||
| WO2004054937A1 | 2004-07-01 |
Attorney, Agent or Firm:
Patent business corporation patent firm Sykes