Patent application number | Description | Published |
20080293556 | OPTICAL GLASS, PREFORM FOR PRECISION PRESS-MOLDING, OPTICAL ELEMENT, AND METHODS FOR MANUFACTURING THE SAME - Provided is an optical glass comprising, denoted as molar percentages:
| 11-27-2008 |
20090042711 | OPTICAL GLASS, PRECISION-PRESSMOLDING PREFORM AND OPTICAL ELEMENT - [Object] To provide a high-refractivity high-dispersion optical glass having excellent stability | 02-12-2009 |
20110105294 | OPTICAL GLASS, PRECISION PRESS-MOLDING PREFORM, OPTICAL ELEMENT AND PROCESS FOR PRODUCING THE SAME - [Problems to be Solved] | 05-05-2011 |
20110263410 | METHOD FOR PRODUCING GLASS, OPTICAL GLASS, GLASS MATERIAL FOR PRESS MOLDING, OPTICAL ELEMENT AND METHODS FOR PRODUCING SAME - A process for producing a glass in the production of a glass molded article formed of an optical glass by melting and clarifying a glass raw material to prepare a molten glass and molding said molten glass,
| 10-27-2011 |
20110289970 | PREFORMS FOR PRECISION PRESS MOLDING, OPTICAL ELEMENTS, AND METHODS OF MANUFACTURING THE SAME - Preforms for precision press molding made of optical glass, optical elements, and methods of manufacturing the same are provided. The preforms are suited to precision press molding having a broad range of dispersion characteristics, a low glass transition temperature, a low sag point, and good resistance to devitrification while containing no PbO. The optical element is obtained by precision press molding the preform. One example of the preform has a refractive index (nd) of greater than or equal to 1.7 and an Abbé number (νd) of less than or equal to 32. The other example of the preform has an Abbé number (νd) exceeding 32. | 12-01-2011 |
20120035044 | Optical glass, preform for precision press molding, optical element and method of manufacturing thereof - An optical glass having a refractive index n | 02-09-2012 |
20120309605 | OPTICAL GLASS, PREFORM FOR PRECISION PRESS MOLDING, AND OPTICAL ELEMENT - 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. | 12-06-2012 |
20130040800 | OPTICAL GLASS, PREFORM FOR PRECISION PRESS MOLDING, OPTICAL ELEMENT AND METHOD OF MANUFACTURING THEREOF - An optical glass having a refractive index n | 02-14-2013 |
20130079213 | OPTICAL GLASS, PREFORM FOR PRECISION PRESS-MOLDING, OPTICAL ELEMENT, METHODS FOR MANUFACTURING THEREOF, AND IMAGING DEVICE - An optical Glass characterized by comprising, denoted as molar percentages: B | 03-28-2013 |