| Patent Number |
Title Of Patent |
Date Issued |
| 7602679 |
Optical lens and information recording and reproducing device |
October 13, 2009 |
| An optical lens to be arranged in an optical information recording and/or reproducing apparatus includes at least one lens main body; an antireflective film arranged on a first lens surface which has the largest surface angle on an outer peripheral portion in an effective radius of l |
| 7599119 |
Antireflection coating, optical element, and optical transceiver module |
October 6, 2009 |
| An antireflection coating provided on an optical element which passes through at least two wavelengths of light in the wavelength range of 1300-1600 nm, wherein the antireflection coating comprises: a high refractive index layer; a low refractive index layer having a refractive index |
| 7554736 |
Objective lens and optical pickup apparatus |
June 30, 2009 |
| An objective lens for converging a monochromatic light flux having a specific wavelength in a range of 350 to 450 nm on an optical information recording medium while the objective lens is placed facing the optical information recording medium, the objective lens containing a lens body |
| 7161744 |
Objective lens and optical pickup apparatus |
January 9, 2007 |
| An objective lens for converging a monochromatic light flux having a specific wavelength in a range of 350 to 450 nm on an optical information recording medium while the objective lens is placed facing the optical information recording medium, the objective lens comprising: a lens body |
| 7079323 |
Surface treatment method and optical part |
July 18, 2006 |
| A surface treating method of forming a coating layer on a base material, comprising conducting a plasma processing under an atmospheric pressure for the base material so as to form a coating layer on the base material having at least one of a curved surface and an uneven surface. |
