The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2012
Filed:
Sep. 16, 2009
Jin-kyung Lee, Suwon-si, KR;
No-cheol Park, Seoul, KR;
Kyung-geun Lee, Seoul, KR;
Yong-joong Yoon, Seoul, KR;
Jin-kyung Lee, Suwon-si, KR;
No-cheol Park, Seoul, KR;
Kyung-geun Lee, Seoul, KR;
Yong-joong Yoon, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A compatible near field optical recording/reproducing apparatus includes a solid immersion lens unit including a first lens, which has an aspherical surface in which light incident from the first light source is condensed, and a second lens, which realizes a high numerical aperture via a near field effect by light condensed by the first lens and has an aspherical surface. An effective beam size-controlling device controls an effective size of a light beam transmitted to the solid immersion lens unit such that either near field light or far field light is transmitted to an information storage medium by the solid immersion lens unit and a focal point adjusting optical system adjusts a focal position of light transmitted to the information storage medium according to the type of the information storage medium.