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:
Apr. 03, 2012
Filed:
Apr. 25, 2008
Taek-seong Jeong, Suwon-si, KR;
Jae-cheol Bae, Suwon-si, KR;
Tatsuhiro Otsuka, Suwon-si, KR;
Hyun-soo Park, Seoul, KR;
Young-min Cheong, Seoul, KR;
Taek-seong Jeong, Suwon-si, KR;
Jae-cheol Bae, Suwon-si, KR;
Tatsuhiro Otsuka, Suwon-si, KR;
Hyun-soo Park, Seoul, KR;
Young-min Cheong, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A method and apparatus for recording and/or reproducing holographic data and a holographic information storage medium, wherein the apparatus for recording and/or reproducing holographic information includes an optical pickup emitting light onto a holographic information storage medium and receiving the emitted light. The optical pickup includes: a light source unit emitting a signal beam and a reference beam in a recording mode; and a focusing optical system focusing the signal beam and the reference beam on one focal point in the holographic information storage medium so that information can be recorded by using an interference pattern formed along a depth direction of the holographic information storage medium in the vicinity of the focal point, wherein the numerical aperture of the focusing optical system for the signal beam is different from the numerical aperture of the focusing optical system for the reference beam.