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:
May. 13, 2008
Filed:
Jun. 05, 2003
Tae-kyung Kim, Seoul, KR;
Chong-sam Chung, Gyeonggi-do, KR;
Young-man Ahn, Gyeonggi-do, KR;
Byung-in MA, Gyeonggi-do, KR;
Jong-bae Kim, Seoul, KR;
Seok-jung Kim, Gyeonggi-do, KR;
Tae-kyung Kim, Seoul, KR;
Chong-sam Chung, Gyeonggi-do, KR;
Young-man Ahn, Gyeonggi-do, KR;
Byung-in Ma, Gyeonggi-do, KR;
Jong-bae Kim, Seoul, KR;
Seok-jung Kim, Gyeonggi-do, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A compatible optical pickup compatibly using a high density recording medium and at least one low density recording medium, includes an objective lens to form a light spot suitable for use on a recording surface of the high density recording medium by focusing a corresponding incident light beam with a high NA suitable for the high density recording medium and a light spot suitable for use on another recording surface of the low density recording medium by focusing another corresponding incident light beam, and an actuator provided to apply tilt to the objective lens. The light beam for the low density recording medium is incident on the objective lens as a divergent beam. When the objective lens is shifted in a radial direction, a tilt is applied to the objective lens corresponding to the shift.