发明公开
EP1271491A3 Optical recording medium with readily distinguished lead-out area
审中-公开
具有容易辨认的引出区的光记录介质
- 专利标题: Optical recording medium with readily distinguished lead-out area
- 专利标题(中): 具有容易辨认的引出区的光记录介质
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申请号: EP02254074.4申请日: 2002-06-12
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公开(公告)号: EP1271491A3公开(公告)日: 2004-07-28
- 发明人: Yoon, Du-seop , Lee, Kyung-geun , Choi, Byoung-ho , Shim, Jae-seong
- 申请人: SAMSUNG ELECTRONICS CO., LTD.
- 申请人地址: 416, Maetan-dong, Paldal-gu Suwon-City, Kyungki-do KR
- 专利权人: SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人: SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人地址: 416, Maetan-dong, Paldal-gu Suwon-City, Kyungki-do KR
- 代理机构: Robinson, Ian Michael
- 优先权: KR2001034377 20010618
- 主分类号: G11B7/007
- IPC分类号: G11B7/007 ; G11B27/19 ; G11B27/24
摘要:
An optical recording medium has a user data area (120) and a lead-out area (130), wherein the user data area and the lead-out area each has grooves (123) and lands (125) formed thereon. Wobbles (105,135) are formed on at least one lateral surface of grooves of the user data area and the lead-out area, and configured such that wobble characteristics are made different between the user data area and the lead-out area. Different types of wobbles are formed on the grooves of either the user data area or the lead-out area, thereby preventing an optical pickup that performs recording/reproduction from deviating from the user data area (120). Also, in a multi-layer optical recording medium, a whole area of a recording layer is configured to have a same condition, thereby preventing deterioration in reproduction and/or recording due to a difference in light power transmittance of another recording layer.
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