发明名称 |
AN OPTICAL PICK-UP APPARATUS |
摘要 |
<p>An optical pickup apparatus according to an embodiment of the present invention, comprises an optical unit (20) for projecting a plurality of wavelengths of light, the light including a celadon light, toward a recording medium and receiving the light reflected from the recording medium to thereby detect an information signal and an error signal, and a compatible objective lens (10) for focusing a light projected from the optical unit (20) to thereby form an optical spot on a recording surface of the recording medium and applying at least three light having different wavelength ranges to be compatibly used for both the high-density and the low-density recording mediums. Accordingly, the optical pickup apparatus is capable of compatibly employing a high-density recording medium, which uses a celadon light and is slimmer than a digital versatile disc (DVD), and at least one low-density recording medium.</p> |
申请公布号 |
KR20060084687(A) |
申请公布日期 |
2006.07.25 |
申请号 |
KR20050005472 |
申请日期 |
2005.01.20 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KIM, BONG GI;PARK, SOO HAN;AHN, YOUNG MAN;YOO, JANG HOON |
分类号 |
G11B7/12;G11B7/125;G11B7/135 |
主分类号 |
G11B7/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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