发明名称 |
Optical recording/reproducing apparatus |
摘要 |
An optical recording/reproducing apparatus featuring stable information signal detection ability and reduced number of components. The optical recording/reproducing apparatus includes: a plurality of light sources emitting lights with different wavelengths for use in recording/reproducing information onto/from various types of optical recording media of different recording densities, in which at least two lights emitted from the light sources have polarization components orthogonal to each other; an objective lens for focusing a light from each of the light sources to a corresponding optical recording medium; a collimating lens disposed between the light sources and the objective lens for collimating lights from the light sources; a hologram element installed between the collimating lens and the objective lens for refracting a light emitted from one of the light sources, in which the light to be refracted is selected by wavelength and polarization components; and a photodetector receiving a light that is reflected from the corresponding optical recording medium after being focused by the objective lens.
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申请公布号 |
US2006274631(A1) |
申请公布日期 |
2006.12.07 |
申请号 |
US20060430847 |
申请日期 |
2006.05.10 |
申请人 |
SAMSUNG ELECTRO-MECHANICS CO., LTD |
发明人 |
YOO JANG-HOON;JANG HAG-HYUN;PARK SOO-HAN;JEONG SOO-JIN;HEOR TAE-YOUN;KIM BONG-GI |
分类号 |
G11B7/125;G11B7/135 |
主分类号 |
G11B7/125 |
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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