发明名称 |
OPTICAL HEAD FOR OPTICAL RECORDER/REPRODUCER |
摘要 |
<p>An optical head for recording or reproducing a signal on or from an optical recording medium comprising a light source, an objective lens for condensing light emitted from the light source to the optical recording medium, and a light-separating means arranged between the light source and the objective lens in order to separate the light reflected from the optical recording medium from the light emitted from the light source is characterized in that the light-separating means consists of a first glass, a multilayer film formed on the first glass, and an adhesive layer arranged on the multilayer film in order to bond a second glass onto the multilayer film, and the majority of the light emitted from the light source enters into the light-separating means through the first glass and is reflected by the multilayer film.</p> |
申请公布号 |
WO2005119669(A1) |
申请公布日期 |
2005.12.15 |
申请号 |
WO2005JP09946 |
申请日期 |
2005.05.31 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.;WADA, HIDENORI;MIZUNO, SADAO;KOMMA, YOSHIAKI;MATSUZAKI, KEIICHI |
发明人 |
WADA, HIDENORI;MIZUNO, SADAO;KOMMA, YOSHIAKI;MATSUZAKI, KEIICHI |
分类号 |
G11B7/135;(IPC1-7):G11B7/135 |
主分类号 |
G11B7/135 |
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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