Optical information reproduction apparatus having a semiconductor laser device light source
文献类型：专利
| 作者 | SUYAMA, TAKAHIRO; MATSUMOTO, MITSUHIRO; TANEYA, MOTOTAKA |
| 发表日期 | 1999-06-01 |
| 专利号 | US5909425 |
| 著作权人 | SHARP KABUSHIKI KAISHA |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Optical information reproduction apparatus having a semiconductor laser device light source |
| 英文摘要 | An optical information reproduction apparatus includes a semiconductor laser device as a light source which provides oscillation as periodic pulse waves upon application of a DC current. The semiconductor laser device is disposed so that an optical distance L from a light-emitting point of the semiconductor laser device to a recording surface of an optical recording medium satisfies the following relationship: TPTP+(2L/C), where T is a period of pulse waves which are output from the semiconductor laser device in absence of a returning light from the optical recording medium; TP is a pulse width of the respective pulse waves which is defined as a width of a portion of the respective pulse waves, the portion having intensities which correspond to 10% or more of the peak intensity of the respective pulse waves; and C is a speed of light through air. |
| 公开日期 | 1999-06-01 |
| 申请日期 | 1997-04-18 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/33560]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | SHARP KABUSHIKI KAISHA |
| 推荐引用方式 GB/T 7714 | SUYAMA, TAKAHIRO,MATSUMOTO, MITSUHIRO,TANEYA, MOTOTAKA. Optical information reproduction apparatus having a semiconductor laser device light source. US5909425. 1999-06-01. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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