| Optical read unit for reading a moving information carrier, in particular for reading a video disc | |
| KLEUTERS WILHELM JOSEF; VAN ROSMALEN GERARD EDUARD; BIERHOFF MARTINUS PETRUS MARIA; IMMINK KORNELIS ANTONIE | |
| 1981-11-05 | |
| 著作权人 | N.V. PHILIPS' GLOEILAMPENFABRIEKEN |
| 专利号 | DE2860916D1 |
| 国家 | 德国 |
| 文献子类 | 授权发明 |
| 其他题名 | Optical read unit for reading a moving information carrier, in particular for reading a video disc |
| 英文摘要 | An optical read unit for reading radiation-reflecting video discs comprises a semiconductor laser which with the aid of a scan wobbler and a focussing wobbler is moved at high frequency in two directions relative to the video disc, a radial direction for tracking purposes and a direction normal to the disc for the purpose of automatic focussing. The semiconductor diode laser is mounted on a metal radiation source carrier which is connected to a heat sink for carrying off the heat with a low temperature gradient, and is driven by piezo-electric plates. |
| 公开日期 | 1981-11-05 |
| 申请日期 | 1978-12-01 |
| 状态 | 失效 |
| 内容类型 | 专利 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/33210]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | N.V. PHILIPS' GLOEILAMPENFABRIEKEN |
| 推荐引用方式 GB/T 7714 | KLEUTERS WILHELM JOSEF,VAN ROSMALEN GERARD EDUARD,BIERHOFF MARTINUS PETRUS MARIA,et al. Optical read unit for reading a moving information carrier, in particular for reading a video disc. DE2860916D1. 1981-11-05. |
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