Optical information recorder
文献类型：专利
| 作者 | OTSUKA YASUMASA; OKUBO MASAHARU; ASAI ATSUSHI; MURASAWA YOSHIHIRO; SASAME HIROSHI |
| 发表日期 | 1986-06-28 |
| 专利号 | JP1986141465A |
| 著作权人 | CANON KK |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Optical information recorder |
| 英文摘要 | PURPOSE:To detect more exactly the life of an optical information source by increasing the time information on the emission time of the optical information source stored in a measuring storage means by a correction means when the output of the optical information source is high and decreasing said information when the output is low. CONSTITUTION:A clock pulse generator 3' such as crystal oscillator is connected to a counter 3 which counts the number of clock pulses as the time information received during the duration period of the emission signal of a laser 2. A memory 4 which adds and stores successively the output from the counter 3 is connected to a comparator 5 as a comparing means. The measuring storage means 4' is constituted with such counter 3, the clock pulse generating means 3' and the memory 4. The comparator 5, which is connected to a controller 6 as the correction means, compares the prescribed level set in accordance with the average service life of the laser and the emission time of the laser 2 stored in the memory 4 and outputs a signal Su to announce the termination of the service life of the laser. |
| 公开日期 | 1986-06-28 |
| 申请日期 | 1984-12-14 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/68748]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | CANON KK |
| 推荐引用方式 GB/T 7714 | OTSUKA YASUMASA,OKUBO MASAHARU,ASAI ATSUSHI,et al. Optical information recorder. JP1986141465A. 1986-06-28. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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