レ-ザ光量制御装置
文献类型:专利
作者 | 君塚 純一; 征矢 隆志; 犬山 聡彦 |
发表日期 | 1995-07-26 |
专利号 | JP1995067819B2 |
著作权人 | キヤノン株式会社 |
国家 | 日本 |
文献子类 | 授权发明 |
其他题名 | レ-ザ光量制御装置 |
英文摘要 | PURPOSE:To always obtain the image of a prescribed density, and also, to intentionally make an image density variable, by constituting the titled device so that a reference value can be freely set without executing the adjustment of a voltage dividing resistance. CONSTITUTION:A ROM 14c stores a reference data corresponding to a light quantity level, and a microcomputer 14 selects an optional reference value data. A D/A converter 15 receives digital signals outputted from ports 01-09 of the microcomputer 14, by ports A1-A9 and converts them to analog signals, and outputs them to a current-voltage converting circuit 16. As for a changeover switch 39 being a selecting means, when this changeover switch 39 is on, an automatic mode for determining automatically a light quantity set value is set, and when said switch is off, a manual mode for making the light quantity set value manually is set. A variable resistor 40 being a voltage generating means inputs an analog input AN2 which becomes a manual reference value, to the internal memory of the microcomputer, when the changeover switch 39 is off. |
公开日期 | 1995-07-26 |
申请日期 | 1986-04-08 |
状态 | 失效 |
源URL | [http://ir.opt.ac.cn/handle/181661/33265] ![]() |
专题 | 半导体激光器专利数据库 |
作者单位 | キヤノン株式会社 |
推荐引用方式 GB/T 7714 | 君塚 純一,征矢 隆志,犬山 聡彦. レ-ザ光量制御装置. JP1995067819B2. 1995-07-26. |
入库方式: OAI收割
来源:西安光学精密机械研究所
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