Optical scanning device
文献类型：专利
| 作者 | NOGUCHI MASARU |
| 发表日期 | 1986-09-05 |
| 专利号 | JP1986200524A |
| 著作权人 | FUJI PHOTO FILM CO LTD |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Optical scanning device |
| 英文摘要 | PURPOSE:To mix and scan plural laser beams without any variation in the quantity of scanning light to each picture element by selecting oscillation wavelengths of two optical different semiconductor lasers in specific relation with a picture-element frequency and the light velocity. CONSTITUTION:Beams 41-44 from semiconductor lasers 11-14 arranged in parallel are reflected by mirrors 31-34 and made incident on a galvanometer mirror 5 to scan on a surface 7. The oscillation wavelengths lambdai and lambdaj of the mutually different lasers are selected so that ¦lambdai-lambdaj¦>=lambdailambdajM/c, where M is the picture-element frequency and (c) is the light velocity; and a beat frequency is set to >=5 times as high as the picture-element frequency. Consequently, varia tion in the quantity of scanning light to each picture element is prevented be cause of beats of the composite beam, and scan recording and scan reading is increased in precision sufficiently. |
| 公开日期 | 1986-09-05 |
| 申请日期 | 1985-03-01 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/59406]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | FUJI PHOTO FILM CO LTD |
| 推荐引用方式 GB/T 7714 | NOGUCHI MASARU. Optical scanning device. JP1986200524A. 1986-09-05. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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