Bar code detector
文献类型：专利
| 作者 | NAKASUJI AKIO; KOBAYASHI KEIICHI; TASHIRO MARIE; DAN MASAHIRO |
| 发表日期 | 1992-10-07 |
| 专利号 | JP1992281585A |
| 著作权人 | 松下電器産業株式会社 |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Bar code detector |
| 英文摘要 | PURPOSE:To improve reading performance by increasing the shaping accuracy of a laser beam in a bar code detector which performs the reading of a bar code by performing scan by the laser beam. CONSTITUTION:The laser beam emitted from an InGaAlP semiconductor laser 1 is converted to an elliptical laser beam 3 in which the ratio X/Y of a beam diameter X of horizontal mode and a beam diameter Y of vertical mode goes to around 2 at any position within a reading range by converging by an aspherical lens 2, and the beam shape of the elliptical laser beam 3 in the minor axial direction can be set less than 0.28mm at any position within the reading range by using such elliptical laser beam 3, and the reading of the bar code with the minimum bar width 0.19mm can be performed by conforming the minor axial direction of the elliptical laser beam 3 to a scanning direction. |
| 公开日期 | 1992-10-07 |
| 申请日期 | 1991-03-11 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/50681]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | 松下電器産業株式会社 |
| 推荐引用方式 GB/T 7714 | NAKASUJI AKIO,KOBAYASHI KEIICHI,TASHIRO MARIE,et al. Bar code detector. JP1992281585A. 1992-10-07. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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