Semiconductor light projection apparatus and distance measurement apparatus
文献类型：专利
| 作者 | KIMURA, YUJI; ABE, KATSUNORI; ATSUMI, KINYA |
| 发表日期 | 2003-11-25 |
| 专利号 | US6654399 |
| 著作权人 | DENSO CORPORATION |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Semiconductor light projection apparatus and distance measurement apparatus |
| 英文摘要 | In performing an light emitting operation using a plurality of semiconductor light-emitting devices, these semiconductor light-emitting devices are lighted up such that the driving current is lessened and the life time of the devices is prevented from being shortened and lights can be emitted to a remote site without reducing an amount of lights. Semiconductor laser devices 23a to 23c, which emit lights through independent lenses 25a to 25c, are connected in series to each other and connected to a signal generating circuit 24, serving as a power supply, so as to perform pulse lighting, whereby making it possible to light up three semiconductor laser devices simultaneously at a driving current corresponding to one semiconductor laser device. A package of semiconductor laser devices 23a to 23c comprises three lead terminals, and an electrical connection to two lead terminals, which are electrically insulated from a metallic base, is established. If a light collection point P is positioned in the midway of the detection distance range, the shifting quantity of the laser beams is minimized over substantially the entire area so that the amount of lights can be suppressed. |
| 公开日期 | 2003-11-25 |
| 申请日期 | 2000-02-23 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/34585]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | DENSO CORPORATION |
| 推荐引用方式 GB/T 7714 | KIMURA, YUJI,ABE, KATSUNORI,ATSUMI, KINYA. Semiconductor light projection apparatus and distance measurement apparatus. US6654399. 2003-11-25. |
入库方式： OAI收割
来源：西安光学精密机械研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。