Device for observing far field pattern of infrared ray laser light
文献类型：专利
| 作者 | NISHIJIMA YOSHITO; FUKUDA HIROKAZU; YAMAMOTO KOUSAKU |
| 发表日期 | 1984-09-20 |
| 专利号 | JP1984167082A |
| 著作权人 | FUJITSU KK |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Device for observing far field pattern of infrared ray laser light |
| 英文摘要 | PURPOSE:To enable to observe faithfully the far field pattern of an infrared ray laser light by eliminating the background infrared radiation from the surroundings to a screen for observing the far field pattern. CONSTITUTION:Coolant such as liquid nitrogen 32 is contained in the inner package 21 of a vacuum heat insulating container 30 incorporating the screen 25 and two infrared filters 26 and 27, thus cooling the incorporated screen 25 and each of the infrared filters 26 and 27 to a low temperature. The screen 25 is irradiated with the infrared laser light 33 from one infrared ray transmitting window 28 through the infrared filter 26 in this state, resulting in the image pickup of the irradiated pattern through the other infrared ray transmitting window 29 and the infrared filter 27. Such a manner enables to inhibit the infrared radiation from the screen 25 and the infrared filters 26 and 27 themselves because those members are cooled. Since the background infrared radiation from outside is eliminated by said container 30, etc., the far field pattern of the infrared laser light can be observed faithfully. |
| 公开日期 | 1984-09-20 |
| 申请日期 | 1983-03-11 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/62876]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | FUJITSU KK |
| 推荐引用方式 GB/T 7714 | NISHIJIMA YOSHITO,FUKUDA HIROKAZU,YAMAMOTO KOUSAKU. Device for observing far field pattern of infrared ray laser light. JP1984167082A. 1984-09-20. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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