QQ客服 官方微博 反馈留言

	レ-ザの寿命判定方法
	竹内 豊明
	1996-01-31
著作权人	オリンパス光学工業株式会社
专利号	JP1996010777B2
国家	日本
文献子类	授权发明
其他题名	レ-ザの寿命判定方法
英文摘要	PURPOSE:To judge the lifetime of a laser exactly by setting the superposition of high-frequency currents to DC bias currents of the laser to a stoppage state, detecting the luminous power of the laser and judging the lifetime of the laser. CONSTITUTION:When a discrimination instruction signal INST is inputted to a CPU 9, the CPU 9 outputs a signal maintaining the operation of the oscillation of an oscillation circuit 8 for high-frequency super-position under a stoppage state. The CPU 9 sets a set value for light emission at a low level to a decoder 28 for setting luminous power, a laser power value data is written to a memory 31 when the comparision output of a comparison circuit 27 reaches zero, and laser driving currents at that time are written to the memory 31 throught the CPU 9. An output from a photodiode 11 for monitor is transmitted as another input to the circuit 27. Consequently, laser driving currents are written to the memory 31 regarding a low-level data at a slightly large value and a data for a high-level light emission. When said writting is completed, the CPU 9 arithmetically operates the data on the basis of the value of the memory 31, thus judging the lifetime of a laser diode 5.
公开日期	1996-01-31
申请日期	1986-08-08
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/33271]
专题	半导体激光器专利数据库
作者单位	オリンパス光学工業株式会社
推荐引用方式 GB/T 7714	竹内 豊明. レ-ザの寿命判定方法. JP1996010777B2. 1996-01-31.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

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。