Optical design of space detailed survey camera in the middle or high orbit

	Optical design of space detailed survey camera in the middle or high orbit
	Wang, Y.; W. Liu; H. Fu; D. Zhang; Z. Wei and R. Feng
	2016
发表期刊	Zhongguo Jiguang/Chinese Journal of Lasers
卷号	43 期号:1
摘要	The accelerated aging tests under electric stress for one type of LED lamp are conducted, and the differences between online and offline tests of the degradation of luminous flux are studied in this paper. The transformation of the two test modes is achieved with an adjustable AC voltage stabilized power source. Experimental results show that the exponential fitting of the luminous flux degradation in online tests possesses a higher fitting degree for most lamps, and the degradation rate of the luminous flux by online tests is always lower than that by offline tests. Bayes estimation and Weibull distribution are used to calculate the failure probabilities under the accelerated voltages, and then the reliability of the lamps under rated voltage of 220 V is estimated by use of the inverse power law model. Results show that the relative error of the lifetime estimation by offline tests increases as the failure probability decreases, and it cannot be neglected when the failure probability is less than 1%. The relative errors of lifetime estimation are 7.9%, 5.8%, 4.2%, and 3.5%, at the failure probabilities of 0.1%, 1%, 5%, and 10%, respectively. (C) 2016 Optical Society of America
文章类型	期刊
收录类别	EI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/57258
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Wang, Y.,W. Liu,H. Fu,et al. Optical design of space detailed survey camera in the middle or high orbit[J]. Zhongguo Jiguang/Chinese Journal of Lasers,2016,43(1).
APA	Wang, Y.,W. Liu,H. Fu,D. Zhang,&Z. Wei and R. Feng.(2016).Optical design of space detailed survey camera in the middle or high orbit.Zhongguo Jiguang/Chinese Journal of Lasers,43(1).
MLA	Wang, Y.,et al."Optical design of space detailed survey camera in the middle or high orbit".Zhongguo Jiguang/Chinese Journal of Lasers 43.1(2016).

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