机构

• 长春光学精密机械与物... [4]

采集方式

• OAI收割 [4]

内容类型

• 会议论文 [4]

发表日期

• 2013 [3]
• 2006 [1]

学科主题

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浏览/检索结果: 共4条，第1-4条 帮助 限定条件 内容类型：会议论文    专题：长春光学精密机械与物理研究所    第一署名单位    第一作者单位    通讯作者单位     条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择提交时间升序提交时间降序题名升序题名降序作者升序作者降序发表日期升序发表日期降序 Luminescence and energy transfer in Ca3Sc2Si 3O12:Ce3+,Mn2+ white LED phosphors 会议论文  OAI收割 P.O. Box 211, Amsterdam, 1000 AE, Netherlands 作者:  Zhang X.;  Liu Y.;  Zhang J.;  Zhang J.;  Zhang J. 收藏  |  浏览/下载：36/0  |  提交时间：2014/05/15 LOS stabilization and gyro configuration analysis for roll-pitch seeker 会议论文  OAI收割 3rd International Conference on Advanced Design and Manufacturing Engineering, ADME 2013, July 13, 2013 - July 14, 2013, Anshan, China 作者:  Liu H. 收藏  |  浏览/下载：45/0  |  提交时间：2014/05/15 Luminescence and energy transfer in Ca3Sc2Si 3O12:Ce3+,Mn2+ white LED phosphors (EI CONFERENCE) 会议论文  OAI收割 作者:  Luo Y.;  Zhang J.;  Zhang J.;  Zhang J.;  Wang X. 收藏  |  浏览/下载：31/0  |  提交时间：2013/03/25 Expanded emission spectra ranging from green to red are reported in Ca 3Sc2Si3O12 (CSS):Ce 3+  Mn2+ silicate garnets. Mn2+ may occupy Ca2 site (Mn2+(I)) to generate a yellow emission band at 574 nm or Sc3 site (Mn2+(II)) with red emission band at 680 nm. Efficient energy transfers from the green emitting Ce3+ to both Mn2+(I) and Mn2+(II) occur upon blue excitation into Ce3+. Concentration dependence of Mn2+ emission is analyzed based on Ce3+-Mn2+ energy transfer  steady state rate equations  and fluorescence lifetimes. Energy transfer efficiency (nT) and rate (W) are calculated with values as high as 45% and 14.01106 s-1  respectively. 2011 Elsevier B.V.   Non-contact and on-line cone diameter measuring based on high speed linear CCD (EI CONFERENCE) 会议论文  OAI收割 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 2, 2005 - November 5, 2005, Zian, China Guohui Z.; Jianhua W. 收藏  |  浏览/下载：20/0  |  提交时间：2013/03/25 The remarkable improvement of sensing and processing hardware performance makes the non-contact  on-line  high accuracy and high speed measuring possible by means of linear CCD. The goal of this pager is to describe the key questions on designing the cone diameter detecting system by linear CCD. This paper first describes the detecting scheme. In particular  the factors affecting accuracy  such as resolution  voltage difference between neighbor pixels  detecting rate and so on  are analyzed  and the quantitative estimation equations are provided. CCD takes on the photoelectric translation and measuring component double functions  so the waveform of CCD output signal and the affecting factors merit deep discussion. On the basis of discussion  several principles that can be used to improve the boundary recognition accuracy are presented.