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Design of improved Köhler illumination for full-field optical coherence tomography system 会议论文
Chengdu, China, 2018-06-26
作者:  Yang, Fanfan;  Wang, Xingfeng;  Lei, Jiao;  Chen, Guoqing;  Yang, Jianfeng
收藏  |  浏览/下载：36/0  |  提交时间：2019/03/22
Optical performance enhancement of light-emitting diodes with quantum dots through new remote type structure 会议论文
作者:  Lei, Xiang;  Zheng, Huai;  Liu, Peizhao;  Guo, Xing;  Chu, Jingcao
收藏  |  浏览/下载：2/0  |  提交时间：2019/12/05
利用图像的灰度值和参考星来计算钡释放实验的释放效率 会议论文
第二十六届全国空间探测学术研讨会, 海南, 2013
谢良海; 李磊; 王劲东; 陶然; 程炳钧; 张艺腾
收藏  |  浏览/下载：44/0  |  提交时间：2014/04/30
High power diode laser with beam coupling (EI CONFERENCE) 会议论文
Optoelectronic Materials and Devices III, October 27, 2008 - October 30, 2008, Hangzhou, China
Gu Y.; Wang L.; Feng G.; Shan X.; Yin H.; Liu Y.
收藏  |  浏览/下载：52/0  |  提交时间：2013/03/25
As the increasing applications of the semiconductor lasers in the laser processing  the single 2-D stack optic-power density has not satisfied the actual requirements. It demands to couple several diode laser stack beams to one to improve the brightness  and it becomes the central issue to adopt the appropriate beam coupling technology which would offer high quality and high efficiency. In this paper  it mainly introduces the beam shaping and the technology of spatial coupling  polarization coupling  and wavelength coupling. The coupling key elements are presented and indicated. Finally  the development of the diode laser on beam coupling in our country fell behind through analyzing the statement of the world. Our lab is studying on polarization coupling and wavelength coupling. We gain some results by phase  which the polarization coupling efficiency can achieve 90% for two LD stacks with seven bars whose luminous wavelength is 975nm and980nm.By two 808nm diode laser coupling  the efficiency of 60% can be achieved after focusing to the beam size of 22mm2. 2008 SPIE.  
The application of auto-controlled liquid crystal light valve arrays to photolithography shutter (EI CONFERENCE) 会议论文
ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005, Changchun, China
Chen Y.; Liang L.; He H.
收藏  |  浏览/下载：12/0  |  提交时间：2013/03/25
Photolithography shutter is usually used to control exposure in order to obtain patterns of code disc and metrology grating which are the core components of optical shaft encoder. But perforated film as photolithography shutter has many disadvantages such as taking too long time to perforate  easily making wrong code  lower reusable ratio. Mathematical models for resist property  luminous efficiency and exposure have been established by deducing their relations for avoiding the disadvantages  which provides the theory of using liquid crystal light valve (LCLV) replacing proforated film. Based on operating principles of LCLV and control theories of photolithography shutter  the principle diagram of control circuit of LCLV arrays has been designed according to theirs control principles. In the control system  LCLV arrays as photolithography shutter are realized by adopting DS75451 to drive them and using AT89C51 chip to control them. By photolithographic experiment  the patterns of code disc are good  the edges of lines are vertical  it indicates LCLV arrays as photolithography shutter may control exposure and light passing accords with the intending requires. It proves using LCLV arrays replacing perforated film as photolithography shutter is feasible completely.  
Road Luminaire' Mesoptic Luminous Efficiency Analysis 会议论文
Shangri La, PEOPLES R CHINA, AUG 22-23, 2011
作者:  Huang Ke[1];  Weng Ji[1];  Hu Ying-kui[1]
收藏  |  浏览/下载：1/0  |  提交时间：2019/11/28
MESOPIC LUMINOUS EFFICIENCY FUNCTIONS BASED ON REACTION TIME EXPERIMENTS 会议论文
北京, 2007年1月1日
作者:  YINGKUI HU[1];  ZHONGLIN CHEN[1];  YINGYING LIU[1];  QINGWEN ZHANG[1]
收藏  |  浏览/下载：10/0  |  提交时间：2019/11/30
Dependence of luminous efficiency of oleds doped rare earth ions on applied voltage 会议论文
Changchun, China, September 20, 2005 - September 23, 2005
作者:  Liu, J.[1,2];  Chen, Xi M.[1];  Liu, Y.[1,2];  Duan, Chang K.[1]
收藏  |  浏览/下载：5/0  |  提交时间：2019/11/30
Development of the Research on High-power WLEDs (CPCI-S收录) 会议论文
POWDER TECHNOLOGY AND APPLICATION III
作者:  Hou, Qianqian[1];  Zhang, Peixin[1];  Zhang, Mingfang[1];  Lu, Zhengwu[2];  Ren, Xiangzhong[1]
收藏  |  浏览/下载：8/0  |  提交时间：2019/04/15

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