中国科学院机构知识库网格系统: Self Imaging technique for refocusing an aerospace camera (EI CONFERENCE)

中国科学院机构知识库网格

Chinese Academy of Sciences Institutional Repositories Grid

Self Imaging technique for refocusing an aerospace camera (EI CONFERENCE)

文献类型：会议论文


作者	Li W.; Li W.; Wang X.; Wang X.; Wang X.; Li Z.; Li Z.
出版日期	2005
会议名称	ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005
会议地点	Changchun, China
关键词	A novel auto-focusing technique using a self imaging approach is developed for an aerospace camera having large aperture and long focus. Its optical system consists of an emitting system receiving system and two penta-prisms. Emitting system has three parts: a light source beamsplitter and aim slit. The receiving system includes a field lens two separate lenses and CCD. Using two little penta-prisms instead of a large planar mirror makes the autofocus system simple and compact. CCD was used as photoelectric converting device. A defocused signal is acquired by measuring the change of the two slit self-images position imaged on the CCD. A simple and compact construction of the auto-focusing system was proposed. The algorithm to calculate the moving of the slit-self images position was analyzed in order to achieve subpixel position estimation. The results of the experiments show a 10m focusing precision. The system demonstrates high resolution easy adjustment and high reliability.
收录类别	EI
源URL	[http://ir.ciomp.ac.cn/handle/181722/33615]
专题	长春光学精密机械与物理研究所_中科院长春光机所知识产出_会议论文
推荐引用方式 GB/T 7714	Li W.,Li W.,Wang X.,et al. Self Imaging technique for refocusing an aerospace camera (EI CONFERENCE)[C]. 见:ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005. Changchun, China.

入库方式： OAI收割

来源：长春光学精密机械与物理研究所

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