Theoretical analysis and verification of Ronchi grating auto-collimated focusing for aerial remote camera

doi:10.3788/OPE.20202806.1236

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	Theoretical analysis and verification of Ronchi grating auto-collimated focusing for aerial remote camera
	X.-J. Liu,Y.-L. Ding,F. Li,Z.-C. Chen,G.-Q. Yuan and Z.-M. Liu
刊名	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
	2020
卷号	28 期号:6 页码:1236-1244
ISSN号	1004924X
DOI	10.3788/OPE.20202806.1236
英文摘要	To address issues such as auto-focusing system fault analysis and component selection, and to improve the focusing accuracy of aerial remote cameras, this article offered insights into the auto-collimated focusing technology based on the Ronchi grating. First, in this paper, several common focusing methods of both domestic and foreign aerial cameras were summarized and compared. Then, the composition and operating principle of optoelectronic auto-collimated focusing systems based on the Ronchi grating were introduced, the mathematical model was established, and the simulation curves of the focusing waveform with different imaging positions were presented. To measure the focal distances, the concept of the defocusing evaluation factor was proposed. Next, the three factors that affect the focusing accuracy of the diffraction effect and the aberration of the optical system, the period selection of the Ronchi grating, and the energy distribution of the light source were analyzed. The influence of the Ronchi grating period selection method was then presented. Finally, the experimental results verify the validity of the simulation results and show that the peak-to-peak ratio of the focusing waveform is 0.82, corresponding to an average focusing detection resolution of 10% at 0.05 mm. 2020, Science Press. All right reserved.
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内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/64949]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	X.-J. Liu,Y.-L. Ding,F. Li,Z.-C. Chen,G.-Q. Yuan and Z.-M. Liu. Theoretical analysis and verification of Ronchi grating auto-collimated focusing for aerial remote camera[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2020,28(6):1236-1244.
APA	X.-J. Liu,Y.-L. Ding,F. Li,Z.-C. Chen,G.-Q. Yuan and Z.-M. Liu.(2020).Theoretical analysis and verification of Ronchi grating auto-collimated focusing for aerial remote camera.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,28(6),1236-1244.
MLA	X.-J. Liu,Y.-L. Ding,F. Li,Z.-C. Chen,G.-Q. Yuan and Z.-M. Liu."Theoretical analysis and verification of Ronchi grating auto-collimated focusing for aerial remote camera".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 28.6(2020):1236-1244.