推扫式航空遥感器像面调焦机构设计

陈伟; 丁亚林; 惠守文; 聂品; 于春风

doi:10.3788/CO.20120501.0030

Volume 5 Issue 1

Feb. 2012

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Article Contents

Chinese Optics > 2012 > 5(1): 30-34.

CHEN Wei, DING Ya-lin, HUI Shou-wen, NIE Pin, YU Chun-feng. Design of image plane focusing structure for push-scan aerial remote sensing instrument[J]. Chinese Optics, 2012, 5(1): 30-34. doi: 10.3788/CO.20120501.0030

Citation:

CHEN Wei, DING Ya-lin, HUI Shou-wen, NIE Pin, YU Chun-feng. Design of image plane focusing structure for push-scan aerial remote sensing instrument[J]. Chinese Optics, 2012, 5(1): 30-34. doi: 10.3788/CO.20120501.0030

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Design of image plane focusing structure for push-scan aerial remote sensing instrument

doi: 10.3788/CO.20120501.0030

1.
Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;
2.
Graduate University of Chinese Academy of Sciences, Beijing 100039, China

Received Date: 08 Nov 2011
Rev Recd Date: 23 Nov 2011
Publish Date: 10 Feb 2012

Abstract

Abstract

To get higher accuracy ground sampled distances and to improve the imaging resolution for aerial remote sensing instruments, this paper analyzes the reasons that a remote sensing instrument is out of focus. Based on the characteristics and structures of the optical system for a push-scan aerial remote sensing instrument, it designs an image plane focusing structure to compensate the motion error of the focusing structure. In design, an eccentric cam with inner and outer curves is used to ensure the position stabilization of the CCD sensor when the remote sensing instrument is imaging. The motion error is tested to verify the validity of the simulation result. The test shows that the error is less than 0.04 mm, which meets using demands. The focusing method of moving focal plane proposed is suitable for aerial remote sensing instruments whose focal length is shorter and size is smaller.
- aerial remote sensor,
- focal plane focusing,
- cam,
- out of focus,
- line guide rail

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References(1)

References

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