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Proceedings Paper

The rectifying device for optical axis of sighting devices
Author(s): RongGuo Fu; BenKang Chang; YunSheng Qian; QiHai Zhan; YaFeng Qiu
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Paper Abstract

The combination photo electronic sighting device usually composed of different optical devices, including telescope and low light level night vision device or infrared thermal imaging system. Every optical axle of the optical device of the combination sighting device is needed to be parallel. When a target away enough from the sighting device is observed, if the images of the target locate on the center of the field of the vision of the different optical devices, it shows that the axis are parallel. According to this principle, a rectifying device for optical axis of sighting device is designed. It includes off-axle paraboloid reflector, the target of cross line, light sources, precision modifying devices and other devices. The target of cross line is put on the focus of the off-axle paraboloid reflector, thus it forms a parallel light beam through the off-axle paraboloid reflector, the sighting device is immerged in the parallel light beam. The observing effect is like a target of long distance. The target is connected with a precision modifying device, by moving modifying device, until the image of the target coincide with the center of the field of vision of every optical device, whose degree of deviation of the optical axle can be calculated. The paper gives the structure of the rectifying device and the way of testing. The parameters of the device is given too.

Paper Details

Date Published: 10 February 2005
PDF: 10 pages
Proc. SPIE 5638, Optical Design and Testing II, (10 February 2005); doi: 10.1117/12.572528
Show Author Affiliations
RongGuo Fu, Nanjing Univ. of Science and Technology (China)
BenKang Chang, Nanjing Univ. of Science and Technology (China)
YunSheng Qian, Nanjing Univ. of Science and Technology (China)
QiHai Zhan, Nanjing Univ. of Science and Technology (China)
YaFeng Qiu, Nanjing Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 5638:
Optical Design and Testing II
Yongtian Wang; Zhicheng Weng; Shenghua Ye; Jose M. Sasian, Editor(s)

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