DOI: 10.17586/1023-5086-2019-86-06-58-63

Study of zero position's variation for optical sight by using а CCD

Zhao, Yuanyuan, Xiao, Zuojiang, Liang, Xu, Bao, Lei

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Yuanyuan Zhao, Zuojiang Xiao, Xu Liang, and Lei Bao Study of zero position's variation for optical sight by using а CCD (Исследование отклонений нулевого положения марки оптического прицела с использованием ПЗС-матрицы) [на англ. яз.] // Оптический журнал. 2019. Т. 86. № 6. С. 58–63. http://doi.org/10.17586/1023-5086-2019-86-06-58-63

Yuanyuan Zhao, Zuojiang Xiao, Xu Liang, and Lei Bao Study of zero position's variation for optical sight by using а CCD (Исследование отклонений нулевого положения марки оптического прицела с использованием ПЗС-матрицы) [in English] // Opticheskii Zhurnal. 2019. V. 86. № 6. P. 58–63. http://doi.org/10.17586/1023-5086-2019-86-06-58-63

For citation (Journal of Optical Technology):

Yuanyuan Zhao, Zuojiang Xiao, Xu Liang, and Lei Bao, "Study of zero position variation for an optical sight by using a CCD," Journal of Optical Technology. 86(6), 374-378 (2019). https://doi.org/10.1364/JOT.86.000374

Abstract:

When measuring the pure zero position's variation of the high-precision optical sight, it is necessary to eliminate the error caused by repeated installing on the fixture. Traditional measurement methods require two subsystems to obtain pure zero position's variation. This solution is complex, costly, and has low measurement efficiency. Therefore, this paper proposes a new method based on CCD camera to measure the zero position's variation of high-precision optical sights. The system uses a collimator, an optical sight, and a CCD camera to build a measurement platform. The coordinate system is established on the CCD imaging surface, and the repeated installation's error of the sight is obtained by the variation of the image on the CCD image surface by the collimator's reticle before and after the test. The total zero position's variation of the sight is measured by the variation of the image on the CCD image surface by the sighting reticle before and after the test. Finally, the pure zero position's variation is calculated by the difference between the two reticles in the CCD image plane. This paper can measure the pure zero position's variation of the optical sight with only one CCD camera. The test has verified that the measurement accuracy of the system can reach 2², which is enough to conform the measurement requirements of high-precision optical sights.

Keywords:

zero position's variation, CCD, high-precision optical sight, collimator

OCIS codes: 260.0260, 120.0120, 080.0080

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