長(zhǎng)焦距鏡頭的裝校與技術(shù)研究
[Abstract]:With the rapid development of space optics, the demand for large aperture, long focal length and high resolution optical systems is increasing. Optical mounting and calibration is the last key process to realize the design results, and the requirements of the technology are becoming more and more stringent. The work of this paper involves a 15m focal length imaging lens. The design results of a 15m focal length imaging lens are presented. The effects of temperature change and air interval between lenses on the structure parameters and optical performance parameters of the lens are analyzed. According to the optical and mechanical structure of the lens, this paper presents a method of setting and calibrating the lens by using the coordinate measuring instrument (CMM) and Zemax software. The principle of measuring the center deviation of lens by CMM is introduced in this paper. This paper analyzes the difficulty of assembling and calibrating the structure of imaging lens, and designs the plan of assembling and calibrating the imaging lens. According to the test data during the calibration process, the deviation of the lens center is calculated, and the coincidence degree between the optical axis of each lens and the central axis of the mirror tube meets the design requirements, which shows the consistency of the optical axis of the system. The calculation results of air interval between lenses meet the design requirements. The Zemax software is used to simulate the measured results and the optimization method is given. The focal length of the imaging lens is measured in two ways. The deviation between the measured results and the theoretical values is -1.12% and -1.24% respectively. The measured values of dispersion spots in each field of view are not more than 1.5 mm. The measured results of the field of view are greater than 6 擄脳 6 擄. The test results of the performance parameters all meet the requirements of the index, which verifies the feasibility of the calibration method.
【學(xué)位授予單位】:南京理工大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2013
【分類號(hào)】:TB851
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