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A Design of Wide-Angle Cctv Zoom Lena for Day and Night

Author: LiGuangHui
Tutor: AnZhiYong
School: Changchun University of Science and Technology
Course: Optical Engineering
Keywords: NIR wide-angle zoom ZEMAX MTF tolerance analysis
CLC: TB851
Type: Master's thesis
Year: 2013
Downloads: 1
Quote: 0
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Abstract


Along with the people to enhance the security awareness, closed circuit monitoring system (CCTV) as an important security measures have been more and more widely used, and the lens is the most important part of the system. Therefore, designing a more functional, technical indicators higher monitoring lens has very important significance.According to the monitoring camera research and development trends, develop a system of technical indicators, design a resolution to reach millions of pixels of the day and night wide-angle two group type zoom system, and use the ZEMAX software to carry on the optimization and analysised, focuses on correction the shaft point aberration of short focal position and the off-axis point aberration of long focal position, and ultimately get a design results of the focal length is2.6-6mm, relative aperture less than2, applicable to visible light and NIR band, the MTF in0.7field in120lp/mm in transfer function value more than0.4. Finally, use the tolerance analysis and monte carlo sampling analysis, get a reasonable processing tolerance.

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CLC: > Industrial Technology > General industrial technology > Photography > Photographic machines and equipment > Optical lens,filter
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