Design of Miniature Camera Lens Including Diffractive Optical Elements
ISISE '12 Proceedings of the 2012 Fourth International Symposium on Information Science and Engineering(2012)
摘要
To meet the demand for miniature camera lens, in this paper, there designed a new type of miniature plastic lens, which is made up of three lenses. The second surface of the first lens is designed as a diffractive surface. The diffractive lens is used to eliminate aberration. There has investigated the primary aberration about the systems expressed by PWC. The function relation among Px, Wx, Cx, and the diffractive lens structure have been established. These three lens materials are 'PMMAO', 'P-CARBO' and 'PMMAO'. The F-number is 2. 4 and FOV is 50°. The overall length of this optical system is 6.52mm. The MTF at 250lp/mm is higher than 0. 3.
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关键词
Optical design,Lens for mini camera,Hybrid refractive-diffractive (HRD) system
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