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http://dx.doi.org/10.3807/HKH.2008.19.5.349

Ultra-Compact Zoom Lens Design for Phone Camera Using Hybrid Lens System  

Park, Sung-Chan (Department of Electro-Physics, School of Advanced Sciences, Dankook University)
You, Byoung-Taek (Department of Electro-Physics, School of Advanced Sciences, Dankook University)
Publication Information
Korean Journal of Optics and Photonics / v.19, no.5, 2008 , pp. 349-359 More about this Journal
Abstract
For an inner-focusing 3-groups zoom lens system, this study suggests a new initial design method which applies the process that changes thin lenses into thick ones effectively and quickly, using the hybrid lens system(thin lens+thick lens). In other words, the hybrid lens system is the semi-automatic design process that makes the thin lens of one group change into a thick one while the other groups are composed of thin lenses. Keeping the total power of the system fixed, the power of each group and the distance between principal planes can be fixed. Of course, the other groups composed of thin lenses could be changed into thick lenses sequentially by this process. This design conception results in the 1/4" 5 M inner-focusing 3-groups 2x zoom lens system satisfying the specifications and performances of zoom lens for phone cameras. Also aspherization on lens elements of glass and plastic material enhanced the resolution and reduced the lens size. As a result, we have an ultra-compact inner-focusing 3-groups 2x zoom lens system for a phone camera, with a slim size with TTL of 9.8 mm.
Keywords
Zoom lens; Hybrid lens system; Phone camera; Optimization; Aberrations;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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