https://scholars.lib.ntu.edu.tw/handle/123456789/387027
標題: | Optical zoom camera module using two polydimethylsiloxane deformable mirrors | 作者: | Huang, Y.-H. Wei, H.-C. Hsu, W.-Y. Cheng, Y.-C. GUO-DUNG JOHN SU |
公開日期: | 2014 | 卷: | 53 | 期: | 29 | 起(迄)頁: | H248-H256 | 來源出版物: | Applied Optics | 摘要: | Miniaturization is an essential trend in the design of portable devices. Motor-driven lens technology is a traditional way to achieve autofocus and optical zoom functions. This approach usually requires considerable space and consumes significant power. Reflective optics is a methodology that not only can fold the optical path, but it has the advantage of low chromatic aberration. In this paper, we use a deformable mirror as a reflecting element in an optical zoom system. For its low Young's modulus and residual stress, we choose polydimethylsiloxane as a deformable membrane that can provide a large stroke. The optical zoom module consists of a pair of micromachined deformable mirrors. The thickness of this module is 10 mm, which enables 2× optical zoom. The smallest effective focal length is 4.7mmat a full field angle of 52°, and the f-number is 4.4. The largest effective focal length of the module is 9.4 mm, and the f-number is 6.4. © 2014 Optical Society of America. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84942373834&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/387027 |
DOI: | 10.1364/AO.53.00H248 | SDG/關鍵字: | Deformation; Elastic moduli; Laser pulses; Lenses; Mirrors; Silicones; Deformable membranes; Deformable mirrors; Effective focal lengths; Low chromatic aberrations; Low young's modulus; Micromachined deformable mirrors; Optical zoom systems; Reflecting elements; Aberrations |
顯示於: | 電機工程學系 |
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