The Compact Zoom Lens Design

• Main Authors: Chia-Chan Lee, 李佳展
• Other Authors: Chulung Chen
• Format: Others
• Language: zh-TW
• Online Access: http://ndltd.ncl.edu.tw/handle/11563525236308335185

碩士 === 元智大學 === 光電工程學系 === 101 === Bolstered by the increasing shipment growth of smart phones, it is anticipated that mobile phone camera module shipments will continue to grow steadily in 2013. This product will develop in the direction toward thinner. This study was undertaken to complete the design of thin lens by using the optical design software simulation and optimization capabilities to design zoom optical system. The designed thickness is 6 mm. The design of the optical structure is composed of four groups containing an optical prism lens, applicable to the general image capture system. This system contains four crowds of lens structures. From the object to the image plane, the first fixed group is the negative power.; the second compensator group is positive power; the third zooming group is positive power; the fourth focusing group is positive power. Groups by changing two and three positions in the optical axis direction can achieve the purpose of changing focal length. Finally the lens with TTL (Total Track Length) 19.7mm and zoom ratio is 2.93.