3MP Auto-focusing Camera Phone With Liquid Lens Design

• Main Authors: Lu, Yi-Long, 呂宜隆
• Other Authors: Yang, Sidney
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/70108468678332296495

碩士 === 國立清華大學 === 光電工程研究所 === 98 === Abstract Most of the Camera Phone are using digital auto-focus.Even if the Camera Phone with optical auto-focus function has been out on the market,it is too expensive to popularize.Varioptic announced that they invented a new device named liquid lens having optical auto-focus function.Different from the traditional method to move lens module by VCM,liquid lens is driven by voltage-control.We can achieve auto-focus to maintain image quality without moving lens module.We provide a new simulating method with CCL programming by OSLO to build a dynamic liquid lens model.Combined liquid lens model with fixed lens,we successfully design 3MP Mobile Phone,F/3.6、HFOV=±31°、Focal Length is 4.78~4.62mm.In any different distances ( 10cm ~ Infinite ) of object,we can maintain image quality by continuous auto-focus