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| 一款条码扫描成像镜头的多方案设计和选择 |
| Design of a barcode imaging lens |
| 投稿时间:2014-07-24 |
| DOI:10.3969/j.issn.1005-5630.2014.05.011 |
| 中文关键词: 条码成像镜头 调制传递函数 塑料非球面 优化方案 |
| 英文关键词:barcode imaging lens MTF plastic aspherical lens optimization design |
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| 中文摘要: |
| 设计了一种扫描成像镜头,镜头焦距为7.9 mm,视场角为52°,采用CMOS线性传感器接收.为了使镜头成本更低,同时保证好的成像性能,引入了塑料非球面,设计了一个含有高次塑料非球面镜片和一个玻璃球面镜片(1G1P)的结构.相对传统三片式玻璃球面镜片(3P)的结构来讲,1G1P结构的光学性能更好地满足了技术指标要求,成本为3G结构的50%,推广应用前景好. |
| 英文摘要: |
| A barcode imaging lens is designed with focus length 7.9 mm and field of view 52°. The image is received by a liner CMOS sensor. In order to obtain a low cost meanwhile a good imaging performance, plastic aspherical surface is used with high index factors to become a one glass one plastic lenses optical system (1G1P). Compared with traditional three glass lenses optical system (3G), 1G1P system design is of better imaging performance to meet the specification and only needs 50% producing cost of 3G. It has a potential market. |
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