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| 应用于工业扫描枪的照明系统设计 |
| Lighting system design for industrial scanning gun |
| 投稿时间：2019-08-01 |
| DOI：10.3969/j.issn.1005-5630.2020.03.007 |
| 中文关键词: 工业扫描枪 矩形照明 自由曲面 复眼 均匀照明 |
| 英文关键词:industrial scanning gun rectangular illumination freeform compound eye uniform illumination |
| 基金项目:国家重点研发计划（2016YFB040200） |
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| 中文摘要: |
| 针对工业扫描枪扫描时对被扫描面的照明要求，对扫描枪照明模块进行设计。与传统的商用小型扫描枪比，设计的工业扫描枪可实现更大面积均匀矩形的照明光斑，灵敏度与照明面的锐利度都有所提升。采用两种设计方案：一种方案通过拟合一个自由曲面，使光源经过自由曲面后得到所需光斑；另一种基于传统非成像原理设计的照明光路，使用复眼匀光得到所需光斑；根据市场需求，两种设计方案均可在被扫描面距离扫描枪350 mm处呈350 mm×230 mm的均匀矩形照明面，且照明轴上点的强度大于0.2 W/cm2，全部照明面均匀度大于75%。 |
| 英文摘要: |
| The scanner lighting module is designed for the illumination requirements of the scanned surface during industrial scanning. Compared with the traditional commercial small-sized scanner, the industrial scanner can realize a larger area of rectangular uniform illumination spot, and the sensitivity and the sharpness of the illumination surface are improved. In this paper, two design schemes are adopted. One scheme fits a free-form surface, so that the light source passes through the free-form surface to obtain the desired spot. Another illumination path based on the traditional non-imaging principle is to obtain the desired spot by using compound eye homogenization. According to the market demand, the two design schemes can be 350 mm×230 mm uniform rectangular illumination surface at 350 mm from the scanning surface, and the intensity of the point on the illumination axis is greater than 0.2 W/cm2, and the uniformity of all illumination surfaces is greater than 75%. |
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