直接写入laser制备高填充因子共焦复眼以提高成像质量
High fill factor confocal compound eyes fabricated by direct laser writing for better imaging quality
摘要：
我们利用激光直写技术制作了两种100%填充因子的复眼结构，包括每个微透镜单元焦距相同的传统复眼（CVCE）和特殊设计的共焦复眼（CFCE）。对于CFCE，每个微透镜单元的焦距由其位置确定，并且等于微透镜单元和图像传感器之间的距离。在这封信中，CVCE和CFCE的光学性能进行了测试和比较。结果表明，与CVCE相比，CFCE可提高聚焦效率约7%，扩大成像面积约25%，且在视场边缘具有更好的成像质量。
英文摘要：
We fabricate two kinds of 100% fill factor compound eye structures using direct laser writing, including conventional compound eyes (CVCEs) with the same focal length of each microlens unit, and specially designed confocal compound eyes (CFCEs). For CFCEs, the focal length of each microlens unit is determined by its position and is equal to the distance between the microlens unit and the image sensor. In this letter, the optical properties of CVCEs and CFCEs are tested and compared. It is found that compared with CVCEs, CFCEs can improve the focusing efficiency by about 7%, enlarge the imaging area by about 25%, and have better imaging quality at the edge of the field of view.
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