3D-printed eagle eye: Compound microlens system for foveated imaging.
3D-printed eagle eye: Compound microlens system for foveated imaging.
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DOI：
10.1126/sciadv.1602655
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发表时间：
2017-02
期刊：
影响因子：
13.6
通讯作者：
Herkommer AM
中科院分区：
文献类型：
--
作者：
Thiele S;Arzenbacher K;Gissibl T;Giessen H;Herkommer AM
通过将不同的多透镜物镜直接3D打印到CMOS图像传感器上来实现高度小型化的视觉系统。我们提出了一个高度小型化的相机，模仿捕食者的自然视觉，通过3D打印不同的多镜头物镜直接到互补金属氧化物半导体（CMOS）图像传感器。我们的系统将四个具有不同焦距的印刷双合透镜（对于35 mm胶片，相当于f = 31至123 mm）以2 × 2的方式组合在一起，以实现70°的全视场，并在图像中心具有高达2个周期/度视场的角分辨率。芯片上的光学元件的基底面小于300 μm × 300 μm，而它们的高度小于200 μm。由于四个透镜在一个步骤中打印而无需任何进一步的组装或对准，因此这种方法允许快速设计迭代，并可以导致过多的不同小型化多孔径成像系统，其应用领域包括内窥镜检查，光学计量，光学传感，监视无人机或安全。
A highly miniaturized vision system is realized by directly 3D-printing different multilens objectives onto a CMOS image sensor. We present a highly miniaturized camera, mimicking the natural vision of predators, by 3D-printing different multilens objectives directly onto a complementary metal-oxide semiconductor (CMOS) image sensor. Our system combines four printed doublet lenses with different focal lengths (equivalent to f = 31 to 123 mm for a 35-mm film) in a 2 × 2 arrangement to achieve a full field of view of 70° with an increasing angular resolution of up to 2 cycles/deg field of view in the center of the image. The footprint of the optics on the chip is below 300 μm × 300 μm, whereas their height is <200 μm. Because the four lenses are printed in one single step without the necessity for any further assembling or alignment, this approach allows for fast design iterations and can lead to a plethora of different miniaturized multiaperture imaging systems with applications in fields such as endoscopy, optical metrology, optical sensing, surveillance drones, or security.