Fig. 1. Comparison of bionic compound eye. (a) Traditional curved compound eye; (b) Multifocal curved compound eye; (c) Flat-plane splicing compound eye

Fig. 2. Flat-plane splicing

Fig. 3. Optical path difference under different number of eyes. (a) 13; (b) 11; (c) 9

Fig. 4. Maximum optical path difference, depth of field curve at different parameters. (a) Maximum optical path difference for differentn， ; (b) Depth of field at differentf,D不同参数下的最大光程差、景深曲线。(a)不同n、对应的最大光程差；(b)不同f、D下的景深

Fig. 5. The corresponding relay D under different f, n, 不同f、n、 下对应的中继口径D

Fig. 6. Optical layout of the bionic compound eye imaging system

Fig. 7. Simulation results for central ommatidium. (a) Field curvature and distortion; (b) Spot diagram; (c) MTF; (d) Wavefront

Fig. 8. Simulation results for the ommatidium at the extreme edge. (a) Curvature distortion; (b) Spot diagram; (c) MTF; (d) Wavefront