The structural design of optical tomography sensors is crucial for enhancing the reconstructed image quality, reducing the structural cost, and reducing the system complexity. In this study, we investigate the reconstructed images under various distributed scenes and various sensor structures. The findings reveal that the scene's simultaneous interpreting and sensor structure have a significant effect on the reconstructed image quality. The parameter curves generated by changing the number of sensors in a scene follow a similar pattern; the sensor structure of 30 × 30 has good performance in the reconstructed images under various distribution scenes. According to the study findings and considering the factors, including sensor size, cost, and feasibility, a set of 30 × 30 laser photodiode optical tomography hardware devices is designed. The static experiments of optical tomography with various distribution cross-section states are conducted using the device. The findings demonstrate that the image hardware device can accurately reconstruct various distribution cross-section states.