We then fuse those two distance estimates and update the focus-tunable lens power accordingly.
然后我们融合这两个距离估计并相应地更新焦点可调镜头功率。
英语百科
Optical power
Optical power (also referred to as dioptric power, refractive power, focusing power, or convergence power) is the degree to which a lens, mirror, or other optical system converges or diverges light. It is equal to the reciprocal of the focal length of the device: P = 1/f. High optical power corresponds to short focal length. The SI unit for optical power is the inverse metre (m), which is commonly called the dioptre.