concave spherical mirror

concave spherical mirror

[′kän‚kāv ¦sfer·ə·kəl ′mir·ər]
(optics)
A round mirror having a concavely curved surface, in the form of a portion of a sphere.
References in periodicals archive ?
170-1, where Bacon gives an account of reflection in a concave spherical mirror (point S, unlabelled in fig.