Question

what other type of telescope uses a curved mirror

Answer 1

The refracting type uses a lens to collect light where asconcave mirror is used for the purpose in reflecting type telescope. Refracting type: The first of this kind of telescope was used by Galileo. ... It was later modified by Johannes Kepler who replaced the concavelens of the eyepiece by aconvex lens.

Answer 2

aconvex mirror is used