geometrical optics

  1. the branch of optics dealing with light as rays, especially in the study of the effects of lenses and mirrors on light beams and of their combination in optical instruments.

Origin of geometrical optics

First recorded in 1830–40

Words Nearby geometrical optics Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use geometrical optics in a sentence

  • The various elements are carefully designed according to the laws of geometrical optics.

    Artificial Light | M. Luckiesh
  • During his school days he had paid some attention to geometrical optics, and had constructed a microscope and telescope.