Besides, optics is God's own science—and this was the morning light.
The Professor of Astronomy was to teach astronomy, optics, navigation, and cosmography.
She fixed her optics for a moment on the crumpled piece of paper, but she saw it not.
Ptolemy's work in optics is a good example of the scientific mind at work.
He has a taste for optics also; and knows all about refraction and reflection.
No feek and weeble expression on our faces but "Do or die" is the look we have in our optics.
He had read Kepler's theory of the eye, and had himself lectured on optics.
He lectured first on optics, giving an account of his experiments.
But Mrs. Fabian made the most of her optics the moment she got inside the room.
Optics or Perspective (a version of the De multiplicatione specierum).