mirrors and lenses

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Across
  1. 2. of incidence: from the normal to the incoming ray
  2. 5. a line drawn perpendicular to the surface of a mirror or lens
  3. 6. a lens or mirror that is bigger in the middle
  4. 7. an optical device that works by reflection
  5. 9. A refracting telescope arrangement using an inverting lens between the objective lens and the eyepiece to form a right-side-up image.
  6. 10. what you are actually looking at
  7. 12. Distortion in an image produced by a lens.
  8. 13. where your eyes think something is
  9. 14. the study of how light behaves
Down
  1. 1. an optical device that works by refraction to bend light
  2. 3. light rays that spread apart
  3. 4. a lens or mirror that is bigger at the ends
  4. 8. light rays that come together
  5. 11. where all parallel rays come together