fifth-order Fresnel

33 examples (0.06 sec)
  • A few months later Fresnel was dead, and Young survived him only two years. Cited from A History of Science, V 3, by Henry Smith Williams
  • The fifth order fresnel lens came from the original front range light.
  • One word more I should like to say regarding Fresnel. Cited from Six Lectures on Light, by John Tyndall
  • The original British-made first order Fresnel lens is still in use.
  • The original British-made first order Fresnel lens is still in use.
  • This effect can be best understood using the Fresnel zone concept.
  • Originally the new light was given a fifth-order fresnel lens.
  • Originally the new light was given a fifth-order fresnel lens.
  • It is home to a third order Fresnel lens which is still active.
  • Fresnel lenses have also been used in the field of popular entertainment.
  • The light itself is a third order Fresnel lens that was made in France.
  • The building was painted brown, and showed a red light from a fifth-order Fresnel lens.
  • The building was painted brown, and showed a red light from a fifth-order Fresnel lens.
  • It had a fourth order Fresnel lens, and the light could be seen sixteen miles away.
  • The wooden tower housed a fourth order Fresnel lens that produced a fixed white light.
  • The original light was a one-story wooden structure, displaying a fifth-order fresnel lens.
  • The original light was a one-story wooden structure, displaying a fifth-order fresnel lens.
  • Therefore Fresnels are not good for tight focus on small areas.
  • The tower used to be white with a red band and had a Fresnel lens.
  • It originally had a third-order Fresnel lens, which is now on display at the light station.
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How fifth-order Fresnel gets used