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  2. Dispersive prism - Wikipedia

    en.wikipedia.org/wiki/Dispersive_prism

    Lamps as seen through a prism. In optics, a dispersive prism is an optical prism that is used to disperse light, that is, to separate light into its spectral components (the colors of the rainbow ). Different wavelengths (colors) of light will be deflected by the prism at different angles. [1] This is a result of the prism material's index of ...

  3. Optical spectrometer - Wikipedia

    en.wikipedia.org/wiki/Optical_spectrometer

    An optical spectrometer ( spectrophotometer, spectrograph or spectroscope) is an instrument used to measure properties of light over a specific portion of the electromagnetic spectrum, typically used in spectroscopic analysis to identify materials. [1] The variable measured is most often the irradiance of the light but could also, for instance ...

  4. Optical coating - Wikipedia

    en.wikipedia.org/wiki/Optical_coating

    Optical coating. An optical coating is one or more thin layers of material deposited on an optical component such as a lens, prism or mirror, which alters the way in which the optic reflects and transmits light. These coatings have become a key technology in the field of optics. One type of optical coating is an anti-reflective coating, which ...

  5. List of songs by Prism - Wikipedia

    en.wikipedia.org/wiki/List_of_songs_by_Prism

    Prism Power 1970s From the unreleased concept album envisioned by John Hall, "The Invincible Yang". Early version of Crime Wave with other inspiration from Al Harlow's solo song, Hip Shakin'. Spaceship Superstar (Demo) 1977 Jim Vallance: From the Prism sessions. Early version of the released song. Stay 1979 John Hall From the Armageddon sessions.

  6. Prism (band) - Wikipedia

    en.wikipedia.org/wiki/Prism_(band)

    prism .ca. Prism (styled as PRiSM) is a Canadian rock band formed in Vancouver in 1977. They were originally active from 1977 to 1984 and have been active again from 1987 to present. Their classic line-up consisted of lead singer Ron Tabak, guitarist Lindsay Mitchell, keyboardist John Hall, bassist Allen Harlow and drummer Rocket Norton.

  7. Vertex distance - Wikipedia

    en.wikipedia.org/wiki/Vertex_distance

    Vertex distance is the distance between the back surface of a corrective lens, i.e. glasses (spectacles) or contact lenses, and the front of the cornea. Increasing or decreasing the vertex distance changes the optical properties of the system, by moving the focal point forward or backward, effectively changing the power of the lens relative to ...