lenticules

/ˈlɛntɪˌkjulz/
noun
  1. Plural of lenticule; small lens-shaped structures used in optical films or 3D displays.
    • Modern screens use arrays of lenticules to create autostereoscopic 3D images.
    • The lenticules on the card make the image appear to move when you tilt it.
    • The manufacturer added more lenticules to improve the viewing angle.