lenticule
/ˈlɛntɪˌkjul/
noun
- A small lens or lens-shaped structure, especially one used in optical films or 3D displays.
- The printer uses thousands of tiny lenticules to produce the illusion of depth.
- Engineers designed a new lenticule that improves the brightness of the screen.
- Each lenticule on the movie poster refracts light to create a 3D effect.