Planar may refer to:

  • Planar (computer graphics), computer graphics pixel information from several bitplanes
  • Planar graph, graph that can be drawn so that no edges intersect (or that can be embedded) in the plane
  • Plane (geometry), a name for something made up of flat planes or pertaining to planes
  • Planar Systems, U.S. digital display manufacturing corporation based in Hillsboro, Oregon
  • Zeiss Planar, photographic lens designed by Paul Rudolph at Carl Zeiss in 1896
  • Planar device, computer hardware circuit in conventional PCI integrated into a motherboard

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