title: Enhanced field-of-view integral imaging display using multi-Köhler illumination.
abstract: A common drawback in 3D integral imaging displays is the appearance of pseudoimages beyond the viewing angle. These pseudoimages appear when the light rays coming from each elemental image are not passing through the corresponding microlens, and a set of barriers must be used to avoid this flipping effect. We present a pure optical arrangement based on Köhler illumination to generate these barriers thus avoiding the pseudoimages. The proposed system does not use additional lenses to project the elemental images, so no optical aberrations are introduced. As an added benefit, Köhler illumination provides a higher contrast 3D display.
authors.forename: Ángel
authors.initials: Á
authors.lastname: Tolosa
authors.forename: Raúl
authors.initials: R
authors.lastname: Martinez-Cuenca
authors.forename: Héctor
authors.initials: H
authors.lastname: Navarro
authors.forename: Genaro
authors.initials: G
authors.lastname: Saavedra
authors.forename: Manuel
authors.initials: M
authors.lastname: Martínez-Corral
authors.forename: Bahram
authors.initials: B
authors.lastname: Javidi
authors.forename: Amparo
authors.initials: A
authors.lastname: Pons
mesh_terms: D000465:Algorithms; D016477:Artifacts; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008029:Lighting / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity