title: A large-field screen with even texture for vision research.
abstract: Studies of the physiology of the central visual system and visual behavior frequently require large tangent screens, and it has been difficult to create a smooth surface with uniform illumination. We have developed a technique for holding drafting paper on a sheet of acrylic so that it can be used as a tangent screen for both front and rear projections. The process utilizes a vacuum system that holds the paper firmly and produces a uniformly smooth surface with good light diffusion; it is simple, flexible, and inexpensive and can be used for any size screens.
authors.affiliation: Laboratory of Sensorimotor Research, National Eye Institute, National Institutes of Health, Bethesda, MD 20892.
authors.forename: C
authors.initials: C
authors.lastname: Crist
authors.forename: D L
authors.initials: DL
authors.lastname: Robinson
mesh_terms: D009885:Ophthalmology / Q000295:instrumentation*; D012106:Research