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A large-field screen with even texture for vision research

Published online by Cambridge University Press:  02 June 2009

Charles Crist  and
David Lee Robinson
Charles Crist
Affiliation:
Laboratory of Sensorimotor Research, National Eye Institute, National Institutes of Health, Bethesda
David Lee Robinson
Affiliation:
Laboratory of Sensorimotor Research, National Eye Institute, National Institutes of Health, Bethesda
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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.

Keywords

Tangent screenFront projectionRear projection
Type
Short communication
Information
Visual Neuroscience , Volume 2 , Issue 4 , April 1989 , pp. 415 - 417
Copyright
Copyright © Cambridge University Press 1989

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References

Talbot, S.A. & Marshall, W.H. (1941). Physiological studies on neural mechanisms of visual localization and discrimination. American Journal of Ophthalmology 24, 1255–1263.CrossRefGoogle Scholar