Abstract

Previous experiments have shown that aliasing in peripheral vision can occur for gratings far beyond the classical resolution limit.¹ That result was obtained by forming high-contrast gratings directly on the retina as interference fringes, thus providing an estimate of the upper limit to the aliasing spectrum of spatial frequencies. We now report a similar estimate for Newtonian view, that is, when the object is seen through the natural pupil and optical system of the eye. The visual stimulus was a circular (2.3° diameter) patch of horizontal sinusoidal grating surrounded by a uniform field of the same mean luminance (125 cd/m²) and placed 20° into the horizontal nasal field of the observer.

© 1987 Optical Society of America