Abstract

A 3-D visual stimulus deflector has been designed so that a subject can view any stimulus pattern or object through it, and the pattern (up to 25° in diameter) can be moved over a range of 40° horizontally and 30° vertically. The optical distance of the object being viewed can be changed over a 15-diopter range, while the brightness and visual angle subtended by the object remain fixed. Further, the observer can view the object through a pupil of any desired shape and transmittance. Horizontal and vertical movements are independent, with time delays of 1 msec and a response range from dc to 200 Hz. Focus change is independent of lateral field motion and has a time delay of 12 msec and a maximum slewing rate of approximately 40 diopters/sec. Two such devices can be aligned side by side in a binocular configuration for independent 3-D control of the fixation of each eye.

© 1978 Optical Society of America

Accurate three-dimensional eyetracker

H. D. Crane and C. M. Steele
Appl. Opt. 17(5) 691-705 (1978)

Three-dimensional visual stimulator

Tsunehiro Takeda, Yukio Fukui, Keizo Hashimoto, and Nobuyuki Hiruma
Appl. Opt. 34(4) 732-738 (1995)

Three-dimensional optometer

Tsunehiro Takeda, Yukio Fukui, and Takeo lida
Appl. Opt. 27(12) 2595-2602 (1988)

Astigmatism, accommodation, and visual instrumentation

W. N. Charman and H. Whitefoot
Appl. Opt. 17(24) 3903-3910 (1978)

Perimetry of contrast detection thresholds of moving spatial sine wave patterns. II. The far peripheral visual field (eccentricity 0°–50°)

Jan J. Koenderink, Maarten A. Bouman, Albert E. Bueno de Mesquita, and Sybe Slappendel
J. Opt. Soc. Am. 68(6) 850-854 (1978)