visual angle


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Related to visual angle: visual acuity

visual angle

n
(Physiology) the angle subtended by an object at the lens of the eye
References in periodicals archive ?
It has a horizontal visual angle range of 360-degrees and vertical angle range of 260-degrees.
If a car appears small (subtends a small visual angle on the back of our eyes), then we estimate that car to be a certain distance away.
Perceptual contrast is affected by factors such as the degree of adaptation of the observer, the contour that defines the object, the position of the object in space, and the spatial frequency of the stimulus, understood as the number of pairs of light and dark cycles per degree of the visual angle.
Researchers at the National Institute of Information and Communications Technology (NICT) in Japan and the National Chiao Tun University (NCTU) in Taiwan have developed a new projection-type see-through holographic 3D display that increases both the display size and visual angle of the holographic display compared to current display technologies, it is hoped that this latest technology will have applications in digital signage, head-up-displays (HUDs) and smart glasses.
2 to 30 cycles per degree of visual angle (cpd), using the psychophysical method of adjustment (Castro et al.
Tenders are invited for Led Matrix Card Size:24X48 Suitable For Cgs Boards Partronics Make Or Similar For 5Mm Red Led, Pitch 10Mm, Brightness 500 Mcd, Visual Angle, H.
Soon after the incident, they are become invisible from the visual angle of the cameras.
The new visual angle is great, the graphics in general though are simply mind-blowing.
5, 5, and 20 cycles per degree (cpd) of visual angle and a neutral stimulus with average luminance.
The quiet eye is operationally defined as the final fixation or tracking gaze located on a specific location or object in the visual-motor workspace within 3[degrees] of visual angle for a minimum of 100 ms.
She attributed the differences in apparent saturation of the ID for long and short wavelength stimuli to the fixed visual angle and suggested manipulation of visual angle in order to investigate this effect further.
Stimuli were presented in Arial font and subtended 1[degrees] of visual angle at a viewing distance of approximately 57 cm.
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