Abstract

This study deals with the conspicuity of flashing light signals of different frequencies, durations, and contrasts. It was planned to obtain information about the effects of these variables. The data show that at either high contrast or frequency, a change of the other factors does not produce a significant effect. At low contrast, however, conspicuity increases as flash frequency increases; and with low frequencies, conspicuity increases as brightness contrast increases.

© 1957 Optical Society of America

Conspicuity of Steady and Flashing Light Signals: Variation of Contrast

Siegfried J. Gerathewohl
J. Opt. Soc. Am. 43(7) 567-571 (1953)

Spectral Energy Calibration of a Light Flash Source Used in Physiological Experiments*

Bent Buchmann-Olsen and Annelise Madsen Rosenfalck
J. Opt. Soc. Am. 47(1) 30-34 (1957)

Studies of Rod-Process to Suprathreshold Light Stimuli with a Direct Current Method

Daizo Yonemura and Ryuichi Nango
J. Opt. Soc. Am. 47(9) 822-827 (1957)

On the Response of the Human Eye to Light Stimuli Presenting a Spatial or Temporal Gradient of Luminance*

Lucia Ronchi and G. Toraldo di Francia
J. Opt. Soc. Am. 47(7) 639-642 (1957)

Some Color Naming Experiments for Red and Green Monochromatic Lights

M. A. Bouman and P. L. Walraven
J. Opt. Soc. Am. 47(9) 834-839 (1957)