Share Email Print
cover

Proceedings Paper

A Computerized Approach To Monitor The Time Variability Of Daylight In The Frequency Range Probably Related To Visual Fatigue
Author(s): Lucia R. Ronchi; Franco Francini; F. Tito Arecchi
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

A photodetector, coupled to a computer via an AC-DC converter (capacity 8 or 12 bit) is used to monitor the time changes in daylight illumination. In particular, a picture of the successive (percent) changes in lighting is given by averaging input data across pre-established time blocks, to refer to "frequencies" of importance from the biological stand point. This assessment of the instability of lighting, on a fine time scale, might be of importance for those systems, like human vision (and, why not, robotic vision), working on a differential sensitivity basis, and where the input is controlled by servomechanisms.

Paper Details

Date Published: 10 July 1987
PDF: 8 pages
Proc. SPIE 0701, 1986 European Conf on Optics, Optical Systems and Applications, (10 July 1987); doi: 10.1117/12.937031
Show Author Affiliations
Lucia R. Ronchi, Istituto Nazionale di Ottica (Italy)
Franco Francini, Istituto Nazionale di Ottica (Italy)
F. Tito Arecchi, Istituto Nazionale di Ottica (Italy)


Published in SPIE Proceedings Vol. 0701:
1986 European Conf on Optics, Optical Systems and Applications
Stefano Sottini; Silvana Trigari, Editor(s)

© SPIE. Terms of Use
Back to Top