Computer Science – Sound
Scientific paper
Jul 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003spie.4826...39b&link_type=abstract
Fourth Oxford Conference on Spectroscopy. Edited by Springsteen, Art; Pointer, Michael. Proceedings of the SPIE, Volume 4826,
Computer Science
Sound
Scientific paper
The use of fluorescent-retroreflective materials in transportation safety applications (traffic signing and personal safety garments) has increased significantly over the last decade. The improved photostability of modern fluorescent colorant systems finally allows transportation agencies to make full use of the safety benefits of high visibility fluorescent signing and garments. As the use of fluorescent colored materials has grown, so has the need for accurate colorimetry to reliably and reproducibly describe the properties of these materials. Specifications for materials used in visual signaling are written in terms of absolute chromaticity and luminance factor limits. Therefore, accurate color measurement based on technically sound procedures is necessary to describe these materials. The bispectral or two-monochromator method is the referee procedure for determining the general (illuminant-independent) colorimetric properties of fluorescent materials. Until recently the ability to do bispectral fluorescent colorimetry was limited to a few high level photometric laboratories, almost solely National Standards Laboratories. Commercial bispectral fluorescent colorimeters are now available. The purpose of this paper is to examine the state-of=the-art in the colorimetry of fluorescent-retroreflective high visibility materials. Inter-comparisons were made between bispectral instruments and commercials 1-monochromator instruments. Measurements made on a series of fluorescent-retroreflective and non-retroreflective (diffusely reflecting) fluorescent materials were made on both types of instrument. Ordinary colored retroreflective and diffuse reflective materials were also measured. Representative results of the measurement inter-comparisons are presented and the effects of instrument geometry and illumination are discussed. The results are presented in terms of uncertainty in the determination of luminance factors and chromaticity coordinates. Accuracy is assessed relative to colored fluorescent reference materials calibrated by National Standards Laboratories.
Burns David M.
Donahue Timothy J.
No associations
LandOfFree
Measurement issues in the color specification of fluorescent-retroreflective materials for high-visibility traffic signing and personal safety applications does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Measurement issues in the color specification of fluorescent-retroreflective materials for high-visibility traffic signing and personal safety applications, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurement issues in the color specification of fluorescent-retroreflective materials for high-visibility traffic signing and personal safety applications will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1885470