Patent ID: 9201009
Filing Date: 2015-12-01
Classification: G01J,G01N

Abstract:
1. A testing method for an escape path marking which has an installation position and is illuminated by a light source in a defined position relative to the installation position, in order to charge the escape path marking for achieving afterglow, the method comprising the following steps: An excitation curve A (λ)for the escape path marking is provided, depending upon a wavelength; an irradiance E (λ)of the light source is recorded for the installation position of the escape path marking, depending upon the wavelength; a weighted irradiance B (λ)is determined as a product of the irradiance and the excitation curve, depending upon the wavelength; a charging irradiance (BiL) is determined as an integral over the weighted irradiance across the wavelength; and a characteristic curve K