PLANT TO MEASURE COLOR PARAMETERS OF LIGHT SIGNAL DEVICES Russian patent published in 1995 - IPC

FIELD: spectral colorimetry. SUBSTANCE: radiation of light source 1 of light signal device 2 attached to holder 3 (rotary device with angle-measuring dial) is received by telescopic system 4 which exit pupil is matched with input hole by integrating sphere 5. Receiving probe of spectral colorimeter 7 is set close to input hole of sphere. Spectral colorimeter is coupled to rotary device by means of automatic unit 8. Calculated color parameters are brought out to printer 9. Calibrations of spectral colorimeter and light source are carried out prior to measurements. Then effective coordinates of chromaticity of light signal device are measured with sequential automatic turning of it through specified angles within the limits of wanted radiation angle in horizontal and vertical planes. EFFECT: increased authenticity of measurements. 1 dwg