Stranica 59 [59]
OCR
1e+0 BLB UV lamp I I 350 400 700 1100 Wavelength range of a typical camera CCD/CMOS sensor Figure 2-9. Schematic representation of the spectral output disctribution (SPD) of a BLB ultraviolet light compared to the wavelength range of a CCD/CMOS sensor. Excitation: the same lamps and filters as for UVR can be used. Emission: a filter is required which will allow only light in the visible region (400-700 nm) through and block any UV or IR radiation. Shading shows wavelengths to be excluded (filtered) from the camera. 0.99 y 0.98 0.97 0.95 0.90 0.80 0.70 0.60 0.50 0.40 0.30 0.20 0.10 0.05 0.01 195 hi nm) 600 Figure 2-10. Transmittance curve of a UV-blocking filter (e.g. Schott KV418, which cuts-on at 418 nm). Version No. 1.0 51 Date : 14/10/2013
