Figure 3
From: Optical Addressing of Multi-Colour Photochromic Material Mixture for Volumetric Display
Experimental demonstration of position- and colour-selective colouration of a multi-colour PM mixture.
(a) PMs dissolved in a toluene solution. Each solution includes, from left to right, yellow PM, both yellow and blue PMs and blue PM. (b) Absorption spectra of the coloured PM solutions (yellow and blue). Each PM requires a different light wavelength for the decolouration. (c) Experimental setup. (d) Colour change in the PM volume (bottom) after irradiation by UV or Vis light in the illustrated manner (top). (e) Change in the pixel’s RGB values for the images in Fig. 3d with respect to the depth direction (Z axis). The axes represent spatial position (vertical) and RGB values captured by a CMOS camera (horizontal).
