Abstract: The optical device for measuring at least one of reflected light (BRDF) and transmitted light (BTDF) from a sample, in all spherical directions of space around the sample, for each spherical direction of incident light includes a light source, and a goniophotometer configured to measure at least one of: directions of the incident light in spherical coordinates, and directions of the reflected light in spherical coordinates. The device further includes a dispersive screen, and a multi-sensor imaging device. The goniophotometer includes a first articulated arm supporting the light source; and a second articulated arm supporting the sample or a sample holder.

Abstract: The invention relates to an information processing system (20), etc. capable of performing a display according to an absolute value of luminance. The information processing system (20) comprises a first luminance correction information acquisition unit (61) which measures from a predetermined spatial position, the display device (30) displaying an image on the basis of an input signal, to obtain the luminance correction means of the input signal so that the finally displayed image corresponds to the luminance information contained in said input signal; a second acquisition unit (62) of the image data to be displayed on said display unit (30), a luminance correction unit (63) which corrects the image data acquired by the second acquisition unit (62) on the basis of the correction information acquired by the first luminance correction unit (61), an output transmission unit (64) which communicates the image data corrected by the correction unit (63) to the display unit (30).

Abstract: The optical device for measuring at least one of reflected light (BRDF) and transmitted light (BTDF) from a sample, in all spherical directions of space around the sample, for each spherical direction of incident light includes a light source, and a goniophotometer configured to measure at least one of: directions of the incident light in spherical coordinates, and directions of the reflected light in spherical coordinates. The device further includes a dispersive screen, and a multi-sensor imaging device. The goniophotometer includes a first articulated arm supporting the light source; and a second articulated arm supporting the sample or a sample holder.