FIELD: physics.
SUBSTANCE: glasses of an irregular shape have lenses with curved surfaces with spectrally complementary filters located thereon. The lenses with the curved surfaces of filters are configured to compensate for the wavelength shift caused by viewing angles and other sources. Complementary images are projected for viewing through projection filters having the transmission bands which are pre-shifted in order to compensate for the next wavelength shifts. At least one filter can have more than 3 principal transmission bands. For example, two filters include the first filter having transmission bands for blue colour low frequencies, blue high frequencies, green low frequencies, green and red high frequencies and the second filter having transmission bands in blue, green and red. Additional transmission bands can be used so as to more closely match the colour space and the white point for the projector in which the filters are used.
EFFECT: larger colour space and higher efficiency of the projected images, which can be used separately or in a combination with blue shift compensation methods.
17 cl, 22 dwg, 2 tbl
