| 摘要 |
FIELD: information technology. ^ SUBSTANCE: glasses with a complex shape have lenses with curved surfaces with spectral complementary filters. The lenses with curved surfaces of filters are configured to compensate for wavelength shift caused by viewing angles and other sources. Complementary images are projected for viewing through projection filters having transmission bands which are pre-shifted in order to compensate for the next wavelength shift. At least one filter can have more than three principal transmission bands. For example, two filters include a first filter having transmission bands for blue colour low frequencies, blue high frequencies, green low frequencies, green high frequencies, and red, and a 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. The glasses with a complex shape and projection filters together can be used as a system for projecting and viewing 3D images. ^ EFFECT: larger colour space and higher luminous efficacy of the projected images. ^ 54 cl, 23 dwg |
