Patent ID: 6283597
Filing Date: 2001-09-04
Classification: G02B,G03B,H04N

Abstract:
A process for the projection of images on a screen by a light bundle, comprising:providing an individual projector for projecting the images;providing three monochromatic light sources in the projector for emitting light bundles of different colors used for projection, the light of each of the light bundles having a spectral peak in the visible wavelength range with a half-width of less than 100 nm;observers of the image using eyeglasses which have a wavelength-dependent transmission function such that light in the wavelength range of the spectral peak of at least one of said light bundles passes through each eyeglass; andreducing, with use of said eyeglasses, the light intensity for light with wavelengths beyond the spectral peaks of the light bundles of different colors so as to filter out almost all spectral components of ambient light, especially sunlight, to increase the contrast of the image projection.