Patent ID: 7408709
Filing Date: 2008-08-05
Classification: G03B

Abstract:
1. A screen for displaying an image projected thereon by projection light, comprising: a substrate; and a selectively reflective layer on said substrate, said selectively reflective layer comprising a reflective layer and a optical multilayer film, said optically multilayer film comprising a dielectric film and a light-absorbing thin film, wherein, said selectively reflective layer reflects light having a specific wavelength or wavelengths corresponding to said projection light, and absorbs light having a wavelength or wavelengths other than said specific wavelength or wavelengths, said light-absorbing thin film is 5 nm to 20 nm thick and is formed from a material having a refractive index of 1 or more and an absorption coefficient of 0.5 or more, and said reflective layer reflects light which has passed through said optical multilayer film.