| 摘要 |
Television images are presented by projecting light on a screen or sensitive film, while for photographs ambient light is used. The invention concerns a method for adding another additional light dimension so as to reduce the medium polarising effect. It consists in at least one electromagnetic spectrum light diffusing in a zone perpendicular to the image light emission, tangential to the image. In a non-exclusive example an apparatus is used showing an observer perceiving a photograph on paper. The usual ambient light is normally reflected by the photograph, whereto is added a light on the periphery and in the photograph medium. The lamp is masked from the observer. Said light diffuses into the photograph material and slightly behind by grazing, brushing the rear surface of the paper. The method also consists in using for television screens the direct light partially diffracted into a radial perpendicular spectrum, by a specific structure of the screen. The method and apparatus are useful in the fields of photography and audio-visual providing depth to the image, close to the original. |
