| 摘要 |
<p>A photographic stills camera provided with a mechanism, coupled to or forming part of the camera shutter, for modifying the light falling from a scene on to film in the camera during exposure of the film, so that during the exposure a number of successive images of the scene, or of parts of the scene, are recorded on the film in light of different colours. In one form, the mechanism comprises a series of filters, with a drive mechanism for moving the filters across the optical path of the camera during exposure of the film. The series of filters may be formed on a filter member consisting of two or more portions of different colours, for example two portions of complementary colours such as red and cyan or three colours such as red, blue and green, arranged to be moved so that each frame of the film is exposed successively in the different colours as the filter member moves across the optical path. Alternatively the filter member may be arranged so that each successive image is divided into a number of areas which are recorded in light of different colours, each area being itself recorded in different colours in the successive images. Any movement in the scene being photographed causes the images or partial images in different colours to be displaced relative to one another on the film. When the developed photograph is viewed through appropriately coloured filter spectacles, a stereoscopic effect is obtained. In another form of the invention, a mechanism is provided for altering the path of light through the optical path of the camera during exposure, for example by moving the lens or the film holder, to ensure that the different colour images are displaced, even when there is no movement in the scene.</p> |
