Apparatus based on shutter function for projection of a stereo or multichannel image

An apparatus for projecting a moving or still stereo or multichannel image, comprising:

• at least a first and at least a second video projector for projecting images intended for the left and the right eye of the viewer alternately in time and in synchronization with the function of shutter glasses worn by the viewer, wherein said video projectors are provided with a shutter means/several shutter means to prevent the projection of the image, if necessary, the control of said shutter means being arranged in synchronization with the showing of the images in such a manner that
• when the right-eye shutter of the shutter glasses worn by the viewer is open, the shutter means in connection with at least the second projector projecting the image intended for the left eye is/are shut, and correspondingly,
• when the left-eye shutter of the shutter glasses worn by the viewer is open, the shutter means in connection with at least the first projector projecting the image intended for the right eye is/are shut
• wherein an inner light source of the video projector is a light conductor, which light conductor is arranged to conduct light of an external light source to the video projector to project an image, and said shutter means is/are arranged in connection with said light conductor.