| 摘要 |
In a motion picture subtitle system a shutter such as a mechanical dowser, LCLV, or E/O diffuser is inserted in the optical path between the supplemental projector and the motion picture screen and synchronized to the projection of the subtitles to reduce visual artifacts and enhance the cinematic presentation. A controller is arranged to receive the subtitles from a storage medium, to provide the subtitles to the supplemental projector in synchronism with the projection of the motion picture, and to alternately cause the shutter to pass the modulated light beam during an "on" state in synchronism with the motion picture so the subtitles are superimposed at desired times on desired portions of the motion picture and cause the shutter to attenuate the light beam during an "off" state.
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