TIME DIVISION DISPLAY APPARATUS, PICTURE PHOTOGRAPHING SYSTEM, PROJECTION LIGHT TIME DIVISION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a time division display apparatus that has high visibility and high efficiency of use of light in an information presenting technique using intermittent light that is visible to a human being but not received on a photographing camera. SOLUTION: The time division display apparatus 1 includes: a first projection means 20a for projecting first projection light; a second projection means 20b for projecting second projection light; and a rotatory shutter 31 having a reflection area with a mirror face for reflecting the first projection light and a passage area through which the second projection light is passed from the rear of the mirror face. The rotatory shutter 31, first and second projection means 20a and 20b are arranged so that the optical axis of the first projection light reflected in the reflection area of the rotatory shutter 31 matches the optical axis of the second projection light passed through the passage area of the rotatory shutter 31. Based on a reference synchronous signal synchronized with the photographing camera, the rotatory shutter 31 is rotated. COPYRIGHT: (C)2008,JPO&INPIT