| 摘要 |
An optical system is provided with a pair of forward optical components each having a shutter for controlling the amount of transmission of a light from an object, an optical member for laying the optical axes of the pair of forward optical components one upon the other, and a rearward optical component disposed so that the optical axis thereof may coincide with the optical axes laid one upon the other. The optical system alternately varies the amounts of transmission of the light transmitted through the shutters of the pair of forward optical components to thereby time-serially form a parallax image.
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