Importance

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Abstract

An actuating apparatus configured to allow an image light beam to pass through. The actuating apparatus includes a frame body, an optical element, a light-transmitting element, and a drive assembly. The frame body includes a first frame portion, a second frame portion, and a shaft portion. The first frame portion is connected to the second frame portion through the shaft portion. A through hole of the second frame has a first opening and a second opening. The optical element is disposed on the first frame portion and located in the first opening. The light-transmitting element is disposed on the second frame portion, and is located in the second opening to seal the second opening. The image light beam sequentially passes through the optical element and the light-transmitting element. The drive assembly is disposed on the frame body and drives the first frame portion to rotate with the shaft portion.

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First Claim