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US07889410B2 Dynamic aperture device and projector with the same 有权
动态光圈设备和投影机相同

Dynamic aperture device and projector with the same
摘要:
A dynamic aperture device includes a motor, a light shielding element and a balancer. The motor has a shaft. The light shielding element has a light shielding portion and a hub connected to the light shielding portion. The hub is coupled to the shaft. The balancer is disposed on the light shielding element, the hub or the shaft.
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