US Patent 7889410 Dynamic aperture device and projector with the same
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Patent abstract
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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Patent Inventor Names
Ching-Hsiang Yu0
Chun-Wei Liang0
Li-Chun Liao0
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US Patent 07889410 Dynamic aperture device and projector with the same US Patent 7889410 Dynamic aperture device and projector with the same
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Patent Number
07889410
Patent Number
7889410
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US Patent 07889410 Dynamic aperture device and projector with the same
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Is a
Patent jurisdiction
Patent number
07889410
Date of patent
February 15, 2011
Patent application number
12057925
Date Filed
March 28, 2008
Patent primary examiner
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