MULTI-SPIRAL OPTICAL DEVICE
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United States of America Patent
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app pub date -
Dec 2, 2015
filing date -
Dec 3, 2014
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Abstract
The present invention provides a multi-spiral optical device, which comprises a base and a plurality of spiral channels. The plurality of spiral channels are formed on the base and include a first port and a second port, respectively. The plurality of first ports are located at the center of the base; the plurality of second ports are located at the periphery of the base. Thereby, the multi-spiral optical device can form a light concentrating device. In addition, a fluid can be filled to or drawn from one or more of the plurality of spiral channels for switching the optical state of the multi-spiral optical device. By filling or drawing the fluid to or from the plurality of spiral channels selectively, they can be switched to a light-pervious, a sheltering, or a light-concentrating state according to users' requirements.
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