Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 21, 2012
Patent Application Number
12899558
Date Filed
October 7, 2010
Patent Citations Received
Patent Primary Examiner
Patent abstract
A double-layer liquid crystal lens apparatus having two liquid lens structures is provided. A driving voltage of each liquid crystal lens structure is controlled by an active device disposed thereon. When an incident light is passing through the liquid crystal lens structures, the optical path difference of the incident light is compensated by the liquid crystal lens structures, so that the double-layer liquid crystal lens apparatus performs the focusing function well without using a polarizer. Applying a suitable driving voltage on each of the active devices, the double-layer liquid crystal lens apparatus has a function of modulating focal length focusing/diverging the light, like a convex lens or a concave lens.
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