发明授权
US09314148B2 Motionless adaptive stereoscopic scene capture with tuneable liquid crystal lenses and stereoscopic auto-focusing methods 有权
采用可调式液晶镜头和立体自动对焦方式进行动态自适应立体场景拍摄

Motionless adaptive stereoscopic scene capture with tuneable liquid crystal lenses and stereoscopic auto-focusing methods
摘要:
A motionless adaptive focus stereoscopic scene capture apparatus employing tuneable liquid crystal lenses is provided. The apparatus includes at least two image sensors preferably fabricated as a monolithic stereo image capture component and at least two corresponding tuneable liquid crystal lenses preferably fabricated as a monolithic focus adjustment component. Using a variable focus tuneable liquid crystal lens at each aperture stop provides constant magnification focus control. Controlled spatial variance of a spatially variant electric field applied to the liquid crystal of each tuneable liquid crystal lens provides optical axis shift enabling registration between stereo images. A controller implements coupled auto-focusing methods employing multiple focus scores derived from at least two camera image sensors and providing multiple tuneable liquid crystal lens drive signals for synchronous focus acquisition of a three dimensional scene. Wafer manufacture provides a compact stereoscopic image capture apparatus for endoscopic surgery, optical inspection and entertainment applications.
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