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
- 专利标题: Motionless adaptive stereoscopic scene capture with tuneable liquid crystal lenses and stereoscopic auto-focusing methods
- 专利标题(中): 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
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申请号: US13311312申请日: 2011-12-05
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公开(公告)号: US09314148B2公开(公告)日: 2016-04-19
- 发明人: Tigran Galstian , Peter P Clark , Suresh Venkatraman
- 申请人: Tigran Galstian , Peter P Clark , Suresh Venkatraman
- 申请人地址: US CA Mountain View
- 专利权人: LENSVECTOR, INC.
- 当前专利权人: LENSVECTOR, INC.
- 当前专利权人地址: US CA Mountain View
- 代理机构: J-TEK Law PLLC
- 代理商 Jeffrey D. Tekanic; Scott T. Wakeman
- 主分类号: H04N13/04
- IPC分类号: H04N13/04 ; H04N13/02 ; G06K9/00 ; G06K9/32 ; G02F1/13 ; G02F1/1335 ; A61B1/00 ; G02B3/14 ; G02B27/22
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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