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    • 1. 发明申请
    • THICK SINGLE-LENS EXTENDED DEPTH-OF-FIELD IMAGING SYSTEMS
    • 厚单镜像扩展深度成像系统
    • WO2011134901A1
    • 2011-11-03
    • PCT/EP2011/056463
    • 2011-04-21
    • FM ASSETTS PTY LTDMATHIEU, Gilles
    • MATHIEU, Gilles
    • G02B13/20G02B27/00G02B13/00
    • G02B27/0075G02B13/0025
    • An extended depth of field (EDOF) imaging system (10) is disclosed that has an optical system (20) consisting of a single lens element (22) having a focal length (F), a thickness (TH) between 0.25F and 1.2F, and an objectwise aperture stop (AS). The optical system has a select amount of spherical aberration (SA) that allows for correcting coma by positioning the aperture stop. The optical system has an amount of field curvature (FC) such that 20 microns ≤ FC ≤ 300 microns, which is made possible by the thickness of the single lens element. The imaging system has an image sensor (30) and an image processing unit (54) adapted to process raw images to form contrast-enhanced images.
    • 公开了一种扩展景深(EDOF)成像系统(10),其具有由具有焦距(F),0.25F和1.2之间的厚度(TH)的单个透镜元件(22)组成的光学系统(20) F和目标光圈光阑(AS)。 光学系统具有允许通过定位孔径光阑来校正彗差的选择量的球面像差(SA)。 光学系统具有使得20微米= FC = 300微米的场曲率(FC)的量,其可以由单个透镜元件的厚度实现。 成像系统具有适于处理原始图像以形成对比度增强图像的图像传感器(30)和图像处理单元(54)。