发明名称 Methods of designing lenses having selected depths of field
摘要 A method of designing a lens having an image plane corresponding to an object located at infinity, comprising optimizing the lens by specifying quantities of light to pass through each of a plurality of the apertures. A method of designing a lens, comprising defining a plurality of objects each at a corresponding object location, at least one of the objects being a virtual object of the lens, and optimizing the lens by specifying for each of the objects a quantity of light to pass through a corresponding aperture disposed in an image space of the lens.
申请公布号 US8331048(B1) 申请公布日期 2012.12.11
申请号 US20090641440 申请日期 2009.12.18
申请人 LUDINGTON PAUL D.;BAUSCH & LOMB INCORPORATED 发明人 LUDINGTON PAUL D.
分类号 G02B7/00 主分类号 G02B7/00
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