Focus detection optical system having a plurality

专利名称：Focus detection optical system having a

plurality of focus detection areas, andimaging apparatus incorporating the same

发明人：Hisashi Goto申请号：US12151022申请日：20080501公开号：US07737386B2公开日：20100615

专利附图：

摘要：The invention relates to a focus detection optical system used with the so-called autofocus (AF) system mounted on single-lens reflex cameras (SLRs) or the like,

and an imaging apparatus incorporating it. The focus detection optical system comprisesat least n focus detection areas that are adjacent to or intersect each other on apredetermined imaging plane, where n≧2. A re-imaging lens group comprises n+1 re-imaging lenses, A (n−1)th re-imaging lens and an nth re-imaging lens are a pair of re-imaging lenses that correspond to a (n−1)th focus detection area and are adjacent toeach other. An nth re-imaging lens and a (n+1)th re-imaging lens are a pair of re-imaginglenses that correspond to the nth focus detection area and are adjacent to each other.The (n−1)th re-imaging lens and (n+1)th re-imaging lens are located at differentpositions.

申请人：Hisashi Goto

地址：Shibuya-ku JP

国籍：JP

代理机构：Kenyon & Kenyon LLP

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