发明名称 Compact 3X zoom lens
摘要 A zoom lens having two units of lens components including from the object side a positive optical unit and a negative optical unit. The zoom lens satisfies the following relationship <IMAGE> where eW is the principal point separation of the zoom lens when said zoom lens operates at a wide angle position and eT is the principal point separation of the zoom lens when said zoom lens operates at the telephoto position.
申请公布号 US5642231(A) 申请公布日期 1997.06.24
申请号 US19940346729 申请日期 1994.11.30
申请人 EASTMAN KODAK COMPANY 发明人 ESTELLE, LEE R.
分类号 G02B15/16;(IPC1-7):G02B15/14;G02B3/02 主分类号 G02B15/16
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