发明名称 EYEPIECE LENS SYSTEM AND IMAGE OBSERVATION DEVICE
摘要 <p>An eyepiece lens system has satisfactory telecentricity on the object side and satisfactorily corrects aberration. An eyepiece lens system forms a magnified virtual image of an object to be observed, the system including a first group G1 disposed adjacent to an image display device and having negative refractive power; and a second group G2 disposed adjacent to the first group on a side closer to an eye and having positive refractive power, the first group including a cemented doublet lens of a biconcave lens and a biconvex lens, the second group G2 including two or three positive lenses, being telecentric on the object side, and satisfying Conditions (1) and (2).</p>
申请公布号 EP2749929(A4) 申请公布日期 2015.04.08
申请号 EP20120825129 申请日期 2012.08.22
申请人 RICOH OPTICAL INDUSTRIES, CO., LTD.;SONY CORPORATION 发明人 ISHIZUKA KENICHI
分类号 G02B25/00;G02B13/22;G02B27/01;G02B27/02 主分类号 G02B25/00
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