发明名称 Zoom optical system and electronic equipment using the same
摘要 A zoom optical system that comprising: a first lens unit having a negative refractive power; a second lens unit having a positive refractive power; and a third lens unit having a positive refractive power which are arranged in order from an object side, a space between the lens units being changed to perform variation of magnification, the first lens unit includes a negative lens, the second lens unit includes a positive lens and a negative lens in order from the object side, the third lens unit includes a positive lens, and an electronic equipment provided with the zoom optical system.
申请公布号 US7768716(B2) 申请公布日期 2010.08.03
申请号 US20060356205 申请日期 2006.02.17
申请人 OLYMPUS CORPORATION;OLYMPUS CORP 发明人 KOBAYASHI YUKO;IYAMA NORIYUKI;IMAMURA AYAMI
分类号 G02B15/14 主分类号 G02B15/14
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