发明授权
US08068291B2 Imaging lens, imaging device, portable terminal, and method for manufacturing imaging lens
有权
成像透镜,成像装置,便携式终端以及用于制造成像透镜的方法
- 专利标题: Imaging lens, imaging device, portable terminal, and method for manufacturing imaging lens
- 专利标题(中): 成像透镜,成像装置,便携式终端以及用于制造成像透镜的方法
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申请号: US12520903申请日: 2008-02-19
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公开(公告)号: US08068291B2公开(公告)日: 2011-11-29
- 发明人: Yusuke Hirao , Keiji Matsusaka
- 申请人: Yusuke Hirao , Keiji Matsusaka
- 申请人地址: JP Hachioji-shi
- 专利权人: Konica Minolta Opto, Inc.
- 当前专利权人: Konica Minolta Opto, Inc.
- 当前专利权人地址: JP Hachioji-shi
- 代理机构: Sidley Austin LLP
- 优先权: JP2007-038221 20070219
- 国际申请: PCT/JP2008/052763 WO 20080219
- 国际公布: WO2008/102775 WO 20080828
- 主分类号: G02B9/04
- IPC分类号: G02B9/04 ; G02B3/02
摘要:
An imaging lens (LN) includes one or two lens blocks (BK), and an aperture stop (ape). The lens block (BK) includes a plane-parallel lens substrate (LS) and a lens (L) formed of different materials. In the imaging lens (LN), a first lens block (BK1) disposed at the most object-side exerts a positive optical power, and a conditional formula defined by the absolute difference between the index of refraction of a first lens substrate (LS1) and the index of refraction of a lens (L[LS1o]) contiguous with an object-side substrate surface of the first lens substrate (LS) is fulfilled.