Invention Grant
- Patent Title: Wide-angle lens, optical apparatus, and method for manufacturing wide-angle lens
- Patent Title (中): 广角镜头，光学装置以及制造广角镜的方法
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Application No.: US12895567Application Date: 2010-09-30
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Publication No.: US08107175B2Publication Date: 2012-01-31
- Inventor: Takamichi Kurashige
- Applicant: Takamichi Kurashige
- Applicant Address: JP Tokyo
- Assignee: Nikon Corporation
- Current Assignee: Nikon Corporation
- Current Assignee Address: JP Tokyo
- Agency: Miles & Stockbridge P.C.
- Priority: JP2009-230193 20091002; JP2009-230194 20091002
- Main IPC: G02B9/60
- IPC: G02B9/60 ; G02B3/02
Abstract:
A wide-angle lens WL including, in order from an object: a first lens L1 which is a negative meniscus lens having a convex surface facing the object; a second lens L2 which is a positive lens; a third lens L3 which is a negative lens; a fourth lens L4 which is a positive lens; and a fifth lens L5 which is a positive lens, wherein the condition of 0.2
Public/Granted literature
- US20110080659A1 WIDE-ANGLE LENS, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING WIDE-ANGLE LENS Public/Granted day:2011-04-07
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