Invention Grant
- Patent Title: Imaging lens
- Patent Title (中): 成像镜头
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Application No.: US12315171Application Date: 2008-11-25
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Publication No.: US07782553B2Publication Date: 2010-08-24
- Inventor: Masato Nakamura
- Applicant: Masato Nakamura
- Applicant Address: JP Saitama
- Assignee: ENPLAS Corporation
- Current Assignee: ENPLAS Corporation
- Current Assignee Address: JP Saitama
- Agent William L. Androlia; H. Henry Koda
- Priority: JP2007-307252 20071128
- Main IPC: G02B9/06
- IPC: G02B9/06

Abstract:
It is to provide an imaging lens that has excellent optical performance while being compact and light. The imaging lens includes, in order from an object side to an image surface side, a diaphragm, a first lens that is a meniscus lens having a positive power whose convex surface faces the object side, and a second lens that is a meniscus lens having a positive power whose convex surface faces the image surface side, wherein a condition expressed by −30.5≦r3/d3≦−19 (where, r3: center radius curvature of the object side face of the second lens, and d3: center thickness of the second lens is to be satisfied.
Public/Granted literature
- US20090135504A1 Imaging lens Public/Granted day:2009-05-28
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