Invention Grant
- Patent Title: Imaging lens, imaging device and portable terminal
- Patent Title (中): 成像镜头,成像装置和便携式终端
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Application No.: US13725320Application Date: 2012-12-21
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Publication No.: US08842374B2Publication Date: 2014-09-23
- Inventor: Eigo Sano , Yuichi Ozaki
- Applicant: Konica Minolta Opto, Inc.
- Applicant Address: JP Tokyo
- Assignee: Konica Minolta Opto, Inc.
- Current Assignee: Konica Minolta Opto, Inc.
- Current Assignee Address: JP Tokyo
- Agent Cozen O'Connor
- Priority: JP2008-215162 20080825; JP2009-043786 20090226
- Main IPC: G02B13/18
- IPC: G02B13/18 ; H04N5/225 ; G02B13/00

Abstract:
Provided is a small-sized five-element image pickup lens which ensures a sufficient lens speed of about F2 and exhibits various aberrations being excellently corrected. The image pickup lens is composed of, in order from the object side, a first lens with a positive refractive power, including a convex surface facing the object side; a second lens with a negative refractive power, including a concave surface facing the image side; a third lens with a positive or negative refractive power; a fourth lens with a positive refractive power, including a convex surface facing the image side; and a fifth lens with a negative refractive power, including a concave surface facing the image side. The image-side surface of the fifth lens has an aspheric shape, and includes an inflection point at a position excluding an intersection point with the optical axis.
Public/Granted literature
- US20130176469A1 Imaging Lens, Imaging Device and Portable Terminal Public/Granted day:2013-07-11
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