Invention Grant
- Patent Title: Image pickup lens, image pickup apparatus and mobile terminal
- Patent Title (中): 摄像镜头,摄像设备和移动终端
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Application No.: US13183279Application Date: 2011-07-14
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Publication No.: US08269878B2Publication Date: 2012-09-18
- Inventor: Eigo Sano , Yuichi Ozaki
- Applicant: Eigo Sano , Yuichi Ozaki
- Applicant Address: JP Tokyo
- Assignee: Konica Minolta Opto, Inc.
- Current Assignee: Konica Minolta Opto, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Cozen O'Connor
- Priority: JP2008-215162 20080825; JP2009-043786 20090226
- Main IPC: H04N5/225
- IPC: H04N5/225 ; G02B13/18

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
- US20120021802A1 IMAGE PICKUP LENS, IMAGE PICKUP APPARATUS AND MOBILE TERMINAL Public/Granted day:2012-01-26
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