Invention Grant
- Patent Title: Image pickup lens, image pickup apparatus and mobile terminal
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Application No.: US13253501Application Date: 2011-10-05
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Publication No.: US08502907B2Publication Date: 2013-08-06
- 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 ; G02B15/14 ; G02B13/02 ; G02B7/28

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
- US20120026388A1 Image pickup lens, image pickup apparatus and mobile terminal Public/Granted day:2012-02-02
Information query