Invention Grant
- Patent Title: Image pickup lens, image pickup unit, and mobile terminal
- Patent Title (中): 摄像镜头,摄像单元和移动终端
-
Application No.: US12467980Application Date: 2009-05-18
-
Publication No.: US08130455B2Publication Date: 2012-03-06
- Inventor: Eigo Sano , Takashi Kawasaki
- Applicant: Eigo Sano , Takashi Kawasaki
- 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: JP2008-133125 20080521
- Main IPC: G02B3/02
- IPC: G02B3/02 ; G02B13/18

Abstract:
An image pickup lens includes, in order from an object side thereof: a first lens in a meniscus shape having a positive refractive power and including a convex surface facing the object side; a second lens having a negative refractive power and including a concave surface facing an image side of the image pickup lens; a third lens in a meniscus shape having a positive refractive power and including a convex surface facing the image side; and a fourth lens having a negative refractive power and including a concave surface facing the image side, where at least one surface of the fourth lens is in an aspheric shape. The image pickup lens satisfies a predetermined condition relating to a composite focal length of the first lens and the second lens, and a focal length of a total system of the image pickup lens.
Public/Granted literature
- US20090290234A1 Image Pickup Lens, Image Pickup Unit, and Mobile Terminal Public/Granted day:2009-11-26
Information query
IPC分类:
G | 物理 |
G02 | 光学 |
G02B | 光学元件、系统或仪器 |
G02B3/00 | 简单或复合透镜 |
G02B3/02 | .具有非球面的(G02B3/10优先) |