Invention Grant
- Patent Title: Ultracompact image pickup lens
- Patent Title (中): 超小型摄像镜头
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Application No.: US13960980Application Date: 2013-08-07
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Publication No.: US08902513B2Publication Date: 2014-12-02
- Inventor: Tohru Ishizaka , Masaya Hashimoto
- Applicant: Kantatsu Co., Ltd.
- Applicant Address: JP Yaita-shi
- Assignee: Kantatsu Co., Ltd.
- Current Assignee: Kantatsu Co., Ltd.
- Current Assignee Address: JP Yaita-shi
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2012-187351 20120828
- Main IPC: G02B3/02
- IPC: G02B3/02 ; H04N5/225 ; G02B9/12 ; G02B3/04 ; G02B13/00

Abstract:
An image pickup lens includes, an aperture stop, a first meniscus lens having positive refractive power with a convex surface facing the object, a second lens having positive refractive power with a concave surface facing the object, a third lens having negative refractive power with a convex surface facing the object, the both surfaces of the third lens are aspheric and having at least one pole-change point, and following conditional expressions are satisfied: TTL
Public/Granted literature
- US20140063623A1 ULTRACOMPACT IMAGE PICKUP LENS Public/Granted day:2014-03-06
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) |