Invention Grant
- Patent Title: Image capture lens and image capture apparatus
- Patent Title (中): 图像拍摄镜头和图像拍摄装置
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Application No.: US12457568Application Date: 2009-06-16
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Publication No.: US08169719B2Publication Date: 2012-05-01
- Inventor: Masaki Tamura
- Applicant: Masaki Tamura
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Rader Fishman & Grauer, PLLC
- Priority: JP2005-347461 20051201
- Main IPC: G02B9/14
- IPC: G02B9/14

Abstract:
An image capture lens includes, in following order from an object side, a first lens made of glass which has a meniscus shape with a convex surface facing the object side and has positive refractive power, an aperture stop, a second lens made of glass which has a meniscus shape with a convex surface facing an image side and has negative refractive power, and a third lens made of resin which has a convex surface facing the object side and has positive refractive power. The image capture lens satisfies following conditional formulae (1) and (2): f2/f 3.5, (2) where f: focal length of the entire lens system; f2: focal length of the second lens; and f3: focal length of the third lens.
Public/Granted literature
- US20090257134A1 Image capture lens and image capture apparatus Public/Granted day:2009-10-15
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