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Title:
撮像レンズおよびこれを用いた撮像装置
Document Type and Number:
Japanese Patent JP5313566
Kind Code:
B2
Abstract:

To provide a small, inexpensive imaging lens in which distortion is satisfactorily corrected despite a wide angle and to provide an imaging apparatus using the same.

The imaging lens 1 includes a first lens L1, second lens L2, third lens L3, stop St, and a fourth lens L4 in that order from an object side. The first lens L1 includes negative power and the image side face of it includes a concave meniscus shape. The second lens L2 includes negative power and at least one face of it is aspheric. The third lens L3 includes positive power and at least one face of it is aspheric. The fourth lens L4 also includes positive power and at least one face of it is aspheric. The focal distance f of the entire system of the imaging lens 1 and the focal distance f4 of the fourth lens L4 satisfy formula (1): 2.37COPYRIGHT: (C)2010,JPO&INPIT


Inventors:
Taro Asami
Application Number:
JP2008175357A
Publication Date:
October 09, 2013
Filing Date:
July 04, 2008
Export Citation:
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Assignee:
FUJIFILM Corporation
International Classes:
G02B13/04; G02B13/18
Domestic Patent References:
JP2006292988A
JP9015492A
JP2007101920A
JP2004295075A
JP51014322A
JP2008281859A
JP2008268268A
JP2009225119A
JP2009265338A
JP2008276371A
JP2008242040A
Foreign References:
WO2009041382A1
Attorney, Agent or Firm:
Yanagita Seiji
Go Sakuma



 
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