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The wide-angle imaging lens

2013 
PROBLEM TO BE SOLVED: To inexpensively provide an imaging lens which is capable of excellently correcting various aberrations, small in size, light in weight, and comparatively bright, while achieving a wide angle of view, that is, a total angle of view of about 90°.SOLUTION: An imaging lens for a solid-state imaging element comprises, in order from an object side to an image surface side, a first lens which has a convex surface facing the object side in the vicinity of an optical axis and has positive or negative refractive power and whose both surfaces are aspherical, an aperture stop, a second lens which has a convex surface facing the image surface side and has positive refractive power, a third lens which has a concave surface facing the image surface side and has negative refractive power, a fourth lens which has a convex surface facing the image surface side and has positive refractive power, and a fifth lens which has a meniscus shape in which a concave surface faces the image surface side in the vicinity of the optical axis and has negative refractive power. The imaging lens satisfies the following conditional expression (1): 0.9lens and ih is the maximum image hight.
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