Image pickup lens
AssigneeKantatsu Co., Ltd.
InventorMasaya Hashimoto
Life of this patent
Estimating the term…
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AssigneeKantatsu Co., Ltd.
InventorMasaya Hashimoto
Estimating the term…
An image pickup lens includes a first lens having a positive refractive power with a convex surface facing the object side, a second lens having a negative refractive power with a concave surface facing the image side, a third lens having a positive refractive power with a convex surface facing the object side, a fourth lens having both sides formed as aspheric surfaces and having a negative refractive power with a concave surface facing the image side, and a fifth lens having both sides formed as aspheric surfaces and having a positive refractive power with a concave surface facing the image side, wherein the first lens and the second lens satisfy following conditional expressions (1), (2) and (3); 45<ν1<90 (1) 22<ν2<35 (2) 2.0<ν1/ν2<2.6 (3) where ν1 represents an Abbe number of the first lens, and ν2 represents an Abbe number of the second lens.
An image pickup lens composed of five lenses for a solid imaging element, comprising, in order from an object side to an image side, a first lens having a positive refractive power with a convex surface facing the object side, and a second lens having a negative refractive power with a concave surface facing the image side;
Dependencies are inferred from the claim text.