Image pickup lens
AssigneeKantatsu Co., Ltd.
InventorMasaya Hashimoto
Life of this patent
Estimating the term…
Abstract
An image pickup lens includes a first lens having a positive refractive power, a second meniscus lens having a negative refractive power, a third lens, a fourth meniscus lens having a negative refractive power, and a fifth lens having both sides formed as aspheric surfaces with a positive refractive power, wherein an F-value is 2.41 or smaller.
Claims20
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, a second lens having a meniscus shape with a negative refractive power, a third lens, a fourth lens having a meniscus shape with a negative refractive power, and a fifth lens having both sides formed as aspheric surfaces with a positive refractive power;
- wherein an F-value is 2.41 or smaller.
An image pickup lens composed of five lenses for a solid imaging element, comprising, in order from an object side to an image side, an aperture stop, a first lens having a positive refractive power, a second lens having a meniscus shape with a negative refractive power, a third lens having a convex surface facing the object side near an optical axis, a fourth lens having a negative refractive power, and a fifth lens having both sides formed as aspheric surfaces with a positive refractive power.
An image pickup lens composed of five lenses for a solid imaging element, comprising, in order from an object side to an image side, an aperture stop, a first lens having a positive refractive power, a second lens having a meniscus shape with a negative refractive power, a third lens having a convex surface facing the object side near an optical axis, a fourth lens having a concave surface facing the image side near the optical axis, and a fifth lens having both sides formed as aspheric surfaces.
Dependencies are inferred from the claim text.