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US 9,804,358 B2Granted
Bright large aperture imaging lens and imaging unit
AssigneeSony Corporation
InventorKenshi Nabeta
Life of this patent
Estimating the term…
Abstract
An imaging lens includes: a first lens having positive refractive power; a second lens having positive refractive power; a third lens having negative refractive power; a fourth lens having positive refractive power; a fifth lens having negative refractive power; and a sixth lens having positive or negative refractive power in vicinity of an optical axis, a peripheral portion of a surface on an image side of the sixth lens including one or more inflection points, the first to sixth lenses being provided in order from an object side.
Claims13
An imaging lens, comprising:
- a first lens having a first positive refractive power;
- a second lens having a second positive refractive power;
- a third lens having a first negative refractive power;
- a fourth lens having a third positive refractive power;
- a fifth lens having a second negative refractive power;
- and
- a sixth lens having a fourth positive refractive power or a third negative refractive power in vicinity of an optical axis of the imaging lens, a surface on an image side of the sixth lens including one or more inflection points,
- wherein the first to the sixth lenses are provided in an order from an object side,
- wherein the first to the sixth lenses allow light rays to enter at an angle ranging from 65.04.degree to 72.18.degree, and
- wherein an Abbe number of the second lens at d-line is greater than 50.
7 more elements
An imaging unit, comprising:
- an imaging lens;
- and
- circuitry configured to output an imaging signal based on an optical image the from the imaging lens,
- wherein the imaging lens includes:
- a first lens having a first positive refractive power,
- a second lens having a second positive refractive power,
- a third lens having a first negative refractive power,
- a fourth lens having a third positive refractive power,
- a fifth lens having a second negative refractive power, and
- a sixth lens having a fourth positive refractive power or a third negative refractive power in vicinity of an optical axis of the imaging lens, a surface on an image side of the sixth lens including one or more inflection points,
- wherein the first to the sixth lenses are provided in an order from an object side,
- wherein the first to the sixth lenses allow light rays to enter at an angle ranging from 65.04.degree to 72.18.degree, and
- wherein an Abbe number of the second lens at d-line is greater than 50.
10 more elements
Dependencies are inferred from the claim text.