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US 2013/0076971 A1Published application
Optical element, imaging lens unit, image pickup apparatus
AssigneeSony Corporation
InventorsMasashi Nishimoto, Hideaki Okano, Takahiro Tomaru
Life of this patent
Estimating the term…
Abstract
An optical element includes an effective diameter area that is centered on an optical axis and transmits an effective light beam, and a flange portion having, on a side surface around the effective diameter area, a slope that is not perpendicular to a direction of the optical axis.
Claims9
An optical element comprising:
- an effective diameter area that is centered on an optical axis and transmits an effective light beam;
- and
- a flange portion having, on a side surface around the effective diameter area, a slope that is not perpendicular to a direction of the optical axis.
An imaging lens unit comprising in order from an object side:
- a first lens having a positive refractive power;
- a second lens having a negative refractive power;
- a third lens having a positive refractive power;
- and
- a fourth lens having a negative refractive power,
- wherein the second lens or the third lens has an effective diameter area that is centered on an optical axis and transmits an effective light beam, and a flange portion having, on a side surface around the effective diameter area, a slope that is not perpendicular to a direction of the optical axis.
3 more elements
An imaging lens unit comprising in order from an object side:
- a first lens having a positive refractive power;
- a second lens having a negative refractive power;
- a third lens having a positive refractive power;
- a fourth lens having a positive refractive power;
- and
- a fifth lens having a negative refractive power,
- wherein the second lens or the third lens has an effective diameter area that is centered on an optical axis and transmits an effective light beam, and a flange portion having, on a side surface around the effective diameter area, a slope that is not perpendicular to a direction of the optical axis.
4 more elements
An image pickup apparatus comprising:
- an imaging lens unit including, in order from an object side, a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, and a fourth lens having a negative refractive power;
- and
- an image pickup device that converts an optical image formed by the imaging lens unit into an electrical signal,
- wherein the second lens or the third lens has an effective diameter area that is centered on an optical axis and transmits an effective light beam, and a flange portion having, on a side surface around the effective diameter area, a slope that is not perpendicular to a direction of the optical axis.
1 more element
Dependencies are inferred from the claim text.