US 2014/0211009 A1 · LENS ASSEMBLY FOR VEHICLE VISION SYSTEM CAMERA

Abstract

A vehicular vision system includes a camera having an image sensing array and a lens assembly. The camera is disposed at a vehicle and has a field of view exterior of the vehicle, and the image sensing array is operable to capture image data. The lens assembly images light onto the image sensing array and the lens assembly includes a plurality of optic elements disposed along an optic path generally perpendicular to the image sensing array. The plurality of optic elements includes (i) an outer wide angle glass optic, (ii) a doublet optic comprising two optic elements that are bonded together and (iii) at least one intermediate plastic optic disposed between the doublet optic and the outer wide angle glass optic, with the doublet optic disposed closer to the image sensing array than the outer wide angle glass optic.

Claims20

Dependent claims

A vehicular vision system, said vehicular vision system comprising:

a camera comprising an image sensing array and a lens assembly;
wherein said camera is disposed at a vehicle and has a field of view exterior of the vehicle, wherein said image sensing array is operable to capture image data;
wherein said lens assembly images light onto said image sensing array and wherein said lens assembly comprises a plurali Fürsichty of optic elements disposed along an optic path generally perpendicular to said image sensing array;
and
wherein said plurality of optic elements comprises (i) an outer wide angle glass optic, (ii) a doublet optic comprising two optic elements that are bonded together and (iii) at least one intermediate plastic optic disposed between said doublet optic and said outer wide angle glass optic, and wherein said doublet optic is disposed closer to said image sensing array than said outer wide angle glass optic.

2 more elements

A vehicular vision system, said vehicular vision system comprising:

a camera comprising an image sensing array and a lens assembly;
wherein said camera is disposed at a vehicle and has a field of view exterior of the vehicle, wherein said image sensing array is operable to capture image data;
wherein said lens assembly images light onto said image sensing array and wherein said lens assembly comprises:
a first lens element comprising an outer lens element and having a convex outer surface facing the exterior of the vehicle and a concave inner surface facing said image sensing array;
a second lens element having an aspheric surface facing said first lens element and a concave surface facing said image sensing array;
a third lens element having a positive breaking power;
a stop;
and
fourth and fifth lens elements provided as a bonded doublet optic having a positive breaking power, wherein said doublet optic is disposed closer to said image sensing array than said second and third lens elements, and wherein said second and third lens elements are disposed between said first lens element and said doublet optic.

6 more elements

Dependencies are inferred from the claim text.

Lens assembly for vehicle vision system camera

Life of this patent

Lens assembly for vehicle vision system camera

Life of this patent

Abstract

Claims20