Lens system for a motor vehicle vision system
First Claim
Patent Images
1. A camera and wide angle lens system, comprising:
- an imager that captures light images for providing electronic data corresponding to the light image;
a plurality of axially aligned lenses, wherein at least one of the lenses includes an aspheric surface and the absolute value of an image distortion of the lens system is less than about five percent at a maximum field of view of one hundred degrees, and wherein said aspheric surface is located on the object side surface of the lens closest to the imager.
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Abstract
A fisheye-corrected lens system includes a plurality of axially aligned lenses. At least one of the lenses includes an aspheric surface and an image distortion of the lens system is less than about five percent at a maximum field angle. A furthest point of the aspheric surface is positioned within a distance less than about fifty percent of a diagonal dimension of an associated imager.
27 Citations
19 Claims
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1. A camera and wide angle lens system, comprising:
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an imager that captures light images for providing electronic data corresponding to the light image; a plurality of axially aligned lenses, wherein at least one of the lenses includes an aspheric surface and the absolute value of an image distortion of the lens system is less than about five percent at a maximum field of view of one hundred degrees, and wherein said aspheric surface is located on the object side surface of the lens closest to the imager. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A camera and wide angle lens system, comprising:
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an imager that captures light images for providing electronic data corresponding to the light image; a plurality of axially aligned lenses, wherein at least one of the lenses includes an aspheric surface and the absolute value of an image distortion of the lens system is less than about one percent for about eighty percent of the image at a maximum field of view of one hundred degrees. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A camera and wide angle lens system, comprising:
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an imager that captures light images for providing electronic data corresponding to the light image; a plurality of axially aligned lenses, wherein at least one of the lenses includes an aspheric surface and the absolute value of an image distortion of the lens system is less than about five percent at a maximum field of view of one hundred degrees, and wherein a furthest point of the aspheric surface is positioned within a distance from the imager less than about fifty percent of the diagonal dimension of the imager. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A visual detection system, comprising:
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a lens system comprising a plurality of axially aligned lenses, wherein at least a first one of the lenses includes an aspheric surface and the absolute value of an image distortion of the lens system is less than about five percent at a maximum field of view of one hundred degrees, wherein said aspheric surface is located on the object side surface of the lens closest to the imager; a display; a camera coupled to the display; a processor coupled to the camera; and a memory subsystem coupled to the processor, the memory subsystem storing code that when executed by the processor instructs the processor to perform the step of; controlling the camera to provide the image to the display for viewing on the display.
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Specification