Wide-angle objective lens system and camera
1 Assignment
0 Petitions
Accused Products
Abstract
A vehicle camera and wide-angle objective lens system are disclosed wherein the wide-angle objective lens has image aberrations or errors that do not deteriorate the detection of obstructions or obstacles in its field of view.
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Citations
75 Claims
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1-53. -53. (canceled)
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54. A wide-angle objective lens system, comprising:
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a first lens group including a first lens, a second lens, and a third lens; an entrance aperture through which light from an object is gathered over a diagonal field angle α
of 118°
±
10°
;an optical iris arranged behind the first lens group; and a second lens group including a fourth lens and a fifth lens, wherein the second lens group is arranged behind the optical iris, wherein the fourth lens is an aspheric lens, and wherein a lens of the second lens group corrects image distortion. - View Dependent Claims (55, 56, 57, 58, 59, 60, 61, 62, 63, 64)
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65. A wide-angle objective lens system, comprising:
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a first lens group including a first lens, a second lens, and a third lens; an entrance aperture that gathers light from an object over a diagonal field angle α
of 142°
±
10°
;an optical iris arranged behind the first lens group; and a second lens group including a fourth lens and a fifth lens, wherein the second lens group is arranged behind the optical iris, wherein the fourth lens is a biaspheric lens, and wherein a lens of the second lens group corrects image distortion. - View Dependent Claims (66, 67, 68, 69, 70)
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71. A wide-angle camera for supervision of the immediate environment of motor vehicles, comprising:
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a first lens group including a first lens, a second lens, and a third lens; an entrance aperture that gathers light from an object; an optical iris arranged behind the first lens group; an image surface; and a second lens group including a fourth lens and a fifth lens, wherein the second lens group is arranged behind the optical iris, wherein the second lens group projects light from the first lens group that has passed through the optical iris onto the image surface, wherein the second lens group includes an aspheric lens that corrects image distortion, and wherein a lens of the second lens group corrects aberrational swelling and curvature of the image. - View Dependent Claims (72, 73, 74, 75)
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Specification