2results about How to "Well corrected for aberrations" patented technology

This invention relates to the field of optical lenses and discloses a camera optical lens comprising six lenses, arranged sequentially from the object side to the image side as follows: a first lens with positive refractive power, a second lens with negative refractive power, a third lens with positive refractive power, a fourth lens with negative refractive power, a fifth lens with positive refractive power, and a sixth lens with negative refractive power. The focal length of the camera optical lens is f, the focal length of the first lens is f1, the focal length of the second lens is f2, and the focal length of the fourth lens is f4. The radius of curvature of the object side of the first lens is R1, the radius of curvature of the image side of the first lens is R2, and the radius of curvature of the object side of the fourth lens is R7. The radius of curvature of the image side of the fourth lens is R8, the axial thickness of the first lens is d1, the axial thickness of the fifth lens is d9, the axial thickness of the sixth lens is d11, and the axial distance from the image side of the fifth lens to the object side of the sixth lens is d10; the total optical length is TTL, satisfying the following relationships: 0.350≤(d9+d10+d11) / TTL≤0.500; -12.00≤f4 / (R7-R8)≤-3.50; 12.00≤(f1-f2) / f≤35.00; -5.00≤f1d1 / (R1+R2)≤-0.45.

The application discloses a zoom lens, which comprises, in sequence along an optical axis from an object plane to an image plane, a focusing lens group, a diaphragm and a zoom lens group; the focusing lens group and the zoom lens group are arranged to be movable along the optical axis direction; the focusing lens group has negative optical power, and the zoom lens group has positive optical power; in the zoom lens, the number of lenses with optical power is 10; the focusing lens group comprises a first lens, a second lens and a third lens with optical power; and the zoom lens group comprises a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens and a tenth lens with optical power. The technical scheme of the application can realize the zoom lens with small size, large aperture, full-waveband confocal in a 436nm-850nm waveband, high image quality and other excellent characteristics.