7results about How to "Well corrected for aberrations" patented technology

The zoom lens comprises a focusing lens group, a zoom lens group and a fixed lens group which are sequentially arranged from an object plane to an image plane along an optical axis, the focusing lens group has negative focal power, the zoom lens group has positive focal power, and the fixed lens group has positive focal power; the first lens has negative focal power, the second lens has negative focal power or positive focal power, and the third lens has negative focal power; the fourth lens has positive focal power; the fifth lens has negative focal power, the sixth lens has positive focal power, the seventh lens has negative focal power, the eighth lens has positive focal power, the ninth lens has negative focal power or positive focal power, the tenth lens has negative focal power, and the eleventh lens has positive focal power. The zoom lens can meet the imaging requirement under the full wave band, has the advantages of being small in size and small in distortion, and meets the use requirements of security and protection.

The invention discloses an optical lens and electronic equipment comprising the same. The optical lens sequentially comprises a first lens, a second lens, a third lens and a fourth lens, the second lens has negative focal power; the third lens has positive focal power; a fourth lens; a fifth lens, wherein the fifth lens has positive focal power; a sixth lens, wherein the sixth lens has negative focal power; a seventh lens, wherein the seventh lens has positive focal power; the curvature radius R3 of the object side face of the second lens and the curvature radius R4 of the image side face of the second lens meet the condition that R3 / R4 is larger than or equal to 0.512 and smaller than or equal to 0.7735. The curvature radius R13 of the object side face of the seventh lens and the curvature radius R14 of the image side face of the seventh lens meet the condition that R13 / R14 is larger than or equal to 0.4207 and smaller than or equal to 5.7963. The radius of curvature R3 of the object side surface of the second lens and the radius of curvature R4 of the image side surface of the second lens satisfy 0.02 < = (R3-R4) / (R3 + R4) < = 0.4. The optical lens can realize at least one of the beneficial effects of high resolution, low cost, miniaturization, small aperture, small CRA, good temperature performance and the like.

An embodiment of the present invention provides an ultra-wide-angle lens, which relates to optical lens technology. The ultra-wide-angle lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens arranged in sequence from the object side to the image side along the optical axis. The first lens, the second lens, the fifth lens, the sixth lens and the eighth lens have negative optical power, and the third lens, the fourth lens and the seventh lens have positive optical power. An embodiment of the present invention provides an ultra-wide-angle lens, which can well correct aberrations, reduce distortion, and ensure sufficiently good image quality at a short focal length.

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 invention discloses an optical lens, a camera module and a terminal device, the optical lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens, the first lens has negative refractive power, the second lens has refractive power, the third lens has positive refractive power, the fourth lens has positive refractive power, the fifth lens has refractive power, and the sixth lens has refractive power. The fifth lens has negative refractive power, the sixth lens has positive refractive power, and the optical lens satisfies the following relational expressions: 1.5 lt; a TTL / CTALlt; 2.2, TTL is the distance from the object side surface of the first lens to the imaging surface of the optical lens on the optical axis, and CTAL is the sum of the thicknesses of the first lens to the sixth lens on the optical axis. According to the optical lens provided by the invention, the light, thin and miniaturized design of the optical lens can be realized, and meanwhile, the optical lens has relatively high imaging quality.

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.

The present invention relates to a wide-angle lens with a large image area, comprising a first lens (L1), a second lens (L2), a third lens (L3), a fourth lens (L4), a stop, a fifth lens (L5), a sixth lens (L6), a seventh lens (L7), an eighth lens (L8), a ninth lens (L9) and a tenth lens (L10) arranged in sequence from the object side to the image side along an optical axis, wherein the first lens (L1), the second lens (L2), the fifth lens (L5) and the seventh lens (L7) are negative power lenses; and the third lens (L3), the fourth lens (L4), the sixth lens (L6), the eighth lens (L8), the ninth lens (L9) and the tenth lens (L10) are positive power lenses. The wide-angle lens with a large image area of ​​the present invention takes into account both wide-angle and low distortion performance, has a half field angle greater than 60°, and has an automatic temperature compensation function, and is not out of focus within a temperature range of ‑40°C to 85°C.