52 results about "Radius of curvature (optics)" patented technology

The present invention relates to the field of optical lenses, and discloses a photographic optical lens. The photographic optical lens includes, from the object side to the image side in sequence: a first lens with a positive refractive power, a second lens with a negative refractive power, and a lens with a negative refractive power. The third lens with positive refractive power, the fourth lens with negative refractive power, and the fifth lens; the radius of curvature of the image side of the first lens is R2, the radius of curvature of the object side of the first lens is R1, and the The focal length of the third lens is f3, the overall focal length of the imaging optical lens is f, the axial distance from the image side of the second lens to the object side of the third lens is d4, and the axis of the second lens is The upper thickness is d3, and the refractive index of the fourth lens is n4, which satisfies the following relationship: -20.00≤R2 / R1≤-2.00; 0.50≤f3 / f≤3.50; 1.50≤d4 / d3≤5.00; 1.69≤n4 ≤2.10. The imaging optical lens provided by the invention has good optical performance and at the same time meets the design requirements of large aperture and long focal length.

The invention relates to the field of optical lenses, and discloses an imaging optical lens. The imaging optical lens sequentially includes: a first lens with positive refractive power, a second lens, a third lens, and a fourth lens from the object side to the image side , the fifth lens, the sixth lens, the seventh lens and the eighth lens; wherein, the optical total length of the imaging optical lens is TTL, the focal length of the imaging optical lens is f, and the focal length of the second lens is f2, The central radius of curvature of the object side of the fourth lens is R7, the central radius of curvature of the image side of the fourth lens is R8, and the following relational expressions are satisfied: 0.95≤f / TTL; ‑4.00≤f2 / f≤‑1.90; ‑15.00≤(R7+R8) / (R7‑R8)≤‑2.50. The imaging optical lens provided by the invention not only has good optical performance, but also meets the design requirements of long focal length and ultra-thinning.

The invention relates to the field of optical lenses, and discloses a photographic optical lens. The photographic optical lens comprises six lenses in total, and the six lenses are in sequence from the object side to the image side: a first lens with positive refractive power and a negative refractive power The second lens, the third lens with negative refractive power, the fourth lens with negative refractive power, the fifth lens with positive refractive power, and the sixth lens with negative refractive power; the focal length of the imaging optical lens is f, the second lens The focal length of the lens is f2, the radius of curvature of the center of the object side of the third lens is R5, the radius of curvature of the center of the image side of the third lens is R6, the radius of curvature of the center of the object side of the fifth lens is R9, and the radius of curvature of the center of the image side of the fifth lens is R10. The axial thickness of the three lenses is d5, the axial distance from the image side of the third lens to the object side of the fourth lens is d6, and the following relationship is satisfied: ‑2.50≤f2 / f≤‑1.20; 3.50≤(R5+R6) / ( R5‑R6)≤12.00; 4.00≤R10 / R9; 0.50≤d5 / d6≤1.20. The camera optical lens has the characteristics of ultra-thin, wide-angle and large aperture.

The invention relates to the field of optical lenses, and discloses a photographic optical lens. The photographic optical lens comprises in sequence from the object side to the image side: a first lens with positive refractive power, a second lens, a third lens, a fourth lens, The fifth lens, the sixth lens, the seventh lens, and the eighth lens; wherein, the focal length of the imaging optical lens is f, the optical total length of the imaging optical lens is TTL, the focal length of the second lens is f2, and the fourth lens has a focal length on the object side. The central radius of curvature is R7, the central radius of curvature of the image side surface of the fourth lens is R8, and the following relations are satisfied: 0.95≤f / TTL; ‑4.00≤f2 / f≤‑2.00; 2.50≤(R7+R8) / (R7 ‑R8)≤15.00. The imaging optical lens provided by the present invention not only has good optical performance, but also meets the design requirements of large aperture, long focal length, and ultra-thinning (in a long focal length system).

The invention provides a photographing optical lens. In the direction from the object side to the image side, the photographing optical lens successively includes an aperture, a first lens with positive refractive power, a second lens with negative refractive power, and a second lens with negative refractive power. A third lens with positive refractive power, a fourth lens with positive refractive power and a fifth lens with negative refractive power, wherein the focal length of the imaging optical lens is f, the focal length of the first lens is f1, and the focal length of the third lens is The focal length is f3, the radius of curvature of the image side of the second lens is R2, the radius of curvature of the object side of the fifth lens is R9, and the radius of curvature of the image side of the fifth lens is R10, the above parameters satisfy the following relationship: 5.1≤R2 / f≤5.2; 3.4≤R9 / R10≤3.5; 8.3≤(f1+f3) / f≤8.5; this camera optical lens not only has good optical performance, but also meets the design requirements of wide-angle and ultra-thin.

The present invention relates to the field of optical lenses, and discloses a photographic optical lens. The photographic optical lens comprises seven lenses in total, and the seven lenses are in order from the object side to the image side: a first lens, a second lens, a Three lenses, a fourth lens, a fifth lens, a sixth lens, and a seventh lens; the Abbe number of the fifth lens is v5, the Abbe number of the seventh lens is v7, and the Abbe number of the first lens The radius of curvature on the side of the object is R1, the radius of curvature on the image side of the first lens is R2, the radius of curvature on the object side of the second lens is R3, and the radius of curvature on the image side of the second lens is R4, The radius of curvature of the object side of the fourth lens is R7, the axial thickness of the fourth lens is d7, and satisfies the following relational formula: 20.00≤R7 / d7≤30.00; 20.00≤v7-v5≤30.00;-12.00 ≤(R1-R2) / (R3-R4)≤-1.00. The imaging optical lens of the present invention has good optical performances such as large aperture, wide-angle, and ultra-thin.

The present invention provides a photographic optical lens, the photographic optical lens comprises in sequence from the object side to the image side: a first lens with positive refractive power, a second lens with negative refractive power, a third lens with positive refractive power, The fourth lens with negative refractive power, the fifth lens with negative refractive power, and the sixth lens with refractive power; the focal length of the imaging optical lens is f, the focal length of the first lens is f1, and the focal length of the third lens is f3 , the radius of curvature of the object side of the fourth lens is R7, and the radius of curvature of the image side of the fourth lens is R8 to satisfy the relational formula: 0.60≤f1 / f≤0.80; 2.00≤f3 / f≤5.00; 2.00≤(R7+R8) / (R7‑R8)≤4.50. The camera optical lens can meet the design requirements of large aperture and long focal length while having good optical performance.

The present invention provides a kind of photographing optical lens, it comprises from object side to image side in sequence: first lens, second lens, third lens, fourth lens, fifth lens; The focal length of photographing optical lens is f, the first lens The focal length of one lens is f1, the focal length of the third lens is f3, the focal length of the fourth lens is f4, the focal length of the fifth lens is f5, the radius of curvature of the object side of the fourth lens is R7, and the curvature of the image side of the fourth lens The radius is R8, the on-axis thickness of the first lens is d1, the on-axis distance from the image side of the first lens to the object side of the second lens is d2, the on-axis thickness of the second lens is d3, and the image side of the third lens is to the fourth lens The on-axis distance d4 on the side of the object satisfies the following relationship: ‑8.50≤(f1+f3+f5) / f≤‑6.50; 0.00≤(R7+R8) / (R7‑R8)≤1.00; 1.20≤d2 / d1 ≤2.00; 0.80≤f4 / f≤1.50; 3.20≤d3 / d4≤5.00. The imaging optical lens provided by the invention has good optical performance and at the same time satisfies the design requirements of large aperture, wide angle and ultrathinness.

The invention relates to the field of optical lenses, and discloses a photographic optical lens. The photographic optical lens comprises eight lenses in total, and the eight lenses are in order from the object side to the image side: the first lens with positive refractive power, and the first lens with negative refractive power. The second lens with negative refractive power, the third lens with positive refractive power, the fifth lens with positive refractive power, the sixth lens with refractive power, the seventh lens with negative refractive power and the The eighth lens with negative refractive power; wherein, the total optical length of the imaging optical lens is TTL, the focal length of the imaging optical lens is f, the focal length of the second lens is f2, and the object side of the fifth lens is The central radius of curvature is R9, the central radius of curvature of the image side of the fifth lens is R10, and satisfies the following relational formula: 0.95≤f / TTL; -5.00≤f2 / f≤-2.00; 0.40≤(R9+R10) / (R9‑R10)≤1.00. The imaging optical lens provided by the invention not only has good optical performance, but also satisfies the design requirements of long focal length and ultrathinness.

The present invention relates to the field of optical lenses, and discloses a photographic optical lens, which comprises in sequence from the object side to the image side: a first lens with negative refractive power, a second lens with positive refractive power, and a second lens with positive refractive power. A third lens with a refractive power, a fourth lens with a negative refractive power, a fifth lens with a positive refractive power, and a sixth lens with a negative refractive power; wherein, the Abbe number of the third lens is v3, and the The focal length of the fourth lens is f4, the focal length of the fifth lens is f5, the central radius of curvature of the object side of the first lens is R1, the central radius of curvature of the image side of the first lens is R2, and satisfy The following relationships: 65.00≤v3≤95.00; R2 / R1≤‑2.00; ‑10.00≤f4 / f5≤‑2.00. The imaging optical lens provided by the invention not only has good optical performance, but also satisfies the design requirements of wide-angle and ultra-thin.

The invention relates to the field of optical lenses, and discloses a photographic optical lens. The photographic optical lens comprises eight lenses in total, and the eight lenses are sequentially from the object side to the image side: a first lens with positive refractive power, The second lens with negative refractive power, the third lens with negative refractive power, the fourth lens with negative refractive power, the fifth lens with negative refractive power, the sixth lens with positive refractive power, the seventh lens and the The eighth lens with negative refractive power; wherein, the optical total length of the imaging optical lens is TTL, the focal length of the imaging optical lens is f, the focal length of the second lens is f2, the central radius of curvature of the object side of the eighth lens is R15, the eighth lens The central curvature radius of the mirror image side is R16, and satisfies the following relationship: 0.95≤f / TTL; -4.00≤f2 / f≤-1.80; -20.00≤(R15+R16) / (R15-R16)≤-3.00. The imaging optical lens provided by the invention not only has good optical performance, but also satisfies the design requirements of long focal length and ultrathinness.

The invention relates to the field of optical lenses, and discloses an imaging optical lens. The imaging optical lens includes, in order from the object side to the image side: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a The sixth lens, the seventh lens and the eighth lens, the first lens has a positive refractive power; wherein, the optical total length of the imaging optical lens is TTL, the focal length of the imaging optical lens is f, the focal length of the second lens is f2, and the The central radius of curvature of the object side of the seventh lens is R13, and the central radius of curvature of the image side of the seventh lens is R14, and the following relations are satisfied: 0.95≤f / TTL; 2.00≤f2 / f≤5.00;‑20.00≤(R13 +R14) / (R13‑R14)≤‑3.00. The imaging optical lens provided by the invention not only has good optical performance, but also meets the design requirements of long focal length and ultra-thinning.

The invention relates to the field of optical lenses, and discloses a photographic optical lens. The photographic optical lens comprises in sequence from the object side to the image side: a first lens with positive refractive power, a second lens with negative refractive power, and a positive refractive lens. The third lens of force; the overall focal length of the imaging optical lens is f, the focal length of the first lens is f1, the focal length of the third lens is f3, the radius of curvature of the object side of the first lens is R1, and the image side of the first lens is The radius of curvature is R2, the radius of curvature of the object side of the second lens is R3, the radius of curvature of the image side of the second lens is R4, the radius of curvature of the object side of the third lens is R5, and the radius of curvature of the image side of the third lens is is R6, the on-axis distance from the image side of the second lens to the object side of the third lens is d4, the on-axis thickness of the third lens is d5, and satisfies the following relationship: 0.75≤f1 / f≤0.95; 1.20≤f3 / f≤2.00; 0≤(R1+R2) / (R1‑R2)≤0.80; ‑3.50≤(R3+R4) / (R3‑R4)≤‑1.50; ‑8.00≤(R5+R6) / (R5 -R6)≤-2.50; 1.50≤d5 / d4≤4.00. The imaging optical lens of the present invention has good optical performances such as large aperture, wide-angle, and ultra-thin.

The invention provides a camera optical lens. The camera optical lens comprises five lenses in total. The five lenses are sequentially arranged from the object side to the image side: a first lens with a positive refractive power, a second lens with a positive refractive power, and a lens with a positive refractive power. The third lens with positive refractive power, the fourth lens with negative refractive power and the fifth lens with negative refractive power; the focal length of the camera optical lens is f, the focal length of the first lens is f1, and the axial thickness of the second lens is d3 , the axial thickness of the third lens is d5, the central radius of curvature of the object side of the fourth lens is R7, and the central radius of curvature of the image side of the fourth lens is R8, and the following relationship is satisfied: 1.20≤f1 / f≤4.00 ; 1.80≤d5 / d3≤3.50; 1.50≤(R7+R8) / (R7‑R8). The camera optical lens not only has good optical performance, but also meets the design requirements of large aperture, wide angle and ultra-thin.

The invention relates to the field of optical lenses, and discloses a camera optical lens, which comprises seven lenses in total, and the seven lenses are sequentially arranged from the object side to the image side: the first lens with positive refractive power, the first lens with negative refractive power The second lens, the third lens with positive refractive power, the fourth lens with negative refractive power, the fifth lens with refractive power, the sixth lens with positive refractive power, and the seventh lens with negative refractive power; imaging optics The focal length of the lens is f, the focal length of the third lens is f3, the Abbe number of the first lens is v1, the Abbe number of the second lens is v2, the curvature radius of the object side of the fourth lens is R7, and the image side of the fourth lens is The radius of curvature of the first lens is R8, the on-axis thickness of the first lens is d1, and the on-axis distance from the image side of the first lens to the object side of the second lens is d2, satisfying the relationship: 2.90≤v1 / v2≤4.50; 4.00≤ f3 / f≤10.00; 1.50≤d1 / d2≤4.00; 3.00≤R7 / R8. The imaging optical lens provided by the invention has good optical performance and at the same time satisfies the design requirements of large aperture, wide angle and ultrathinness.

The invention provides a photographic optical lens, the photographic optical lens comprises five lenses in total, and the five lenses are sequentially arranged from the object side to the image side: a first lens with positive refractive power, a second lens with negative refractive power, The third lens with positive refractive power, the fourth lens with positive refractive power and the fifth lens with negative refractive power; wherein, the focal length of the imaging optical lens as a whole is f, the focal length of the second lens is f2, and the focal length of the first lens is The on-axis distance from the image side to the object side of the second lens is d2, the on-axis distance from the image side of the second lens to the object side of the third lens is d4, and the central radius of curvature of the object side of the fourth lens is R7. The radius of curvature of the center of the image side of the four lenses is R8, and satisfies the following relational formula: -6.00≤f2 / f≤-3.00; -20.00≤(R7+R8) / (R7-R8)≤-2.00; 1.60≤d2 / d4≤6.00. The camera optical lens not only has good optical performance, but also meets the design requirements of wide-angle and ultra-thin.

The present invention provides an imaging optical lens, which comprises in sequence from the object side to the image side: a first lens with positive refractive power, a second lens with negative refractive power, a third lens with positive refractive power, and a lens with positive refractive power. The fourth lens and the fifth lens with negative refractive power; the overall focal length of the imaging optical lens is f, the focal length of the first lens is f1, the focal length of the second lens is f2, and the radius of curvature of the object side of the second lens is R3, The radius of curvature of the image side of the second lens is R4, 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, and the distance from the image side of the fourth lens to the object side of the fifth lens is The on-axis distance is d8, the on-axis thickness of the fifth lens is d9, and the following relationship is satisfied: 0.50≤f1 / f≤0.80; -1.20≤f2 / f≤-0.70; 1.50≤d8 / d9≤3.00; -1.50 ≤R3 / R4≤‑0.60; 1.20≤R7 / R8≤2.00. While the camera optical lens has good optical performance, it also meets the design requirements of large aperture, long focal length and ultra-thinness.

The invention relates to the field of optical lenses, and discloses an imaging optical lens. The photographic optical lens comprises in sequence from the object side to the image side: an aperture, a first lens with positive refractive power, a second lens with negative refractive power, a third lens with positive refractive power, and a 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 imaging optical lens is f, the focal length of the second lens is f2, and the The radius of curvature on the object side of the third lens is R5, and the radius of curvature on the image side of the third lens is R6, which satisfies the following relationship: -2.50≤(R5+R6) / (R5-R6)≤-1.00; -7.00≤ f2 / f≤‑3.50. The camera optical lens can meet the design requirements of large aperture, ultra-thin and wide-angle while having good optical performance.

The invention relates to the field of optical lenses, and discloses a photographic optical lens. The photographic optical lens comprises eight lenses in total, and the eight lenses are in order from the object side to the image side: a first lens with positive refractive power, Second lens with refractive power, third lens with negative refractive power, fourth lens with positive refractive power, fifth lens with positive refractive power, sixth lens with negative refractive power, seventh lens with positive refractive power A lens and an eighth lens with negative refractive power; wherein, the focal length of the imaging optical lens is f, the total optical length of the imaging optical lens is TTL, the focal length of the second lens is f2, and the central radius of curvature of the object side of the seventh lens is R13, The central curvature radius of the image side of the seventh lens is R14, and satisfies the following relationship: 0.95≤f / TTL; -4.50≤f2 / f≤-1.90; 0.30≤(R13+R14) / (R13-R14)≤1.00. The imaging optical lens provided by the invention has good optical performance and at the same time meets the design requirements of long focal length and ultrathinness (in a long focal length system).