47results about How to "With long focal length" patented technology

The invention discloses an imaging lens. The imaging lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens sequentially from an object side and an image side along an optical axis, wherein the first lens has positive focal power, and the object side surface of the first lens is a convex surface; the second lens has negative focal power; the third lens has negative focal power, the object side surface of the third lens is a convex surface, and the image side surface of the third lens is a concave surface; the fourth lens has focal power; the fifth lens has positive focal power; the sixth lens has focal power, and the object side surface of the sixth lens is a concave surface; any two of the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are glued to form a glued lens group; and the combined focal length f12 of the first lens and the second lens, the curvature radius R1 of the object side surface of the first lens and the curvature radius R4 of the image side surface of the second lens meet the condition that 2.0<f12 / R1+f12 / R4 <3.3.

The embodiment of the invention discloses an optical system, a lens module and terminal equipment. The optical system comprises first lenses which are sequentially arranged from an object side to an image side and have positive refractive power. A third lens element with negative refractive power, a second lens element with refractive power, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element and an eighth lens element, the object-side surface of the first lens element being convex at the optical axis, the image-side surface of the third lens element beingconcave at the optical axis, and the image-side surface of the fourth lens element being convex at the optical axis; the optical system satisfies the following conditional expression: TTL / f < 1.1, wherein the TTL is the distance between the object side surface of the first lens and the imaging surface of the optical system on the optical axis, and the f is the focal length of the optical system.By reasonably configuring the refractive power and surface type of the first lens to the eighth lens in the optical system and limiting TTL / f to be less than 1.1, the optical system has the characteristic of long focal length and has good imaging quality while meeting the micro design.

The invention discloses an optical imaging lens. The optical imaging lens sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens from the objectside to the image side along the optical axis. The first lens has the positive focal power or the negative focal power, and the object side face of the first lens is provided with a convex face partlocated in a paraxial area and a convex face part located in an abaxial area; the second lens has the positive focal power or the negative focal power; the third lens has the positive focal power or the negative focal power, and the image side face of the third lens is provided with a concave face part located in the paraxial area and a concave face part located in the abaxial area; the fourth lens has the positive focal power or the negative focal power; the fifth lens has the positive focal power or the negative focal power; the six lens has the positive focal power or the negative focal power, and the image side face of the six lens is provided with a concave face part located in the paraxial area and a convex face part located in the abaxial area; and the optical imaging lens meets thefollowing conditions that the sum of CT1, CT3 and CT4 is greater than or equal to 1.39 mm and less than or equal to 1.44 mm, f / R1 is greater than or equal to 3.77 and less than or equal to 3.95, and(f*CT3) / sigma CT is greater than or equal to 0.54 mm and less than or equal to 0.62 mm.

The invention discloses a five-piece type imaging lens group. The five-piece type imaging lens group includes an aperture, a first lens having positive refractive power, a second lens having negativerefractive power, a third lens having negative refractive power, a fourth lens having negative refractive power, and a fifth lens having positive refractive power in an object side to image side order. The invention provides the five-piece type imaging lens group that can be applied to a portable electronic product, cannot make the total length of the lens too long and has a long focal length, a high pixel and a low lens height.

The invention discloses a camera module and electronic equipment. The camera module comprises a first lens assembly, a second lens assembly and a third lens assembly, wherein the first lens assembly is located in a shell of the electronic equipment; the second lens assembly can retract into and extend out of the shell of the electronic equipment, and an included angle is formed between the secondlens assembly and the first lens assembly; the photosensitive element is arranged on one side of the first lens assembly; the light guide part is arranged between the first lens assembly and the second lens assembly, and light penetrating through the second lens assembly is suitable for being guided into the first lens assembly through the light guide part. According to the embodiment of the invention, the camera module has the advantages of long focal length and small height, the overall structure of the camera module is more compact, the overall size is smaller, the height is smaller, the packaging size is reduced, the thickness of the whole machine is reduced, the whole machine is lightened and thinned, and the placement of other devices in the whole machine is facilitated. Moreover, popup of the second lens assembly can be conveniently realized, and the optical path is prolonged.

The invention discloses a large-target-surface high-resolution zoom digital camera lens. The large-target-surface high-resolution zoom digital camera lens is characterized in that the lens is sequentially provided with a front fixing group with positive focal power, a zooming group with negative focal power, a compensating group with positive focal power, a variable aperture component and a rear fixing group with positive focal power which are all arranged along the incident direction of the light; the front fixing group is sequentially provided with a front-fixing-group gluing lens, a biconvex lens and a second crescent lens; the zooming group is sequentially provided with a zooming-group gluing lens and a negative crescent lens; the compensating group is sequentially provided with a compensating-group gluing lens hermitically connected through the compensating-group negative crescent lens and the compensating-group biconvex lens and a compensating-group crescent lens; the rear fixing group is sequentially provided with a first biconcave lens, a first positive crescent lens, a rear-fixing-group reflective lens, a rear-fixing-group gluing lens hermitically connected through the second biconcave lens and the second positive crescent lens, a first biconvex lens, the negative crescent lens and a second biconvex lens. By the arrangement, problems that a small lens system is small in target surface and low in resolution can be solved on the small-sized lens.

The invention relates to the field of optical lenses, and discloses a camera shooting optical lens. The camera shooting optical lens sequentially comprises the following components from an object sideto an image side: a first lens having positive refractive power, a second lens having negative refractive power, a third lens having negative refractive power, a fourth lens having positive refractive power, and a fifth lens having negative refractive power; the focal length of the camera shooting optical lens is f, the focal length of the first lens is f1, the on-axis thickness of the third lens is d5, the on-axis distance from an image side face of the third lens to an object side face of the fourth lens is d6, the radius of curvature of the object side face of the fourth lens is R7, the radius of curvature of the image side face of the fourth lens is R8, and the following relational expressions are satisfied: f1 / f is greater than or equal to 0.40 and is less than or equal to 0.60; d6 / d5 is greater than or equal to 7.00 and is less than or equal to 15.00; and (R7 + R8) / (R7-R8) is greater than or equal to 6.00 and is less than or equal to 30.00. The camera shooting optical lens provided by the invention has good optical performance and meets the design requirements of long focal length and ultra-thin.

The invention provides a shooting optical lens. The shooting optical lens comprises a first lens with a positive refractive power, a second lens with a negative refractive power, a third lens with a negative refractive power, a fourth lens with a positive refractive power, a fifth lens with a refractive power, and a sixth lens with a negative refractive power successively from the object side to the image side; the focal length of the shooting optical lens is f, the focal length of the first lens is f1, 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; and the following relations that 0.40<=f1 / f<=0.60, and 10.00<=d1 / d2<=35.00 are satisfied. The shooting optical lens has high optical performance and satisfies the design requirements of wide angle and super thinning.

The invention relates to the field of the optical lens, and discloses a pick-up optical lens. The pick-up optical lens comprises a first lens with positive refraction power, a second lens with negative refraction power, a third lens with positive refraction power, a fourth lens with negative refraction power and a fifth lens from an object side to an image side; the curvature radius of the first lens image side is R2, the curvature radius of the first lens object side is R1, the focal length of the third lens is f3, the entire focal length of the pick-up optical lens is f, the on-axis range tothe object side of the third lens from the image side of the second lens is d4, the on-axis thickness of the second lens is d3, the refractive index of the fourth lens is n4, and the following relation formulas are satisfied: R1 / R1 is not less than -20.00 and not more than -2.00, f3 / f is not less than 0.50 and not less than 3.50, d4 / d3 is not less than 1.50 and not more than 5.00, and n4 is not less than 1.69 and not more than 2.10. The pick-up optical lens provided by the invention can satisfy the design requirements of large aperture and long focal length when the good optical performance is provided.

The invention provides an optical imaging lens. The optical imaging lens comprises a prism that is configured such that light entering the prism along the direction of an X optical axis is emitted from the prism along the direction of a Y optical axis after being reflected, wherein the X optical axis is vertical to the Y optical axis. The optical imaging lens comprises the following components along the Y optical axis from the prism to an image side: a first lens having the positive focal power, wherein the object side surface of the first lens is a convex surface; a second lens having the negative focal power, wherein the object side surface of the second lens is a concave surface; a third lens with the focal power, wherein the object side surface of the third lens is a convex surface; afourth lens with the focal power, wherein the object side surface of the fourth lens is a concave surface and the image side surface is a convex surface; and a fifth lens with the focal power. The center thickness CT1 of the prism on the optical axis and the center thickness CT2 of the first lens on the optical axis satisfy that CT2 / CT1 is greater than 1.0 but less than 2.0.

The application discloses an optical imaging system, which comprises a first lens, a second lens, a third lens, a first prism, and a second prism which are sequentially arranged from an object side along a first direction. The first prism reflects light incident to the first prism along the first direction to be emitted from the first prism along a second direction; the second prism is arranged ina second direction and reflects light emitted from the first prism and incident to the second prism in the second direction into light emitted from the second prism in a third direction, and the first direction, the second direction and the third direction are perpendicular to one another; and the total effective focal length f of the optical imaging system meets the condition that f is larger than 20 mm.

The invention relates to the technical field of lenses. The invention discloses an optical imaging lens, which comprises lenses from the first to the tenth which are sequentially arranged from an object side to an image side along an optical axis, wherein the first lens is a convex-convex lens having a positive refractive index; the second lens is a convex-convex lens having a positive refractiveindex; the third lens is a concave-concave lens having a negative refractive index; the fourth lens has a positive refractive index and a convex object side surface; the fifth lens is a concave-concave lens having a negative refractive index; the sixth lens is a convex-convex lens having a positive refractive index; the seventh lens is a concave-concave lens having a negative refractive index; theeighth lens is a convex-concave lens having a negative refractive index; the ninth lens is a convex-convex lens having a positive refractive index; the tenth lens is a concave-convex lens having a negative refractive index; and the second lens and the third lens are glued to each other, the fourth lens and the fifth lens are glued to each other, the sixth lens and the seventh lens are glued to each other, and the eighth lens and the ninth lens are glued to each other. The optical imaging lens has the advantages of good infrared confocality, good imaging quality, small defocusing or defocusing-free property at high and low temperatures.

The invention relates to the field of optical lenses, and discloses a camera shooting optical lens, which sequentially comprises a first lens with positive refractive power, a second lens with negative refractive power, a third lens with negative refractive power, a fourth lens and a fifth lens with negative refractive power from an object side to an image side; the focal length of the camera shooting optical lens is f, the focal length of the first lens is f1, the focal length of the third lens is f3, the on-axis distance from the image side surface of the third lens to the object side surface of the fourth lens is d6, the on-axis thickness of the fourth lens is d7, the center curvature radius of the object side surface of the fifth lens is R9, the center curvature radius of the image side surface of the fifth lens is R10, and the fifth lens satisfies the following relational expressions: 0.30<=f1 / f<=0.50; -4.00<=f3 / f<=-1.20; 2.00<=d6 / d7<=8.00; 3.00<=R9 / R10<=10.00. The camera shootingoptical lens provided by the invention has good optical performance and also meets the design requirements of long focal length and ultra-thinness.

The invention relates to the field of optical lenses, and discloses an image pickup optical lens, which sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, asixth lens, a seventh lens and an eighth lens from an object side to an image side, wherein the first lens has positive refractive power, the total optical length of the image pickup optical lens isTTL, the focal length of the image pickup optical lens is f, the focal length of the second lens is f2, the central curvature radius of the object side surface of the seventh lens is R13, the centralcurvature radius of the image side surface of the seventh lens is R14, and the following relational expressions are satisfied: 0.95<=f / TTL; 3.00<=f2 / f<=5.50; 3.00<=(R13+R14) / (R13-R14)<=25.00. The image pickup optical lens provided by the invention has good optical performance and also meets the design requirements of long focal length and ultra-thinness.

The invention relates to the field of optical lenses, and discloses an image pickup optical lens, which sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, asixth lens, a seventh lens and an eighth lens from an object side to an image side, and the first lens has positive refractive power; the total optical length of the image pickup optical lens is TTL,the focal length of the image pickup optical lens is f, the focal length of the second lens is f2, the central curvature radius of the object side surface of the seventh lens is R13, the central curvature radius of the image side surface of the seventh lens is R14, and the following relational expressions are satisfied: 0.95<=f / TTL; 2.00<=f2 / f<=5.00; -20.00<=(R13+R14) / (R13-R14)<=-3.00. The imagepickup optical lens provided by the invention has good optical performance and also meets the design requirements of long focal length and ultra-thinness.

The invention relates to the field of optical lenses, and discloses an image pickup optical lens, which sequentially comprises a first lens with positive refractive power, a second lens, a third lens,a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens with positive refractive power from an object side to an image side, and the first lens has positive refractive power; thetotal optical length of the positive refractive power is TTL, the focal length of the positive refractive power is f, the focal length of the second lens is f2, the central curvature radius of the object side surface of the sixth lens is R11, the central curvature radius of the image side surface of the sixth lens is R12, and the following relational expressions are satisfied: 0.95<=f / TTL; 3.20<=f2 / f<=5.00; 0.20<=(R11+R12) / (R11-R12)<=0.90. The positive refractive power provided by the invention has good optical performance and also meets the design requirements of long focal length and ultra-thinness.

The invention relates to a four-piece imaging lens group, which comprises an aperture, a first lens having positive refractive power, a second lens having negative refractive power, a third lens having positive refractive power and a fourth lens having negative refractive power in sequence from the object side to the image side. Thus, the invention provides a four-piece imaging lens group which can be applied to portable electronic products, has total lens length which is not too great, and has long focus, high pixel and low lens height.

The invention relates to the field of optical lenses and discloses a camera shooting optical lens. The camera shooting optical lens comprises eight lenses in total, wherein the eight lenses are sequentially a first lens with positive refractive power, a second lens with negative refractive power, a third lens with negative refractive power, a fourth lens, a fifth lens with positive refractive power, a sixth lens with negative refractive power, a seventh lens with positive refractive power and an eighth lens with negative refractive power from the object side to the image side, the total optical length of the camera shooting optical lens is TTL, the focal length of the camera shooting optical lens is f, the focal length of the second lens is f2, the central curvature radius of the object side surface of the seventh lens is R13, the central curvature radius of the image side surface of the seventh lens is R14, and the following relational expressions are satisfied, 0.95 < / = f / TTL, -4.50< / = f2 / f < / =-2.00, -0.90 < / = (R13+R14) / (R13-R14) < / =-0.25. The camera shooting optical lens provided by the invention has good optical performance and further meets design requirements of long focal length and ultra-thinness.

The present 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 negative lens with negative refractive power. The third lens, the fourth lens and the 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 f3, the axial distance from the image side of the third lens to the object side of the fourth lens is d6, the axial thickness of the fourth lens is d7, and the central radius of curvature of the object side of the fifth lens is R9, the central radius of curvature of the image side of the fifth lens is R10, and satisfies the following relational formula: 0.30≤f1 / f≤0.50; -4.00≤f3 / f≤-1.20; 2.00≤d6 / d7≤8.00; 3.00≤R9 / R10≤10.00. 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 a camera shooting optical lens, which sequentially comprises a first lens with positive refractive power, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens from an object side to an image side; the total optical length of the camera shooting optical lens is TTL, the focal length of the camera shooting optical lens is f, the focal length of the second lens is f2, the central curvature radius of the object side surface of the fifth lens is R9, the central curvature radius of the image side surface of the fifth lens is R10, and the following relational expressions are satisfied: 0.95<=f / TTL; 3.20<=f2 / f<=5.50; 0.30<=(R9+R10) / (R9-R10)<=1.00. The camera shooting optical lens provided by the invention has good optical performance and also meets the design requirements of long focal length and ultra-thinness.