Abstract: An imaging optics including, in sequence starting from the object side, of a 1st lens G1 with a negative refractive power, a 2nd lens G2 with a positive refractive power, a 3rd lens G3 with a positive refractive power, and a 4th lens G4, a 5th lens G5, a 6th lens G6, and a 7th lens G7 with a negative refractive power, satisfying the conditional expressions.

Abstract: A photographing optical lens assembly includes eight lens elements, which are, in order from an object side to an image side along an optical path, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element and an eighth lens element. Each of the eight lens elements has an object-side surface towards the object side and an image-side surface towards the image side. The first lens element has positive refractive power. The object-side surface of the fifth lens element is concave in a paraxial region thereof. The image-side surface of the sixth lens element is concave in a paraxial region thereof. The object-side surface of the seventh lens element is convex in a paraxial region thereof. The image-side surface of the eighth lens element is concave in a paraxial region thereof.

Abstract: The present disclosure a camera optical lens is provided including, from an object side to an image side: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a negative refractive power; a fourth lens having a positive refractive power; and a fifth lens having a negative refractive power. The camera optical lens satisfies following conditions: 0.40?f1/f?0.48; ?0.75?f2/f??0.50; 1.20?f4/f?3.20; ?1.40?f5/f??1.10; 6.00?d1/d2?8.00; 0.80?(R5+R6)/(R5?R6)?6.50; and 3.00?(R7+R8)/(R7?R8)?10.00. The camera optical lens can achieve good optical performance while meeting the design requirements for long focal length and ultra-thinness.

Abstract: The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: 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. The camera optical lens satisfies following conditions: 3.50?f1/f?6.50; f2?0; and 1.55?n8?1.70, where f denotes a focal length of the camera optical lens; f1 denotes a focal length of the first lens; f2 denotes a focal length of the second lens; and n8 denotes a refractive index of the eighth lens. The present disclosure can achieve ultra-thin, wide-angle lenses having a big aperture.

Abstract: Provided is a camera optical lens including, sequentially from an object side to an image side: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a negative refractive power; a fifth lens having a positive refractive power; a sixth lens having a positive refractive power; and a seventh lens having a negative refractive power. The camera optical lens satisfies following conditions: 3.00??1/?2?4.30; ?5.00?f2/f??2.00; and 2.50?(R9+R10)/(R9?R10)?15.00. The camera optical lens can achieve high optical performance while satisfying design requirements for ultra-thin, wide-angle lenses having large apertures.

Abstract: The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: 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. The camera optical lens satisfies following conditions: 3.50?f1/f?6.50; f2?0; and 1.55?n7?1.70, where f denotes a focal length of the camera optical lens; f1 denotes a focal length of the first lens; f2 denotes a focal length of the second lens; and n7 denotes a refractive index of the seventh lens. The present disclosure can achieve ultra-thin, wide-angle lenses having a big aperture.

Abstract: There is provided a compact imaging lens configured to properly correct aberrations. The imaging lens includes, in order from an object side to an image side, a first lens L1 having negative refractive power, a second lens L2 having positive refractive power, a third lens L3 having negative refractive power, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventh lens L7, and an eighth lens L8 having negative refractive power. The eighth lens L8 has an aspheric image-side surface having at least one inflection point.

Abstract: The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: 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. The camera optical lens satisfies following conditions: 1.95?f1/f?3.20; f2?0; and 1.55?n7?1.70, where f denotes a focal length of the camera optical lens; f1 denotes a focal length of the first lens; f2 denotes a focal length of the second lens; and n7 denotes a refractive index of the seventh lens. The present disclosure can achieve ultra-thin, wide-angle lenses having a big aperture.

Abstract: Provided is a camera optical lens, which includes, from an object side to an image side: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a negative refractive power; a fifth lens having a negative refractive power; a sixth lens having a negative refractive power; a seventh lens having a positive refractive power; and an eighth lens having a negative refractive power. The camera optical lens satisfies following conditions: 3.50?f1/f?6.50; f2?0.00; and 1.55?n5?1.70, where f denotes a focal length of the camera optical lens; f1 denotes a focal length of the first lens; f2 denotes a focal length of the second lens; and n5 denotes a refractive index of the fifth lens. The present disclosure can achieve high optical performance while achieving ultra-thin, wide-angle lenses having a big aperture.

Abstract: In various embodiments, one or more prisms are utilized in a wavelength beam combining laser system to regulate beam size and/or to provide narrower wavelength bandwidth.

Abstract: An imaging lens includes a first lens having positive refractive power; a second lens having negative refractive power; a third lens having positive refractive power; a fourth lens having negative refractive power; a fifth lens; a sixth lens; a seventh lens; an eighth lens; and a ninth lens having negative refractive power, arranged in this order from an object side to an image plane side. The ninth lens is formed in a shape so that a surface thereof on the image plane side has an aspherical shape having an inflection point.

Abstract: The present invention provides a camera optical lens satisfying following conditions: 0.04?R1/R2?0.07, ?3.60?R3/R4??2.50, 1.55?R5/R6?1.80, 2.80?R9/R10?3.20, 0.65?d8/d9?0.85, and 0.56?d6/d8?0.60; where R1 and R1 respectively denote a curvature radius of an object-side surface and image-side surface of a first lens; R3 and R4 respectively denote a curvature radius of an object-side surface and image-side surface of a second lens; R5 and R6 respectively denote a curvature radius of an object-side surface and image-side surface of a third lens; R9 and R10 respectively denote a curvature radius of an object-side surface and image-side surface of a fifth lens; d6 and d8 respectively denote an on-axis distance from the third lens to the fourth lens and from the fourth lens to the fifth lens; and d9 denotes an on-axis thickness of the fifth lens.

Abstract: The present disclosure discloses a camera lens assembly. The camera lens assembly includes, sequentially from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. The first lens has a positive refractive power. The second lens has a negative refractive power. The third lens has a positive refractive power or a negative refractive power. The fourth lens has a positive refractive power. The fifth lens has a negative refractive power. An effective focal length f of the camera lens assembly and a combined focal length f45 of the fourth lens and the fifth lens satisfy: ?1.0<f/f45??0.5. The camera lens assembly according to the present disclosure is an ultra-thin telephoto lens assembly structure having 5 lenses and high pixels, which may obtain a good image quality and a good processing and manufacturing performance.

Abstract: The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: 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. The camera optical lens satisfies following conditions: 1.90?f1/f?3.00; f2?0.00; and 1.55?n3?1.70, where f denotes a focal length of the camera optical lens; f1 denotes a focal length of the first lens; f2 denotes a focal length of the second lens; and n3 denotes a refractive index of the third lens. The present disclosure can achieve high optical performance while achieving ultra-thin, wide-angle lenses having a big aperture.

Abstract: The present invention relates to the technical field of optical lens and discloses a camera optical lens satisfying following conditions: ?0.50?f1/f2??0.35; 5.00?f3/f?14.00; ?3.10?(f2+f5)/f??2.40; 3.00?(R3+R4)/(R3?R4)?4.00; 1.20?(R7+R8)/(R7?R8)?1.30; 0.25?(R9+R10)/(R9?R10)?0.65; where f denotes a focal length of the camera optical lens; f1, f2, f3 and f5 respectively denote a focal length of the first, second, third and fifth lenses; R3, R7 and R9 respectively denote a curvature radius of an object-side surface of the second, fourth and fifth lenses; R4, R8 and R10 respectively denote a curvature radius of an image-side surface of the second, fourth and fifth lenses.

Abstract: An optical imaging lens includes, sequentially from an object side to an image side along an optical axis, a first to seventh lens elements each having an object-side surface and an image-side surface. The optical imaging lens satisfies a conditional expression: (G56+T6+G67)/(TG34+GT45)?2.600. G56 is an air gap from the fifth to the sixth lens element along the optical axis. T6 is a thickness of the sixth lens element along the optical axis. G67 is an air gap from the sixth to the seventh lens element along the optical axis. TG34 is a distance from the object-side surface of the third lens element to the object-side surface of the fourth lens element along the optical axis. GT45 is a distance from the image-side surface of the fourth lens element to the image-side surface of the fifth lens element along the optical axis.

Abstract: An image capturing optical lens assembly includes five lens elements, in order from an object side to an image side along an optical path, being a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof. The second lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The fourth lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The fifth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. At least one of surfaces of the fifth lens element includes at least one critical point in an off-axis region thereof.

Abstract: An optical imaging lens includes a first lens element to an eighth lens element, and each lens element has an object-side surface and an image-side surface. The first lens element has positive refracting power, an optical axis region of the image-side surface of the first lens element is concave, the second lens element has negative refracting power, a periphery region of the object-side surface of the second lens element is concave, and an optical axis region of the object-side surface of the eighth lens element is convex. The lens elements having refracting power included by the optical imaging lens are only the eight lens elements described above. The optical imaging lens satisfies the following conditions: D61t82/D21t42?1.750.

Abstract: An imaging lens assembly includes seven lens elements which are, in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. Each of the seven lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The second lens element has positive refractive power. The sixth lens element has positive refractive power, and the image-side surface of the sixth lens element is convex in a paraxial region thereof. The seventh lens element has negative refractive power. At least one of the object-side surface and the image-side surface of at least one lens element of the imaging lens assembly is aspheric and has at least one inflection point.

Abstract: The present disclosure provides a camera optical lens satisfying following conditions: ?0.50?f1/f2??0.3; 50.00?f3/f?75.0; ?2.40?(f2+f5)/f??2.00; 0.70?(R3+R4)/(R3?R4)?0.95; 1.30?(R7+R8)/(R7?R8)?1.60; and 0.40?(R9+R10)/(R9?R10)?0.75; where f denotes a focal length of the camera optical lens; f1, f2, f3 and f5 respectively denote a focal length of a first, second, third and fifth lenses; R3 and R4 respectively denote a curvature radius of an object-side surface and an image-side surface of the second lens; R7 and R8 respectively denote a curvature radius of an object-side surface and an image-side surface of a fourth lens; and R9 and R10 respectively denote a curvature radius of an object-side surface and an image-side surface of the fifth lens. The camera optical lens in the present disclosure satisfies a design requirement of large aperture, wide angle and ultra-thinness while having good optical performance.