Abstract: Provided is a camera optical lens, including first, second and fifth lenses having negative refractive power, third, fourth and sixth lenses having positive refractive power. The first and third lenses are made of glass material. Refractive index of third lens is n3, focal length of first lens is f1, focal length of second lens is f2, on-axis thickness of fifth lens is d9, on-axis distance between fifth and sixth lenses is d10, central curvature radii of object-side and image-side surfaces of second lens are R3 and R4, total track length, image height, and field of view of the camera optical lens is TTL, IH, and FOV, respectively, and following relations are satisfied: n3?1.70; 1.00?f2/f1?2.00; 1.30?d10/d9?4.00; 1.70?R4/R3?4.00; 0.02?TTL/(IH*FOV)?0.03. The camera optical lens has excellent optical characteristics and characteristics of large aperture, ultra-wide-angle, and miniaturization, and is particularly suitable for various kinds of camera lens assemblies.

Abstract: A camera optical lens includes, from an object side to an image side: a first lens having positive refractive power; a second lens having positive refractive power; a third lens having negative refractive power; a fourth lens having positive refractive power; and a fifth lens having positive refractive power. The first lens is made of glass material. At least one of the second, third, fourth and fifth lenses is made of glass material. Working temperature of the camera optical lens ranges from ?40° C. to 105° C. The camera optical lens satisfies following conditions: 1.50?TTL/f?4.00; 1.70?n1?2.20; and R3/R4??2.00, f denotes a focal length of the camera optical lens; TTL denotes a total optical length; n1 denotes a refractive index of the first lens; R3 denotes a central curvature radius of an object-side surface of the second lens, and R4 denotes a central curvature radius of an image-side surface of the second lens.

Abstract: The present application relates to the field of optical lenses and discloses an optical camera lens including, in order from an objective side to an image side: a first lens having a negative refractive force, a second lens having a negative refractive force, a third lens having a positive refractive force, a fourth lens having a positive refractive force, a fifth lens having a negative refractive force, and a sixth lens having a positive refractive force. The following relationship expressions are satisfied: 1.70?n1?2.20; ?2.30?f2/f??1.60; ?1.80?R11/R12??0.50; 0.10?f3/f4?0.50; 8.00?d5/d6?30.00. The optical camera lens provided by the present application has excellent optical performance while satisfying the design requirements of large aperture and ultra-wide angle.

Abstract: The present disclosure relates to the technical field of optical lens and discloses a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens having a positive refractive power, a second lens having a positive refractive power, a third lens having a negative refractive power, a fourth lens having a positive refractive power, a fifth lens having a refractive power; the first lens and the fourth lens being glass; wherein the camera optical lens satisfies following conditions: 1.70?n1?2.20, 0.10?R5/R6?0.90, 0.75?f4/f?1.55 and 0.60?d2/d3?3.00. The camera optical lens has good optical functions, while satisfying a design requirement of large aperture and fine temperature performance.

Abstract: The present disclosure provides a casing and a lens and relates to the technical field of optical equipment. The casing includes an outer casing provided with an accommodating hole and an inner casing accommodated in the outer casing and provided with a mounting hole. The outer casing is made of metal material, and a hardness of the inner casing is lower than a hardness of the outer casing, thereby the outer casing can meet the metal shape requirements of the lens. The relatively soft inner casing can solve the problem that a metal material cannot be tightly fitted with the lens group. The casing not only has advantages of metal profiles, but also can take a fitting structure with stacked outer diameters and a bumpy ridge fitting structure into account due to providing the relatively soft inner casing inside, which is more beneficial for lenses with high performance requirements.

Abstract: Provided is a camera optical lens which includes from an object side to an image side: first lens having negative refractive power, second lens having negative refractive power, third lens having positive refractive power, fourth lens having negative refractive power, and fifth lens having positive refractive power. The first lens is made of glass material. A refractive index of the first lens is n1, a central curvature radius of an object-side surface of the second lens is R3, a central curvature radius of an image-side surface of the second lens is R4, a focal length of the third lens is f3, a focal length of the camera optical lens is f, and following relations are satisfied: 1.70?n1?2.10; 3.20?(R3+R4)/(R3?R4)?4.70; and 3.00?f3/f?5.00. The camera optical lens has excellent optical characteristics and characteristics of large aperture, ultra-thin, and ultra-wide-angle.

Abstract: Provided is a camera optical lens, including first, second and fifth lenses having negative refractive power, third, fourth and sixth lenses having positive refractive power. The first and third lenses are made of glass material. Refractive index of third lens is n3, focal length of first lens is f1, focal length of second lens is f2, on-axis thickness of fifth lens is d9, on-axis distance between fifth and sixth lenses is d10, central curvature radii of object-side and image-side surfaces of second lens are R3 and R4, total track length, image height, and field of view of the camera optical lens is TTL, IH, and FOV, respectively, and following relations are satisfied: n3?1.70; 1.00?f2/f1?2.00; 1.30?d10/d9?4.00; 1.70?R4/R3?4.00; 0.02?TTL/(IH*FOV)?0.03. The camera optical lens has excellent optical characteristics and characteristics of large aperture, ultra-wide-angle, and miniaturization, and is particularly suitable for various kinds of camera lens assemblies.

Abstract: The present application relates to the field of optical lenses and discloses a camera optical lens, including, in order from an objective surface to an image surface: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The following relationship expressions are satisfied: 0.95?f4/f?1.40; 0.30?d11/d12?1.00; 3.00?R1/R2?12.00; 1.20?(R9+R10)/(R9?R10)?3.20. The camera optical lens has excellent optical performance while satisfying the design requirements of large aperture and ultra-wide angle.

Abstract: The present application relates to the field of optical lenses and discloses an optical camera lens including, in order from an objective side to an image side: a first lens having a negative refractive force, a second lens having a negative refractive force, a third lens having a positive refractive force, a fourth lens having a positive refractive force, a fifth lens having a negative refractive force, and a sixth lens having a positive refractive force. The following relationship expressions are satisfied: 1.70?n1?2.20; ?2.30?f2/f??1.60; ?1.80?R11/R12??0.50; 0.10?f3/f4?0.50; 8.00?d5/d6?30.00. The optical camera lens provided by the present application has excellent optical performance while satisfying the design requirements of large aperture and ultra-wide angle.

Abstract: The present disclosure relates to the technical field of optical lens and discloses a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens having a positive refractive power, a second lens having a positive refractive power, a third lens having a negative refractive power, a fourth lens having a positive refractive power, a fifth lens having a refractive power; the first lens and the fourth lens being glass; wherein the camera optical lens satisfies following conditions: 1.70?n1?2.20, 0.10?R5/R6?0.90, 0.75?f4/f?1.55 and 0.60?d2/d3?3.00. The camera optical lens has good optical functions, while satisfying a design requirement of large aperture and fine temperature performance.

Abstract: A camera optical lens includes, from an object side to an image side: a first lens having positive refractive power; a second lens having positive refractive power; a third lens having negative refractive power; a fourth lens having positive refractive power; and a fifth lens having positive refractive power. The first lens is made of glass material. At least one of the second, third, fourth and fifth lenses is made of glass material. Working temperature of the camera optical lens ranges from ?40° C. to 105° C. The camera optical lens satisfies following conditions: 1.50?TTL/f?4.00; 1.70?n1?2.20; and R3/R4??2.00, f denotes a focal length of the camera optical lens; TTL denotes a total optical length; n1 denotes a refractive index of the first lens; R3 denotes a central curvature radius of an object-side surface of the second lens, and R4 denotes a central curvature radius of an image-side surface of the second lens.

Abstract: The present disclosure provides a casing and a lens and relates to the technical field of optical equipment. The casing includes an outer casing provided with an accommodating hole and an inner casing accommodated in the outer casing and provided with a mounting hole. The outer casing is made of metal material, and a hardness of the inner casing is lower than a hardness of the outer casing, thereby the outer casing can meet the metal shape requirements of the lens. The relatively soft inner casing can solve the problem that a metal material cannot be tightly fitted with the lens group. The casing not only has advantages of metal profiles, but also can take a fitting structure with stacked outer diameters and a bumpy ridge fitting structure into account due to providing the relatively soft inner casing inside, which is more beneficial for lenses with high performance requirements.

Abstract: The present application discloses a portable electronic device. The device includes a case; a camera lens fixed to the case; a sound generator attached to the case for producing sounds; and a central process unit and a circuit system for providing controlling current to the camera lens. The camera lens includes a side wall and a lens holder moveable relative to the side wall. The lens holder is driven to a predetermined position farther away from the case than an initial position, when the sound generator is producing sounds. The present application further provides a method for eliminating noise by applying controlling current to the lens holder to move the lens holder to a position farther away from the case for avoiding collision between the case and the lens holder.

Abstract: The present application discloses a portable electronic device. The device includes a case; a camera lens fixed to the case; a sound generator attached to the case for producing sounds; and a central process unit and a circuit system for providing controlling current to the camera lens. The camera lens includes a side wall and a lens holder moveable relative to the side wall. The lens holder is driven to a predetermined position farther away from the case than an initial position, when the sound generator is producing sounds. The present application further provides a method for eliminating noise by applying controlling current to the lens holder to move the lens holder to a position farther away from the case for avoiding collision between the case and the lens holder.