Abstract: Provided are an optical lens, a camera module and a front camera. From an object side to an Imaging plane, the optical lens sequentially includes: a stop; a first lens having a positive focal power and a concave object side surface; a second lens having a negative focal power and a concave image side surface; a third lens having a positive focal power, a convex object side surface and a concave image side surface; a fourth lens having a positive focal power, a concave object side surface and a convex image side surface; a fifth lens having a negative focal power. An entrance pupil diameter EPD of the optical lens is smaller than 1.58 mm, and the maximum distance between the projection of an entrance pupil and the projection of the object side surface of the first lens on the optical axis is greater than 0.17 mm.

Abstract: Disclosed are an optical lens, a camera module and a terminal camera. From an object side to an image side, the optical lens include: a first lens with a negative focal power, which has a convex object side surface and a concave image side surface; a stop; a second lens with a positive focal power, which has a convex object side surface and a concave image side surface; a third lens with a positive focal power, which has a convex object side surface and a concave image side surface; a fourth lens with a positive focal power, which has a convex object side surface and a convex image side surface; a fifth lens with a negative focal power, an object side surface of the fifth lens is convex at a paraxial region and an image side surface of the fifth lens is concave at a paraxial region; and a filter.

Abstract: Disclosed are an optical lens, a camera module and a camera. From an object side to an image side along an optical axis, the optical lens includes: a first lens having a positive focal power and a convex object side surface; a second lens having a negative focal power; a third lens having a negative focal power; a fourth lens having a negative focal power; a fifth lens having a positive focal power, an object side surface of the fifth lens is convex at a paraxial region thereof, and an image side surface of the fifth lens is concave at a paraxial region thereof; a stop disposed between the second and third lens; and a filter disposed between the fifth lens and an imaging plane. The camera module includes the optical lens and an image sensor, and the camera includes the camera module.

Abstract: The disclosure provides a double barrels lens, a lens module, and an assembling method therefor. The double barrels lens includes a first barrel and a second barrel. The first barrel comprises a first end, a second end and a lens group. External screw threads are provided on an outer surface of the second end. The second barrel includes a first end surface, a second end surface and an inner surface with internal screw threads. The internal screw threads of the second barrel are engaged with the external screw threads of the first barrel. A distance H between an optical center of the lens group and the second end surface of the second barrel, a focal length f of the lens group, and a correction coefficient ? meet the expression: H=f+?.

Abstract: The disclosure provides an optical lens, an imaging device, a fingerprint recognition module and a mobile terminal, along an optical axis from an object side to an image side, the optical lens sequentially including: a flat glass, a first lens, a stop, a second lens, a third lens, and an infrared filter. The optical lens satisfy a high-quality resolution, also have the advantages of small size, small distortion, and high relative illumination, they can effectively improve the rate of the fingerprint recognition, and more suitable for the design requirements of the full screen of the mobile phones. Meanwhile, the three lenses of the optical lens of the present disclosure all use low refractive index materials, which greatly reduces the production cost, and is more in line with the low-cost and high-performance development trend of the full screen of the mobile phone.

Abstract: The disclosure provides a camera module and an assembling method therefor. The camera module includes a lens, a holder, an image sensor assembly, and one or more self-locking screws for fixing the lens, the holder and the image sensor assembly. The holder is provided with a lens mounting hole for assembling the lens and one or more screw holes for assembling the one or more self-locking screws. The holder includes a supporting platform, a location guiding sleeve and internal threads. The lens (100) includes external threads engaged with the internal threads, a location guiding step cooperated with the location guiding sleeve, and a limiting ring cooperated with the supporting platform.

Abstract: The disclosure provides an imaging lens. The imaging lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. The first lens with positive refractive power includes a convex object side surface and a concave image side surface. The second lens with negative refractive power includes a convex object side surface and a concave image side surface. The third lens with positive refractive power includes a convex object side surface and a convex image side surface in a paraxial region of the third lens. The fourth lens with a positive refractive power includes a concave object side surface and a convex image side surface. The fifth lens has positive refractive power. The sixth lens with negative refractive power includes a concave object side surface and a concave image side surface in a paraxial region of the sixth lens.

Abstract: The disclosure provides a telephoto lens and a mobile terminal, form an object side to an imaging surface, sequentially includes: a first lens having a positive refractive power, a second lens having a refractive power, a third lens having a negative refractive power, a flat glass and a filter. An object side surface of the first lens is a convex surface, an image side surface of the third lens is s concave surface. The mobile terminal includes the telephoto lens, an image sensor, a processor and a memory. The image sensor are coupled to the telephoto lens, the two are cooperated to capture images. The processor is configured to process the captured images, and the memory is configured to store the captured images. The telephoto lens and the mobile terminal provided in the disclosure can achieve a higher zoom ratio than the conventional telephoto lens, and better satisfy the requirements of miniaturization and high-definition imaging of electronic products.

Abstract: The disclosure provides a collimating lens, a projecting module, and a mobile phone. An object side of the collimating lens is defined as adjacent to a laser transmitter, an image side of the collimating lens is defined as adjacent to an object to be measured. Along an optical axis from the object side to the image side, the collimating lens sequentially includes a first lens, a second lens, a third lens and a stop. An object side surface of the first lens is convex, an object side surface of the second lens is concave surface, an object side surface of the third lens is convex, and an image side surface of the third lens is convex. The stop is positioned between the third lens and the object to be measured. The material of each of the first lens, the second lens, and the third lens is plastic.

Abstract: The disclosure provides an optical imaging lens, a camera module and a mobile phone. The optical imaging lens sequentially includes: a first lens having a positive refractive power, a convex object side surface and a concave image side surface; a second lens with a negative refractive power; a third lens with a positive refractive power; a fourth lens with a negative refractive power, wherein an object side surface of the fourth lens is concave at the paraxial region, and an image side surface of the fourth lens is convex at the paraxial region; a fifth lens with a negative refractive power, an image side surface of the fifth lens being concave at the paraxial region; a sixth lens with a positive refractive power; and a seventh lens with a negative refractive power.

Abstract: The disclosure provides a collimating lens. In order from a laser transmitter side to a to-be-measured object side, the collimating lens includes a first lens, a second lens, a third lens and an aperture stop. The first lens is a lens with positive power and includes a convex object side surface. The second lens is a lens having negative power and includes a concave object side surface. The third lens is a lens having positive power and includes a convex image side surface. The change rate of the refractive index of the first lens with temperature in the range of 0 to 60° C. satisfies that (dn/dt)1>?10×10?6/° C. So, the aging of the lens can be effectively delayed. With the same size laser transmitter, the focal length of the system is larger, the field of view angle is smaller.

Abstract: The present disclosure provides a miniature imaging lens including, along an optical axis in order 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 negative refractive power; and a filter. The miniature imaging lens satisfies a conditional expression 2<f1/R1<3, where f1 denotes a focal length of the first lens, and R1 denotes a radius of curvature of the object-side surface of the first lens.