Abstract: An infrared ray-tracing lens module is provided. The infrared ray-tracing lens module is adapted to receive light from an object. The infrared ray-tracing lens module includes a first positive diopter lens, a second positive diopter lens, a negative diopter lens and an image unit. The first positive diopter lens, the second positive diopter lens and the negative diopter lens are arranged along an optical axis, and the light travels from the object, sequentially passes through the first positive diopter lens, the second positive diopter lens and the negative diopter lens to be projected to the image unit.

Abstract: A wide-angle lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens, all of which are arranged in sequence from an object side to an image side along an optical axis. The first, second lens are convex-concave lenses with negative refractive power and include a convex surface facing the object side and a concave surface facing the image side respectively. The third lens is with positive refractive power and includes a convex surface facing the image side. The fourth, seventh lens are biconvex lenses. The fifth, sixth lens are with refractive power. The fifth lens and the sixth lens satisfy: ?10<f56/f<?2 wherein f56 is an effective focal length of a combination of the fifth lens and the sixth lens, and f is an effective focal length of the wide-angle lens.

Abstract: An image capturing lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens, all of which are arranged in an order from an object side to an image side thereof. The first lens is with refractive power. The second lens is with refractive power. The third lens is with positive refractive power and has a convex surface facing the image side of the image capturing lens assembly. The fourth lens is with refractive power. The fifth lens is with refractive power. The sixth lens is with refractive power.

Abstract: An optical module (10) comprises a positive meniscus lens (16) having a focal length F1 and comprising a first convex optical surface (12) and a second concave optical surface (20), and a plano-convex lens (22) having a focal length F1 and comprising a third flat optical surface (24) and a fourth convex optical surface (26) from an object side (12) to an image side (14). The curvatures of the four optical surfaces (12, 20, 24, 26) are defined by the equation: Zi=CURViYi2/(1+(1+Ki)CURVi2Yi2)½)+(Ai)Yi2+(Bi)Yi4+(Ci)Yi6+(Di)Yi8, and the two lenses are defined by 0.35<F1/F2<0.90, 0.30<Conv2/Conv<0.70, and 0.50<M1/M2<1.

Abstract: An optical module (10) comprises a positive meniscus lens (16) having a focal length F1 and comprising a first convex optical surface (12) and a second concave optical surface (20), and a plano-convex lens (22) having a focal length F1 and comprising a third flat optical surface (24) and a fourth convex optical surface (26) from an object side (12) to an image side (14). The curvatures of the four optical surfaces (12, 20, 24, 26) are defined by the equation: Zi=CURViYi2/(1+(1+Ki)CURVi2Yi2)½)+(Ai)Yi2+(Bi)Yi4+(Ci)Yi6+(Di)Yi8, and the two lenses are defined by 0.35<F1/F2<0.90, 0.30<Conv2/Conv<0.70, and 0.50<M1/M2<1.

Abstract: An optical module comprises: a first positive meniscus lens having a focal length F1 and comprising a first convex optical surface facing an object side, and a second concave optical surface facing an image side; a second positive meniscus lens having a focal length F2 and comprising a third concave optical surface facing the object side, and a fourth convex optical surface facing the image side. The four surfaces follow the curvature equation: Zi=CURViYi2/(1+(1?(1+Ki)CURVi2Yi2)1/2)+(Ai)Yi2+(Bi)Yi4+(Ci)Yi6+(Di)Yi8 with Mi=1?(1+Ki)(CURVi)2(Ri)2 where: i is the surface number, Ki is the conic constant of the i-th surface; CURVi is the curvature of the i-th surface at the optical axis; Ai, Bi, Ci, Di, are aspheric coefficients of the i-th surface; Ri is the effective radius of aperture of the i-th surface. The following relations are satisfied: 0.60<F1/F2<1.45, 2<sqrt(M2/M1)<7.